BF GOODRICH TIRES - MEAN STREET
NMCA SERIES 2008 RULES

General Overview
Mean Street is an entry-level non-power adder class in the NMCA-Edelbrock series. Mean Street is designed for naturally aspirated, street equipped, cars and trucks. Mean Street entries are permitted small blocks with a maximum of 385 ci. Mean Street permits a variety of race-proven modifications and performance enhancements on stock bodied, stock appearing vehicles. Mean Street class is for 1950 and later American production cars and trucks. Mean Street racing will be conducted at all drag racing events (see race schedule).

Qualifying Information, Ladder Type, & Tree
All Run, NHRA Sportsman Ladder, Pro .400 tree, Heads-Up.

Base Weight Breaks*
ENGINE         BASE CI                 WEIGHT
Small Block     311                              2,950
Small Block     350                              3,150
Small Block     365                              3,300

Weight Adders/Deducts:
Chevrolet (Non LS) & Mopar combinations may deduct 50 lbs.
LS based engines add 150 lbs
Trick Flow Twisted Wedge Ford Heads add 50 lbs.
Maximum cubic inches for all combinations is 385 CI.
1950 – 1974 body styles and all Trucks – deduct 75 pounds from base weights.
Manual transmission – add 75 pounds to base weights.

*If actual cubic inch is more than base cubic inch listing, there will be a weight penalty of 10 pounds per cubic inch assessed to base weights, up to the maximum cubic inch permitted in the class.

Note: All weights are with driver & rounded down to the five pound increment. Ex: A calculated weight of 2968 would be required to weight 2965 with driver at scales.

Accepted Products Deadline: NMCA will accept requests from manufacturers to have new products considered for addition to 2008 accepted lists only up until November 10, 2008. After this date, NMCA will consider manufacturer requests for new products for the 2009 season.

