IHRA Rules 2008
9.99 and quicker:
AXLES: Aftermarket axles and retention device required (C-clip eliminators)
DRIVESHAFT LOOP: Required on all cars running 9.99 and quicker
DRIVER RESTRAINT SYSTEM: Mandatory SFI 16.1 within 2 year expiration date
FLEXPLATE AND SHIELD: SFI 29.1 flexplate and SFI 30.1 shield required
HARMONIC BALANCER: SFI 18.1 mandatory
HELMET: SN 95 and newer or SFI 31.1A, 31.2A, 41.1A, or 41.2A
MASTER CUTOFF: Mandatory
PARACHUTE: Mandatory at 150 MPH
PROTECTIVE CLOTHING: 9.00 or quicker-SFI 3.2a Jacket and Pants, neck collar, and gloves
ROLL CAGE: Mandatory Faster than 9.0 must have chassis cert
TRANNY SHIELD: Mandatory SFI 4.1
10.00-11.49
AXLES: Aftermarket axles and retention device mandatory
DRIVELINE: 1 Driveshaft loop mandatory
DRIVER RESTRAINT SYSTEM: Not Mandatory- If you have a 5 point it must be SFI 16.1 within 2 year cert
FIRE EXTINGUISHER: Mandatory–Must be properly secured
FLYWHEEL/CLUTCH: SFI 6.1 Flywheel Shield, and clutch, pressure plate, and flywheel meeting SFI 1.1
FLEXPLATE: Mandatory SFI 29.1 if vehicle exceeds 135 MPH
FUEL SYSTEM: All batteries, fuel lines, pumps or filler necks located in trunk must be isolated from driver’s compartment
HARMONIC BALANCER: SFI 18.1 required on all vehicles running 10.99 or faster
HELMET: SN 95 or newer, or SFI 41.1A, 41.2A, 31.1A, or 31.2A
MASTER CUTOFF: Mandatory on relocated batteries
PROTECTIVE CLOTHING: Minimum SFI 3.2A-5 Jacket and 3.3-1 gloves if running nitrous
ROLL CAGE/ROLL BAR: Roll cage (8 point) mandatory required on all entries faster than 135 MPH. All other require a 5 or 6 point roll bar.Convertible running 10.99 and quicker require 8pt. cage
TRANNY SHIELD: SFI 4.1 required on all automatics running faster than 10.99
11.50-13.49
DRIVESHAFT LOOP: Required on all vehicles using racing slicks
FENDERS: All fenders must be beaded or rolled if altered
FUEL SYSTEM: Lines must be routed outside of vehicle
HELMET: SN90 or newer
HOOD: Mandatory
MASTER CUTOFF: Required if battery relocated
ROLLBAR/CAGE: 6 point rollbar required on convertibles running 11.00-13.49. A cage is required on all entries running 135mph or faster.
STREET EQUIPMENT: One working taillight required
TRANNY SHIELD: Recommended for automatic vehicles to have blanket or shield meeting SFI 4.1
WINDSHIELD/WINDOWS: May be replaced with 1/8" Lexan. Must be clear except factory tinted glass. Windows must be closed during competition, but not required to be operational.
13.50 and Slower
BODY: Only full bodied vehicles
BRAKES: 4 wheel brakes mandatory
DRIVESHAFT LOOP: Mandatory on any vehicles using racing slicks
DRIVER: Must remain in stock location
EXHAUST SYSTEM: Headers permitted, must be designed to route exhaust gas away from car.
FIREWALL: OEM Type mandatory
FLOOR: Full floor mandatory
HOOD: Mandatory
ROLL BAR: Recommended
TRANSMISSION: Any OEM transmission allowed. Must have neutral safety switch
WHEELS AND TIRES: Must be automotive wheels suitable for street use. Racing slicks permitted. Motorcycle wheels prohibited. Minimum wheel size is 13". Recaps prohibited