PURESTREET
CLASSOVERVIEW
PureStreetisdesignedfornaturallyaspiratedsmallblock1954andnewerFordbodied
vehicles.PureStreetentriesarelimitedto302,2V/3V/4V4.6Land5.0CModularenginetypes.
5.0Lenginesarepermittedamaximumof313cubicinches.4.6Lenginesarepermitteda
maximumof291cubicinches.5.0Carepermittedamaximumof304cubicinches.
Note: Thissetofclassrulesispresentedtoallcompetitorsundertheassumptionthatany
modificationsnotspecificallywrittenwithintheserulesshallbedeemedillegal,unlessthe
competitorhastheexpressedwrittenconsentfromtheNMRATechDirector.
RACINGFORMAT
Thisclasswillbeanallrunheads-upfield,NHRAProLadderona.400ProTree.
ENGINEBASECIDBASEWEIGHT
4.6L2V2892650
4.6L3V2892750
4.6L4V2892975
5.0LHO3112800
5.0C 302 3200
Note:Allweightsarewithdriverandroundeddowntothenearestfivepoundincrement.A
10lbperCIDweightpenaltywillbeassessedtoallenginecombinationsovertherebaseCID.
WEIGHTADDITIONS/DEDUCTIONS
4VentriesusingaSullivanmanifoldmustadd25lbstotheiroriginalbaseweight.
Entriesusingamanualtransmissionmustadd75lbstotheiroriginalbaseweight.
Allentriesexceptfor5.0CusingOEMFordelectronicfuelinjectionmaydeduct50lbsfromtheir
originalbaseweight.
EntriesusingFordOEM4.62Vcylinderheadsmaydeduct100lbsfromtheiroriginalbase
weight.
REQUIREMENTS&SPECIFICATIONS
ENGINE:1
ENGINE/BLOCK
Enginesarelimitedto5.0LHO,5.0LCoyote,4.6LModularcombinations.AnycastironFord
type302Worcastironorcastaluminum4.6basedengineblockrequired.Billetblocks
prohibited.BlockmustmaintainFordOEMborespacing,deckheights,andcrankshaftspacing
forenginetypeused.Deckspacers(extensions)prohibited.O-ringingofengineblockis
permitted.Lifterboresbushingsarepermitted.
HARMONICBALANCER
FordOEMoraftermarketharmonicbalancerispermitted.
ENGINEMOUNTS&LOCATION
Enginelocationmaybealteredfromstock;howevernopartofengineorheadsmaycontact
firewall.Engineplatesprohibited.Solidenginemountspermitted.
ENGINECOATINGS
Visiblecoatingsarepermittedwherelubricantsarepresent.Visiblepistoncoatingabovethe
topringispermitted.Visiblecoatingofcylinderheadrunners,combustionschambers,and/or
intakemanifoldrunners/plenumsprohibited.Visiblecoatingofanyexternalsurfaceofcylinder
headorintakemanifoldprohibited,including,butnotlimitedtorunnersand/orplenums.
CRANKSHAFT
Stockoraftermarketcastironorsteelcrankshaftrequired.Compositeand/ormulti-piece
crankshaftsprohibited.Stock3.0-inchstroke,+/-.010-inch,mandatoryfor302Wapplications.
Stock3.543-inchstroke,+/-.010-inch,mandatoryfor4.6L2V/3V/4Vapplications.Stock3.653inchstroke+/-.010-inch,mandatoryfor5.0Capplications.Minimumrodbearingshaftdiameter
is2.000-inch.Modificationstocrankshaftpermitted.
CONNECTINGRODS
Stockoraftermarketsteelconnectingrodsrequired.Compositeconnectingrodsprohibited.
302Wconnectingrodsmustbe5.09-inch,+/-.025-inch,center-to-centerlength.4.6L&5.0C
connectingrodsmustbe5.933-inch,+/-.025”,center-to-centerlength.Connectingrodsmaybe
ofanydesign.Connectingrodsmaybefreefloatingorpressfit.