1: ENGINE
1.1 COOLING SYSTEM
RADIATOR: OEM production-style or aftermarket radiator is required and must be mounted in stock location. Stock core support is required.
Water pump: Electric water-pumps and drives permitted.
COOLING FANS: Any permitted.
1.2 ENGINE
ENGINE: Engine must be a V-8 small block automotive type engine (see accepted list). Cross breeding of an engine to a different make of body permitted. Engine swapping permitted during event.
Water injection is prohibited.
1.3 EXHAUST
EXHAUST: Adapter plates permitted to bolt headers to cylinder head. Exhaust must be directed out of car body, away from driver and fuel tank. All exhaust gases released from engine must pass through muffler(s).
1.3a) HEADERS & COLLECTORS: All entries allowed to use tubular headers.
1.3b) EXHAUST TUBING/SIZE: Maximum exhaust tubing size 3-inch.
1.3c) TAILPIPE & EXHAUST RULES: Exhaust system required within 12-inches forward of the centerline of the rear end housing.
1.3d) MUFFLER REQUIREMENTS: Mufflers required, maximum inlet & outlet size 3-inches. A maximum of two (2) mufflers is allowed. A maximum of one (1) inlet and one (1) outlet is permitted. Collector mufflers are prohibited.
1.5 FUEL-DELIVERY SYSTEM
DELIVERY SYSTEM: Electric or mechanical fuel pumps permitted. Pressure regulators and any line size permitted. All fuel lines must originate and return to a single, non-segmented, fuel cell or OEM fuel tank. Fuel pump must shut off with a master electrical switch. Any method of artificially heating or cooling fuel prohibited (cool cans, ice, wet rags, Freon, etc.). A valve for removal of fuel (gasoline) during technical inspections is mandatory. Valve must be installed between carburetor/injection and regulator, and should be installed in such a manner that allows a cup to be placed to catch fuel removed from the line. Exit of valve should be capped or plugged in addition to being closed for added safety.
Aftermarket/fabricated fuel tank or cell permitted. Must be located in trunk area. If tank or fuel filler is inside trunk, a bulkhead of minimum .032” aluminum or .024” steel must be used between trunk and driver compartment, and tank must be vented to outside of car. When used, fuel cells must have a metal box protecting the part of the fuel cell that is outside the trunk floor. Non-metallic fuel cells or tanks must be grounded to frame. See NHRA General Regulations Section 1.5.
1.6 GASOLINE
GASOLINE: Gasoline as outlined here is the only acceptable fuel for use in this eliminator for the specified combinations (See Section 13). The NMCA-Edelbrock Racing Association reserves the right to check gasoline at any time during competition. Gasoline, as defined by the NHRA rulebook, is a mixture of hydrocarbons only. The average dielectric constant (D.C.) for the hydrocarbons that compromises gasoline is 2.025. This is defined as a reading of “0” on the fuel-check meter.
SPEC FUEL: This class requires the use of one of the allowable spec fuels in this class. Mixing of fuels prohibited. Failure to pass fuel check is grounds for disallowance of the run during competition and disqualification from the event during eliminations.
1.9 OIL SYSTEM
OILING SYSTEM: Wet sump oiling system required. External oil pumps prohibited. Oil lines run outside engine block to feed oil galleries prohibited. Vacuum pump and/or evacuator system (header, or otherwise) prohibited. Any oil pan permitted.
1.10 SUPERCHARGER
SUPERCHARGER: Prohibited.
1.15 BLOCK
BLOCK: Engine block is restricted to cast iron small block engine block with OEM design & factory bore spacing. Aluminum blocks prohibited.
THE FOLLOWING SMALL BLOCKS TYPES ARE THE ONLY PERMITTED IN THIS CLASS:
Ford Windsor 289-302-351
Ford Cleveland 351
Chrysler 318-340-360
Chevrolet 302-307-327-350
Chevrolet LS 4.8, 5.3, 6.0, and LSX (p\n 19166454) Block.
See section 1.29 for maximum bore size for block used.
1.16 ENGINE LOCATION/MOUNTS
ENGINE LOCATION\MOUNTS: Engine may be relocated, but block and/or heads must not touch stock firewall or cowl area. Engine plates prohibited, solid engine mounts permitted.
1.17 HEADS
HEADS, GENERAL: Mean Street is intended for street performance cast iron or aftermarket aluminum cylinder heads.
1.17a) HEADS, PERMITTED: Original manufacture, generally available heads, accepted by NMCA-Edelbrock, permitted. External modifications prohibited in port area. Spark plug placement and depth must remain stock. Billet or fabricated heads prohibited. Cylinder heads must be overhead valve single spark plug per cylinder design. One-off or custom made cylinder heads prohibited. The NMCA-Edelbrock director must approve new cylinder heads or any changes to accepted heads in writing prior to competition.
1.17b) HEADS, MASS PRODUCED: Any mass produced, commercially available, NMCA-accepted, commonly available, cast aluminum or cast iron cylinder head is permitted. Low volume, one off, aluminum cylinder heads prohibited.
1.17c) HEADS, BOLT PATTERN: Mean Street class is only permitted OEM standard bolt pattern for cylinder head, intake manifold, and header/exhaust bolt pattern. Adapter plates may be utilized on exhaust side, and may utilize aftermarket bolt pattern.
1.17d) HEADS, PORTING: Prohibited. Port matching also prohibited. **Certain NMCA-Accepted “out-of-the-box” cylinder head part numbers contain minor porting/port matching by manufacturer. These heads are accepted “as supplied” only, and no additional porting/modifications/cleanup can be performed.
Runners and combustion chambers must retain OEM appearance. Final acceptance at the discretion of NMCA Technical Department.
1.17e) HEADS, WELDING/EPOXY: Prohibited. In case of a needed repair to an isolated area of the cylinder head, contact NMCA tech director to determine legality.
1.17f) HEADS, VALVES: Any aftermarket steel valve permitted. Stock stem diameter (in guide area) required for head used as supplied by manufacture. Maximum head diameter of intake valves is 2.025”; maximum head diameter of exhaust valve is 1.610”. Bronze lined or replacement guides permitted. Valve guide location must remain stock.
1.17g) HEADS, MILLING: Angle milling is acceptable. However, approved cylinder heads must maintain (and keep as measured) the original-production engine cylinder head valve angles +/- 3 degrees. Other than the variations listed below, all cylinder heads must measure +/- 3.0 degree of stock original-production engine cylinder head angle. For example, all Small Block Chevrolet cylinder heads, regardless of valve angle from manufacturer, must measure a minimum of 20.0 degree, to a maximum of 26.0 degree valve angle; all Small Block Ford cylinder heads must measure a minimum of 17.0 degree valve angle, to a maximum of 23.0 degree. The following cylinder heads have slight variations to the above descriptions but are permitted. On these exception heads, valve angle must remain as cast on the approved-version head with +/- 2.0-degree tolerance:
TFS Twisted Wedge
LS Series Heads
1.17h) HEADS, PUSHROD SLEEVES: Prohibited.
1.17i) HEADS, COMBUSTION CHAMBER VOLUME: No regulations limiting combustion chamber volume.
1.17j) HEADS, PORT PLATES/ADAPTER PLATES: Port plates/adapter plates prohibited on intake side of head. Port plates/adapter plates used on exhaust side of cylinder head restricted to a maximum thickness of .500-inch.
1.17k) VALVE JOB: Any valve job permitted.
1.17l) ALLOWED CYLINDER HEAD LIST: The following cylinder heads are the only accepted versions for the Mean Street class.

