All front engine cars must have a SFI 14.2 or 14.3 Supercharger Restraint with approved bag from same manufacturer with the restraint straps and bag covered with fire resistant material. All lines on supercharged alcohol cars must be routed in such a way that they are not directly in line with cylinder head gaskets at the front, rear, or side of the cylinder heads.Īll entries must be self-starting with an onboard starter and battery.Īll supercharged entries may utilize a 14-71 (or smaller) standard or hi-helix supercharger. Label must indicate date, PSI, and tester ID label must be impervious to fuel and brake-clean. Competitors may test and tag their own lines. Permitted on non-supercharged or non-turbocharged entries only.Īll flexible-pressure oil lines, excluding return lines and any line 30psi or lower in pressure, must pass a minimum 300psi test for 30 seconds with no indications of separation, weeping, leaking, etc. All fuel tanks must be equipped with a positive locking screw-on cap and vented to outside of body.Ĭatch-can mandatory for coolant overflow one-pint (16-ounce) minimum capacity. All entries must have sufficient tank capacity to make full runs adding of fuel after the engine has started is prohibited. No part of the fuel system may be mounted on firewall or in flywheel/flex plate area. Nitromethane and propylene oxide prohibited.įuel lines must be isolated from driver compartment with a sub-floor or with steel-braided lines where the engine is located in the rear and the fuel tank is in front of the driver. NHRA-accepted racing gasoline, gasoline, alcohol, gasohol, ethanol, permitted. If zoomies are utilized must be turned upward minimum three degrees. Exhaust must be directed out of the car body to the rear, away from driver and fuel tank. See General Regulations 1:8.Ĭompetition exhaust systems permitted. A nonflammable, oil-absorbent liner mandatory inside of retention device. The belly pan must extend from frame rail to frame rail and extend forward of the harmonic balancer and rearward to the rear motor plate and must incorporate a minimum 2-inch-high lip on all sides. Harmonic balancer meeting SFI Spec 18.1 mandatory.Īll cars must utilize an NHRA-accepted lower engine oil-retention device may use a belly pan in lieu of a device attached to the engine. Engine may be in any location in dragster front engine only in altered. Throttle stops prohibited.Īny internal combustion reciprocating automotive engine permitted any modification to engine acceptable. Any cars running quicker than 6.00 seconds must meet all comparable requirements for TAD or TAFC.Ĭarburetors, fuel injection or electronic fuel injection permitted. Refer to the current NHRA Rulebook and/or rules revisions for additional vehicle/driver requirements, specifications, and general regulations. * Divisions 6 and 7 minimum weight for all entries 1350 pounds. Naturally-aspirated 4 or 6 cylinder: 1,400 pounds Naturally-aspirated small-block: 1,500 pounds Naturally aspirated big-block dragster 1,600 pounds Supercharged or turbocharged small-block altered: 1,700 pounds Supercharged or turbocharged small-block dragster: 1,650 pounds NOS small-block: 1,550 pounds Supercharged or turbocharged big-block dragster: 1,800 pounds Naturally aspirated big-block altered: 1,800 pounds Supercharged or turbocharged big-block altered: 2,000 pounds Numbers must be at least four inches high. Qualified fields with competition conducted in a dial-in E.T. Altereds must have open front wheels no full fender and/or running board equipped street roadsters or funny car bodies permitted. Top Dragster Rules Top Dragster RulesĬlass is for dragster and open bodied altered-type vehicles only.
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