PISTONS,PINS&RINGS
Stockoraftermarketpistonpermitted.Pistonsfor5.0L,4.63-valve&4-valve,&5.0Cmustbe
flattopordishdesign.Pistonsfor4.6L2-valveheadcombinationsmaybedome-typedesign.
Theuseof3ringsrequired.Gasportingispermitted.Wristpinsfor302Wbasedapplications
mustbeaminimumof.912-inchdiameter.Wristpinsfor4.6L&5.0Capplicationsmustbea
minimumof.866-inchdiameter.Valvereliefsareoptional.
TIMINGCHAIN
FordOEMoraftermarketstockreplacementtimingchain/chainsarerequiredonallengine
combinations.
CAMSHAFT
Eachenginecombinationmustcompetewiththefollowingcamshaftspecs:
5.0LHO:Hydraulicrollercamshaftwithanydurationandlobeseparationispermitted.
Maximumvalveliftattheretaineris.500.
5.0LCOYOTE:Hydraulicrollercamshaftwithanydurationandlobeseparationispermitted.
Maximumvalveliftattheretaineris.480.
4.6L2V:Hydraulicrollercamshaftwithanydurationandlobeseparationispermitted.
Maximumvalveliftattheretaineris.550.
4.6L3V:Hydraulicrollercamshaftwithanydurationandlobeseparationispermitted.
Maximumvalveliftattheretaineris.480.
4.6L4V:Hydraulicrollercamshaftwithanydurationandlobeseparationispermitted.
Maximumvalveliftattheretaineris.480.
Valveliftwillbecheckedatretainerwithrocker(&pushrod)in“asrun’’conditionusinga
blockedupOEMFordhydraulicrollerliftersetatzerolash.Lobeliftwillbemeasuredatthe
hydraulicrollerlifter.
LIFTERS/LASHADJUSTERS
Anyaftermarkethydraulicrollerlifter/lashadjusterpermitted.Lifer/lashadjustermust
maintaintheFordOEMoriginaldiameter.
PUSHRODS
Anyaftermarketsteelpushrodsarepermitted.
ROCKERARMS
Anyaftermarketrockerarmsarepermitted.
VALVESPRINGS&RETAINERS/LOCKS
Anyvalvespringsandretainers/locksarepermitted.
CYLINDERHEADS
Onlycommerciallyavailablecastaluminumorcastiron,cylinderheadspermitted.Billet,oneoff,customand/orfabricatedheadsprohibited.Cylinderheadmustbesinglesparkplugper
cylinderdesign.SparkplugsmustretainitsFordOEMlocation.Cylinderheadsmustmaintain
FordOEMnumberofheadboltsandtheirlocation.Portingispermitted.Epoxy/weldingorany
otherfabricationworkisprohibited.Theuseofpushrodsleevesisprohibited.Anglemillingof
cylinderheadsispermitted.AllcylinderheadsmustmaintainFordOEMvalveangleof+/-2
degrees.Theuseofintakeportplatesisprohibited.Exhaustportplatesarepermittedwitha
.500inchmaximumthickness.
Maximumvalvesizesfor302Wheadsare2.025-inchIntake/1.605-inchExhaust.Maximum
valvesizesfor4.6Ltwovalveheadsare1.850-inchIntake/1.452-inchExhaust.Maximumvalve
sizesfor4.6Lthree-valveheadsare1.368-inchintakeand1.514-inchexhaust.Maximumvalve
sizesfor4.6Lfourvalveheadsare1.487-inchIntake/1.211-inchExhaust.Maximumvalvesizes
for5.0Cheadsare1.469-inchIntake/1.252-inchExhaust.Valvestemsizeinguideareamustbe
11/32-inchfor302Wheads,Valvestemsizeinguideareamustbe0.274-inchfor4.6Lheads,
andValvestemsizeinguideareamustbe0.511-inchfor5.0Cheads.Undercutstems
permitted.Aftermarketsteelvalvepermitted,titanium/exoticvalvesprohibited.Bronzelined
orreplacementguidespermitted.Anyvalvejobispermitted.