Small Block Ford
• Stock Factory OEM Iron Windsor 5.0, 289, 302, & 351 Heads, OEM 2-bbl Cleveland
• Ford GT-40, GT-40P, GT-40Y, GT-40X Cast Iron & Alum. Cylinder Heads
• Edelbrock Performer & RPM, PN# 60329, 60359, 60279, 60229, 60259, 60269
• Brodix ST 5.0 & ST 5.0 R Aluminum Cylinder Heads
• World Products Windsor Jr, & Roush 180 PN# 53030, 23030, 53030, 23030
• Holley 5.0 Aluminum Cylinder Heads, PN# 300-573, 574, 575, 576, 577, 578, 579
• TFS Twisted Wedge & Track Heat Heads (not “R”, not “Street Heat”).
• Dart PRO 1 170cc As-Cast

Small Block Chevrolet
• Standard 350 Non-LS Series: Stock Factory OEM iron or aluminum heads (except LT5)
• Edelbrock Performer, RPM, E-Tec 170cc
• Dart Iron Eagle 165cc & 180cc only
• Brodix ST & RR 180
• World Products S/R Torquer
• Chevrolet Vortec (L31) 170cc cast # 10239906, 12558062

1. • GM Gen III LS Series Stock Factory OEM Aluminum Cathedral port Heads LS1, LS2, & LS6 (LS7, L92, LS3 are prohibited)

Chrysler Small Block
• Stock factory OEM iron or OEM aluminum 318/340/360 Cylinder Heads
• Edelbrock Performer RPM & RPM 340

Note: Stock Factory OEM heads are those cylinder heads that are factory production line installed on production vehicles as recognized by NHRA.

