OF THE INTERNATIONAL MOTOR SPORTS ASSOCIATION, Inc. · 2010-05-17 · sanctioned race events. 3.4...

-

SA CODE , COMPETITION RULES

OF THE

INTERNATIONAL MOTOR SPORTS

ASSOCIATION, Inc.

P.O. Box 3485 Bridgepoh Conn. OW05

(209) 396-2116

1981

/..

PREFACE To enhance the satetv of oarticinants and soectatars at IMSA- ~ ~ ~ ~ ~~ ~ , ~ . ~, -

san~t10ned a~tomobore raceland to pro" detor me order y conauctot events reqvoresadherencetotneserules. tho IMSA CODE, nereonafter set IoRh. All IMSA license holdersand members agree tocomply with these IMSA rules, as they may be amended from time to time, which rules. as interpreted by IMSA, govern the conduct and organization of 811 IMSA-sanctioned events. The 1981 IMSA CODE supersedes all previous editlons of the IMSA CODE as well as all amendments thereto, and shall remain in farce and effect except as amended as provided herein, until superseded by publication of the next edition of the IMSA CODE.

CONTENTS

1 CHAPTER I

ITEM PAGE

The IMSA CODE sets forth the rules and standards lverning lMSAcompetition.The1981 IMSACODEbecomes fective on the date of its publication . These rulesgovern the ~nction. organization and conduct of IMSA events. the igibility of cars and competitors. and the standing

regulations of IMSA Series . The 1981 IMSA CODE contains most of the information

competitors need l o take part in IMSA activities . References are frequently made to the FIA International Sporting Code. however. and contestants will f ind it helpful to become acquainted with it. especially Appendix J . ...

We havetriedtomakethe1981 IMSACODEconvenientand 1 2.10 uncomplicated as possible . You'll find aminimum of bureau- 1 3 . cratic jargon .

The main body of the CODE has changed vety little . Car rules have been updated as experience and world trends have dictated . I urge a11 IMSA competitors. crews and officials to become

thoroughly familiar with the 1981 IMSA CODE . A good working knowledge of these rules is key to the continued warm and cooperative atmosphere which has always been one of IMSA's better distinctions .

Have a safe and enjoyable season .

JOHN M . BISHOP

President. IMSA

CONTROL OF COMPETITION . . . . . . . . . . . . . . . . . 1 lnternatona Control . . . . . . . . . . . . . . . . . . . . . . . . . . t Nat ona Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 IMSA Control .................................. 1 IMSA Commis~ioner ........................... 1 DEFINITIONS -TERMS ........................ 2 IMSA . International Motor Sports Ass'". Inc ..... 2 IMSA Code .................................... 2 A~tomobile/C~r ................................ 2 Pump Fuel .................................... 2 Competition ................................... 2 Event 2 SBnCliOn 2 Driver ......................................... 3 Entrant ........................................ 3 Promoter ...................................... 3 MEMBERSHIP . LICENSES .................... 3 IMSA Members ................................ 3 Application Forms ............................. 3 Competition License ........................... 3 Crew License .................................. 3 Insurance ..................................... 3 IMSAConduet ................................. 3 EVENTS ....................................... 4 Organization .................................. 4 Approval ...................................... 4 Acknowledgment of Rules ...................... 4 Sanctions ..................................... 4 Supplementary Regulations (SR) ............... 4 Insurance ..................................... 5 Postponement . Abandonment . Cancellation ..... 5

.................................. Cla~sification 5 Courses ....................................... 5

.......................... Course Measurement 5 Timing . Scoring. Starts . Finishes. Results ....... 6 Slarts ......................................... 6 Startlng Line .................................. 6 Startmg Positions .............................. 6 Timing and Scoring ............................ 6 Control Line ................................... 6 Starter ........................................ 7 FalEe Stan ..................................... 7 Restart ........................................ 7 Minimum Duration ............................. 7 Ties ........................................... 7 Winner ........................................ 7 Aw~rds ........................................ 7

CHAPTER ITEM PAGE

5 . ENTRANTS . DRIVERS ........................ 8 5.1 Competition License ........................... 8 5.2 FIA License ................................... 8 5.3 Entries ........................................ 8 5.4 Refusal ........................................ 6 5.5 Falsification ................................... 8 5.6 Scratch ....................................... 8 5.7 Conduct ....................................... 8

................................. 5.8 Re~~OnSibilitV 9 5.9 Alcoholic Beverages ........................... 9 5.10 Medical Responsibility of Drivers ............... 9 5.11 Safety Equipment .............................. 9 5.12 Advertising . Promotion -Contingency Prizes ... 9 6 . RACING RULES ............................. 10 6.1 Passing ..................................... 10 6.1.1 Pit Entry .................................... 10 6.2 Flag Signals ................................. 10 62.1 Green Flag .................................. 10 6.2.2 Blue Flag .................................... 10 62.3 Yellow Flag .................................. 11 6.2.4 White Flag ................................... 11 62.5 Yellow Flag with Vertical Red Stripes ......... 11 6.2.6 Black Flag ................................... 11 6.2.7 Black Flaa with Oranoe Disc ................. 11 .

Red Flag .................................... 11 ............. Black and White Checkered Flag 11

Checkered and Black Flags Shown Together . . 12 Rules When Away From Pits .................. 12 Rulesofthe Pits ............................. 12 Uniforms .................................... 12 Fueling ...................................... 12 Crews ....................................... 12 Fire Prevention .............................. 12 Pushing ..................................... 12 Removal From Pits ........................... 13 OFFICIALS .................................. 13 Supervision .................................. 13 Appointment of Officials ..................... 13 Conduct ..................................... 13 Separation and Plurality of Duties ............ 13

................ Race Director (Chief Steward) 14 Stewards .................................... 14 Starter ...................................... 14 Timekeeper (Timer and Scorer) ............... 14 Technical Inspector (Scrutineer) .............. 15 Flag Marshal ................................ 15 Communications Marshal .................... 15 Course Marshal .............................. 15 Medical Director ............................. 15

CHAPTER ITEM

PENALTIES ................................. Range 01 Penalties ........................... Fine ......................................... Disqualilication .............................. Suspension ..................................

............................... LOSS of Points Expulsion ................................... PROTESTS .................................. Form ........................................ Time Limits .................................. Protests Against Cars ........................ Disposition of Protests ....................... Awards ...................................... Maliciou~ Protests ...........................

................... ............. APPEALS .. Effect ....................................... Form ........................................ Hearing .................... .. .............. Judgment ................... .... .......... Mal~cious Appeals ........................... AUTOMOBILES

.................................... Eligibility ........................... Recognition Forms

................................ Configuration Safety Requirements for All GT Cars ..........

............................ Minimum Weights Authorized Modifications ..................... Grand Tourina (GTO and GTUl .............. . . Experimental GT (GTX) ......................

................... All-American GTn (AAGT) GT Prototype (GTP) ......................... Eligibility Lists ............................... GTO Division ................................ GTU Division ................................ Experimental GT Division (GTX) .............. All-American GTe Division (AAGT) ........... GT Prototype (GTP) ......................... IMSA RS (Racing Stock) Category ............

.................................... Eligibillly Configuration ................................

......................... Safety Requirements ....................... Optional Modifications

RS Sedan Eligibility List and Specifications ...

CHAPTER ITEM PAGE

.......... 11.6 IMSA American Challenge Category 49 ..................................... 11.6.1 Purpose 49 .................................... 11.6.2 Eligibility 49

................................ 71.6.3 Configuration 49 ...... 11.6.4 Official Weight ................... .... 49

....................... 11.6.5 Required Modifications 49 11 6.6 Other Modifications .......................... 50 116.7 Approved Makes and Models. Engines.

............................. Official Weight 54 12. STANDING SUPPLEMENTARY REGULATIONS 56

............................ 12.1 Camel GT Series 56 12.1.1 Duration .................................... 56 12.1.2 Car Eligibility ................................ 56 121.3 Driver Champions ........................... 56 12.1.4 Manufacturer Champions .................... 57

........................ 12.1.5 Camel GT Point Fund 57 12.1.5 Advertising .................................. 58

....... 12.2 Champion Spark Plug Challenge Series 58 122.1 Duration .................................... 58 12.2.2 Car Eligibility ................................ 58 72.23 Driver Champion ...................... 58 12.2.4 Manufacturer Champion ..................... 59

.................................. 12.2.5 Point Fund 59 12.2.6 Advertising .................................. 60

............. 12.3 Kelly American Challenge Series 60 .................................... 123.1 Duration 60

12.3.2 Car Eligibility ................................ 60 12.33 Driver Champion ............................ 60

..................... 12.3.4 Manufacturer Champion 61 .................................. 12.3.5 Point Fund 61

12.36 Advertising ..................... ..... ....... 62 13. .................................. APPENDIX M

Equivalence Formulas ........................ M

1. CONTROL OF COMPETITION 1.1 lnlemational Control

The Federation Internationale de I'Automobile (FIA) istheauthority which governs rules for international automobile competitions and wovld ~hamoionshin Series 01 camoetitionr. FIA has ~ublished the In- . ternat onal Sport ng Coae vrntcn cantarns tne ruler under whtcn all FIA- %lea e*ents are organozea and cond~cted Except as prov!ded in An clc 12 ol me MSA CODE. F A s me f nal lnternal~onal eaun a1 appeal for appealable disputes arising out of FIA-listed events.

12 National Control The Automobile Competition Committea lor the United States. FIA

(ACCUS) is recognized by FiA as the National Sporting Authority (ASN) for the United States. ACCUS is therefore the sole authority which oversees international automobilemmpetitions in the U.S.A., its territories and protectorates.

ACCUS is in turn composed of representatives of its live member clubs and a number of individuals. The member clubs of ACCUS are:

- International Motor Sports Association. Inc. (IMSA), - National Association for Stock Car Auto Racing. Inc. (NASCAR). - National Hot Rod Association. lnc. (NHRA). - Sports Car Club of America, lne. (SCCA), and - United States Auto Club. Inc. (USAC). ACCUS delegates to its member clubs most of the normal dutiesof

anASN,includingtheauthorityto~rganize, sanctionand conductFIA- listed events. and events counting towards international and world championships.

1.3 IMSA CONTROL The International Motor Sports Association. Inc. has established

these rules (the IMSA Code) which govern!he sanction, organization and conduct of IMSA-sanctioned events, the standards foreligibility and conduct of competitors and officials, the regulations foreligibility and preparation of automobiles, and the rules for annual IMSAseries of events.

IMSA may amend the IMSA Code from time to time by publishinga noticeof amendment in eitheran IMSA bulletinor newsletter mailedto ~~ ~ ~ ~~ ~

IMSA campetitors,andanamendmentshall becomeeffectiveupon the date of such mailing unless otherwise provided in the notice of amendment.

1.4 IMSA Commissioner IMSA shall appoint a Commissioner responsible far the orderly ad-

ministration of appeals in accordance with Article 10 of the IMSA CODE and other specific duties and projects assigned by IMSA.

The Commissionershalldecideon behalfof 1MSA.whetherornotan appeal should beconsideredand heard,and hisdecisionshall be final.

Notwithstanding Article 10.3. if the Commissioner decides that an

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appeal should be heard, he may name a court of appeal. Or healone may hear the appeal. The court of appeal or the Commissioner shall render a iudament in accordance with Article 10.4 and this iudgment ~ ~~ .~ ~- . . shall be final and binding upon all IMSA members.

The Commissioner shall prepare for IMSA a written report of all appeal proceedings, which shall be subject to the same right of publication set forth in Article 10.4. I

2. DEFINITIONS-TERMS Standard nomenclature will be used wherever practicable In IMSA

activities

2.1 IMSA-International Motor Sports Association. Inc.. P.O. Box 3465, Bridgeport, CT 06605. a national sanctioning organization formed to promote motor sports: to organize. sanction. supe~ ise and conduct motor sports events; to promote uniform rules and safer standards: to collect and disseminate information relating to motor sports: to supervise and grant affiliation to other organizations with similar purposes, and to cooperate with such organizations: and to undertake any other activities to advance motor sports.

2.2 IMSA Code - - - - - - ~

The aw$ and ragulst~onsga~ern ng the sanctioning and conduct01 IMSA-sanclloned events IMSA may amena tne IMSA Code from tome to t me by publlrh ng noticesolamenamentin IMSA bulletlnsor news- lelters. as provided in Article 1.3 hereof

2.3 A~l~mobl le/CIIr A self-propelled land vehicle running on at least four wheels not In a

line which must always be in contact with the ground. At least two wheels must effect the steering and at least hvo the propulsion.

2.4 P u m ~ Fuel 1 Anv oride of automotive aasoiine available at roadside stations. 1 . - -

wntno~t sdofttons of any natureexcept upperwbe whlcn mLst beadded 0 rect y ~otnegasol~nelankandnattnro~ghany lnlecl8onordropollsr 3ystem. and whoch must not ralre tne Octane ratlng (See Art I 1 21

2.5 Comp.Ullm A contest in which an automobile takes part and which iso famm-

petitive nature or is given a competitive nature by publication of resuits.

2.6 Event An entire program of competitions.

2.7 Sanctlon The dacumentaryauthority granted by IMSA toorganizeand hold a

competition.

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2.8 Drlrer A person named as the driver of an automobile in a competition.

2.9 Entrant A person or organization whose automobile is accepted foreompe-

tition.

2.10 Promobr A person or body controlling a facility where events are organized,

promoted and staged.

3. MEMBERSHIP - LICENSES 3.1 IMSA members are independent contractors and are neither agents, servants nor employees of IMSA, and IMSA members assume and take full responsibility for reporting and paying to theappropriate

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authorities all charges, premiums, and taxes, if any, due or payableon any funds iMSA members may receiveas a result d their participation in IMSA-sanctioned events, including but not limited tosocialsecurity taxes. unemployment insurance taxes, compensation insurance. income taxes and withholding taxes.

3.2 Appllcatlon forms for an IMSA membership and/or license may be obtained from IMSA headquarters, which is solely responsible for issuing such memberships and licenses. Membership and/or license application forms must befully executed, signed by the applicant,and accompanied by the requisite funds. The mereacceptance ofan IMSA membership andlor license application form and fee by an iMSA official does notconstitutetheissuanceoforapproval by IMSAofsuch application. Applicants will be advised in writing by iMSA headquarters whether their application for IMSA membership andlor license has been approved.

3.3 Competition LleenK is required of drivers. entrants, officials. promoters and industry representatives; in other words, all key persons directly involved in the conduct and presentation of IMSA- sanctioned race events.

3.4 Crew Licenseis requiredofmechanics.crew membersand others who are issued pit pa~~credant ia ls but whodo not have key responsi- bilities in staging IMSA-sanctioned events.

3.5 Competition and Crew License holders are covered by a $5,000 accidental death insurance ~o l t cv which is in effect 24 hours a dav , , ~ ~ ~~~ ~~ ~ ~~. rnrovgnodt tne b r m o l thc calcnaar year mpr nteo on the r licenses Reg strallon for In s MSA o e n ~ t I is maae at Ine lame appl~~alooo for rucn MSA lleenre is appro...> 0, MSA neaoqLarlers.

3.6 IMSA is dedicated to the highest standards of safety and sports-

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manlike conduct, and all membersandlor license holdersarerequired l o conduct themselves accordingly.

4. EVENTS 4.1 Organlzstlo+An IMSA event may be organized by

a. IMSA b. An Atfiliated Organization of IMSA c. Oth'er organizations or promoters approved by IMSA.

4.11 Approval The name, service mark or emblem of IMSA may baasrociated only

with activities and events which have been rapproved by IMSA.

4.12 Acknowledgement of Rules Every driver, entrant, otficial, promoter VI vuln ~ ~ ~ t i c i p a n t In an

IMSA-sanctioned event, and every person who is issued an IMSA license, is deemed to be acquainted with the IMSA Code and has agreed to abide thereby. I t is assumed that he agrees without reservation to conduct himself inaccordance with the IMSA Codeand renounces the right to any recourse or tribunal not provided for in the IMSA Code except with the consent of IMSA.