Thefollowingcylinderheadsarenotrestrictedoncombustionchambervolume:FordOEMcast
iron289,302,351,FRPPGT-40,&GT-40Pheads.Minimumcombustionchambervolumeforall
other302Wheadsis58.0cc’s.Minimumcombustionchambervolumefor5.0Cheadsis52.0
cc’s.Minimumcombustionchambervolumefor2V/3V/4V4.6Lheadsis42.0cc’s.
ApprovedCylinderHeadList:
Belowistheapprovedcylinderheadlistforthiscategory.Ifacylinderheadisnotonthislist,it
isprohibited.
• StockFordOEM289/302/5.0and4.6L2VCylinderHeads.++
• StockFordOEM5.0CCylinderHeads
• FordGT-40andGT-40PCastIronCylinderHeads++
• FRPPGT-40AluminumCylinderHeads,PN#M6049X303&Y303
• FRPP/SVO4.62VCylinderHeads
• FRPP/SVO4.6L4-ValveCylinderHead,M6049T46
• FRPP3VPN#M-6049-463PandM-6050-463P
• EdelbrockPerformer&PerformerRPMHeads,PN#60329,60359,60279,60229,60259,
60269
• TrickFlowTwistedWedge5.0(nonR)PN#51400010**
• TrickFlowTwistedWedge5.0PN#51400010-C01(185ccCNC)**
• TrickFlow2VPN#51910001-M38&51910002-M44(seesection1.17i)
• BrodixST5.0&5.0RAluminumCylinderHeads,PN#ST5.0&ST5.0R
• Holley5.0AluminumCylinderHeads,PN#300-573,574,575,576,577,578,579
• WorldProductsRoush180&WindsorJr,PN#53030,23030
• AirFlowResearch165,PN#1398,1399,1400,1402,1472
• AirFlowResearch185,P/N#1387,1388,1389,1406,1381,1383,1426,1428
• DartPro1170ccAs-CastCylinderHeads,PN#13100080,13111181,13111182
• Canfield170ccStreet#18-350
• RHS180cc(Iron&Aluminum)
**Theseheadspermittedwitha50lb.weightaddertobaseweight
++Thesecylinderheadspermitteda100lb.weightdeductionfrombaseweight.
Note:StockfactoryOEMheadsarethosecylinderheadsthatarefactoryproductionline
installedonproductionvehiclesasrecognizedbyNHRA.
INTAKEMANIFOLD
OnlyNMRAaccepted,commerciallyavailable,mass-producedintakemanifoldspermitted.Any
heightspacerpermittedbetweenEFIupperandlowerintakesonly.Allrunnersmustbe
completelyseparatedfromeachotherrunner.Spacerorgasketmustnotcreatea'plenum',or
anyothermeansforairtopassbetweenrunners.Carbspacerspermitted.Maximum1.200-inch
totalthickness,includingsandwichedgaskets.Maximumofonegasket(max.thickness0.125inch)betweenanymatingsurfaces.4.6L4V&3Vcombinationsmayremovesecondaryrunner
controls.Only4.6L2Venginesmayuseaftermarketas-castthrottle-bodytointakemanifold
plenums.
PortingispermittedforEFIupper&lowerintakemanifolds.UpperEFImanifoldmaybeported,
butmaynotbecut,modifiedorwelded.Runnersmaynotbeshortened.Carburetedintakes
maybeportedonly1”intorunners(fromintakemountingface);otherwise,porting/machining
isprohibitedoncarburetedintakes.Epoxy,weldingoranyotherfabricationworkisprohibited.
Carburetedintakemanifoldsarepermittedtobeconvertedovertoelectronicfuelinjection.
Theonlyweldingpermittedisforthefuelinjectorbungsandfuelrailtabsandmustbe
approvedbytheNMRATechDirector.
ApprovedIntakeManifoldList
Belowistheapprovedintakemanifoldlistforthiscategory.Ifanintakemanifoldisnotonthis
list,itisprohibited.