1.18 VALVETRAIN
1.18a) CAMSHAFT: Any flat tappet (solid or hydraulic) design camshaft permitted. Maximum lift at valve with zero lash is .550-inch.
1.18b) Stock Factory OEM hydraulic roller lifter permitted. Maximum lift at valve .500.
1.18c) LIFTERS: Stock type flat tappet or OEM hydraulic roller lifters permitted. Mushroom tappets prohibited. Stock OEM diameter lifters required for make of engine used. For hydraulic roller lifters: any modification to the clip, pushrod cup, piston, spring, or lifter body is prohibited. Hydraulic roller lifters may not be plugged or bottomed. Solid roller lifters are prohibited
1.18d) LIFTER BORES: Lifter bores permitted to be bushed.
1.18e) VALVE LOCK: Steel valve locks required.
1.18f) RETAINERS: Steel retainers required.
1.18g) ROCKER ARMS: Standard roller rocker arms or stock-type rocker arms permitted. Aftermarket shaft type rocker systems prohibited.
1.18h) CAMSHAFT DRIVE SYSTEM: Stock OEM type camshaft drive system required.
1.18i) REV KITS: Prohibited.
1.18j) PUSHRODS: 5/16-inch steel construction is only permitted.
1.19 CARBURETORS
CARBURETORS: Any standard design type carburetor up to, and including 750-cfm, permitted. Standard performance carburetor modifications permitted, including removal of air horn, internal and external modifications. Maximum venturi size allowed is 1.400-inch. Maximum throttle bore size is 1.690-inch. Standard-style boosters are required (no aerosol, annular, etc).
1.19a) AIR FILTER: Commercially available, mass produced, unmodified, automotive type air cleaner required. All incoming air must pass through air cleaner.
1.20 FUEL INJECTION
Fuel Injection: Prohibited.
1.21 INTAKE MANIFOLD
INTAKE MANIFOLD: Cast aluminum, single carburetor type intake manifolds with a common plenum required for all combinations. External and Internal Modifications of   intake prohibited. Intake manifold must be commercially available and mass-produced. Porting or port-matching prohibited. Welding or epoxy on any part of inside, outside, or plenum of intake prohibited. Carburetor spacers limited to a maximum thickness of 1.20-inch including gaskets. Tunnel rams of all types prohibited. 1.22 SOLENOIDS
SOLENOIDS: Prohibited.
1.23 TURBOCHARGERS
TURBOCHARGERS: Prohibited.
1.24 AFTERCOOLER/INTERCOOLER
AFTERCOOLER/INTERCOOLER: Prohibited.
1.25 POWER ADDERS
POWER ADDERS: Prohibited.
1.26 CRANKSHAFT
CRANKSHAFT: Stock or aftermarket steel crankshaft permitted. Internal balancing permitted. Minimum rod bearing shaft diameter is 2.000-inch. Modifications to crankshaft permitted. Composite or multi-piece crankshafts are prohibited.
1.27 CONNECTING RODS
CONNECTING RODS: Stock or aftermarket, steel or aluminum connecting rods required. Connecting rods may be of any design. Connecting rods may be free floating or press fit. Composite connecting rods prohibited.
1.28 HEAD GASKETS & QUENCH AREA
HEAD GASKETS & QUENCH AREA: Quench area is not regulated. Pistons may be below block, even with deck, or above block at top dead center. Any type single head gasket permitted.
1.29 PISTONS, PINS, RINGS
PISTONS, PINS, RINGS: Stock or aftermarket piston permitted. Piston must be flat top or dish design. The use of 3 rings is required. Gas porting of pistons assembly prohibited (side, top or otherwise). Wrist pins for all applications must be a minimum of .911-inch diameter, and must be of steel material. Valve relief’s optional. Bore size must be no greater than 4.080-inch for all combinations. See section 1.15 for permitted blocks.
1.30 BOOST CONTROLLERS
BOOST CONTROLLERS: Prohibited.
1.31 WASTEGATE & PRESSURE REGULATOR
WASTEGATE & PRESSURE REGULATOR: Prohibited.
1.32 VISIBLE COATINGS
VISIBLE COATINGS: Visible coatings are permitted where lubricants are present. Visible piston coating above the top ring is permitted. Visible coating of cylinder head runners, combustions chambers, and/or intake manifold runners/plenums prohibited.
1.33 “O” RINGING OF BLOCK
“O” RINGING OF BLOCK: Permitted.

