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Insane Pro Mod (IPM)


DESIGNATION:  INSANE PRO MOD  or IPM followed by car number. Numbers must be at least 4” tall and on both side windows, upper left of rear window and upper right of windshield.

FIELD: 16 or 8 car qualified field.  Eighth Mile.

Minimum weight at conclusion of run, including driver 2,250 lbs. 2,150 for entries utilizing a small block engine.

* All rules subject to change at the sole discretion of the ADRL Technical Services.



BODY: Funny car or one piece bodies not allowed even if equipped with doors. Maximum front end overhang of 45” as measured from centerline of front spindles. An ADRL accepted extension may be used to reach 45” if the front end overhang of the body is less than 45”. All bodies must originate from a production vehicle. All new cars must be accepted by the ADRL competition department prior to construction. All vehicles must be professionally finished, painted, lettered, numbered and decaled.
DOORS: Required. Doors must be functional and able to be opened from both the inside and outside of the vehicle. Doors may be fabricated from carbon fiber, fiberglass or metal. A metal deflector between the fenders and the leading edge of the doors is required.
FIREWALL: Magnesium, aluminum or composite not allowed. All firewalls must be made of steel or titanium (.024″ minimum thickness).
FLOORS: Replacing stock floors with .024” steel or .032” aluminum allowed. Driver’s side floor pan must be .024” steel and must be welded in place extending from firewall to back of driver’s seat. Carbon fiber or composite materials may not be utilized in any portion of the flooring in the driver’s compartment except for any panel located behind the driver including suspension covers and wheel tubs.
HOOD SCOOP: Allowed. One opening only. Must be finished and painted to follow the bodies paint scheme.
TAIL LIGHT: Functional rear tail light is required. Tail light must be permanently mounted and controlled from the driver’s compartment.
WINDOWS AND WINDSHIELD: Required. May be replaced 1/8” think lexan, plexiglass or other shatterproof material. An opening with a 4″ diameter minimum is required on side windows adjacent to the driver.


BATTERY: Maximum of  two  batteries allowed.  All  batteries  must  be  securely  fastened. An  external master electrical shut off clearly labeled “PUSH OFF” is required.
BRAKES: Four wheel brakes with dual master cylinder mounted above frame rails required.
CHASSIS: SFI 25.1 E or 25.2 certification required.
DRIVER LOCATION: Must be in stock location, on left side of vehicle.
GROUND CLEARANCE: Minimum of 3” required from whatever portion of the vehicles body or chassis that breaks staging beam to 12” behind front axle centerline. Minimum of 2” for remainder of vehicle.
STEERING: SFI 42.1 steering wheel disconnect required.
SUSPENSION: Race car type suspension required. Solid suspension prohibited. Shock absorbers required for all four wheels.
TIRES: Automotive type tires designed specifically for racing required. Tires cannot be located outside of bodyline. Manufacturer, model and size information must be clearly designated.
WHEEL BASE: Minimum 100”, Maximum 115”. S-10, Ranger, Dakota Maximum 125”. Maximum variation is 2” side to side.
WHEELIE BARS: Required. Non-metallic wheels required.
WHEELS: Wheels meeting SFI spec 15.1 mandatory. Maximum width 16”. Use of a liner mandatory on all non bead lock wheels.