• OEMFord5.0L,&4.6Intakes–Upper&Lower
• OEMFord5.0CBoss&CobraJet++
• FRPPGT-40Upper&Lower,PN#M6001A50
• FRPPM-9224-R50
• EdelbrockPerformer–Upper&Lower,PN#3821
• EdelbrockPerformerRPM–Upper&Lower,PN#7126
• EdelbrockPerformerRPMII–Upper&Lower,PN#7123
• EdelbrockVictorJr.4.62VPN#28385
• EdelbrockVictorJr.4.62VPN#2838
• EdelbrockVictorJr.5.0LPN#2921**
• C&L4.63VPN#720
• TrickFlowRSeries(non-box)5.0LPN#51511003,51500003
• TrickFlowBoxRSeries5.0LPN#51500008,51511008**
• TrickFlowStreetHeat–Upper&Lower,PN#51500001
• TrickFlowTrackHeat–Upper&Lower,PN#51500002
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
TrickFlowmodular2Valveintakemanifold.(TFS-51800002,TFS-518B0002,TFS51811002)
FRPP4.62VHi-FlowIntake–Package,PN#M9424E46
HolleySysteMax–Upper&Lower,PN#300-72
Saleen/Vortech–Upper&Lower
EdelbrockPerformer**(carbonly)–PN#3721
EdelbrockPerformerRPM**(carbonly)–PN#7521,7121
EdelbrockPerformerRPMAirGap**(carbonly)
WeiandStealth**(carbonly)–PN#8011,8311,8020
FordM-9424-T46
ReichardRacing4.6L2Vsheetmetalintakemanifold
FoxLakePowerProductsP51IntakeManifold
BBKIntakeManifoldPN#5001
SullivanModular4.6L4VintakePN#1-101A&1-101B(Throttlebodyadaptoralso
permitted)
ProfessionalProducts4.6L2VTyphoonintake
LoganMotorsports4.6L2Vsheetmetalintakemanifold
**Theseintakesmayonlybeported1”intotheintakemanifoldportsonthecylinderheadside
(fromintakemountingsurface).Porting/machininganywhereelseisprohibited.
++TheseintakesaretheonlyPermittedIntakeManifoldsforthe5.0CEngine.
OILINGSYSTEM
FordOEMfactorywetsumpoilsystemisrequiredforallentries.Allexternaloilpumps,vacuum
pumpsand/orcrankcaseventilationsystemsareprohibited.Anyoilpanispermitted.Allentries
arepermittedtheuseofwindagetrays,crankscrapers,etc.
COOLINGSYSTEM
Entirecoolingsystemmustbecontainedwithintheenginecompartment.FordOEM
production-styleoraftermarketradiatorisrequiredandmustbemountedinstocklocation.
Stockcoresupportisrequired.Anyaftermarketwaterpumps(beltdriveorelectricdrive)are
permitted.Anycoolingfansarepermitted.
ACCESORYBELTDRIVESYSTEM
Alternatorisnotrequired.
EXHAUSTSYSTEM
Allentriesarepermittedtousetubularheaderswithamaximumoutsidediameterprimary
tubesizeof1.75inches.Completeexhaustsystemwithtwomufflersisrequired.Maximum
exhausttubingdiameteris3inchesandmustexitwithin12inchesoftherearaxlecenterline.
FUELSYSTEM
Electricormechanicalfuelpumpspermitted.Pressureregulatorsandanylinesizepermitted.
Allfuellinesmustoriginateandreturntoasingle,non-segmented,fuelcellorOEMfueltank.
Fuelpumpmustshutoffwithamasterelectricalswitch.Anymethodofartificiallyheatingor
coolingfuelprohibited(coolcans,ice,wetrags,Freon,etc.).Avalveforremovaloffuel
(gasoline)duringtechnicalinspectionsismandatory.Valvemustbeinstalledbetween
carburetor/injectionandregulator,andshouldbeinstalledinsuchamannerthatallowsacup
tobeplacedtocatchfuelremovedfromtheline.Exitofvalveshouldbecappedorpluggedin
additiontobeingclosedforaddedsafety.
Aftermarket/fabricatedfueltankorcellpermittedandmustbelocatedintrunkarea.Iftankor
fuelfillerisinsidetrunk,abulkheadofminimum.032”aluminumor.024”steelmustbeused
betweentrunkanddrivercompartment,andtankmustbeventedtooutsideofcar.When
used,fuelcellsmusthaveametalboxprotectingthepartofthefuelcellthatisoutsidethe
trunkfloor.Non-metallicfuelcellsortanksmustbegroundedtoframe.