4.1.3 Sanctions Everyspeeil event with which IMSA's name,servicemerkoremblem

is associated must be formally sanctioned by IMSA.

4.1.4 Supplementary Regulations (SR)-define for all participants the specific conditions for an event. SR usually are combined with entry forms sent to competitors and officials. Since SR accommodate local conditions, they may occasionally appear to contradict a provision of the IMSA Cade: in such a case, the SR take precedence over the IMSA Code.

The SR conlain this information: a. Name, location, dates, nature and classification Of the event. b, IMSA Sanction number and announcement:

''Held under the IMSA Code." C. Name and address of the promoterlorganirer. d. Schedule and loeation of all activities and competitions, classes

of automobiles eligible. etc. e. Entry deadline, fees,numberofentriestobeacceptedandslarted

in each competition. 1. Schedule of awards and prizes. g. Other necessary Informstion. NO changes will normally be made in the SR after entry deadline.

except for reasonsofsafetyorforcesbeyond thecontroiof therespon- Sible officials.

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IMSA requires that ail events be covered by proper liability and participant accident insurance in these minimum limits:

' EVENT LIABILITY: $2,000,000 Combined Single Limit

PARTICIPANT ACCIDENT: Accidental Death-$20,000 Medical Reimbursement-$20,000

I Weekly Indemnlty- $lOOiweek for 104 weeks

i (7 day waiting period)

Event liability coverage far IMSA-sanctioned speed events must I Ordinarily be secured under the IMSA Insurance Program; otherwise.

the insurance policies must be submitted to IMSAforapprovaipriorto the granting of final sanction. Promoters must also make insurance certificates available to the Race Director.

Pallicipant Accident coverage must be secured without exception under the IMSA Insurance Program.

j Every competitor, official, worker, mechanic and other individual who IS issued a pit pass or other such credential must first sign a release and indemnity agreement as provided at official IMSA event 1 reaistration.

t H I oeconsldereda seraour oreacn of lnese rules toenter restr cted areas of tne rac ngc l r c~ l t wotno~l I rst s gnmgrucha releaseano on-

demnll, agreement, to secure8 pol pass orotner creaentnal maer fa sc pretenses, or to transfer such a credential to any other person.

4.1.6 Postponement, Abandonmat, C*ncellatlon If an event is cancelled or postponed for more than 15 days, entry

fees will normally be returned to those who have hadnoopportunityto compete.

4.2 CIasslflcaUon iMSA w, I classtly events accoroong lothednvers and types of aulo-

moo es*nlch ~ l l l lakepan IMSA rll createanamalntalnchamp8on- sn P seroes of events tor Specll c purposes and aLtOrnob~ler

4.3 Courser NO Competition may take place other than On a Courseapproved by

IMSA. IMSA may: a. Limit a course ta certain event classifications. b. Restrict the classes of automobiles to be raced at a course. C. Restrict the number d cars to be started in a race. d. Restrict the course to certain grades of drivers.

4.3.1 Course M e a s u m a t The Official length of a course is normally measured along the

centerline of the road.

4.4 Timing, Scarlng. Starts, Finisher, Results Unless the SR of an event provide otherwise. the fallowing defini-

tions and procedures will be observed at IMSA events.

4.4.1 Stsrt* There are two types of starts: a. The standing start where the cars are stationary at the moment

the Starting signal is given, and b. The roiling start where the cars are moving at the moment the

starling slgnai is given, in which case a pace car may be used to lead the field to the starting line. The rolling start is normally used unless otherwise stated in the supplementary regulations for the event.

4.4.2 Starting Llne-- In a standing start. the starling line is the fixed position of each car

prior to the stalling signal. In a rolling start, the starting line is the point on the coune where

timing begins.

4.4.3 Starting Posltlons Cars wiil normally be placed in the starling iine-up in order of their

speed potential with the fastest to the front of the field. A car may be qualified only by a driver officially entered to drive

tho, n r .. . - . - - . . For events where starting positions for the feature races are deter-

mined by heat races, pale position goes to the winner of the fastest heat. i n case weather or Other unforeseen events create inequitable conditions in separate qualifying sessionsfora race, the Chief Steward may elect to place all cars in the l i n t session in one row and all cars in thesecondsession in theother row, with the fastestsessionon the pole row. Otherwise, pole position goes to the tartest qualifier. The pole is defined as the front row. inside position with respect to the first turn past the starting iine.

4.4.4 Tlming and Scoring a. For the standing start, the timing and scoring commence at the

moment the starting signal is given; or, if automatic apparatus is used, at the instant it is operated.

b. For a roiling start. the timing and scoring commence when the leadinn car crosses the startina line. ~~ ~ n - - ~ ~~ "

r ~ i r s t and st,bseouent laos are normallv timed and scored when - . . . . . . . - eachcarcrorsertheconlro I nealtnet mlngandscorlngstatnon

d AI starllnq cars WI I beeredtlea w th a I nosnfng posot~on wnemer or not they are running when the checkered flag is given.

A drlver is concldered to be a rlarler in a cornpeellon only 11 he has Deen Lnder the Starter s oraerr at any time a w n g tne competlt,on. on hls car and lully preparea to compele

4.4.7 False Stsrt A false start occurs when a driver under the Starter's orders moves

forward from his assigned position before the starting signal isgiven. TheSR may definea penaityortheRaceDirectormayassessapenalty for a false start.

4.4.8 Restart if it should become necessary to stop acompetition, the Race Direc-

tor may restart thecompetition with competitors in theiroriginal starting positions, in single file according to theirstandingsat the time the competition was halted, or as otherwise prescribed in the SR.

No work or replenishment may be done or assistance rendered to any carduring the period afterthecompetition is haitedand restarted, unless specifically authorized by the SR or the Race Director.

4.4.9 Mlnlmum Duration If a competition isstopped at less than 5Wof its scheduled timear

distance and is not restarled, it will beconsidered incomplete, end organizers Will not be normally obligated to distribute awards. If 50% or more has been run. IMSA may call the competition complete.

4.4.10 Ties In case of a tie (dead heat) the competitors concerned will share

equally the sum of the prizes allotted far their positions.

4.4.11 Winner The driver or drivers of the car which completes the distance ofthe

com&tition in the least timeor the greatestdistance in the timesetfor the competition wiil be declared the winner(s).

In Competitions of a given distance, the checkered flag will be given t in t to the winner, then to the other finishers as they cross the finish line.

n compeltt ons of a timed length the cnewered flag will be g ~ e n I rsl lo the leaalng Car as ( 1 Lrosses the llnnsn I neat on after tncexp ra- I on of ins spec81 ea a u a l on tnrn to the other I nrsners asthey cross the finish line.

4.5 Awards AS one of the conditions of granting sanction, IMSA may require a

promoter to post the announced prize money prior to the stall of the event, and that IMSA control the payment of these awards.

4.4.5 Control Line An automobile crosses a Control iine at the instant the center of its

front wheels passesoverthatline, orattheinstant theautomatictiming apparatus is operated.

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5. ENTRANTS - DRIVERS

5.1 Compeutlon Llcenre Every person who enters or drives a car in an IMSA-sanctioned

event, other than an FIA-listed event, shall possess a current IMSA Competition License.

5 2 FIA License Every person who enters or drives a car in an FIA-listed event shall

possess a current FIA entrant and Driver License iMSArequires thet entrantsand Drivers inan FIA-listed event which

is also part ofan lMSAchampionshiprariesadditionally possesslMSA Competition Licenses in order to be eligible for championship Points in that series.

5.3 Entrles An entry submitted and accepted by IMSA for an IMSA-sanctioned

event constitutes a contract binding the entrant to take part in the event, eitherwith thedriver($) designatsdorwith IMSA-approvedsub- stitutedriverf8,unlesstheentrant isexcusedfromcom~etina bvIMSA or~n~e'istneentranl is prevented lromcompet ng by forces oeyund hls control. and sucn an entry 8 % bond ng d o n the organuerr to nold tne event in accoldsnce wlth the IMSA CODE and the S~pLlemenlary Regulations for the event.

If it should bedetermined that an accepted entrsnt hasno intention to take part in nor fulfill his other obligations in connection with an event, the entrant may be deemed to be in violation of these Nles.

5.4 Refusal Organizers may refusetoacceptan entry for any reasonand they are

notobligated togiveanyreason. Such refusal isfinaland notsubjectto orolest or aooeill.

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However, if an entry is refused, the organizers must advise the entrant as quickly as possible, and must return his entry tee.

5.5 FalsIIICallOn An entry which contains false information or incorrect statements

may be considered null and void and the entry fee may be forfeit.

5.6 Scratch An entrant may, with the permission of IMSA, scratch (withdraw)an

entry by advising IMSA of such withdrawal. If such notice is received prior to the entry deadline date, his entry fee will be returned.

However, if anentrant or driver, properly entered inan event, failsto appear,andilinstead heshouldtakepartinanothercompelitiononme same day, he will have violated these rules and may be penalized.

5.7 Conduct Every entrant and driver at an IMSA-sanctioned event is expected to

conduct hlmssifasagentlemanand sportsman andinamannerwhich

will enhance thegood name of motorsportsand IMSA. Failuretodoso may be considered to be a breach of these rules.

5.8 Resaonslbllltv ~~ - -

Drwer~ are rasponsoole lor tne ca pctolion An oftense by a crew men

nductof their lber may be r

a =om- % driver.

5.9 Alcoholic Bererages It IS forbidden to consume any alcoholic beverages during an event

I In the pits, Paddock or any other partionsol premises undercontrol of j the offi~iaIS.

5.10 Medical Responrlblllty 01 Ddwn An IMSA-licensed driver who suffers an injury or illness which af-

fects his ability to drive shall refrain from taking part inan IMSAcom- petition until he is again medically fit.

IMSA or the Race Director of an IMSA event may requirea driverta 1 be examined by a physician prior to issuance of a driver license, be-

[ fore taking part in a competition, or after injury. '

It shall be the responsibility ofan IMSA-licensed driverto reportany unusual medical condition, allergies or anucipated special treatment he may require to the Medical Director priorto each event in which he

1 intends to practice or compete.

, 511 Salehl Equipment Drivers must equip themselves with the follow^ lipment

while taking Part i n an IMSA competition: a. Crash helmet of recognized high quality. It is recommendedthat

helmets meet the specifications Set forth in Title 49. Code of Federal Regulations, Part 571. Federal Motor Vehicle Safety standard Number 571.218, or meet the specifications set forth by the American National Standards Inrtitute. Inc., in NASl 290.1 a 1971 and NASlZ90.1 a 1973, or bear theseal of approval 01 the Snell Foundation.

Driver's name. age, blood type, known allergies, unusual medical ! conditions, and date of most recent tetanus booster shot must be labeled on back of helmet.

b. Suit manufactured of Nomex or equivalent material and cover-

I ing the body from the neck to the ankles and wrists. worn with full-length underwear of similar material.

1 C. Gloves made of leather or tire-resistant material such as Nomex. d. Socks made of fire-resistant material such as Nomex. e. Goggles or face shields in open cars only.

I 1. Hood or face mask of tire-resistant material to cover facial hair

1 or hair protruding from helmet.

512 Advertlslng - Promotion - Contingency Prlzes Entrants and drivers of cars must execute the standard advertising

release provided on each official entry form granting permission for

the useof hisname, photos and photosof his racing carin advertising and promotion material, excluding product endorsement.

TO beeligible forcontingency prires.camptitorsmustactuaiiy use the product in question, display the appropriate decal and executethe Standard advertising release provided.

Competitors must comply with advertising requirements specified lor a SDonsored event and for series of events.

6. RACING RULES 6.1 Pa.rlng

It is the resoonsibiiihr of both the overtakina andovertaken driverto assure sale pass ng at raclng speeor A ear lravellng a one may me the full wooth of tns track rlowever. 11 it isovertaken by afastar car.tne Onver mast gave way to tne overtakfng car Pass ng may oeentner rignt or left depending on the conditions of the moment.

Maneuvers which hinder, obstruct, threaten or create danger to Othercompetitos, whethersuch msneuversaredeliberatearuninten- tional, are strictly prohibited and a breach of these ruies. Drives who violate these rules may be warned, disqualified from the raceor otherwise penalized.

6.1.1 Pit Entw Thmughout the periods of practiceand the race. access to the pits

must be made through the designated deceleration zone or pit entrance. This zone is also considered part of the pits. The Chief Steward may levy a fine or a penalty theequivalent of One race lap for breach ofthis rule. Repeatedviolations may result indisqualificationof the offender.

6.2 FIag Signals The following signalsareused both toadvisedrivesof variouscon-

ditions end to directdrivesto obey variousspecific instructions. Cloth flagsarenormally used, but may be replaced withsimilarly codedrigid signalling boards or with lights. Steady iight isequivalent toa motionless fiag; flashing light, a waved flag.

62.1 Green Flag Start of race, or cancellation of a danger previously signalled. Track

is clear.

6.2.2 Blue FIag Motionle~s: Another competitor isfoliov may be trying

to pass you. Waved: Make way for another competitor who is tryingtopass you. Blue fiag wiii be used only in a case where the overfaken driver o b

viousiy is unaware of the following car. or is clearly obstructing another car.

10

62.3 Y e l h Rag Motionless: Danger: no passing; slow down. Waved: Exmedanger : ~ p I n g ; s i a w d m bepreparedtostop. Motionless veilow flaa is aenerailv usad to advise of an obvdous - -

I danaer or to forewarn of a moreseriousdancerahead. Drivenshould " ~~- ~ ~ ~ ~ - -

stop racong until tney are past the danger lone. Waved yellowflag may mean lmmlnentanoser!ousdangersuchasa

pan'a track blockage. fore on or near the tracr 01 a crowd contmi harard.

When ail fiag stations go to a waved yellowcondition, drivenshouid expect the race to be paced for a number of laps by the safely car, or I else the race to be stopped by the red f lag Slow dawn. Slop racing. Pas~ingofthesafety car isabsolutely forbidden uniessacompetitor is clearly signalled to do so. No passing of any car by another Is permitted. Violations of these emergency rules wiii subject the ottender to penally.

! 62.4 Whlte Rap: Ambulance, firetruck, wrecker, or other service , Vehicle is on the circuit, or, a slow-moving race car is ahead.

6 2 5 Yellow FIag wllh Venkal Red St r ip% Slippery surface.

I 62.6 Black nag Waved: Stop in the pits for consultation next iap.Thisflag is usually

i displayed alongwith the number of thecarconcerned for infractionof i rules 01 the circuit or act of poor sportsmanship.

i f a COmDelilor should fail to obev the black fiao after i t has been dlspiayed l o h m on f o ~ r consecuttve laps, tne Race D rector may 8"-

Struet the Tomekeeper lo stop llmlng and acor nq the car Fdrlea Warnong You havecommltlaa adangero~sor unsportsman-

like action. Desist or you will be penalized.

6.2.7 Bhek Rag rrlm O n w DISC

; Your car has a mechanical faultofwhich youmay not beaware.Stop I at your pit next isp.

I 6 2 8 RedFhg Complete and immediate stop for all can.

1 This flaa is used exciusiveiv at thedirection of the Race Directorto rtopthe race Wnen t is snown or verswll bnngtne~r carstoan orderly stop oft tne c o ~ r s e Eafely end lmmedlately

Wnen so sd,osea by an otllclal arlvers may then orlve thew cars

1 slowly along thecouseto the pits. Noservice of any kind may be per- formed on any casfromthetimethe red flag is shown until the race is restarted, unless it is specifically authorized by the Race Director and announced to ail competitors.

6.2.9 Black .nd.Whlh Checkered Flag End of race. Take one cool-off lap at reduced speed and stopatthe

pits.

62.10 Ch.ckaad and Black Flags S h a n TogeIhW Interruption of practice or qualifying session. Takecool-ofllapand

stop at pits. Expect session to be resumed when temporary difficulty is corrected.

