2019 IHRA Rulebook

IHRA 27 SUMMIT “SPORTSMAN” SAFETY AND GENERAL GUIDELINES IN ADDITION TO THE FOLLOWING RULES, REFER TO THE “GENERAL REGULATIONS - ALL CLASS” SECTION IN THIS BOOK FOR ADDITIONAL RULES AND CLARIFICATIONS THAT MAY APPLY TO YOUR COMBINATION. 0 to 9.99 1/4 mile 0 to 6.49 1/8 mile In addition to the following rules, also see IHRA Summit Sportsman Bracket Safety and General rules. AXLES: Aftermarket axles and axle retention device mandatory. BRAKES: Full body cars must have 4 wheel brakes. Cars running 8.49 or quicker 1/4 or 5.49 or quicker 1/8 must have dual stage master cylinder. DATA RECORDERS: Permitted. See General Regulations. DRIVE LINE: 1 Driveshaft loop required on all entries. DRIVER RESTRAINT SYSTEM: Mandatory meeting SFI 16.1 within 2 year expiration from date of manufacture. FIRE SYSTEM: Required on all closed body cars 7.49 or quicker 1/4 or 4.49 or quicker 1/8. One nozzle located in drivers compartment in front of feet and one nozzle on engine. Safety pins must be red flagged. On all other closed body entries, a properly secured fire extinguisher is mandatory. FLEXPLATE AND SHIELD : SFI 29.1 Flexplate and SFI 30.1 Shield are mandatory on entries running 9.99 or quicker 1/4 and 6.49 or quicker 1/8. FLOOR: Floor on all cars 8.49 or quicker in the quarter mile or 5.49 or quicker in the eighth mile. Floor must be steel on the driver’s side and welded to chassis minimum thickness .024. All other places may be .032 aluminium. HARMONIC BALANCER: SFI 18.1 mandatory. HELMET: SN, SA, M or K-2010 or newer mandatory. LICENSE: See License requirements for specifics. MASTER CUTOFF: Mandatory. See General Regulations. PARACHUTE: Mandatory on entries at 150 mph 1/4 or 125 mph 1/8. PROTECTIVE CLOTHING: On all entries running 9.00 or quicker 1/4 or 6.00 or quicker 1/8 mile, a minimum of an SFI 3.2A-5 Jacket and Pants and a 3.3 neck collar are mandatory. 3.3-1 gloves are mandatory on entries running 8.49 or quicker 1/4 mile or 5.49 1/8 mile. Additionally, 3.3 arm restraints and 3.3-1 gloves are mandatory on all on open bodied entries. A 3.2 A-5 jacket is mandatory on all other configurations. ROLL CAGE: Roll cage mandatory on all entries. On full bodied cars with an unaltered floor and firewall running 6.40 or slower in the 1/8th mile, a roll bar is permitted in place of roll cage. All entries running 9.00 or quicker 1/4 mile or 6.00 or quicker 1/8 mile must have a current Chassis Certification. See SFI Specifications and General Regulations. TRANSMISSION SHIELD: SFI 4.1 mandatory. WHEELBASE: Minimum 85” unless OEM was less and vehicle is equipped with original engine. Minimum of 125” on all dragsters. Wheelbase variation, left to right 1” maximum. 10.00 to 11.49 1/4 mile 6.50 to 7.49 1/8 mile In addition to the following rules, also see IHRA Summit Sportsman Safety and General Rules. AXLES: Aftermarket axles and axle retention device mandatory on entries running 10.99 and quicker 1/4 mile or 6.99 and quicker 1/8 mile. BRAKES: Minimum of two rear-wheel hydraulic brakes required. Full body cars must have four wheel brakes. Entries with two wheel brakes require parachute. DATA RECORDERS: Permitted. See General Regulations. DRIVELINE: 1 Drive shaft loop mandatory on all entries. DRIVER RESTRAINT SYSTEM: Must meet SFI 16.1 within 2 year expiration from date