EFISYSTEM
AFTERMARKETEFI:5.0CEnginesarerequiredtouseCopperheadenginecontrolcomputer
system.AnyaftermarketEFIsystempermittedon5.0L,&4.6LEngines.
OEMFORD:OEMFordEEC-IVorEEC-Venginecontrolcomputersystemrequired.NMRA
accepted“plug-in”chipsandEECcomputer“add-ons”permitted.FordEEC-IVorFordEEC-V
Speeddensitypermittedforallcombinations.OEMenginecontrolcomputermustbe
functional.Commerciallyavailable,complete,massproducedmassairsensorsrequiredonall
combinations(sampletubeandelementsrequired),includingspeeddensityequipped.Massair
sensorisnotrequiredtofunction.Massairsensormustbestandarddrawthroughdesignand
haveamaximumsizeof80mmor3.150inches.Anysize/typefuelinjectorpermitted.
Maximumof8fuelinjectorslocatedinstocklocation.
ApprovedComputerAdd-OnList
Belowistheapprovedcomputeradd-onlistforthiscategory.Ifacomputeradd-onisnoton
thislist,itisprohibited.
1) FRPPExtender&FRPPEPEC
2) AndersonFordPMS
3) AutologicPlug-inEECChip
4) SuperchipsPlug-inEECChip
5) HyperchipPlug-inEECChip
6) DiabloPlug-inEECChip
7) EECTuner
8) SCTXcalibratorSeries
9) DiabloSportPredator
10) DiabloSportTrinity
11) HPTuners
THROTTLEBODY
Onlymassproduced,commerciallyavailablethrottlebodiesarepermitted.Singlethrottlebody
isrequired.AllenginecombinationsmayuseanOEMstyle,aftermarket,commercially
available,bolt-onthrottlebody.EGRspacerisnotrequired.
CARBURETOR
Limitedtooneautomotivetype750cfmcarburetorwithanymodificationspermitted.Split
carburetorprohibited.Carburetorrestrictedtoamaximumthrottleboresizeof1.690inches,
maximumventurisizeis1.400inches.Standard-styleboostersarerequired(noaerosol,
annular,etc).Carburetorisnotpermittedon5.0CEngines.
AIRFILTER/CLEANER
Anyaftermarketstreetlegalautomotivetypeairfilter/cleanerispermitted.Allincomingair
mustpassthroughanairfilter.
THROTTLELINKAGE
Throttlecontrolmustbeoperatedbythedriver’sfoot.
FUEL
Entrieswillbesubjectedtorandomcheckstoverifylegalityoffuelbeingused.Failuretopass
fuelcheckwillresultindisallowanceofarunduringqualifyingorbeingdisqualifiedduring
eliminations.
ApprovedVPRacingFuelList
• C10UL:Colorless
• C12:Green
• C14:Yellow
• C14+:Clear
• C16:Blue
DRIVETRAIN:2
CLUTCH,FLWHEEL&FLYWHEELSHIELD
ClutchandflywheelmeetingSFISpec1.1or1.2withanysinglediscdiaphragmtypeclutch
allowed.SteelflywheelshieldmeetingSFISpec6.1ismandatory.Flywheelshieldcannotbe
modifiedforclutchadjustmentand/orcoolingholes.
MANUALTRANSMISSION
FordOEMoraftermarketOEM-styletransmissionsallowed(O.D.notrequired)andreversemay
beused.Maximumforwardgearsarefour.Allgearchangesmustresultdirectlyfromthe
driver’sfoot.Pneumatic,hydraulic,electric,etc.shiftersareprohibited.Floor-shiftconversion
kitsarepermitted.Aftermarketshiftersarepermitted.Allmanualtransmissionshiftersmust
maintainanH-pattern.Clutchlesstransmissionsareprohibited.Clutchmustbeusedtochange
gearsinaconventionalmanner.