6.3 R u l s When Away from Plb Only the driver may perform work on a car sway from its pits. No

physical assistance may be given the driver in performing such woR. He may proceed on foot to his pit for parts, equipment, and toois: heor his CO-driver may return to the car on foot only.

When the car is stalled on the circuit away from the pits, marshals may push it to a safe position without penalty. It is not permined for a driver lo push his car except in the pits, however.

6.4 RULES OF THE PITS 6.4.1 Unllorms

Crew memDerS shall r e a r clean dniforms or other appropriateand safeatt.reat all tlrnesdurlnga raceinorder lopresenttheoast poawble appearance to the public.

It isrequired thatany crewmembers handling fuelduringaracewear fire resistant clothing covering all exposed akin areas and protective goggles.

6.42. Fueling All fueling in the pits will be done via approved overhead rigs or

standard NASCAR-type 11 gallon cans. Dry-break couplings are mandatory for either. No spillage of fuel will betolerated in the pitaor from the car.

Driver may remain in car and engine may be iefl running durlng refueling, provided a crew member is standing by wilh proper fire extinguisher.

It is forbidden for a crew member to work underneath a car during fueling.

See Art. 11.3 for fueling rig specifications.

6.4.3 C n w A total of 4 persons may actually perform work on acar in the p ib

during a race. Not counted in thistotalareadriverseated in thecar, a driver entering or leaving the car, and industry service representatives examining thecar'sequipment, tiresorothercomponents, orthscrew- man manning a fire extinguisher.

BAA Flm Prewntlon Eachteam must be equipped withafireaxtinguishsrofatleast10lb.

ABC rating. NO electric motordriven l w l s are permined in the pieduring race.

6.4.5 Pushing A cat may be pushed, in Me pits only, by the driver, his crew or 01-

ficials. and may be push-started in the pita if itfsilsto mrl usinp on-

11

board m r souroe, without penalty.

I 6.4.6 R e m l From Pltr Cars may be removed from the pits during a race only win? theap

pmvai of the Chief Steward. Otherwise, ifacarisremovedfrom itspit it I will beassumed it is bein. withdrawn from therace.ChiefStewardwil1 -

normally permlt removal d a car for necessary worktoo inconvantent or ha28ldOuS to do in ins pol. and wlii asslgn a marshal toooserve tne work done.

7. OFFICIALS The officials responsible for conducting an IMSA event are

organized as follows:

1 j-GEGGq TECHNICAL INSPECTOR

) COMMUNICATIONS MARSHAL MEDICAL DIRECTOR

COURSE MARSHAL

Except for the St-rds, they may delegate part of thelr duties to assistants.

In FIA-listed events, the duties of the Race Director (Clerk of the Course) and the Stewards diflersomewhatfrom thoseoutlined in this chapter. (See the FIA International Sporting Code. Chapter X).

1.1 Su-an ... -.-. ~ - . in ado11 on to there ofliclals, IMSA maewes the right to appoint a

parson to evaluate and report on tne evant.

7 2 Appobhent 01 OMclals The Race Director and Stewards are appointed by IMSA. Other

officials are appointed subject to appr~val of iMSA.

7.3 Conduct Every official is expected to conduct himself as a gentleman, in a

manner which will reflect credit on the sport of automobile racing and on IMSA. IMSA may remove an official's appointment and may penai- ize him if he fails to conduct himself proprly.

7 4 S p n t b n and Plurallh 01 Duties An onlclai can nave no rerponono lhty or aLthorlty beyond that at-

tached to h~sappoontment rlowsver. except far tnaRace Dorector and

the Stewards, a person may hold more than one official position.

76 Raca Dlnctor (Chlef Stward) The Race Director is the chief executive at an event and is respon-

sibledlrectly to IMSAforthe conduct oftheevent.Acwrdingiy, he has the duty and authority to:

a. Keep order in cooperation with civil authorities responsible for ~ubl iC Sfetv.

b Execdte the program of COmPetlt~OnY and Otner actmt1es punc- t ~ a y by 01rectlng the drovers and tneor cars, ofllclalr and the,, assistants, and other participants.

C. Prevent ineligible cars and drivers from taking part. d. Order inspection of any Car in order to verify its eligibility. 8. Authorize changes of drivers or cars. 1. Settle protests and disputes. g. Determine whether conditions aresafe to continue the evenL or

else postpone a competition, modify theSR oraltertheschedule for reasons of safetv or forces bevond his control.

h Assess penalties n accordance wltn tne ISMA-Code I Replace any offlclal not able l o pertorm n s dulles I SJPOIYIW the d ~ s t r ~ b ~ l ~ o n 01 awaros t o e lglblo eompelltors k. Compile a report an all aspects of the event as requested by

IMSA.

7.6 Stewards Stewards are appointed for their knowledge, experience, proven

judgment and stature In the sport of automobile racing. In evenu not listed on the FIA calendar. Stewards act only in a judicial or advisory ~apacity. and have no executive responsibility, eitherringlyorcollec1- tlvelv. The Drimarv functions of the Stewards are to:

a Act as a Court 01 lnqbory. when reqdened oy the Race D recror. to cons aer protests and other dlsp~tes Tney may call an0 near wltnelses. Consider erloence an0 mekerecommendatlonstothe Race Director for solving such disputesand assessing penalties.

b. Advise the Race Director on any matters which they feel will improve the conduct or safety of the event.

7.7 Starter The Sterter operates directly ~ n d e r tne Race Dnrector and controls

tne Competing drrvers from the tome the cars take thelr startlng pos - lions untll thecompetition isended and allcars havelefltheracingcir- cuit.

7.8 Tlmekeepr (Tlmer and Sconr) TheTimekeeperand hisstaff are responsibleforthaaccuratetiming

and scoring of the event. He prepares the official results, maintainsof- ficial qualifying timesforCompetingautomobiles,andfurnishestiming and scoring information requested by the Race Director.

7.9 T.eknk.1 l n m t o r (8crutlm.r) The Technical Inspector Is responsible tor checking ell competing

carsfor~sfetyand eligibility. b a n d his assistant^ will conduct inspections at the Race Director's request, and will report any cars which he finds are Unsafe or ineligible.

7.10 Flag Manhal The Flag Marshal is responsible for mrultlng. training and arsign-

ment of race control personnel at corner stations.

7.11 Communlutlons Manhsl The Communications Marshal is responsible for operation of the

System used for transmining and receiving Information between central control and the corner stations.

7.12 COY- Manhml ~~~ ~~ -

The C o u w Marshal is responsible lor final preparation and main- tenance of the racing plant, and other related duties assigned by the Race Director.

7.13 Medlu l D l n ~ t o r The Medical Director is responsible for staffing and operating the

event medical establishment withqualified physicians, nurses and first aid personnel. His primary responsibility and purpose isthe treatment and disposition of any injuriesincvrred bythe panicipantsintheevent.

1 8. PENALTIES I Any driver, entrant. official or other participant who violates these

rUlesortheSRofanevent,attempts tobribeanyoneconnected withan IMSA event or activity or is party to a fraud or other act prejudicial to IMSA and the good reputation of motorspons may be penalized according to the nature of the offense by IMSA, the Race Director of an event, or by a court convened by IMSA.

IMSA shall have the right to publish notlce that it has imposed a penalty and the reasonstherefor, and the perronor body referredtoin such noticeshsil haveno right toact against IMSAortheperson pub- lishing the notice.

8.1 Range ot Penallies 1 Penalties which may be Imposed. in order of their severity, are: 1 a. Fine

b. Disqualification c. Suspension

1 d. LOSS of accrued points e. Expulsion

8 2 Flna I Afineofupto$500may beimposedby IMSA,theRaceDirectarofan

event. or a coun appointed by IMSA. Fines must be paid within one

I I S

week, and a member's competition privileges areautomatically under suspension until the fine is paid. All fines shall be remitted to IMSA, P.O. Box 3465, Bridgeport, Conn. 06605.

8.3 Dlrquallflcation The Race Director may disqualify a driver, an entrant or an auto-

mobile from competition, in which case his rights toany awards in the competition are forfeit, and the official results will advance the next competitor accardingly.

8.4 Suswnrim IMSA or a court appointed by iMSA may suspend a membefs pri-

vilege to take part in competition for a definite or indefinite period.

8s LOU of Polnts Loss of accrued points earned bya competitor may beimposed by

IMSA or a court appointed by IMSA.

8.6 E a p ~ l o n IMSAor a court appointed by IMSAmay expel a member forserious

offenses.

9. PROTESTS Only an individualentrant or driver taking part inscompetitionmay

enter a protest in that competition. He may prototest any irregularity. decision, act or omission of the promoter, official, entrant or driver which he~onsidemtobeaviolation of theIMSA-CodaorSR,except he may not protest the refusal of an entry.

9.1 Form Protests must be made in writing, specifying the rule considered to

have been violated, accompanied by a protest feeot550.00 and signed by the party making the protest.

9.2 Tlme Llmlt8 Protests must be received bytheRaceDirectorwithingthefallowing

time limits: a. Against the ~ l i d i l y of an entry, qualification of an entrant.drlver

or car: Prior to scheduled closing time far Technical Inspection. b. Against handicap or starting position: Immediately upon their

announcement. C. Against a mistawe or irregularity during a competition: 30 min-

utes after the end of the competition. d. Against the results of a competition: 30 minutes after posting

of the results.

9.3 Pr0t.st1 Apalnst Cam When a protest 13 maaeagaonstacahellglo ity the protestor must

post wtn the Race omrector. 10 addltlonto tne lorms ana tees speclfled i n 9.1, a cash bond adequate to cover the costs ot any disassembiy.in- Spection and reassembly required. The amount of this bond will be

16

determined by the Race Director and Technical Inspector. If the car is found to conform to the rules and the protest is dis-

allowed. this bond will be forteit and will be used to covet the costs involved.

If the car is found to be in violation of the rules and the protest is allowed, this band will be returned to the protestor and the protested party will stand all expenses involved in the inspection, and additionally is subject to penalty assessed by the Race Director.

If an entrant or driver of a protested car does not allow inspection under these tens, he will be disqualified by the Race Director immediately.

9.4 Disposition of Protests The Race Director will as soon as practicableeither personally hear

all partiesand witnesses involved inthedispute.orelse hemay request the Stewards to Conduct such a heamg to consider testimony and other evidence. The Race Director will dispose of the protest and will advise all parties concerned of his decision. If a decision cannot be made immediately, he will advisethe timeand place the judgment will be announced.

All paRieS concerned shall be bound by thejudgmentgiven,except in case of a valid appeal.

9.5 Awards The prizes and other awards may be distributed when the protest

period has elapsed, or at such time as all protestsaftecting the standings have been settled.

9.6 M a l i ~ I ~ s Protests I a protest is judged to have been tiled with malicious or spiteful

intent or otherwise in bad faith, the Protestor may be found guilty of violating Article 8 of these rules and may be penalized.

10. APPEALS A Person or organization may file an appeal against a judgment at-

fecting him and imposed by the Race D~rector of an event or by an IMSA first court, provided the appellant first gives notice of his intention to appeal to the Race Director or the court.

The IMSA Commissioner (Ref: Art. 1.4) is responsible forthe order- lyadministratian of appeals. He will decide an behalf of IMSAwhether or notanappeal should be considered and heard, and hisdecision wiil be final. In ease the iMSA Commissionerdecidesagainst considering or hearing an appeal, the appeal fee will be returned.

10.1 Eltect GivinQ such notice of intention to aooeal will not affectanv oenaltv . . ~ ~ . 7 ,

or judgment being appealed. The Race Director, however, may with- hold payment of any prizes which wiil be affected pending the out-

come of such appeal.

,n2 Form . - - . . . . . . Appealsmu~t be n wr$tfng.ogned by theappellant.accompanled by

an appsa feeof $100 00.end recelvedetlMSA headquarters w.tnlnten days of announcement o l the judgment be ng appealed

10.3 Hearlng i f IMSA decides to hear an appeal, acaurt will be named. All parties

will beadequately advised of the timeand placeof the hearing and will be entitled to call witnesses, to representthemsalvesorbe represented by advocates, and to present evidence in behalf at their cases.

10.4 Judgment hec court may uphold araeny enappea1,va~veor~ncrearepenaltleS

O ~ ~ Y I D L S ~ Y mposed. levy iresn pena ty, and w.11 determlnedlsposltlon . . of the appeal tee.

he court .hall not order any competition to be rerun IMSA snell navethe r ghtto publosh inei~ogment ol theco~nandto

uso tne namesof partoes nvowed These persons snall haveno rognt to act ega nst MSA the iMSA Comm ssloner or ahomever Pub1 sne* the judgment.

10.5 M~IIcIoYs AppeaC IMSA may penalize the author 01 an appeal judged to bemalicious.

spiteful or who otherwise acts in bad taith.

11. AUTOMOBILES IMSA will publish rules and specifications for variousclasses of can

eligible to compete.

H I Tlres IMSA may regulate the eligibi l i ty of tires in its sanctioned

competitions. In order that no competitor shall have any unusual lire advantage, IMSA may:

- prohibit the use of a brand, model, size or rubber compound unless it is available for sale to all entered competitors.

- impound end inspect a Competitor's tires. - in some circumstances, require aeompetitorto usethesametires

in a race as he used in qualifying.

, ..- . -. A cam must u s o n y pdmpfuelasdet#nea in Chapter2,exceptthat

any non-oxygen-bearlog addlt.vs may be Lsed provtded the SpeclflC oravotv 01 tho res~ l t~ng fuel does no! exceeo 750 as measurea oy a - . hydrometer.

IMSA may require in an event SR that all contestants use the same kind of pump fuel, or the fuel provided at the circuit.

Competitors am responsible lor the transport and security of their fuel f r m the time It isdispensed to them through the track.s tacilities.

11.3 M.ch.nk.1 Condltlon md Technlul lnspnnon ' Each entered car must be inspected and approved by IheTechnical

Inspector before i t will be allowed to participate in competition or practice.

Candamaged oralteredafier Mey have been approved at inspection are subject to reinspaction and approval. Major body.components must be maintained in normal position throughout the competition. questionable can sub]ect to decision ot the Race Director. 1. Technical Inspection will Cover:

a. Eligibility under IMSA rules. b. Safety and design and construction per inspection form. C. Appearance - clean and neat, no old damage. d. Identification numbers must be placed on both doorsand hood.

must be non-retlective end legible to the satistaction of the Timekeeper.

e. Racing tires - mandatory, unleos SR provide othemise. 1. Leakege -not allowed. g. Driver safety equipment, per Art. 5.11. h. Compliance with sponsor advertising.

2. lnsoections a Tne tlmnng, method. and type of car anspaction and the number

of cars to be lnspacted at any event wlll be determined by the Tecnn ca lnsoector -. .~~ ~ ? - - ~ -

b. IMSA reserves the right to impound end inapectcancompeting in an event.

0. It is the responsibility of the driver or car owner to preparea car tor inspection when requested to doso byMeTechnical inspsc(or.

d. Admittance to any area in which inspections are being made is cwtrolled by the Technical Inspector.

3. Satety Requirements for All Cars a. A six point driver restraint system of appmved design must be

installed. b. Passenger sea& seat backs, mala and other loose gear must be

removed, unless car rules specify otherwise.

! C. Steering lock mechanisms must be removed. d. Where applicable. 'a sturdy metal strap must be installed under

the front ot the propeller shaflto preventtheshantmmdropping in case of tailure of the coupling.

, e. An approved net covering the driver's window opening must be securely installed whether or not the window remains open.

f. Center top of steering post must be padded with production center corer or at least twO inches of a resilient material.

g. Windshield safety clips. 3 each st the top and banom, bolted or

riveted to the bodv. and soacad at least 1 2 aoart must be ~~. onrlalleo Safety g ass is requored for wlndsn e d.

h. Rear n noo* straps. 1" x 118". bolted or r vetea 10 00oy at top an0 oortom of g ass. mast oe inslalled, wnere app cable.

i. Scattershields or explosion-prwf bell housings are required on all cars where the failure of the clutch/flywheel could create a hazard to the driver.

j. All cars must be equipped with a masterelectricalcircuit breaker (stopping engineand fuel pumps) which iseasily accessiblefrom both insideand outside thecar, or with twocircuit breaken- one acce$sible from inside and one outside. The circuit breakers must be clearly marked by a spark in a blue triangle.

k. All cars must have at least two operating red brake lights and two tail lights Which Will be illuminated during darkness or periods of rain.

