• Firewall must be in stock location, minor modifications for trans, etc is OK.
• Floor pan may be patched or repaired with welded in factory replacement panels. May be altered for thru the floor sub-frame connectors, etc.
• No body alterations.
• Factory headlights and taillights.
• Fiberglass ok. No one piece fiberglass front ends. Fiberglass replacement parts must look factory.
• Forward facing hood scoops permitted.
• Drilling/cutting holes in hood for air inlet prohibited.
• No Pro Mod style wings. Max Wing 15" from leading edge.
• Lexan allowed.
• Interior:
  • Two Front seats, turbo/supercharger cars may remove passenger seat for plumbing. Nitrous cars may remove passenger seat if bottles mounted in area.
  • Driver Seat must be mounted in front of Door Jamb
  • Carpeted interior
  • Door panels (aluminum door panels allowed)
  • Stock Dash (aftermarket gauges allowed)

Tires
 

• 10.9 Tread width max, NO W's. Hoosier part # 18192D05 will not be allowed.

• 12.5 sidewall designation DOT Tires max not to exceed 10.9 inches of tread

• Max P295/65R15 drag radial. 10.9 Tread width max

Power Adders

• Only ONE type power adder allowed

• Timers and controllers are allowed.

• Progressive nitrous controllers and data recorders allowed.

• Conventional headed small blocks allowed two stages nitrous systems.

• Big blocks limited to one single stage nitrous system.

• Single stage fogger max 4 solenoids allowed.

• Single stage plate is allowed 1 nitrous solenoid -1 entry point and 1 fuel solenoid 1 entry point allowed.

• Sm blk 2 stage entries may run any combination of 2 stages.

• Additional nitrous systems must be capped off at the solenoids.

• Dual stage, single nozzle foggers are not allowed.

• Push systems prohibited.

• Maximum nitrous supply line from bottles to solenoid is a single #6 line. Multiple nitrous bottles must be "Y" together at the bottles and a single #6 line from the "Y" to solenoids.

• Single Turbo/supercharger allowed on small block only.

• Max 91mm inlet - max exducer size 5.560"

  • air to air and air to water intercoolers allowed

Transmission

• Automatic or factory equipped manual.

• NO Brunos, Lencos etc.

Engines

• NO Sheet metal Intakes

• Must use mass produced cast aluminum intakes (no tunnel rams)

• Single Carburetors only

• EFI max 90 MM throttle body. 1250 CFM max

• All cars must run gasoline (no alcohol or methanol)

• Dry Sumps Not allowed

• All big block engines limited to 10.2" deck height.

Heads

• Billet or custom fabricated heads prohibited.

• Internal port areas of cylinder heads may be welded or epoxied for repairing, but heads must maintain standard "as produced" valve/port layout design, valve cant, and valve spacing. (no substituting canted valve for inline head, etc.)

• Big Block cylinder heads must be conventional style and retain 24* style port/valve configurations. BBC 18* heads not allowed.

• Small Block cylinder heads must be conventional style with a minimum 15 degree valve angle .

• All valve angles will be + or - 1 deg.

• No Big Chief style heads.

• Porting allowed.

• Sm blk canted valve, 18*, 15* & LS1 style heads will be allowed (see weight breaks).

Exhaust

• Mufflers Required.

• No Insert or Collector mufflers.

Weight Breaks

• Small block (2 N2O kits):

  • N2O TRUE 23* headed SBC or 20* SBF - 2800 lbs

  • 15* Ford, 18* Chev heads & LS1 - 3000 lbs

  • Canted valve heads - 3100 lbs

  • One stage N20 – deduct 100 lbs

  • Over 450" will be considered a big block

• TURB0 (sm blk only):

  • 380 – 450 max cid - 3200 lbs

  • Under 380 cid - 3100 lbs

  • Supercharged F2 or equivalent - 3250 lbs

  • V-6 - 3000 lbs

• Big Block (1 N20 kit only):

  • Up to 550" - 3200 lbs

  • 550" - 605" –3300 lbs

  • 606" - 640 - 3400 lbs
     

Weight breaks may be modified/adjusted

GENERAL RULES



• Any car that fits within the rules of this class is welcome to race.
• All races will be run on a .400 Pro Tree; Courtesy staging will be in effect.  All cars must stage on their own power. Deep staging is not allowed.
• Rules of the appropriate sanctioning body will be in effect NHRA and IHRA depending on the host track.
• Safety rules of the Host track will be in effect.
• We will run the race by "gentleman's" rules - this means that we will trust you are following the rules.  Be advised that anyone, at any time, can protest you and your car WILL be inspected and scaled.

• All drivers, pit crew and family members will be expected to act in a professional manner. It is the driver’s responsibility to ensure that all pit crew members as well as family members adhere to this rule, any violation will result in disqualification and loss of entry fees.
• Rules are subject to change.
• Under no circumstances are you to pull to the line without proper safety gear in place. This means EVERYTHING. Gloves, Helmet, jacket, pants, harnesses, etc. This is for your own safety.
• No infrared "cheating" devices are allowed on ANY car participating. This means ANYTHING that hangs from the front of the car in front of the tires, below the front of the car in front of the tires - or any thing that can trip the beams at the end of the track before the tires can.