2: DRIVETRAIN
2.3 CLUTCH
CLUTCH: Standard factory-replacement-style single disc diaphragm clutch required. Steel or aluminum pressure plate a minimum of 10.0-inch in diameter is required. Adjustable and/or long-style pressure plates are prohibited. Clutch operation must be operated using any linkage type.
2.4 DRIVESHAFT
DRIVESHAFT: Steel or aluminum OEM driveshaft required.
2.5 FLYWHEEL
FLYWHEEL: Permitted.
2.11 REAREND
REAREND: Any automotive type rear end permitted.
2.12 MANUAL TRANSMISSIONS
MANUAL TRANSMISSION: Only specified O.E.M. or specified aftermarket transmissions permitted. Overdrive gear(s) may be removed. Clutchless models prohibited. Any gear change must occur from direct action by the driver. Pneumatic, electric, hydraulic, etc. shifters prohibited. Pro-shifting is permitted. All transmissions must use either a). As produced, as supplied (unmodified) OEM gears and/or gear sets for transmission used or b). Specified stock replacement helical cut gears and/or gear sets in the exact form as submitted for consideration and accepted by NMCA. Gears and/or gear sets may not be utilized from other models (i.e. T-56 gears may not be used in T-5 transmissions). Transmission used is required to have a gear ratio in all gears as offered by the transmission used. Welding or grafting part of one countershaft to part of another counter shaft will not be accepted.
2.12a) PERMITTED MANUAL TRANSMISSIONS:
Tremec T5, Tremec T45, Tremec T56, Tremec TR3550, Tremec TR3650, Tremec TKO, Tremec TKO-500, TKO-600, & Tremec TKOII.
2.12b): SHIFTER: Must be commercially available bolt on shifter. Must have a single handle and attach to the transmission using only a) the OEM type mounting bolts in the OEM mounting holes and b) must use a single pivot-ball type shifting arm.
2.12c) PERMITTED GEAR RATIOS:
Tremec T5 (a) - 3.35, 1.99, 1.33, 1.00
Tremec T5 (b) - 2.95, 1.94, 1.34, 1.00
Tremec T45 - 3.37, 1.99, 1.33, 1.00
Tremec T56 (a) - 2.66, 1.78, 1.30, 1.00
Tremec T56 (b) - 2.97, 2.07, 1.43, 1.00
Tremec TR3550 - 3.27, 1.98, 1.34, 1.00
Tremec TR3650 - 3.38, 2.00, 1.32, 1.00
Tremec TKO/TKOII - 3.27, 1.98, 1.34, 1.00
T5 w/G-Force PN#5000 Dog Ring - 2.92, 1.99, 1.34, 1.00
T5 w/G-Force PN#5000 Syncro - 2.94, 1.94, 1.34, 1.00
Tremec TR3550/TKO/TKOII w/Liberty Gear PN#LG3500 - 2.92, 1.95, 1.34, 1.00
Tremec TKO-500 - 3.27, 1.97, 1.34, 1.00
Tremec TKO-600 - 2.87, 1.89, 1.28, 1.00
2.13 PURPOSE BUILT TRANSMISSIONS
PURPOSE BUILT TRANSMISSIONS: Prohibited.
2.14 AUTOMATIC TRANSMISSIONS
(OEM American transmissions or replicas of OEM American transmissions that use planetary gears)
AUTOMATIC TRANSMISSIONS: Any OEM automatic or automatic overdrive automatic transmissions with torque converters originally produced by any American automobile manufacturer permitted.
Lock-up transmissions/torque converters prohibited. Transmission-to-engine adapters permitted. Any gear change must occur as a result of an internal function of the transmission or from direct action by the driver. Pneumatic, electric, hydraulic, etc. shifters prohibited. Clutch not permitted with this type of transmission.
2.14a TRANS BRAKES
Trans brakes are permitted.

3: BRAKES & SUSPENSION
3.1 BRAKES
BRAKES: All cars must have front and rear hydraulic brakes. Automated brakes or any type of traction control is prohibited. Application and release of brakes must be a function of the driver’s foot. Line-lock permitted on front wheels only. Any other electric, pneumatic, or hydraulic device in the system is prohibited. Line-lock is prohibited on rear wheels/brakes.
3.2 SHOCK ABSORBERS
SHOCK ABSORBERS: each vehicle in competition must be equipped with one operative shock absorber for each sprung wheel. Shock absorbers may be either hydraulic or friction type, securely mounted and in good working order.
3.3 STEERING
STEERING: Manual or power assisted aftermarket steering system permitted.
3.4 SUSPENSION, general
SUSPENSION, GENERAL: This eliminator is designed for stock chassis, stock frame rails, and stock type front suspension. Rear suspension is required to be stock. Back half type chassis prohibited.
FRONT WHEEL DRIVE CONVERSIONS PROHIBITED.
3.4 SUSPENSION, FRONT
FRONT SUSPENSION:
3.4a) K-MEMBERS: Stock, aftermarket, or tubular type K-Members permitted. K-member may be modified in oil pan area to allow oil pan enlargement or removal.
3.4b) STRUT TOWER/UPPER SHOCK MOUNTING POINTS: OEM strut towers/shock tower required.
3.4c) CONTROL ARMS: OEM or aftermarket, stock-type replacement, control arms permitted.
3.4d) SHOCKS/STRUTS: Stock replacement type struts and shocks permitted in stock location. Coil-over front springs & shocks are permitted. Shocks & struts must resemble OEM components in length and type. Shocks must be stand-alone and may not be adjustable during run via electronic and/or other means. Electronic programmable shocks prohibited.
3.4e) SPRINGS: OEM replacement type aftermarket springs or coil over are permitted.
3.4f) COIL OVERS: Coil over shocks and struts permitted.           
3.4g) CAMBER/CASTOR PLATES: Bolt on type camber plates permitted.
3.4 SUSPENSION, REAR
REAR SUSPENSION: Stock type suspension, including leaf springs or stock 3 or 4 link permitted. Rear coil-over shocks prohibited.
Stock Type Suspension: Stock type suspension may utilize aftermarket, direct replacement type suspension components including aftermarket replacement shocks, springs (in factory location), leaf springs (may be moved inboard), and/or control arms. All stock type 3 or 4 link suspensions must maintain stock lateral angles and attachment points, but may be moved up or down on rear axle. Aftermarket torque arms permitted, if OEM equipped with torque arm. Attachment point of torque arm on body or frame may be relocated, but OEM attachment point at rear end must be retained. Aftermarket leaf spring kits permitted.
3.4a) 4-LINKS: Racing style 4 link suspensions prohibited.
3.4b) LADDER BARS: Prohibited.
3.4c) REPLACEMENT CONTROL ARMS & LEAF SPRINGS: Replacement upper and lower control arms and leaf springs permitted. Control arms may use any type bushing, bearing, or rod end. Control arms may be adjustable to any length.
3.4d) PANHARD BARS: Panhard bars permitted to control lateral movement of rear end housing. Panhard bars must be located aft of rear end housing, and control only lateral rear end movement. Panhard bars may be welded.
3.4e) SWAY BARS: Aftermarket or factory sway bars permitted. Aftermarket sway bars may be welded to both chassis and rear end housing.
3.4f) TORQUE ARMS: Permitted, if OEM equipped.
3.4g) REAR SHOCKS & SPRINGS: Aftermarket stock replacement style rear shocks and springs located in the OEM location (must bolt in to standard mounting locations) are the only permitted. Shocks must be stand-alone and may not be adjustable during run via electronic and/or other means. Electronic programmable shocks prohibited.
3.4h) TRACTION BARS: Bolt-on traction bars permitted provided front mounting point is no further forward than stock front spring eye on leaf spring equipped vehicles or stock front mounting point for control arms on coil spring equipped vehicles. Weld-on conventional-type traction bars permitted.
3.6 WHEELIE BARS
WHEELIE BARS: Prohibited.