I. Headlight bulbs must be protectedagainst breakage. Headlights may be taped or the bulb (only) may be removed and replaced with metal or fiberalass solid Dlate of same sham as bulb and fltteo n the same manner It sho~ lo oe POSS o e 10 remove plate eas I, lnrlall and operate head1 gnts rleaol qhl modntong recep- laces an0 f~nctlonal w rlng must rems n lnslalled at all tfmes

m. Effective internal and external rear view mirrors must be installed. n. Safetyfuel cell of an approved type must be installed. Dry-break

fuel fillers are highly recommended and body-work may be modified to install them and breathers. Filler orifice and vent shall not protrude beyond the planeoftheoutside mounting surface. Check valves must be installed to prevent lass of fuel from filler and vent. Catch tank or an IMSA approved discriminator valve must be used on the vent tube to orevent s~il laae durina , " " fuel stoos. No soillaae will be tolerated. Refuelina eauioment lo- ~. ~ ~. -~ ~~ ~ ~ ~

cateo *lln n the orlver'r Compartmelll must oe 3n e Oeo SO as to prerenl nazaro to !he drover in even1 of r-ptdre Vent ldbe must extend to the outer body surface and be directed away from hot equipment.

O. Hoods. deck lids and movable body sections must be secured With Supplemental pins or straps. Latches may be de-activated. On cars where a key is required to open the trunk lid, the lock must be deactivated or may be removed.

p. Supplemental pins used to secure movable body sections (such as hoods, doors, fenders, lids and removable tops) must have attaching cables to prevent accidental loss of pin.

0. NO concealed oressure tvoe containers. feed lines or actuatina mecnan Em% are perm llcd even if inoperao c Extra f ~ e ce 1s or Ian%$ conceaneo 07 otherwise. are not permattea

r No pan of a car may t o ~ c h tnegrouno wnon any one of its tlres is deflated.

20

s. Original door latches must be retained on all cars. 1. Overhead fuel rigs are subject to IMSA approval. (Maximum

height to top of fuel rig is 2 meters (6'7"). A maximum hose diameter of 2" i.d. will be permitted. Each rig must have an automatic shutoff valve between tank and hose. Leakage from fuel rigs will not be tolerated.

U. Full roll cagesolapproved design including a side baronthedri- 1 ver's side are mandatory It is recommended fhattheside barex-

lend to the outer skin of the door.

RECOMMENDED R O L L CAGE

IMSA RS SEDANS Main Structure: 1H" x ,090" Secondary Braces: lfi" x ,090"

< IMSA GT AND AMERICAN CHALLENGE Under 2600 lb: 1 % x ,090" Over 2600 1b: 2 x 090"

MATERIAL: Seamless Mild Steel Tubing All dimensions are recommended minimum. For equivalent Strength in alloy steel tubing, see manu-

facturer's reference charts. NO aluminum or other non-ferrous material permitted.

except specifically approved factory installations.

21

11.4 IMSA GT C a t e m 11.4.1 Purpose

The IMSA GT category is designed to promote competition among drivers and manufacturers in an annual series of IMSA-sanctioned professional race events.

11.4.2 ElialbllHv - - - . IMSA wtll determine and publish a lhsl of makes and mooslr of automooller ellglole to compete n tne MSA GT Category Eflglble cam may derive tram one of the following groups. (a) Gnnd Tourlng (GT) - IMSA Group 4 cars. Makes and models homologated by FIA in Groups 1 through 4 of the AppendixJedition inetfeet between January 1.1969and January!. 1976,andaisaofthe edition in effect after January 1, 1976, and other volume-produced modeis recognized by IMSA. (b) Experimental Grand Tourlnp (GTX) - IMSA Group 5 cars. Makes and models derived from FIA Groups 1 through 4 and other volume-produced models and components recognized by IMSA. e) All-Amerlean GTe (AAGT) - Cers of a GT character built from readily available components specifically approved by IMSA. d) Grand Tourlnp Pratolyp (GTP) - Two-seater cars conform ng to rLleS aeveloped loonlly by IMSA an0 tne A~lomobo e C do de I'Ouest (ACO).

11.4.3 Heownition F o m GT cars recognoled in 2 (a) an0 2 (b) are Osscrlbsd in off clal FIA Boolor IMSA homologatlon lorms aua laoe from ACCUS. FIA. SJ le 1204, 1701 ' K St . h W Wash ngton DC 20006 phone: (202) 833-9133, or from IMSA (Cars recognized in 2 (e) and (d) r e quire no recognition forms.) Individual entrantsare responsible for securing theabove formsfor the makeand model entered and shall be prepared toshow them to the IMSA Technical Inspector on demand.

11.4.4 Conflgurstlon Except where these rules require or permit variations. GT. GTX. AAGT and GTP Cars shall be prepared according to the rules hereinafter set forth. GT Cars recagn 2eo n 21.5) may bo prepared accordlnq to FIA Append x .. Gro~ps 2 4 of the ed llon n elfeci at me time tne mane an0 model *as nomologated by FIA

.4.5 Safely Requirements for All GT Can (a) Approved safety fuel cell with a maximum capacity in accord-

ance with 1976 FiA Appendix J. Example: 16W - 2000 cc - 26.4 gallons; 2000 - 2500 cc - 29.1 gallons; Over 2500 cc and all GTP - 31.7 gallons.

Fuel cell in GTcarsmust be positioned closely as practicablelo the originaltank: in GTX. AAGTand GTPcars, perspecial rules contained herein.

(b) On-board fireextinguisher olthe inertgastypewitha minimum capacity 01 10 Ibs. (Halon or Freon), with manual trigger operable both by driver and from outside the car. Trigger must be marked by a red circle with letter " E . Outlets should be directed into driver's and fuel cell compartments.

11.4.6 Mlnlmum Weights (a) GT cars recognized in 2 (a) and havinganenginedisplacement

of more than 2.5 liters (GTO) must meet or exceed the current FIA minimum weight scale for cars in Group 4. GT cars recognized in 2 (a) and having an engine displacement of less than 2.5 liters (GTU) must meet or exceed the following minimum weights: - 4-cylinder pushrod 2-valve engines 0.8 lbs per cc - other 2-valve conventional engines 0.9 Ibs per cc - 4-valve engines 1.0 Ibs per cc - Rotary engines: standard side port 0.9 ibs per cc - peripheral port- ear buret or^ only 2250 lbs - Absoiute minimum weight for any car 1600 lbs

(b) GTX cars recognized in 2(b) must meet or exceed the current FIA minimum wight scale for cars in Group 5.

(c) AAGT cars recognized in 2(c) must meet or exceed thecurrent minimum weight scale for cars in Group 5 less a tolerance of 1on.Theseminimum weightsaretaken with thecar inracecon- figuration with all safety equipment installed, butexcluding the fuel and driver.

(d) GTP cars recognized in 2(d) must meet or exceed theminimum weights specified by their rules.

Engine Displacement up to 1600 cc

2000 cc 2500 cc 3000 cc 3500 cc 1000 CC

1500 cc iooo CC

3 0 0 CC

SOW cc 6500 cc 70W cc

GT-2 (a) Group 4 1631 lb. 1766 lb. 1940 ib. 2083 ib. 2216 lb. 2370 lb. 2469 lb. 2579 ib. 2701 lb. 2600 lb. 2686 lb. 2954 lb.

GTX-2 (b) GIWP 5 1488 lb. 1620 lb. 1764 lb. 1896 lb. 2017 lb. 2136 lb. 2260 lb. 2346 lb. 2458 lb. 2546 lb. 2623 lb. 2690 lb.

23

16W ib. 1706 lb. 1615 ib. 1924 ib. 2033 lb. 2113 lb. 2212 lb. 2291 lb. 2361 ib. 2421 lb.

7500 CC 30W lb. 2734 lb. 2461 lb. BOO0 cc 3042 lb. 2767 ib. 2490 lb.

over 8500 cc 3230 ib. 2932 ib. 2639 ib.

11.4.7 Authorized Modlncallons 11.4.7.1 Grand Tourlng (GTO and GTU)

Cars recognized in 2 (a) are regulated by the following rules, based generally upon FIA Appendix J. 1980 edition. Articles 261 and 265. If a car is found to be modified beyond these rules, IMSA may permit theentrantto compete inGTX.AAGTorGTPcategories, as appropriate.

(a) Minimum weight: per An. 11.4.6. (b) Tooling of original. or homologated replacement, mechani-

cal parts is permined, provided it isalways porsibletoidenti- fy the series-production pan. It is not permined to add material to any mechanical parts of the engine, gearbox or final drive components.

(c) Engine - cylinder head and valves: in addition to the modifications permitted in (b). valves, valve guides and valve seats arefree,except it isnotallowedtochangethe numberof valves per cylinder. Washers may beaddadtothevalvespringassem- bly.

(d) Engine- induction system:free, except thatsupercharging is not permitted unless recognized for a given make and model and approved by IMSA on an individual basis. Superchargers will be strictlv reouiated in anv case. , -

(e) Engine - overborong: up lo 065 in .s permftted provlded the res~it8ng displacement does not exceed the m 1s 01 tne IMSA category (GTOlGTU). 01 r permlttea lo Jse seeres

(f) Engine -exhaust system: free, except that outlet(s) must be located rearward of the driver compartment.

(g) Engine - bearings: may be replaced by others of the same type.

(h) Engine - gaskets: may be replaced or eliminated. (i) Engine - lubrication system: oil sump is free and original ail

pump may be modified. Original number of oil pumps may be changed. Dry sump lubrication is permitted. but tank must be located outside the driver compartment. Oil filters and coolers are free, except they must be mounted

within the bodywork. (j) Engine - camshahs and valve gear: free, except the number.

location and driving system of the camshafts may not be changed.

(k) Engine - pistons, rings, wristpins, connecting rods: free. (I) Engine - other elements:

Free: mountings, cooling fan, water pump, fuel pumps, posi-

24

tion Oltheenginawlthintheoriglnelengineeompanment. Fuel Pumpls) may not be located in drlvefo compartment

(m) Drive train: gearbox ratios, mountings. salection forks and Shill linkage are free. Finaldrive ratios,shaftsandjointsarafree.Umitad-dlporself- locking differential may be fined. Final drivecasing may bere- Placed with another of the same type. Clutch is free.

(n) Suspension: it is permined to strengthen the original suspension pans, add or remove anti-sway bars and axle-locatingde- vices, modify or repiace the suspension springs, add auxiliary apringr, reinforce shock absorber mountings, relocate suspension pivot points. and substitute suspension bushings and joints. Axlelocating devices may not pass through bodywork. except that for GTU division cars a special ruleapplies. Rear seat well may be covered flush with the top of the well; minimum thickness ,035 in. This cover will be considered as the floor/bodywork for this section of the car.

(0) Steering: ratios are free. (PI Wheels and tires: maximum complete wheel widths, based on

engine displacement, may not exceed: UP lo 1300 cc - 9 in.

1600 cc - 10.5 in. 2000 cc - 11.5 in. 3000 cc - 13 in. 5000 cc - 14 in. 6000 cc - 15 in

Over 60W cc - 16 in. (tolerance: l/Z in.)

Ail four wheels must have the same diameter. Spare wheel is optional. Track dimension is limited to satisfactory inner tire clearance. Maximum total car width may not be exceeded.

(q) Electrical equipment: free, except that main headlights and two operating tail/stop lights must belocated in original positions. Headlight bulbsmay be removed andopenings covered with flat or identically-shaped plates in daytimeevents. Banery must be located outside the driver compartment unless homologated. Dual ignition is permitted only if makefmodel is SO recognized and homologated.

(r) Fuel tanks and water radiators: Fuel capacity is limited by An. 11.4.5 (a). Approved safetyfuel cells per FIA FT-3 or FTA standards are required. Filler openings may be relocated. but new fittings must not protrude beyond the plane of the coachwork, and must be installed so that no fuel will leak into any inside compartments of the cat. Fuel tank must be located in the standard position unless change is specifically authorized.

25

Water radiator capacity and location is free, except that no modification can be made to the coachwork.

($1 Brakes: rotors. calioers and drums are free. . . . . ft l Cables and oioes: mav be freelv modified or relocated.exce~t .~, -~~ ~~~ ~ ~, ~~ . ~ ~ ~ ~~~ ~~.~ ~~F

that fuel and high temperature llquid pims shall not pass through driver's compartment unless they are armored.

(u) Springs: may be modified or replaced with othersof thesame type (coil, leaf, etc.) provided they are mounted inthearlginal position. Auxiliaryspringsmay be added oncondition thatthe original springs are retained and continue to pertorm their principal functions.

(v) Coachwork: is defined as all external parts of the cartouched by the air stream and located above the planecreated by the four wheel hubs (driver aboard), and all visible Internal parts of the driverlpassenger compartment, including the floor oanei. The oriainal external sham and material of the coach- - work must be manntalned exceot that the matenal of doors eng ne ana luggage compartment ids i l free Any ~gntsnmg or m~o~lncat~on ~n cn is not express y permlttea is faroldden Any klnd of re nlorcement 0% perm tted Passenger seat and rear seats may be removed. A rigid metallic firewall, flame and leak proof, must be installed to separate the driver campart- ment from the fuel and engine compartments. Fire extinguisher may be installed in the driver compertment. Exterior decorative strips may be removed. For GTU cars, thematerial of fenders is also free. Fender flares, whether of original or Substitute material, mustconform to the fallowing dimensions and diagrams. Inner fender panels may be modified but must enclose the engine compartment completely without gaps

IMSA may recognize alternative fender flares in exceptional cases. Bumpers which are not integrated with thesurrounding coachwork may be removed, in which caseany protruding brackets must also be removed. The material of integrated-type bumpers may be changed, but they must remain standard dimensions and shape. Side windows and winding mechanisms may be removed. Sub-

26

stitute glazed material may be used for the side and rear windows. Aerodynamic devices may be installed as recognized for specificmakesand models.ordesignedtotheselimitations: - must not protrude beyond the perimeter contour of the

coachwork as viewed from above. - must not Confuse the identity of the car. - must not be adjustable from within the car - must not allow air t o pars between device and the

Coachwork. - must not obstruct rear view. - rear device must be located aft of the vertical centerline

of rear axle. - front devicemust belocated below planeofthewheel hubs. Maximum overall width: 200 cm (79 in.), except that Chevrolet Corvette models are permitted 210 cm (83 in.). Firewsll:separatingthedrive/passengercompartmentfrom the engine and fuel Compartments is mandatory. Steel material of 22 gauge is recommended, and may be used to replace in its original position any non-metallic standard firewail.

Iw) Heating System: may be removed. (x) Other options premined:

- reinforced suspension elements interchangeable with originals.

- instrument panel. - sew0 seering. - steering mds. - axle-locating devices. - on-board jacking system, except i n GTU division.

11.4.7.2 ExpHlmental GT (On) Cars recognized in 2 lb) are regulated by Articles 268and 269 of the FIA Appendix J. 1979 or 1980 edition, for Special Production C a n (Group 5). interpreted and applied by IMSA as follows: la) Minimum Weights: (per Art. 11.4.6). lb l CoachworWCharsis-

~i Coachwork Theoutrlde surfaca6shaPeandmater!al olthe Orlo na coachwork and rocker paneismust beratalned and must ramaln ldent loable. except for !he addot~ons. modlfo- cations and substitutions permitted i n these ruler. Overall length of the Coachwork is regulated by the FiA

homologation form: maximum overall width: 2 meters 179 in.).

if) Bodysheiluha3sis: No modification mav be made in me Sertes produced bodyshell andlor chsssns except that re!"- forcements may be added or removed, and rocker panels may be altered for ductlm ourooses - . ~ - ~ ~ ~ - ~

iii) Doors and lids for engine and luggage compartments may

n

be constructed ofsubstitute material providedtheir original outsideshape is retained. Door hingesand handlesaretree but original type of latch must be retained. Lids for engine and luggage compartments may be venti-

lated but must be interchangeable with the originals. iv) Glass surfaces: except for the windshield, which must re-

main as series produced, the transparent material is free. Original sizes and shapes of all glazed areasand openings must be maintained.