PermittedManualTransmissions
• TremecT5(a)-3.35,1.99,1.33,1.00
• TremecT5(b)-2.95,1.94,1.34,1.00
• TremecT45-3.37,1.99,1.33,1.00
• TremecT56(a)-2.66,1.78,1.30,1.00
• TremecT56(b)-2.97,2.07,1.43,1.00
• TremecTR3550-3.27,1.98,1.34,1.00
• TremecTR3650-3.38,2.00,1.32,1.00
• TremecTKO/TKOII-3.27,1.98,1.34,1.00
• T5w/G-ForcePN#5000DogRing-2.92,1.99,1.34,1.00
• T5w/G-ForcePN#5000Syncro-2.94,1.94,1.34,1.00
• TremecTR3550/TKO/TKOIIw/LibertyGearPN#LG3500-2.92,1.95,1.34,1.00
• TremecTKO-500-3.27,1.97,1.34,1.00
• TremecTKO-600-2.87,1.89,1.28,1.00
• T5w/G-ForcePN#5000DogRing–3.22,1.99,1.34,1.00
• G-Force–G101A,GF4A
• Jerico–DR4
• Liberty–LCS50004-Speed
• AndrewsTransmission–A431H-Pattern4-speed
AUTOMATICTRANSMISSION
Anymassedproduced/commerciallyavailableFordOEMautomatictransmissionallowed.
AftermarketcasemustmeetSFISpec4.1and30.1.Modificationstoshiftingpatternare
permittedprovidedfullshiftpatternisretained.Anytorqueconvertorincludinglockupstyles
ispermitted.Functionalneutralsafetyswitchisrequired.Theuseoftrans-brakesispermitted.
DRIVELINE
Anysteeloraluminumdriveshaftispermitted.Carbonfiberdriveshaftisprohibited.
REAREND
Anyautomotivetyperearendispermitted.
BRAKES,STERRING&SUSPENSION:3
BRAKES
Frontandrearhydraulicbrakesarerequired.Automatedbrakesareprohibited.Theapplication
andreleaseofthebrakesmustbeafunctionofthedriver.Dualreservoirmastercylinderis
required.Line-lockispermittedonlyonthefrontwheelsusingoneline-lockbuttonand
solenoid.Anyotherelectrical,pneumatic,hydraulic,etc.switchinbrakingsystemisprohibited.
STEERING
AnyFordOEMautomotiveproductiontypesteeringsystempermitted.
SHOCKS/STRUTS
Stockreplacementtypeshocksintherearandstrutsinthefrontarerequired.Coil-overstruts
arepermitted.Shock/strutmustmountinstocklocation.Shocks/strutsmustbestand-alone
andcannotbeadjustableduringarun.Rearcoilovershocksareprohibited.Electronic
programmableshocks/strutsareprohibited.Spindlemounttypestrutsareprohibited.
FRONTSUSPENSION
Stock,aftermarketortubulartypeK-memberpermitted.K-membermustmountinitsoriginal
location.K-membermaybenotchedforoilpanclearance.Factorystrut/shocktowersare
required.Bolt-ontypecaster/camberplatesarepermitted.Factoryoraftermarketcontrols
armsarepermitted.
REARSUSPENSION
Stock-typerearsuspensionisrequiredforyearofvehiclebeingused.Ladderbarsuspension
systemsareprohibited.Aftermarketdirectbolt-insuspensioncomponentsarepermitted.Ford
OEM3and4-linkstylerearsuspensionsystemsmustretainfactoryanglesandattachment
pointslocatedonthebody.Factoryattachmentpointsontherearaxleareallowedtobe
relocated.Aftermarketswaybarsarepermitted.
WHEELIEBARS
Theuseofwheeliebarsisprohibited.
FRAME:4
FRAME
Frontandrearframerailsmustremainunalteredandinthestocklocations.Subframe
connectorsarepermitted.
WHEELBASE
Entriesmustretainstockwheelbasedimensionsof+or–1inch.Maximumwheelbasevariation
fromlefttorightis1inch.