4:FRAME
4.4 FRAME
FRAME: Stock, unaltered frame rails required in front subframe. Subframes on unibodied cars may be joined under car. Stock rear subframes are required, but outer frame rail portion only may be notched for tire clearance only. When notching, stock inboard section of rear frame rails must remain stock, unaltered, and in stock location. Rear frame rail must remain in OEM stock condition in all areas. Notching for rear end clearance prohibited.
4.5 GROUND CLEARANCE
GROUND CLEARANCE: Minimum 3 inches from front of vehicle to 12 inches behind centerline of front axle; 2 inches for remainder of vehicle, except oil pan and exhaust headers.
4.12 WHEELBASE
WHEELBASE: Entries must retain stock wheelbase + or - 1 inches of stock. Maximum variation from left to right and front to back of 1 inch.

5: TIRES AND WHEELS
5.1 TIRES
TIRES–FRONT: Any tires permitted. Front tires must have a minimum tread width of 4.5 inches.
TIRES–REAR: Accepted street-type D.O.T. Radial tires are required. Drag radial tires must be suitable and designed for street use. Tire tread may not extend outside fenders. Tire shaving is prohibited. The following sidewall designation D.O.T. drag radial tires are the only permitted: 275/50/15 & 275/60/15. Slicks & wrinkle wall tires are prohibited.
5.1a) Permitted street-type D.O.T. radial tire list:
BFGoodrich Comp T/A Drag Radial
BFGoodrich G-force T/A Drag Radial
Nitto NT555R Drag Radials
Also accepted: any approved radial-construction tire with a D.O.T. tread wear rating of 180 or greater that fits all other criteria and sizing.
5.2 WHEELS
WHEELS: Spindle-mount front wheels prohibited.

6: INTERIOR
6.1 INTERIOR
Interior, GENERAL: Must maintain stock appearance including; factory OEM dashboard, headliner, & steering column cover. Heater/air conditioners may be removed.
6.4 CARPET
CARPET: Floor and tunnel where visible must be upholstered or carpeted. Headliner required.
6.5 SEATS
SEATS: Upholstered OEM or aftermarket seats (2) in stock location are required. Rear seat may be removed when roll bar/roll cage is installed; area must be carpeted or upholstered.
6.6 DOOR PANELS
DOOR PANELS: Door panels must be covered and stock appearing.
6.7 STEERING COLUMN
STEERING COLUMN: Stock O.E.M. or stock type steering column required. Removable steering wheel permitted.
6.8 GAUGES
GAUGES: Aftermarket gauges may be installed in factory dash.
6.9 PEDALS/PEDAL LOCATION
PEDALS/PEDAL LOCATION: Stock type pedals, linkage, and location required.