V) Cockpit ventilation openings: may be made in the coach- Work at the rear roof edgeabovethe rearwindow andlor in the area between the rearsidewindowandthe rearwindow, but they may not protrude beyond the original surfaces of the coachwork.

vi) Fenders: are free in shape and material but are limited otherwise as follows: - front fenders may not extend rearwards beyond the iead-

ing edges of the front doors. - original wheel arches must be retained. - fenders must eflectively cover the whole widths of the

wheels and tires for at least one-third of their circumference.

- Any rearward openlngs must beclosed by screensor 10"- vcrs la prevent rcelng the tlres lrom the rear

YU) lnsde coachwork Free. excepl - driver seat must be located entirely on one side or the

other of the centerline of the car. - no sharp angles or protrusions on dashboard. - Original bulkheads defining the front and rear of the

driverlpassenger compartment must be retained. Com- ponents other than the engine block, cylinder head@). Sump and crankshaft may be installed such as to pass through these bulkheads if they protrude intocockpit by less than 20cm (measured perpendicularly to bulkhead).

- Floor may be modified, provided original door sills and rocker panels are retained.

- MOdifiCationS are permitted to fit a substitute transmission.

- Spare wheel, required safety equipment, communications gear, and ballast are the only other components which may be installed in drivers compartment.

(c) Mechanical Cohponents:shail not protrudeoutsidetheoriginal coachwork except inside the fenders.

i) Engine: - Original approvedlhomologated cylinder block must be

retained. Displacement may bechanged through boring,

28

sleeving. stroking or de-stroking. Engine may be relocated within original compartment, but centerline of crankshaft relative to chassis must be maintained as Standard

I - Cylinder headsare free, exceptthatthesystemof cooling must remain the same as for the original homologated model.

- Suparchargen may be installed: however engines so equipped will be rated at their actual displacement multi~l ied bv 1.4.

iil Transmission: Free. exceot that the drivino wheels must re- maon as on the orlginal modal, and QearDOx must reta n tts orog nal baslc or entatlon to the otner mechan cal components.

iii) Other mechanical components: free, except the original orientation of all engine and drive train components must be retained.

(d) Suspension: - Original typaof suspension must be retained (i.e., McPher-

son. solid axle, trailing arm, etc.). - Wheelbase must be retained as oriainai. - Chassis mav be reintorced. - PIYOI points may be modol!ad or relocetea - Sprongs and shock abroroers are free - A arms and other such components may be reinforced or

replaced. (e) Sleeting: Free. (1) Wheels and Tires: Maximum prmined complete wheel widths

(i.e.. widest pan of the mounted tireandlor rim) relatetoengine displacement as follows: otherwise free:

up to 1WO cc - 11 in. 13Wcc- 12 in. 16Wcc - 13 in. 2000 cc - 14 in. M W cc - 15 in.

over 3WO cc - 16 in. (tolerance: Ih in.)

(g) Brakes: Free. I (h) Fuel Tanks - Safety fuel cells required per FIA Standard FF3 or FFA.

I - Must be located outside the engine and driver comprl- ments.

- Musf be protected by a metal bulkhead separating tank from driver compartment.

(i) Aerodynamic Devices:

F = t M b W B o r M a x 2 0 c m Aerodynamic devices R=2WbWBorMax40cm must be Inscribed within

frontal projection. Asrodynamic devices must not extend beyond the frontal projection of the car (see diagram). Front swilerlair dam mav not exceed 10K of the wheelbase of the car. or a max mcm of 20 cm (7 87 in I . measured from the front extremity of tne coacnwork, and must be located wlow tne centerline of the front wheeihubr. Rear spoiler may not exceed 20% of the wheelbase, or a maximum of 40 cm. (15.75 in.). measured from the rear extremity of the coachwork. Alternatively. GTX Category cars may be fitted with aerodynamic devic~s which Conform to the rules for iMSA GTCategoryandcon- tained in Art. 7.1 (v)

11.4.7.3 UL-AMERICAN GT' (AAGT) - IMSA has deve oped rbles 10 encourage the dsslgn, connructfon

and Comwtition of GT-type racing cars based on other components. Eligibility of makes, models and engines, and combinations thereof, is controlled by IMSA.

AAGT cars may be modified to the limits prescribed for the GTX Category in AR. 7.2 plus these additional latitudes:

(a) Coachwork-Chassis: - Hood SCOOP may be added to accommodate the induc-

tion system; maximum height: 5% inches above the olane of the standard hood. Maxomum overall wtoth 210 cm (83 inches) Fender flares may extena nta the oaar panels lor on* thord lhe total ongltJdlna lengtn of the door (1 lnch tolerance).

- Inner fender panels may be modified or replaced with others, but may not be removed.

- Coachwork may be lightened and reinforced freely provided the external shapes, dimensions and orientation of the original body shell. doors, windows, rocker panels, hood and deck lids are maintained.

- Chassis is free on condition that standard wheelbase is maintained.

30

(b) Drlve Train: reorientation is permitted to accommodate a combined gearbox-final drive (transaxle).

(c) Engine: may be repasitioned such that all elements of me cylinder black must lie ahead of a vertical plane touching the foremost edge of the windshield base. Firewall may be relocated accordingly. For models in which the standard engine location is furlheraft, theenginemust lie within the limits of the standard compartment. Supercharging is limited to cars withenginedisplscement

of less than 6000cc. ) Wheels: Maximum wmplete wheel width (sectionwidth)

for: - cars under BMX)cc: 20 inches - cars ousr MWX)cc: free

11.4.7.4 GT Pralolyp U n (GTP) 11.4.7.4.1 DeRnnlm

IMSA has developed rules for cars known as GT Protorypes (GTP). GTP cars Shall be two-seaters conceived primarily for wmpetition in closed-circuit races. They shall carry all equipment for normal road use as well as all contemporary safety devices. GTP cars need not meet any minimum production requirement nor beoffered for sale to the public.

GTP Cars may also derive from approved makes and models modified beyond lhescopeofthe rulesunder which they normally Compete. Drovided they remain within the srxrcifications for GTP . . cam. IMSA will act as the final authority on eligibility of cars and

interpretations of these GTP rules.

11.4.7.4.2 Englns Etlglbilily IMSA Gill regulate the eligibility of engines for use in GTP cars. Approved engines may derive from seven basic origins, as follows. 1) High-volume production. 2-velvelpushrod engines. Minimum

production: 10,000. Specifications per 1979-80 MVMA or IMSA homologation forms.

2) High-volume production. 2-valvelohc engines. Minimum production: 5,000. Specifications per 1979-80 MVMA farms. IMSA homologation forms, or FIA Group 113 homologation forms.

3) Standard block engines from (2) fitted with 4-valve cylinder heads. Minimum production: 400. FIA Group 214 homologation forms.

4) High-volume production rotary engines. Minimum production: 5 . m . 1979-80 FIA or IMSA homologation forms.

5) Racing engines - normally aspirated conventional engines. no minimum production.

31

6) Supercharged production engines, 2Yalve/pushrod t a m (1) or 1979-80 FIA-homologated Group 1 engines.

7) Supercharged racing engines. 11.4.7.4.3 Engine Modiflutbns

Displacements desired may be achieved by boring, stroking, sleevlng or destraking. Production-type engines described in paragraphs (1). (2). (3). (4) and (6) may additionally be prepared and tooled per Art. 7.1. Production-type engines described in paragraph (1) may be fined with heavy-duty cylinder heads of standard design offered by the manufacturer. Crankshafts, rods. valves, camshafts, bearings, pistons, rings, gaskets, mountings, other internal parts and accessories are free. Valvetrain girdle may be added. Original cylinder block must remain identifiable.

11.4.7.4.4 Minlmum WelghhIMaxlmum Dhplaeemenh IMSA has developed the following table of equivalences based on the estimated power outputs of the seven engine types.

MAXIMUM DISPLACEMENTS IN LITERS @ ENGINE TYPE 7W KG 800 KG 900 KG

(1) 3.5 4.5 6.0 (2) 2.5 3.5 4.5 (31 2.0 3.0 3.5 14) 2.5 3.0 3.5 (5) 2.0 2.5 3.0 (6) 2.0 2.5 3.5 (7) 1.0 1.3 1.5

Minimum weights are taken with the oar race-ready but without fuel or driver on board. All GTP cars will race in one category regadless of displacement or weight.

11.4.7.4.5 Chas.1.-Body (Rebr to dtagram, page 34) a. Wheelbase - Frse. See fallowing rules on overhangs and

body length. b. Overall Length -Maximum: 480 cm (189 in.). E . Overall Width - Maximum: 200 cm 179 in.1. d. Overhangs (tnclus~ve of any bumpers) -

- Front plus Rear Overhangs must not exceed BOlb of wheelbase.

- Difference between Front and Rear Overhangs must not exceed 15% of wheelbase.

e. Ground Clearance - Minimum: 6 cm (2.5 in). NO part of the Car may touch the ground when any one of its tires is deflated. it is not permitted to improve the aerodynamic efficiency of the car by installing any longitudinal. transverse, sliding, flexible or retractable device between the body and theground.

Total Height -- Minimum: 100 cm (39.5 in.) above ground level. Maximum: 110 cm (43.3 in.) above ground level, measurement taken with full fuel tanks and driver aboard. Inside Room -- Minimum elbow width at the front seats: 130 cm (51 in.), measured between the interior planes of the doors. Driver end oassemer seats must beableto beoccuoied Y!rnLltaneously. ana shall be located symelrocallyon sother slde of lne Centerlone of the car No component may lntruoe onto tnese spaces Drlvefs feel mLsl oe ocatea all of the venocal plane formed by the front axles. TWO doors must be provided giving ready access to driver and passenger seats. Both doors must swing open on hinges mounted an front door post, and in the case of s closed ear. must have release mechanisms operable from both inside and Outside the car. Minimum dimensions for the lower part of the doors: 50 cm (20 in.) horizontal and 30 cm (12 in.) vertical. Doors must not obstruct the lateral vision of the driver.

Windshield-shall be constructed of laminated glass, provide all normal functions of Yisibilitv. orotection and aerodunamics. ~ ~

~ ~ ~ ~

and have a minimum lateral width over a 10 cm (4 in.) band at driver's eye level. of 95 cm (37.5 in.). Rear Vision -- Effective rear vision mirrors shall be fined. Air intakes--ma" orotrude from the olane of the bodvwork ~ ~ ~, - ~ ~~~ ~

~ .~ ~ ~ ~ ~ - , ~

provldea lhey 00 not mpair the rlrlon tneld 01 the drtver. Air .ntake~ mu91 be no hlgner than the hognest point 01 the roof or windshield. whichever is higher.

Aerodynamic Devices - Spoilers, deflectors and otherdevices may be installed on the bodywork only, as follows: 1) if located above the plane of the wheel hubs, they must fall

at least 5 cm (2 in.) within the outside perimeter contours of the car as viewed from above. and are no higher than the highen p r t of the car.

2) if located below the plane of the wheel hubs, they muat not protrude beyond the outside perimeter contour of the car.

3) regulated otherwise by the rules for overall length, width and overhangs.

. WheeisITires - The number of road wheels shall be limited 10f0~r:all rimsshall beof thesamediameter. Max~mumcompiete wheel width (section width): 16 in. Spare wheel, if carded. shall be of a size similar to one of the road wheels and must be carried in its own Compartment outside that of the driver. Equipment -- 2 operating headlights. 2 taillbrake lights and windshield wiper are required as a minimum. Fenders--shall ettectively cover the whole widths of Me wheels and tires tor at least one-third their circumference. Oil Tank-is limited to 20 liters capacity.

33

Ore*...,

mery--must be located outside driver compartment.

3 Safety Devices a. Roll Cage is compulsory. Material and construction speci-

fications of recommended designs are contained in Appendix J, An. 253(e) and in these rules.

b. Safety Fuel Tanks meeting FIA Spec. FT3 or FTA are required and must be mounted outside the drivers compartment and Drotected as far as ~racticabfe bv the roll cam. Maximum capacity: 120 liters (31.7 gal) in one or two tanks. Dry-break fuel fillers and vents are required to prevent spillage.

C. Firewalls constructed of metal must be installed to isolate the dri~erlpa~sengerc~mpartmentfrom the fuel tanksandfromthe engine compartment.

d. Energy Absorption Devices are recommended to befittedalong the exterior vertical walls of the frame box members to protect the driver end fuel tanks. They shall not, however, contain mechanical components such as pumps, filters, pipes, etc.

e. Driver Seat shall be mounted securely to the frame or roll cage structure, but may be adjustable.

1. Six-point Driver Restraint System must be installed. g. Scattershield or expioslon-proof bell housing are required

on cars where failure of the clutch/flywheel could create a hazard to the driver.

h. On-boardfire extinguisherof the inert gas typewithaminimum capacity of I 0 lbs. (Haionor Freon) is required. Trigger must be marked with red circles with letter 'E' and operable by either the driverorfrom the outside thecar. Outlets should bedirected into the driver. engine and fuel compartments.

11.4.8 EII~I~IIIQ L I S ~

IMSA will regulate the eligibility of makes and models to compete In the IMSA GT Category.

11.4.8.1 GT Dirlrlon, Over 2.5 LHers (GTO) Makes and models homolagated by the FIA under Appendix J Groups 1 thrOUgh4since Januaw I. 1969, plusthefollowingmake$ and model* recognized by IMSA:

Chevrolet Corvette 350 (5772) Datsun 2802.280ZX. 280 ZX Turbo (2780) Ford Mustang (1979-80) (4949)

Mustang Turbo 2.3 (3220) Jaguar XJS V-12 (5343) Mercury Capri (1979-80-81) (4949)

Turbo RS. 2.3 (3220)

11.4.8.1.1 Notes

1. It is permined tofit replacement bumpersandfrantspoilermsde of optional material.

2. Pomche RSR Carrera is permitted optional crankcase part no. 930-10191400. 930-10191500 Or 930-10191600. and crankshaft part no. 930-10201400 3.5 liter displacement.

3. Supercharged models may be regulated as to specific con- figurations and induction systems. Displacement will be rated at 1.4 times the actual swept volume of the cylinders.

4. It is permitted to utilize approved, alternate heavy-dutycylinder heads of standard design, offered by the engine manufacturer through his normal sales outlets, and bearing the manu- faoturer's part number. By standard design is meant the same number and location of valves, ports and spark plugs as the original.

5. Triumph TR6 may use optional crankshafi with 3.100 stroke.

11.4.8.2 GT Dlvlrlon, Under 2.5 U t e n (GTU) Makes an0 moue o nornologated by tne FIA under Appenalx J G r o ~ p s I Inrough 4s nce Jandaw I. 1969, plusthelo 10- ng makes an0 moues recognozed by IMSA

Datsun 2402. 2602. 2602 (2429) 280ZX (2429)

Ford Mustang (1979-80) (2300) Porsche 914-6 (2467)

11.4.8.2.1 Notes 1. Datsun 2602,2802 and 260ZX models are permitted the2429cc

engine as used in the 2402 model. 2. Mazda RX-7 is permitted optional peripheral portrotor housing:

with carburetor induction. 3. PorSehe 911 is permitted to use 2.7 chassislbody. 4. Models with displacement less than 2000 cc may be fitted

with 4-valve cylinder head of any origin.

11.4.8.3 Experimental GT Divlslon (GTX) Makes and models homologated by the FIA under Appendix J Groups 1 through 4since Januaryl. 1969.plusthefollowingmakes and models recognized by IMSA: Ferrari Boxer 512

11.4.8.4 All-American GTa Dlvlrlon (AAGT) a. Any approved engine may be installed in an approved model

produced by the same parent manufacturer. b. Engines may be bored, stroked. sleeved or de-stroked to

achieve the desired displacement. C. Supercharged engines limited to BMK) cc displacement.