CLUTCH AND FLYWHEEL: Clutch and flywheel meeting SFI 1.3, 1.4, or 1.5 certification required. SFI 29.1 flexplate required on all torque converter equipped cars (SFI 29.2 recommended).
CYLINDER BORE SPACING: Bore Spacing is set at a maximum of 5.300”.
DRIVELINE: A full 360 degree driveshaft tube is required over yoke, extended a minimum of 12” from transmission tail shaft. Minimum thickness of tube housing is .050” chromemoly or titanium. Two piece units accepted with a minimum of 6 3/8” grade 8 bolts. SFI 43.1 driveshaft required.
ENGINE CONTAINMENT SYSTEM: SFI 7.1 lower engine containment system required. If a flexible 7.1 system is utilized, it must be accompanied by a carbon fiber or aluminum belly pan with a minimum 2” vertical lip.
ENGINE SETBACK: Maximum of 10% of total vehicle wheel base as measured from the centerline of the forward front spindle to center of front spark plug hole.
EXHAUST: Automotive type system designed specifically for racing required. Exhaust gasses must be directed out of the body towards the rear of vehicle and away from the driver and fuel system.
HARMONIC BALANCER: SFI 18.1 certification required.
FLYWHEEL SHIELD: SFI 6.3 certification required.
FUEL: Alcohol, Gasoline, Nitromethane and Methanol  allowed.  
IGNITION: Maximum of one (1) spark plug per cylinder on all supercharged or turbocharged vehicles.
INTAKE MANIFOLD: Burst panel meeting SFI 23.1 certification required.
REAR END: Automotive type, Full-floater rear end required. Titanium Wheel studs prohibited.
STARTER: Optional. No push starts allowed.
SUPERCHARGER AND OVERDRIVE:  Use  of  any  size  centrifugal,  roots-type  or screw-type  supercharger allowed. Maximum overdrive for a roots-type supercharger is 1.70 (70 percent over). Maximum overdrive for a PSI screw-type supercharger is 2.28 (128 percent over). Maximum overdrive for a Whipple screw-type supercharger is 1.60 (60 percent over). All screw-type superchargers must be certified to SFI Spec 34.1 and overdrive limit established to be  eligible  for  ADRL  competition.  Any  new  screw-type supercharger  must  be accepted for competition  prior  to  competing  at  an  ADRL  event.  All screw-type  superchargers must  display a  current SFI certification tag.
TRANSMISSION: Any type allowed.



CREDENTIALS: A valid NHRA  competition license.

COMPUTER: Allowed.



TOW VEHICLES: Allowed. A valid driver’s license is required to operate any type of tow vehicle. All passengers must be seated inside of vehicle with all doors closed. Riding in open hatchback, trunk or cargo area not allowed. ATV’s are allowed with a maximum of one passenger who must be seated at all times. Golf carts are allowed with a maximum of four passengers who must be seated at all times. Posted pit speeds must be obeyed at all times. If pit speed is not posted, maximum pit speed will be 5 mph.


DRIVER RESTRAINT SYSTEM: SFI 16.1 certification required. 7 point system recommended.
FIRE  SYSTEM: SFI  17.1  system required.  System  must  contain  a  minimum of  20  lbs of  fluid  or  gas  fire suppression agent. One nozzle required inside driver’s compartment must be directed at driver’s feet. Two or more nozzles must be directed at front of engine and fuel cell. All fire suppression must be released with a single actuation (i.e. single handle, button or lever).
HEAD AND NECK RESTRAINT: SFI 38.1 required. An aluminum skid plate located above driver’s head is recommended.
HELMET: SN-2010 or newer, SFI 31.2 or 41.2 required. Use of open face helmet prohibited. Eject Helmet Removal System (Part # SDR 890-01-30) or equivalent required.
MASTER ELECTRICAL CUTOFF: Required. Must be clearly labeled “PUSH OFF”.
PARACHUTES: Dual parachutes required. Separate shroud-line mounting points with 1/2” sleeved grade 8 bolts required. Chute Deployment Mandatory at the end of every pass.  
PROTECTIVE CLOTHING: A driver’s suit meeting SFI 3.2A/20, gloves meeting SFI 3.3/20, shoes meeting SFI 3.3/20 and a head sock meeting SFI 3.3 required. A head sock is not required when a helmet manufactured with a skirt meeting SFI 3.3 is used.
RF SHTUDOWN RECEIVER: Properly functioning Electrimotion shutoff device (part numbers SB001 and RF001) recommended.
ROLL BAR PADDING: SFI 45.1 required.
SUPERCHARGER RESTRAINT: SFI 14.2 minimum required on all roots-type superchargers. SFI 14.21 required on all screw-type superchargers. You must utilize the entire assembly including bag, plate and straps.
TRANSMISSION: All transmissions must be covered by a one piece SFI 4.1 restraint.
UPHOLSTERY: Driver’s seat foamed with energy absorbing material, formed for the driver and covered with flame retardant material is required.



RJS Racing Equipment




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