GROUNDCLEARANCE
Aminimumof4inchesfromthefrontofthevehicleto12inchesbehindfrontspindle
centerlineismandatory.Aminimumof3inchesfortherestofthevehicleismandatory(except
foroilpanandexhaustheaders).
TIRES&WHEELS:5
TIRES
DOTorbias-plyracingslicksarepermitted.Actualmeasuredtreadoftireislimitedto10.75
inchesby26.5inchestall.Tirewidthwillbemeasuredbya“go-nogo”gaugeafterconclusionof
runatscalearea.Tiretreadmaynotextendoutsidefenders.Tireshavingisprohibited.
WHEELS
Aftermarketracingwheelspermitted.Spindlemounttypefrontwheelsareprohibited.
INTERIOR:6
UPHOLSTERY
Musthavefullfactorytypeupholstery,includingcarpet,doorpanels,headliner,andfactory
dash.Driver’sandpassenger’sseatsarerequiredandmountedinthestocklocation.
Aftermarketfrontseatsarepermittedandmustbeupholstered.Rearseat,heaterandA/C
controlsmayberemoved.
STEERINGCOLUMN/WHEEL
OEMorstocktypesteeringcolumnrequired.Steeringcolumnmusthaveafactoryappearance.
Removablesteeringwheelispermitted.
PEDALS&PEDALLOCATION
Stocktypepedalsandlinkageinthefactorylocationarerequired.
BODY:7
BODY
Bodymustretainoriginalappearancesandprofilesforyear,makeandmodelbeingused.OEM
bodyshellmustbeintact.Lightweightbodypanelsarerestrictedtohood,bumpersanddecklid/truck-lidorhatch.Hoodcanbealiftoffstyleanddeck-lid/trunk-lidorhatchmustbehinged.
Liftoffstyledeck-lid/trunk-lidorhatchisprohibited.Alterationsoraerodynamicmodifications
areprohibited.
HOODSCOOPS
Theuseofaftermarketforwardfacinghoodscoopsisprohibited.FordOEMhoodscoopsare
permittedandmustbesealedofffromfreshair.Theuseofcowlinductionstylehoodsare
permittedonanyvehiclewithamaximumheightof6inches.Cowlheightwillbecheckedfrom
thetallestpointofthehoodtothefenderline.Allentriesareonlypermittedtouseanairpan
thatallowsforfreshairtobesourcedfromtherearofthecowlhood.Nootherfreshairsource
ispermitted.
COWLAREA
CompleteFordOEMcowlisrequired.
GRILLE
Grillemustbefullproductionformake,modelandyearbeingclaimed.Coveringinfrontofor
behindthegrilleisprohibited.
BUMPERS
Nobodycomponents,bumperadd-ons,sillplates,chinspoilers,bodykits,licenseplateframes,
etc.arepermittedtobeaddedtothenoseofthevehicle.‘’Outlaw’’stylebumpersare
prohibited.
FIREWALL
Stock,unalteredfirewallisrequired.
FENDERSPLASHPANS
Full,factoryFordOEMoraftermarketinnerfendersarerequired.
WINDSHIELD&WINDOWS
AllFordOEMglassisrequired.OpticArmorstockreplacementwindshieldispermitted.
FLOOR
Theentirefloor,includingtransmissiontunnel,andtrunkfloormustbeunalteredandinthe
stocklocation.Manualtransmissionvehiclesareonlypermittedtomodifythetransmissionfor
shifterclearance.
WHEELWELLS
Factorywheelwells/tubsarerequired.Widening/sectioningfortirefitmentispermittedand
mustmaintainaFordOEMappearance.Aftermarketstylemini-tubsareprohibited.
WING/SPOILERS
Rearwing/spoilerispermittedwithamaximumlengthof26inches.Rearwing/spoilerwillbe
measurefromthetransitionpointofthedeck-lid/trunk-lidtotherearmostportionofthe
wing/spoiler.Anyadjustmentstothewing/spoilerduringarunareprohibited.
STREETEQUIPMENT
Headlightsandtaillights/brakelightsarerequired.