7: BODY
BODY: Vehicle must retain original appearances and profiles for year and make of body. Original O.E.M. body shell (unibody structure from firewall to taillight panel must be intact). Only 1950 & newer American production body styles permitted. Only lightweight body panels, steel, aluminum, or fiberglass, are restricted to hood, bumpers, and trunk-lid/hatch/deck-lid. Hood and/or trunk lid must be hinged or lift off. Funny car bodies prohibited. Body must be finished and painted. Alterations or aerodynamic modifications such as “chopped tops”, “channeling”, “sectioning”, “shortening” or “scaling down” prohibited. If a convertible top is used as an entry the use of ANY mechanism under or above the convertible top is not permitted. Ex: Building a cover that would be located above or below the convertible top, using straps below or above the convertible top, etc. Convertible tops need to be operational in all classes that the windows are required to operate. All entries with convertible tops must compete with top up.
7.1 ADVERTISING
GRAPHICS: Graphics (for advertising or creative purposes) permitted on entire body, including doors, hood, rear quarter panels, front fenders, spoiler, etc.
CONTINGENCY DECALS: In order to be eligible for NMCA official contingency program, all contingency decals are required to appear only on the rear quarter windows or rear window in a clear and organized fashion. Contingency decals may not be overlapped or modified. Other decals and sponsorship (non-contingency) may appear on bodywork, front end, and on windows.
NMCA REQUIRED DECALS: The following decals are required for competition in NMCA events.
NMCA Windshield Decal – must be installed on top of windshield. This NMCA decal must be the only decal on top of windshield. Other vehicle sponsor decals may be placed at base of windshield.
NMCA 2008 Drag Racing Series “Side” Decals – must be installed on each side of vehicle on quarter windows.
Class Sponsor Decal – class sponsor decal must be installed on base of windshield on the passenger side.
Permanent Numbers – permanent numbers are required for competition in this class.
7.2 SPOILERS
Rear SPOILER: Aftermarket rear spoilers permitted.
7.5 FIREWALLS
Firewall: Stock, unaltered firewall required.
7.6 FLOOR/TRUNK PAN
FLOOR: Stock, unaltered floor-pan, except for through the floor sub frame connectors and shifter clearance, required from firewall to back bumper. Flat area of floor-pan starting at “kickup” for rear end and rearward may be replaced with a minimum of .024” inch thick steel or .032” inch aluminum. Magnesium is prohibited. Transmission tunnel must remain stock & unaltered. Removable floor-pan sections and/or transmission tunnels prohibited.
7.7 HOOD/SCOOP
HOOD/SCOOP: OEM or aftermarket hood permitted. Aftermarket forward facing hood scoops prohibited. OEM forward facing hood scoops prohibited. Forward mounted scoops must be closed during competition. Cowl induction hoods restricted to a maximum of 6 inches tall as measured via the NMCA hood gauge, from the base of the hood where the hood meets the fender line along the entire length of the hood. The entire induction system must be completely covered by hood. Hood must be attached separately in a conventional manner and must be lift off or bolt on.
7.9 WINDSHIELDS/WINDOWS
WINDOWS: OEM safety glass required. Driver and passenger windows must be closed during racing.
7.10 BUMPERS
BUMPERS: Front and rear bumpers must be duplicates of originals and may be made of steel, aluminum, or fiberglass. License plate frame holders are not permitted to extend beyond flat surface of front bumper. No body components, bumper add-ons, or body kits are permitted to be added to the vehicle with the intent of increasing the frontal distance of the bumper for the purposes of breaking the infrared beams.
7.11 FENDER SPLASH PANS
FENDER SPLASH PAN: Full, factory OEM or aftermarket inner fenders required. May be trimmed for header clearance.
7.12 GRILLE
GRILLE: Stock grille required. Blocking of grille to prevent air passage is prohibited.
7.13 WHEELWELLS
INNER WHEELWELLS: Aftermarket wheel tubs permitted. Material used to add to the width of the inner wheelwell may be steel or aluminum, or fiberglass.
OUTER FENDERS: Leading and trailing edges of fenders may be trimmed for tire clearance, maximum 2-inch.
7.14 RAM AIR/ENGINE AIR PANS
RAM AIR: Aftermarket ram air or air pans of any type prohibited. Headlights/Tail Lights/Hazard Lights may not be removed/modified for air induction. All entries may only get induction air from under hood.
7.15 DOORS
DOORS: Driver and passenger doors must be functional and operable from inside and outside of vehicle.
7.16 AERODYNAMICS
AERODYNAMICS: Taping of any body parts, seams, or front end prohibited. Removal of side mirrors prohibited.
7.17 BODY KITS
BODY KITS: Accepted, commercially available body kits permitted. Filling in the lower valance for aerodynamic purposes prohibited.
7.18 COWL AREA
COWL AREA: Complete OEM cowl required.
7.19 FRONT FENDERS/FRONT FASCIA
FRONT FENDERS/FRONT FASCIA: Stock factory front fenders/front fascia required. May not be one-piece and/or removable.