Approved makes and models.

AMC - AMX - Concord - Gremlin - Hornet - Javelin - Spirit

B ~ i c k - Skyhawk Chevrolet - Carnaro

- Corvette - Monza 2+2 - Nova - Vega

Dodge - Challenger - DartIDemon - DarVLite - Mirada

Datsun 280ZX

Approved Engines

AMC - 304 - 360 - 390 - 401

ChrySler - 318 Corp. - 340

- 355 - 360

Ford - Mustang I1 - Mustang 79-80 - pinto

Mercury - Bobcat - Capri - Cougar

Oldsmobile - Ststfire Plymouth - Barracuda

- Duster - Feather Duster

Pontisc - Astre - Sunbird - Firebird - Firebird Trans-Am

Shelby - American GT 350

Ford Mtr.Co. - 255 - 302 - 351 - 390 - 427 - 428 - 429

Escort 1.4. 1.6 Fiesta 1.7

Gen'l Mtrs. - 229 - 426 - 231 - 440 - 260 - 267 - 305

Datsun - 260 ZX (26) - 305lAluminum - President V-8 (4.5) - 350

- 350lAluminum - 396 - 400 - 427lAluminum - 454 - 455 - 231 Turbo

37

11.4.0.5 GT Pmtohpe (GTP) Engine Eligibiliv - Partial I is t~IMSA may approve other englnes uwn application. (Ref: Art. 11.4.7.4, para. 4) Type 1 - AMC V-8 304. 3M)

Chevrolet V-6 173, 229 V-8 2MI, 267, 305, 350

Chrysler V-8 318. 3W Dstsun V-8 President 4.5 Ford V-6 2.8

V-8 255. 302. 351 Triumph V-8 3.5

Type 2 - Alfa Romeo L-412.0 BMW L-412.0, L-612.6, 3.0 Daimier-Benz L-61280, 300. V-8 350.450 Datsun L-412.0. L-6/280ZX Fiat L-412.0 Ford Escort L-411.9 Porsche 9115 0-612.7

924 L-412.0 928 V-8 4.5

Toyola L-412.0

Type 3 - BMW L-4n.O 4-valve L-613.5 4-valve

Dabun L-4n.0 4-valve Ford Cosworth L-4 BDA &valve Toyola L-412.0 +valve

Type 4 - Marda Rotary RX-2. 3. 7 2.3 RX-4 2.6

Type 5 - Brian Hart L-412.0 Ford Cosworth V-8 3.0 Other F.1 3 liter normally-aspirated engines

Type 6 - BMW L-411.6. 2.0. LW2.5. 3.0 Chevrolel V-6 173, 229. 231 Daimler-Benr L-81200. 230. 280. V-8 350 Dateun 810 L-612.4 Toyota L-411.6, 2.0

Type 7 - F. 1 1.5-liter Turbocharged engines

11.5 IMSA RS (Raclng Stock) Category 11.5.1. Purpose

This category is intended to promote interen in race competition lor vo l~meprod~ced stock cars available l o the American public; l o aenerate Dublicitv for Com~etina drivers. entrants and manu- fact~rers. to encourage ind voauslr to MCOmeacllvecOmpet tom an0 to enab etnem to compete fnprolessoonalracesrrlthrelst~vely modest nvestments and melntenance costs

M

1152. Ellglblllty IMSA Wil l recognize specific makes and models of cars eligible to compete. To qualify, a model must be: - Produced and marketed in sufficient volume so that itsspecifi-

cations are standard and mav be easiiv checked. and so that carsand spare parts may be oblalneo easlly.

- Marketed to tne pub1.c in lne JSA. - A b l e l 0 ~ e ~ t 4 a ~ e ~ a g e - ~ ~ z e o a a ~ I t s ~ 0 m l 0 n a o l ~ attnesametime

as sold to the public. - Produced With an integral hardtop. - Maximum engine size of 4 liters.

11.5.3. Conlbuntlon " IMSA RS ears must conform to standard oroductlon conflouratlon 01 the bas,= mooe Except where tnese rd.er allow rnadof~eat~ons or ¶ ~ b s t ~ I ~ t 0"s. a1 components of the cars mucl oe ldenllcal totnose produced by the manufacturer and delivered to the public in the USA on the basic model recognized. Standardappearancemust be maintained strictly. Each model will have a recognized official weight which must be met or exceeded as raced with full tank of fuel but without driver.

11.5.4. Saletv Reauinmnts . . A Doors must oe ponned or bolted shut, but may not be we d w

P ns or oolto mLst beeasvly removableand doors mLsl operate on Orlglna hlnges when the pons or bolls are remo$ea

B. Fuel cell must be located as closely as possible to the original tank location. Metal bulkheads must be installed, if none exist, to separatethe driver's compartment from the fuel cell and engine compartments. The bottom of the fuel tank may not be located below the centerline of the rear axle. Maximum fuel capacity is 22 gallons.

C. Fireextinguisherof at least 2314 lb, capacity mustbecarriedin the car. On-board fire extinguishing system (Freon type of at least a 4 lb. capacity) is recommended.

1155. D p n o ~ l Modification¶ A. Bodywork:

1. Accessories, lights, gauges and switches may be added or removed and other interior modifications made for thecon- venience and comfort of the driverprovidedthereisnoeffect on the c a h mechanical pertormance. Driver's seat may be replaced.

2. Cables and lines may be rerouted and protecled. 3. Standard Inner fender material may be reshaped. 4. Headliner may be removed. Bumpem and brackets must r e

main asoriainal but mav be uodated or backdatedwithinthe , . mooe range recognized Front door glass and regulators may be remove3 A I otner glass must remaln and tbnct on

as Originally installed. Interior door panels and trim panels must be fitted but may be modified to clear roll cage. Panels mav be mounted with screws or other fasteners but mav not ' cover ooeninas where window oriainaliv ooerated. Panels - . may oe mane of s,ostltute matella1 lmelal or f oerglarr) r e

lemb ,ng orog nal pane r and palnted to matcn nternor 5 Parkong I gnt lenses may be removea andtneorlgrna open-

ings used for ducting to brakes. 6. Thestandard sheet metal panel betweenthegrilleand radia-

tor may be modified to accommodate larger radiator, oil cooler and ducting.

7. Aerodynamic devices are limited as follows: - Front: Approvedfront airdam offered by themanufacturer lor the model raced or through aftermarket sources. Orelse a flat, vertical front spoiler made of sheet metal may be installed below the lower edoe of the front bumoer. These dev~ces may oe rented for Drake coo inq 0 . ~ 1 ~ an0 mbct provnde for a gr0.no c earan'e ol 4 lncner a9 race0 - Rear Approve0 spofler offered by the man~fsct.rrr for the model raced, or through aftermarket sources, or else a flat, vertical rear spoiler measuring no more than 4 inches in height may be attached to the rearmost surfaceofthe trunk lid. Rear spoiler may be only as wide as the trunk lid, plus or minus 2 inches.

6. Chassis-Tires-Brakes-Wheels: 1. Suspension springs are free, provided they are of the same

typeasoriginally fittedandareinstalied inthestandardposi- tion. McPhersan strut-equipped cars may have the upper strut mount replaced with a slotted plate for camber adjustment. (It is not permitted to thread the strut Or shock absorbers to make the spring perch adjustable.) Shims may be used l o adjust spring height. Conventional rear spring shackles may be made adjustable. The upper ball joint re- taining holes on Opels and Chevettes may be sloned for camber adjustment. Shock absorbers may be altered or replaced with others installed in original supports and brackets. Anti-sway bars, torque rods and similar devices may be added or substituted. Heim joints are permitted on anti-sway bars and factory adjustable front suspension parts. Riding height, measured at theundersidecenter ofthe rocker panel, must be maintained at7" + 1"as checked race ready with fuel but without driver. Axle-locating devices may not pass through body panels.

2. Standard steel wheels or any other steel wheels of 6 inches or less in width may be used on models with official weights

40

less than 2250 ibs., and 7 inchesor lesson models2250 lbs. 07 more. All four road wheels must be identical. Wheels may be strengthened. A tolerance of 1 112 inches from the specified standard track dimension is permitted front and rear. Spare wheel may be removed.

Track is measured as racedstthecenteriineofthewheels.To provide for tire clearance, it is permitted to reshape the original inner fender metal: however, no external modifications to the fenders are permitted.

3. All cars must be equipped with IMSA-approved radial ply tires of a type marketed through normal retail outlets for ordinarystreet use by the public. Noracing or recapped tire-s are permitted.

4. All Carsmust be equipped either with standard brakesasde- livered for the makeand model, or brakesolany origin which do not exceed the following criteria: - Front: Calipers must be iron production-type.

Rotors for cars with under 3000 cc displacement limited to l o inch maximum diameter. Rotors lor cars with 3000 cc or greater displacement limited to 10% inch maximum diameter.

- Rear Drums for cars with under 3000 cc displacement limited to 9 x 1% inch. Drums for cars with 3000 cc or greater displacement limited to 9'h x 2 inch.

The following additional brake modifications are permitted: - Any dual master cylinders and prassureequalizingdevices

may be used. - Lining material is free. - Backing plates and dirt shields may be ventilated or re-

moved andairducts installed provided no modificatiansare made in the body work. Brake ducting inlets with areas of no more than 12 sq. in. per sideare permitted at thefrantof the car below the body work provided there is no effect on the aerodynamics of the car.

- Airduetswith inlets01 12sq in. persidemayalso befitted to the rear brakes.

- Hand brakes may be removed.

C. EIeCtriC~l Syst~m: 1. Battery may be replaced with another of originalvoltageand

size and installed in the standard location. 2. Any make of ignition coil, condenser, spark plugs, fuses,

relays, and regulators of original type may be used. 3. Any banery ignition system may be used. 4. Alternator must function as originally intended, but may be

replaced with another of different manufacture. 41

D. Enoine and Drive Train: 1.-~nginsanddrive train must beas p r o d u d incambination with body and chassis of each recognized make and model. Except where these rules allow modifications or substitutions, ail components must be mounted in standard locations and conform to standard dimensions. It is perminea to machine any component of the engine provided such component is always identifiable as a standard production part, except WhereMeSerUieS requirethat standarddimensions be preserved, such as cylinder bore, stroke, inlet and exhaust ports. carburetor base opening, etc. No material or mechani- c d extension mav be added. ~ ~

2. Cylinder head may be ported and polished; however, inlet and exhaust port sizes at the manifold face may not exceed thedimensionsspecifiedforthe modelengineconcemed. On rotary engines, inletandexhaustports maybe modifiedatthe combustion chamber but must remain original in sire and Configurationat themanifold face. If the ports arechamfered at the manifold face, the port size will be measured at the innennost part of the chamfer.

3. Engine may be clearanced (blueprinted) and balanced. 4. Pistons and Piston rings are free. A tolerance of ,030'' in Cylinder boremeasurement isperminedon reciprocatingpis- ton engines. On rotary engines. Mestandard rotorasdeliver- ed on the U.S. model may not be substituted or modified. Material of seals is free

5 The valve lraln (conslsllng of camrhatt lhftera, follorers. Dusnrocs SPrfngs, keeoers.reta.nersandva ves) lofree however tnelr basoc lype and the locat ons ot valves and cam- shafl(s) may not be changed.

6. Induction System-IMSA may control the induction systems of various makes and models. Unless otherwise noted: - On engines larger than 2000 cc displacement, the standard

carbu~etor may be modified by machiningthethronleshan and butterfly, changing the jet sizes (not jets), and altering the float end mainventuri. Emission controldevices,choke mechanism and air filter may be removed. It is expressly forbidden to drill or othemise alter any pasageways, add any material, install a spacer block betweencarburetorand manifold, eniarge the carburetor base opening, add velocity stacks or to make any other alterations which change the intrinsic design of the standard carburetor.

- On engines with displacement between 1M)O ce and 19W CC, it is permitted to Useany carburetor with thesamenum- ber of venturis as the original, and any intake manifold. Othenvise, carburetor may be modified as for engines

42

larger than 20W cc. - On engines with a displacement larger than 1900 cc and

less than 2000 cc it is permined to use either the standard Carburetor, modified and fined according to theruleforen- gines larger than 1900 cc; or It Is pnnl t ted to me e Holley Model 23W List No. R.4412 500 CFM-ntedcarbuntorand any manifold. This alternative is also permitled for modeisdelivered with fuel injection as standard equipment.

- On engines of less than t6M) cc displacement, i t is permined to use any carburetors, intake manifoldandvelocity stacks.

- On rotary engines. emission control devices and choke mechanism may be removed. Thefioat bowls may be vented to the exterior of the carburetor; however, no other modification may be made to the standard carburetor.

- If an air filter is used on any of the above engines, it must beofa conventional typeusingastandardeiamentthrough which all air to the Carburetor must pass.

- On fuel-injected engines, thestandard componentsmay be adjusted but not modified in any manner nor replaced with Other IYDBS. . -

7 E x n a ~ ~ t System #s free Outlels mdst be located aft of the moo-potnt of the wheelbase No bodywork modltlcatlon 1s permitted. Exhaust megaphones are not permined. The exhaust pipe cutlet mu* be the same size as the exhaust pipe. Rotary engine cars may use an IMSA approved muffler.

8. Oil Sump and ail pickup may be modified to increase oil capacity and to prevent surge, but no dry sump system may be used. Standard oil pump must be retained. "Accurump" may be fitted.

9. Vents. breathersandoil filters mav beaddedorsubstituted. A s ngie o cooler on the englne is perm tted, provlaed it or mo~nted wltnlntheeng necompartmenl (tnatts, between the Inner fenders, flrews, an0 gra 0 and 11 s no1 vosoble from the exterior of the car.

10. Any radiator which will fit the standard location and does not alter the c a h appearance may beinstalled and shrouded. Fan blades may be removed.

11. Fuel pumps are free in type, sireand number, but may not be located in the driver compartment.

12. Any ring and pinion ratio may be used provided the differential housing lorthemodelis retainedandnotmodified.Dif- ferentials may be modified to produce a limited-slip or lock- ed action.

Ditferential oil cooler may be installed provided it is mounted within the confines of the bodywork but outside the driverlpassenger compartment.

13. Heater may be removed. 14. Clutch may be replaced with one of the same type, size.

number of discs, weight and manner of attachment but of different manufacture. Flywheels are free.

15. Cars delivered with Standard displacement less than 1400 cc are permitted to bore andlor stroke up to 1400ccand are permitted 5 speed gearbox, if available to customers from manufacturer's catalog.

E. Non-Standard Components: The following components may be added or replaced with others of any origin: - Nuts. bolts, screws, washenandothersuch fastenen, indud-

ing safety wiring - Any bearings of standard dimensions and type - Bushings - Electrical wiring - Pulleys - Gaskets and seais - Drive belts - Fuel and brake lines

1981 RS SEDAN ELIGIBILITY LIST AND SPECIFICATIONS

om", 024

omni Aelrmt Coil Colt

I 2 1 S V " COUP. ,>a SIXmCouOs I28 Span COUPS (28 Sedan

i l l@ 84.0 18.2 2 bbl 2200 2zm 1191 lbil 68.0 1BB) 840 mo Mi*"", 2"

lBMIIm fmnl Wh-l Drim ,897 mi 77.0 8 5 0 MI*"", I" 3681 BC1 I M B HOIIV 1Y

ten, 4 -hR 1- I

,660 11.24 lam ,m

,em 2300

F1 FLO 11 Barn FI 2m a!