APPEARANCE
Allcarsincompetitionmustbepaintedorwrapped.Advertisinggraphicsarepermittedonthe
body.InordertobeeligiblefortheNMRAofficialcontingencyprogram,allcontingency
sponsors’decalsmustbeeasilyvisibleandlocatedontheoutsideofthevehicle.Failuretodo
socanresultinthedriverforfeitingallclaimedcontingenciesforthatparticularevent.The
NMRAdoesrequireallentriestorunthefollowingdecals:
1. NMRAWindshieldBanner:Decalneedstobelocatedonthetopofthewindshieldor
justabovethewindshieldlocatedonthebody.
2. NMRADragRacingSeries:Decals(2)mustbelocatedoneachsideofvehicle.Eitheron
thesidewindowsordecalscanbelocatedonthebodyrightbesidethesidewindows.
3. ClassSponsor:Decalmustbelocatedonthepassenger’ssidelowerportionofthe
windshield.
4. VP Racing Fuels: Official Fuel decals (2) required. Mustbelocatedoneachsideof
vehicle. (In a contingency decal manner)
5. AerospaceWinnersCircle:Decals(2)mustbeprominentlydisplayedoneachsideof
vehicle.Failuretodosocanresultinthewinningdriverforfeitinghis/hersWinner’s
Trophy&Payout.
6. Class&CompetitionNumbers:Numbersmustbeeasilyvisible/legibleandlocatedon
thefront,back,andbothsidewindows
ELECTRICAL:8
BATTERIES/CHARGINGSYSTEM
Batterymayberelocatedandmustbeanautomotivetype.Chargingsystemmustbefunctional
anduseOEM6-ribbeltthatiscrankdriven.
IGNITION
Anybatteryoperatedignitionsystemispermitted.DistributordrivesystemmustbestockFord
OEMasproducedfromthefactory.Modularenginesarepermittedtousecam-drive
distributors.
MASTERCUTOFF
Amastercutoffswitchismandatoryonallvehicleswithabatterylocatedinthetrunk.
STARTER
Aftermarketstarters,instocklocationpermitted.
SUPPORTGROUPS:9
COMPUTER/DATARECORDERS
OnlyNMRAapprovedexternaldatarecorders,dataloggers,arepermitted.Anywide-band02
devicemustbecapableofonlyloggingair/fuelratio,andmaynotberuninclosedloopwithEFI
orignitionsystem.Onlyasingle02sensorispermittedtobeinstalledineachheadercollector.
PlaybacktachometerspermittedincludingthosethatrecorddriveshaftRPM.Laptops
prohibitedinvehicleduringcompetition.
ApprovedDataLoggers:
• Racepak:SportsmanSeries/IQ3
• AEM:AQ-1
• Port-a-TreeData:ElectronicSwitchPanel
• Computech:DataMax
• RPMPerformanceProducts:DL10
• PerformanceTrends:DataMiteIII
• Altronics:DataQuest
• HolleyDigitalDash
TOWVEHICLES
Theuseoftowvehiclesispermitted.
DRIVER:10
DRIVER
Thedriverwheninthevehicle,fromthereadylineuntilthevehicleissafelystoppedonthe
returnroad,isrequiredtohaveallsafetyrestraintsystems(includingthehelmet)onandbe
securelyfastenedinthevehicleatalltimes
CRENDENTIALS
AValidstateorgovernmentissueddriver’slicensebeyondalearner/spermitlevelis
mandatoryforcarsrunning10.00orslower.AvalidNHRAcompetitionlicenseismandatoryfor
carsrunning9.99orquicker,ataNHRAMemberTrack.AvalidNHRAoranIHRAcompetition
licenseismandatoryatanIHRAMemberTrack.
Note:Itisultimatelythecompetitor’sresponsibilitytofamiliarizethemselveswiththeNMRA
classrequirementsaswellasallNHRAsafetyrequirements.Thecompetitoragreestheybear
theultimateresponsibilitywhenitcomestosafetyandhowitcomplieswiththeNMRAand
NHRArulebooks.Thecompetitoralsoagreesthatnooneelseotherthanthecompetitorisin
thebestpositiontoknowabouthowtheirparticularracecarhasbeenconstructedandhowto
safelyoperateit.