8: ELECTIRCAL
8.1 BATTERY
BATTERY: Battery may be relocated. Charging systems including stock replacement alternator must be operative, may be relocated.
8.3 IGNITION
IGNITION: Any battery operated ignition permitted. Distributor drive system must be stock O.E.M. as produced. Factory equipped crank triggers are permitted, non-OEM crank triggers prohibited.
8.5 STARTER
STARTER: All entries must be self-starting with on-board starter.

9: SUPPORT GROUPS
Bracket racing aids such as optical sensors, delay boxes, stutter boxes, etc. prohibited. Throttle stops prohibited. The application or use of any device, mechanical or electronic that permits the driver to ascertain the position of their vehicle in relation to the starting line is prohibited.
9.2 ON BOARD DIAGNOSTICS\DATA RECORDERSONBOARD DIAGNOSTICS/DATA RECORDERS: Onboard diagnostics and data recorders used to monitor and record parameters such as a driveshaft speed, acceleration, nitrous timing, chassis strain, suspension travel etc., prohibited. Stand-along wide band oxygen sensors and recorders permitted, however device may not be capable of datalogging additional sensors and/or analog inputs, with the sole exception of tachometer signals. Any wide-band 02 device must be capable of only logging air/fuel ratio, and/or engine speed, and may not be run in closed loop with EFI or ignition system. Only a single 02 sensor is permitted to be installed in header collector only. “Playback” tachometers permitted (i.e. Autometer Dual Channel Ultimate II tachometers, and the use of its features). Laptops prohibited in vehicle.
9.8 TOW VEHICLES
TOW VEHICLES: Vehicles may be towed to the rear of the staging lanes. Vehicles may not be towed from the return road. Vehicles may be towed from the scales

10: DRIVER
10.4 CREDENTIALS
CREDENTIALS: See General Regulations

11: CLASS & SAFETY REQUIREMENTS
It is the participant’s responsibility to familiarize oneself with the class requirements as found in the 2008 NMCA rulebook and the safety requirements as found in the 2008 NHRA rulebook. The participant agrees that the participant bears the ultimate responsibility at all times to ensure the safety of participant’s vehicle and to ensure that participant complies with all applicable NHRA & NMCA rules. The participant agrees that participant is in the best position to know about the construction and operation of participant’s vehicle, equipment, and clothing, and whether there has been compliance with all applicable NHRA & NMCA rules.

12: STREET-LEGAL REQUIREMENTS
Headlights and tail lights for year & make of body used mandatory. Head lights & tail lights required to be functional.

13: TRUCK GUIDELINES
1. Bedcovers permitted.
2. Tailgate must be closed during competition.
3. Fullsize and compact pickups permitted.
4. El Camino-type vehicles must participate under passenger-car rules.
5. Rear-window glass may be replaced with Lexan for the purpose of accepting rollcage bracing that extends rearward from the cab.
6. Accepted modifications permitted to allow removal of bed from frame without removal of roll bar or roll cage bracing.

14: RULES ADJUSTMENTS, MID SEASON LOG
Date: Adjustment:
None at this time.