7 4.8.24 7-

z,w m 1830 LI m a 2,- m

ISULU M I I b-oy( SOHC

umr I= RX1 ex. m LilC .-~ YE- eo-, so-t

2474 ( O l d ,112 2W XUS I 9 ne tsa 87M I S M l W

,897 03.0 11.8 -1 2Y ,897 s o soa ,897 1 . 0 W.8 N lam wo M J n

?mo

,m m. mo 1dd7 m4 1w.6 WIW (v 1M) me -.o 2m) U.0 m.0 UllUd 2"

9*i l l l d lW.7 ,716 w.0 n.2 1sa 1241 07.6 77.0

NOTES I Same ,nduetlon rLles as lsOO cc to 2000 cc cars 2 AMCmode r per An 10 5 3- It is prmlnedtointerchangssnglnes.

engine pans tranam $$Ion pans and transmass on3 among all three models.

3. Cars equipped with carburetor may reduce weight to 2100 lbs. 4. Free carburetion is permitted. 5. May use AMC service X8127382, Production X3228973 or

AMC X8129173. 6. Five speed transmission is permitted. 7. Front and rear disc brakes are permitted. 8. Competition cylinder head but not cross flow is permined. 9. For all 1600. 2WO. 23Wand 2800cccars. thechassisand runnina

l4D I D m.9 N -71 161 107.11 712 n 2471 10<.11 16.2 2MI 2&S I D 16.2 2 M1

at oss 1.4 n 2.7, iot.6 76.z n m 1.0 mP m.0 2"

gear laclory pans are lnlerehangeable All models may use the 2800 cc w th assoc~ated 2800 cc weights

10 Four speed transmoss on 0% permolted

I t . For AMC Pacer. Hornet. Gremlin, Concord and Spirit, it is permitted to substitute axle housing Part U4486539 Or #4489003 and associated parts in order t o avoid axle breakage problem experienced with standard equipment.

12. Datsun 6210, 610, 710, 200SX. Ref. Art. 11.5 5D1. The Datsun differential part U9996K4050 may be used.

13. Competition cylinder head is permitted. 14. LUCaS metering unit #54073048and related injectors may besub-

stituted for the Bendix electronic fuel injection unit. 15. Datsun 2OOSX and 510 ('78) models. Optional transmission

part lt32010N 3220 may be fitted. 16. Same induction and carburetion as 1600 to t9W cc cars. 17. GMC cars equippsd with the 231CiD V-6 engine are restricted

to the Rochester 2GE 1-2BBL Carburetor. barrel size 1.437. These engines must also use a 1.25 in. restrictor plate for both barrels. The restrictor r late is to be made of ,040 to .OW metal

~ ~~ ~~~

1 and installed next to carburetor using standard thickness gasket. / NO spacen.

/ 18. May backdate and use '78 Mustang I1 4-speed transmission and differential.

1 19. May use Cspeed BMW (GETRAG) transmission part U23-00-1- 208-475. / 20. Maida RXZ and RX3: m e carburetor vsnturis are restricted in

1 size to 20mm for the primary and 25mm for thesecondary. mesa ; vsnturis must be the same shape and design as the original

venturio. 21. The induction system may not be changed in any manner from

the Production model, other than the alteration of the float and jet sizes.

22. All cars using the232cu. in. enginewill usetheCarterYF-1VlBBL carburetor.

23. Volvo 142 model may use Voivo piston kit U552450 to increase displacement to 2 1 5 0 ~ mamaximum.

24. Models produced with a standard displacement less than 14W cc may be enlarged to 1400 cc by boring or stroking, and may be equipped with a -peed gearbox if available to customer and described in catalog from parent manufacturer.

11.6 IMSA "AMERICAN CHAUENGE" Category 11.6.1. Purpose

This category is designed to promote interest in race competition for American-built, volume-produced sedans marketed to the public thrOUghoUt the US.

IMSA wiii recognize driver and manufacturer champions in an annual Series of races for these cars.

1 . 6 . Eliplblllty IMS.4 will recognizerpecilic makesand modelseligibletocompete and wJUap~rov~thespecificalionsforeach.Toquality,amakeand model must be: - manufactured by a U.S. company and marketed as a 1975 or

later model: - equipped with a standard engine smaller than 6000 cc (366 cu.

in.) displacement: - a standard P d w r o r 4 d w r &an designed toseatat least four

adults. 11.6.3. Configuranon

Official MVMA Specifications Formsfor1975and later models will be used as reference for technical data.

EXCBD~ where these rules allow soecific modificationsor substi. . ~~ ~ ~ . ~ ~~ ~ - - ~~~

IJI on$, a I components m a t be oaenlcal to tnosa delovered by a manufacturer to its L S c.aomerr. Standard appearance murl be maintained strictly.

1 6 . 4 OUklal Weight IMSA will specity foreach makeand modelenofficial weightwhich must be met or exceeded as the car is raced, with all safety equip- men? in place and with a full fuel tank, but without driver. Any bal- lastcarried must besecureiyboltedtothsfloorin thespaeefarmer- iy occupied by the right hand front passenger seat.

1 1 . 5 Required ModBkatlons A. Doors must be securelv bolted or Dinned closed to orovide

Structural integrity and to preventtheir opening in theeventofa crash. Standard hinoer must remain and be ooerative ~~~ . - - ~ ~ a - - -- ~ ~ - - -~ - - ~ ~ ~ . ~ -

B rloods an0 aeCI lhds m ~ s t be secured woth plnsor Plraps hooa and t r d h as m.sl oe aD e l o oe openea from oulsnde the car Latches may be removed. Standard hingesandspringsmustre main and operate as originally intended. Hatch-back must be securely wnneu c orea

C Maxlmum lue cspac ly 32 gal onn far 8 cyl models and 22 ga ons for 6 cyl models I t s recommendea tnat the luc llller be installed on vertlcai surface of the rear quarter panel away from traffic, and further that it be mounted so that it may be changed from one side to the other to accommodate ditferent tracks. Fuel cell must be installed in the standard location as cioseiy as possible. A steel bulkhead with minimum thickness of 22 gauge (032 - .035 in.) must be installed tosealcompietely

49

the fuei compartment trom the driver compartment, Bottom of the fuei cell may not be located more than 2" below the lowest pan Ot the rear body panel. A hole may becui in thetrunk floor

! to install the fuel cell. D. Fire extinguishing spstern of the Freon type with a capacity of

at least 10 lb. and able to extinguish a tire in thedriver'sengine

i and fuel compartments must be installed. 1 11.6.6 Other Modllications

A. Bodwork Except as authorized in these rules, all elements of the body must remain and function as produced by the manufacturer.

1. ACCe~~ories. lights, gauges and switches may be added or removed. The arlglnal instrument panel must be used or a replacement Panel o f the same configuration. The instrument cluster may be modified to accept new gauges. Other interior modifications may be made for the conven- ience and comfort of the driver provided there is no effect on the Car's mechanical performance or appearance. Driver's seat may be replaced. Headliner may be removed.

2. Cables and lines may be replaced. re-routed and protected. 3. Undercoating may be removed. 4. Bumpers must be installed in standard locations, but brack-

ets are free. 5. Glass - Original windshield must be retained. Front door

glass and regulators may be removed. All other glared Surfaces may be replaced with lexan.

6. Fenders may be flared if necessary to cover the wheels and tires for their full width by stretching the original material or by adding a brow of any material. Original wheel arch shape and dimensions must be maintained. No slots, ventsorother modificationswhich anerorconfusetheoriginalappearance are permitted. Inner trant fender panels may bemodified but must enclose the engine comDartrnent comoietelv without . ~ ~-~

gaps or void s p a c e s ~ l l bodyand trim rnouidings installed on the vehicle as it is sold to the public must be retained.

7. Aerodvnamic devices are limited as follows: ~~ ~~ ~ ~ -~

- Front: Approved spoiler as delivered on the model to the public, or a flat. venical front spoiler made of sheet metal may be installed below the loweredgeof th$ front bumper. Front spoiler may be only as wide as the canterline of the front wheel track, and must provide tor a 4w ground Clearance as raced. Spoiler may be vented for brake COOilng ducts.

- Rear: Approved spoiler as delivered on the model to the public, or a flat. vertical, rear spoiler made of sheet metal and measuring no more than4 in height may beattached

50

to the rearmost surface of the trunk ild. Rear spoiler may be only as wide as the trunk lid 01"s or minus 2".

8. A screen may be installed behind the grille to keep foreign objects trom damaging the radiator. Minimum sire ot screen mesh: 118".

9 Thestandardsheelmetal panel between thegrtlleand radla- to1 may be modltled to accommodate larger ,adlator, all Cooler and other ducting.

B. Chassis - Tires - Brakes 1. SUSpenSion springs are free, provided they are of the same

type a8 originally fittedand are installed inthestandard position. Rear spring shackles arefree.Shimsmay beusedtoad- just height 01 front and rear coil springs. Weight jack bolts may be installed, provided thestandard outside appearance Of the frame areas is retained. Only the screw itself may be visible. The only frame modification permitted is reinforce. ment of the spring seat trom underneath tosupponthe jack nut. No coil-over shocks will be permitted. Chrysler models equipped with transverse torsion bar suspension may be converted to longitudinal torsion bar suspension of the type titled in previous Chwsler models.

2. Shock absorbers and their mountings are tree provided they do not pass through the floor of the drivers cornpan- ment.

3. Standard A-arms. radius rods and basic suspension mm- POnentS must be retained but may bestrengthened. Suspen- sion pick-up points may be reinforced and relocated. Bush- ing material is free.

4. Anti-sway bars, torque rods and similar axie-locating devices extra to the basicsuspension may beadded or s u b Stituted, and new or reinforced brackets for them may be installed. Axle locatlng dew ces may not pass through body panels

5 Rtd8 nelghl taken r l t h tne car race-ready, must be m a w tamed eqbal y on rlght and len sides, and must be at feast 6 ' as measured at any point along the underside of the rocker panel.The rear riding height may not bemorethan 1"higher than the front riding height.

6. Heavy duty steel spindlesand hubs, and any wheel beatings may be substituted tor the originals.

7. Wheels - Ail four road wheels must be identical. Steel wheels must be used on all 8-cylinder models. Cast, one-piece alloy wheels may be used on 6-cylinder models. Maximum dimensions of rims: 15 in. diameter, 10 in. width. Track tolerance is permitted to provide tor tire clearance: 3 in, front. 5 in. rear.

51

8 IMSA-approved rac ng tares ul th max mLm section wldlh of 13 3411 fore-cyl nder modelsand11 in for6-cylinder models must be used. Measurement will be taken of new tire mounted on standard rim, off the car, at 30 lb. pressure. Recapped tires may be used only if approved by IMSA.

9. Any standard or readiiy-available brakes may be fitted front and rear.

10. Dual master cyliners are required.

C. Electrical Svstem. 1 Batten/ may be replaced wlth another of votage, sue and

welgnt slmllar to tne arlglnal. and lnslelled n tne stanoard localoon or in the 1,-nk

2. Any makeof lgnitioncoil,condenser,sparkplugs,fuses,wiring, relays, and regulators of orbinal type may be used.

3. Any distributor or electronic ignition system may be used. 4. Alternator must function as originally intended, but may be

replaced with another of different manufacture. 5. The Standard wiring harness may be modified or replaced.

D. Engine and Drive Train IMSA controls engine eligibility tor each approved make and model. All engines and engine components must derive from those produced in volume and readily available through the normal retail sales outlets of the parent manufacturer of the model, and such components must bear the manufacturer's part number. 1. Original and approved optional components of the engine

and drive train may be machined, but no material or mechanical extension may be added.

2. Crankshaft, pistons, rings, wrist pins and connecting rods are free.

3. Camshans, cam followers, pushrods, rocker arms, valves, valve springs, keepers and retainers are free. It is permitted to use threaded or pinned rocker studs, rocker stud girdles, and to O-ring the block for sealing the head gasket.

4. Induction systems for various makes and models will be regulated by IMSA. - 82yl. models shall "seastandard Holley 2 bbl. carburetor

model 2300. list 4412. 500 cfm ratino. No modifications - are permottea to tne denturns. oares, ooosterr or ouner- f l ~ e ~ Alterations are perm tted in let slzos, I "rages. f oats and float mechanisms Emlsslon controls and enoke mechanisms may be modified or removed. A spacer not to exceed one inch in thickness may be used to adapt carburetor to manifold. 6 cyl. models - Carburetor(s) and manifold is free, except that no ram-type air intakes may be used and no modifi-

52

cation of the coachwork tor induction of carburetor air IS permottea No +>el lnlectlon system may be ~ E e d

For 8-cylinder models IMSA-approve0 intake manllola m ~ ~ t be f ned Generally. IMSA w 1appro.esny proouctloninlake manifold which is commercially available to any Competitor and listed in its manufacturer's catalog. No box-typeor tun- nel-ram manifolds will be approved.

6. Fore-cylinder models a round air cleaner with a diameterof at least 12" and no more than 16'W must be fitted directly on the approved carburetor. A standard paper-type airfilter element with a minimum thickness of 1" and a minimum he gnt of 2 mLsl De used A1 alr to the carburetor must De f ltered througn this e ement TOP of the a r c eaner mLst oe solid. and no heat shield or ducts are permitted. Exhaust System is free. Exhaust pipe must extend rearward beyond driverand totheouteredgeof car. Emissiondevices may be removed and any resulting holes plugged. IMSAmay regulate exhaust systems.

. Oil sump and oil pi'ckup may be modified to increase oil capacity and to prevent surge, and dry sump system may be installed. Oil tanks may be mounted securely to the roll cage in the rear of the passenger compartment.

Vents, breathers, oil filters and oil coolers for the engine. transmission and differential may be added or substituted, provided they are mounted within the confines of the body but Outside the driver's compartment. Air may be fed to these oil coolers through ducting which is not visibleexter- "ally. Catch tanks are required to contain any fluids which may leak out on to the race track.

10. A radiator of any sire which will fitthestandard location may be installed and reshrouded if it does not alter the car's appearance. Fan blades may be removed. Fuel pumps are free in type, size and number. The use of a fuel pressure regulator is permitted. Fuel pumps must be located outside the driver compartment.

,L. Clutch is free. 13. Flywheel is free. 14. Any gearbox of up to4forwardspeedsandavailablethrough

the normal retail sales outlets of tho parent manufacturer mav be used.

15 Dr ve matt and ~n versa1 loants are free 16 Rear axle is tree 021 speclfteo track tolerance m.st oemaln-

tained. The following components may be added or replaced with others of any origin: - Nuts, bolts, screws. washers and other such fasteners, in-

eluding safety wiring 53

- e l e c t r i ~ ~ l wiring - gaskets and seals - bearings and bushings - drive belts - pulleys

E. Identification 1. Every car must c a w standard identification plates, medal-

lions and other ornaments. 2. Every car must carry on both right and left rear quarter

Panels the makeand model in leners of at least4" high, legible and in contrastina colors. "

3. Drivers name may be leftend above or beiow drivers window. Maximum height: 3".

4. Car numbers shall becarried on thedoors in black numbers 81 least 1 6 high and on the hood. Numbers'should conrrast with body color. and be of legible proportions. No metallic, mirror-finish or "engine turned numbers will be allowed.

5. All manufacturers decals, emblems, etc.. must be affixed to the sides of the front fenders and not on the doors or rear quarter panels. Advenising on can is subject to I M S m approval.

11.6.7 Approved Makes and Models (2-door. 4door and hatchbacks. unless otherwise noted)

MAKE APPROVED ENGINES AMC

Hornet 232. 258. 304. 360 AMX up 10 7 8 232. 258. 304. 360 Concord 232. 258. 304. 360 Matador Coupe 232, 258, 304, 360 AMC Spirit 232. 256. 304 AMX 7 9 232. 304

BUlCK Skylark 231. 231 Turbo', 260, 267, 301, 350 Regal Coupe 231. 231 Turbo'. 260. 267. 301. 350 Century Coupe 231. 231 Turbo', 260. 267. 301. 350 Skyhawk 231, 260. 267. 305

CHEVROLET Nova 229, 231. 260. 267. 305. 350 Chevelle Coupe 229. 231. 260. 267. 305. 350 Camaro '76t 229. 231. 260. 267. 305 Citation 2.8 V-6 Malibu '78t 229. 231. 260. 267. 205. 350 Manza 229, 231. 260. 267, 305 Monte Carlo 7%+ 229. 231. 260. 267. 305. 350

54

DODGE Aspn 225. 318, 340. 355 (340 with optional crank) Demon Duster 225, 318, 340. 355 Mimda 225, 318. 340. 355

FORD Granada 171. 250. 255. 302, 351. 351 Cleveland Fairmont 171, 250. 255. 302. 351. 351 Cleveland Maverick 171. 250. 255. 302. 351. 351 Cleveland Mustang 79+ 200, 255. 302. 351. 351 Cleveland

LINCOLN MERCURY Monarch -1. 250. 302. 351. 351 Cleveland Zephyr 171. 250. 302. 351. 351 Cleveland Comet 171. 250, 302. 351. 351 Cleveland Capri 200, 255. 302.

OLDSMOBILE Omega CUII~SS coupe Startire

PLYMOUTH Volare

PONTIAC Ventura Phoenix Grand Am 78+ Grand Prix '78r Le Mans '78+ Sunbird Firebird '76+

225. 318. 340. 355 (340 Mth optional crank)

Rated as 350 cu. in. Limited to standard production induction System and manifold. It is Permined to utilize approved alternate heavy-duly cylinder heads of standard design offered by the engine manufacturer through his normal sales outlets and bearing the manufacturer's part number. By standard design is meant the same number and location of valves, ports and spark plugs as the original. Optional cylinder head for the Oidsmobile 350 cu. in. engine. part no. 22501232, is approved for use.

OfflClal welpm 10 IbS. per cubic inch with a minimum of 2500 lbs. Engine displacement must be lettered on hood and cars must weigh accordingly.

55

12. STANDING SUPPLEMENTARY REGULATIONS IMSA hasestablirhed these uniform Standing Supplementary Ranll-

lations under which events in its various series are held and its champions are determined.

IMSA is the sole authority for the awarding of all IMSA series, pionship points, the naming of IMSA series driver and manufa champions and the distribution of any IMSA series point funds in the manner set forth in these Standing Supplementary Regulations.

Notwithstanding that a particular IMSA series competition may be listed on the FIA calendar or be part of an event counting towards an FIA championship, IMSA reserves a l e authority to settle finally any dispute which might arise during an IMSA series competition. insofar as the dispute would awed any of the above-mentioneddeter- minations, by naming a final court of appeal in accordance with Article 10 of the IMSA CODE.

121 Camel GT Series The Camel GT Series is an annual calendar of races which

determines driver and manufacturer champions. the distribution of point funds and other awards.

12.1.1 Duratlm Camel GT Series races will have a minimum scheduled duration of

75 miles. Races may be divided into heats.

12.1.2 Car Ellglbllily IMSA GT Category caroas defined in Article1 1.4of thelMSACODE

and amendments thereto. 12.1.3 Drlver Champlons

Driver champions will be recognized in the combined GTXIAAGTI GTP division, the GT division over 2.5 liters andtheGTdivision under 2.5 liters in the Camel GT Series. These championships wiil be determined by the relative paint standings of drive mat the closeofthe season. counllng all races rLn

Champ onshop polnts wl beawaroeo in each Camel GT Serles race 10 the too ten flnlshers in eaCn 0 ria on on a 20-15-12-1086-4-3-2-1 basis. A driver may earn points only in theonedivision inwhich hiscar i6 ComDetina. . -

In aoont on, one champlonlhlp po nt will oe awarded to tnefaslest q~alol~er in eacn dl*lsvan ineacnSerlesrace Tnefnstertq~allf sr osdk fined as the driver of (he car recording the fastest lap time during an official qualifying session. Performances in heat races wiil have noel- feet an the awarding of these points.

Adriver may drive only one car duringarace.unlessSupplementary Reg~lations specify otherwise. Driverlcar assignments must be declared prior to the actual start of the race.

The Supplementary Regulations may also provide for full or partial

point awards in heat r a m . In order for a driver to be eligible for points, h the fol-

lowing requirements: I. RACES OVER 225 MILES

As specified in the SR, or: A. His car murt complete at leasl70n of the distance Completed

by the winning car in his division. 8. He murt drive at least one-third of the distance or time of the

race. Ii. ALL OTHER RACES

AS Specified in the SR. o r A. His car must complete at least 90% of the distancecompleted

by the winning ear in his division. 0. He must drive at least one-half of the distance or time of the

race. Should two drivers each complete exactly one-half the number of laps of the race, only the starting driver will be swarded points.

Distance is normally measured in lapswithcreditforthe lapgoing to thedriver who crosses the scoring lineinthecar: however, in racesofa set time, IMSA may determine distance by length of time in the car during the race.

IMSA's decision concerning any question or dispute about point awards will be final.

In case of a tie in the final point standings, the tie shall be resolved according to the record of first place finishes: then, if necessary, the number of second place finishes, and so on down to tenth place finishes. If a tie still remains, the tie shall stand and awards will be shared equally. 12.1.4 Manufacturer Champlons

IMSA wiil recognize Camel GT manufacturer champions in each of three divisions:

GT Under 2.5 Liters GT Over 2.5 Liters Combined Experimental GT (GTX). All-American GTQ (AAGT), and GT Prototype (GTP)

Manufacturer points will be awarded on a 20-15-12-10-864-3-2-1 basis in each division. A given make will receive points for its highest finishing position only in each Series race. In case of a tie in the final point standings, it will be resolved i? the manner outlined in Article 12.13 above.

12.1.5 Camel GT Polnl Fund A point fund of $125,OW has been posted by the R. J. Reynolds

Tobacco Company and will be paid out to the top ten drivers in each division at the completion of the 1983 Camel GTschedule, asfollows:

GT Division - Combined GTX, GTP, AAGT - $75,000:

1. $25,000; 2. $15,000; 3. S10.OW: 4. $5.WO; 5. $4,500: 6.34.000; 7.$3.500; 8.S3.250; 9.$2,500; 10.$2.250

GTO and GTU Divisions - 825.m each: I. SlO.Oo0: 2. $5,000: 3. S2.5W: 4. $1.875; 5. $1,250; 6. $ 1.125: 7. $I.OW: 8. $ 675: 9. $ 750; 10. $ 625

12.1.8 Aduertlslna . - To be elngoole lor polnl awards. competitors are reqL re0 lo orsplay

the off cra CAMEL GT Serles decal Lnaltereo n a slandara ocat on on each s de of lhelr cars and me ofllclal CAMEL GT Serler pdtcn an the breast area of their driving uniforms. A clear space measuring 20 inches by 24 inches must be reserved forthe official Camel GTSeries decal, the IMSA GTdecal andthecarnumber, asshown inthediagram on page63,Thisrpaceshould beonthedoorsunlasstheconfiguration of the car is such that the number and decals will be more legible in another Dlace.

All advertls ng fs s.bect to IMSA approval Advcrtosing of any tobacco prod-ct otner tnan Came s sna I not erceea 32square Inches per side of the vehicle.

Drivers are also required to sign the standard release on theirentry farms permitting the Series sponsor to use their names and pictures and phetos of their racing cars for Series advertising and promotion purposes.

12.2 CHAMPION SPARK PLUG CHALLENGE SERIES TneChamp anspark Plug ChallengeSerles sacalendarof racesfor

cars using IMSA approved radial street tires. This series determines a Driver Champion, a Manufacturer Cham-

pion, and the distribution of the Series Point Fund.

12.2.1 Duntlon Champion Spah Plug Challenge Series races will vary in duration.

Races may be rcheduled in heats.

1222 Car Eltglbtllly Per paragraph 11.5 of the iMSA Code and amendments thereto.

12.2.3 Ddnr Champlon IMSA Will recognizeadriver champion intheSeries.Thischampian-

lhip will be based on the relative pointstandingsotcompetitorsatthe ;lose of the Series.

Championship points will be awarded in eachseries racetothetop len finishers on a 20-15-12-10-8-6-43-2-1 basis.

In addition, one championship point will be awarded tothe fasten qualifier in each Series race. The fastest qualifier is defined as the driver of the car recording the fastest lap time during an official qualitying session. Performances in heat races will have no effect on the awardino of these oaints.

Aorlrer may dr ve only onecar dur~ngaraea.uniersS~pplementary Regulat~ons speclly olherw~se Drnver/car sssognments mast oe

- . - mplete at lea: car. 11 least onett

declared prior to the actual start of the race. The Supplementaty Regulations may also provide for full or partial

point awards in heat race In order for a driver to I for points, he must meet the fol-

lowing requirements: I. RACES OVER 225 M As Specified in the SI A. His CBT must co st 70% 01 the distance completed

by the winning 0. He must drive r i ird of the distance or timeof the

race. II. ALL OTHER RACES

AS specified in the SR, or: A. His car must complete at least 90% of the distancecompleted

by the winning car. 0. He must drive at least one-half of the distance or time of the

race. Should two drivers each complete exactly onehall the number of laps of the race, only the starting driver will be awarded points.

Distance is normally measured in l a w with creditforthe lapgoing to the driverwho crossesthe scoring lineinthecar; however, in racesofa set time, IMSA may determine distance by length of time in the car during the race.

1MSA.s decision concerning any question or dispute about point awards will be final.

In case of atie in the final Point standings, the tie ahall be resolved according to the record of lim place finishes: then, If necessary, the number of second place finishes, and so on down to tenth place linishes. If a tie still remains, the tie shall stand and awards will be shared equally.

12.24 Manutadurer Charnplon IMSA will recognize a manufacturer champion in the Series. This

championship will be based on the reiativepointstandingsofmakesat the close of the Seriee~ ~ ~ ~~~ ~ ~ -~ -.~

Championship points will be awarded ona20-15-12-10-8643-2-1 basis in each race. A given make will receive points for its highest finishing position only in each Series race.

In Caseofatie in thsflnal pointstandings,thetieshatl bennolvedas Outlined in Paragraph 12.2.3.

12.25 Polnt Fund The Champion Spark Plug Challenge Series driver point fund of

S40.W will be distributed atthecloseoftheseason bythechampion Spark Plug Co. to thetopfineendrivers inthefinal paintstandings, as

foliows: I - $lO,OW 6 - $2,000 11 - $1.400 2 - 6.0W 7 - 1.800 12 - 1.300 3 - 4,OW 8 - 1.7W 13 - 1,200 4 - 3.000 9- 1,600 14 - 1,100 5 - 2.400 t 0 - 1.500 15 - 1.000

12.2.6 Advertising TO be eligible for prize money and point awards, competitors are

required to display official Champion Spark Plug Challenge Series decals on their car doors in prescribed locations, official Series windshield tint on thewindshield, and official Series patch on thechest of their driver unlformr. No other advertising may be carried on the doors.

If an official tire should be prescribed for the Series. theofficial tire decal shall be canied in a standard location above the rear wheel openings and on the front bumper or spoiler.

All advertising issubjectto iMSA approval. Advertising of any brand of spark plug other than Champion shall not exceed 32 square inches per side of the vehicle.

Drivers are also required to sign the usual releaseon their entry form permitting IMSA and event or Series sponsors to usetheir namesand pictures and photos of their racing cars for advertising and promotion purposes.

12.3 Kelly A m n i u n Challenge S r l n The Kelly American Challenge Series is a calendar of races for

volume-produced American sedans recognized and prepared according to Article 11.6. The Series determines a championship tor driven and manufacturers and other awards, and recognizes the top women drivers in the Series.

12.3.1 Duntlon Kelly American Challenge Series races may vary in duration. Races

may be scheduled in heats.

12.32 Car Eliplblllly Per Article 11.6 of the IMSA CODE and amendments thereto.

12.3.3 Dr tnr Champion IMSA will recognize a driver champion and the highert-placed

woman driver in the Series, based on the relative point standings of competitors after the final Series race annually.

Championship points will be awarded ineachseries racetothetop ten finishers on a 20-15-12-1044-44-2-1 basis. in addition, one championship point will be awarded to the driver of thecar recording the fastest lap time during an official qualifying session.

A driver may drive only one car during a Series race unless the Supplementary Regulations provide otherwise. Driverlcar assign-

M)

ments must be declared prior to the actual start. The Supplementary Regulations may also provide for full or partial point awards in heat races.

TO be eligible for points, these requirements must be met: 1) Races 225 miles or longer:

As specified in the Supplementary Regdations. or: a) Driver must complete at least 70% of the distance (in whole

laps) covered I b) Driver must d r ~ nance or time of the

race. 2) Races less than 2

As specifid in thr ~upp~~rssur~nary n.rurrrn#ons, or: a) Driver must complete at least% of the distancecovered by

the winner and

by the winnet ive at least on

', and e-third the di!

25 miles: --A-

~. b) Driver must drive st least onbhalf the distance or time of the

race. In case both drivers complete exactly one-half the number of laps, only the starting driverwill be awarded points in this case.

IMSA reserves final authority to senleany question or dispute about point awards.

In care of a tie in the final Series point standings, the tie shall be resolved according l o the relative numberoffirstplaiefinishes:then, if necessary. the number of second place finishes, ete.. down to tenth place finishes. If a tie still remains, it shall stand and awards wiil be shared equally.

12.3.4 Manufacturer Champion IMSA wiil recognizes manufacturerchampion intheKelly American

ChallengeSsries, based on the relativepaintstandingsof makesatthe close ofihe Sene*. Points will beawarded ana20-15112-10-8-M-3-2- 1 basisineach race.Agivenmakewil1 receivepointsonly foritshighest finishing position in each race. Ties will be resolved per Art. 12.33,

12.3.5 Paint Fund The Kelly American Challenge Series Point Fund of $60,000 will be

distributed at the close of thesearon by theseriessponror as follows: Cnampion - S12,OW 6 - $3.OW I 1 - $1.400

2 - 8.5W 7 - 2,5W 12 - 1,200 3 - 5.500 8 - 2,OW 13 - 1,tW

B o n u m for Women D r h s n - $10.000 Champion - $5,OW

2 - 3,000 3 - 2,OW

-~ ~ ~ ~~~ ~ ~ ~ . . TO be eligible for prize money and point awards, competitors are

required to display official Kelly American Challenge Series decals On their car doors in prescribed locations, official Series windshield tint on the windshield and official Series patch on the chest oftheir driver uniforms. No other advertising may be carried on the doors.

All advertising is subject to IMSA approval. Drivers are also required to sign the usual release on entry farms

permitting IMSA and sponsorsof events and series10 use their names and photos for advertising and promotion purposes.

KELLY AMERICAN CHALLENGE

CUAMPION SPARK PLUG CHILLENCE

13. APPENDIX EOUIVUENCE FORYUIAS

1 inch = 2.54 cm. = 25.4 mm. 1 cubic inch = 16.387 cubic cm. 1 millimeter = ,03937 inch 1 meter = 1.0836 yards 1 kilomeler = lWO melem = ,82137 mile = 1083.6 yards 1 mile = 1.760 yards = 1.60834 kilometem Miles per hour = kilomemm-per-hour times ,82137 Kilometem per hour = miles per hour tinma 1.608M I cubic centimeter = ,061 CUMC inch 1 liter = 61.03 cubic inches = 1WO oubc oentimeten (00.)

1 kilogram = 2.21 pounds 1 pound = 453.6 grams 1 hundred-weight (cwt.) = 112 pounds (British). 1M) Ibs. (

Note: I f a British car is said to weigh 25 M.. ils weight* times 112 or 28M) Ibs.

1 U.S. gallon = 231.18 cu. in. = 3.785 liten 6 U.S. gallons = 5 imperial (British) gallons 1 mile per hour = 1.467 feet per m o n d

Cylinder volume (displacement) = 3.1416 x bore x barex 4

Engine displacement = Cylinder volume times number of

Weight of gasoline = 6.2 lbs./galion

OF THE INTERNATIONAL MOTOR SPORTS ASSOCIATION, Inc. · 2010-05-17 · sanctioned race events. 3.4...

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Transcript of OF THE INTERNATIONAL MOTOR SPORTS ASSOCIATION, Inc. · 2010-05-17 · sanctioned race events. 3.4...