Prostreet

There are NO Rules until you go faster than 4.65!! Then the following rules apply!!!

  • Must have Working Headlights and Taillights
  • Lexan Allowed (Windows do not have to Function)
  • After Market Bolt on Front Clip Allowed
  • Tube Chassis Limited to Stock Wheelbase +/- 1 ” (Power adder Combo’s ONLY)
  • Tube Chassis Required to Carry 50% of Weight on Front Tires
  • Clutch Type Trans Permitted on N/A Only
  • Alcohol Permitted
  • Billet Heads (Add 100 Regardless of combo)
  • Hemi Heads Prohibited on Big Block Bore Spacing 5″ and Larger
  • Deduct 50 lbs for use of 1 Carburetor

NATURALLY ASPIRATED

  • Small Block – No Minimum
  • Big Block – 2400 lbs *Over 5” Bore Spacing and Up Limited to 31×10.5w Tires
  • 50 lbs Penalty for Chrysler Big Block with Non Conventional
  • Add 100 lbs to Non Conventional Headed Under 5” Bore Spacing
  • Add 300 lbs to Non Conventional Headed 5” Bore Spacing
  • Add 400 lbs to Non Conventional Headed Over 5” Bore Spacing

NITROUS

  • Small Block – 2500 lbs
    • Unlimited Kits/Stages
  • Big Block – 2900 lbs
    • Deduct 100 lbs under 570 CID
    • Add 100 lbs Non-Conventional
    • Add 150 lbs for over 5” Bore Spacing
    • Add 50 lbs for Symmetrical Heads
    • Deduct 150lbs. for Single Stage Plate
    • Over 5” Bore Spacing Limited to 31×10.5w Tires
    • 5” Bore Spacing and Over Not Allowed Any Controllers

TURBO

  • Small Block Single Turbo – 3050 lbs
    • Turbos Limited to 88mm Size Inlet (Larger Must Be Reduced)
    • Limited to a 33×10.5w Tire or Smaller
  • Small Block Twin – 3250 lbs
    • Inline Valve headed (Stock Valve Angle ONLY!!!)
    • No Raised Runner Heads
    • 76mm Max (No Reducers)
    • Limited to 29.5×10.5W
  • Big Block Single– 3200 lbs
    • Any 88 and smaller turbo *Maximum Tire Size 33×10.5W
  • Big Block Twin– 3350 lbs
    • Any 76 and smaller, No reducers
    • Conventional Valve Angle heads ONLY
    • Maximum Tire size 29.5×10.5W

SUPERCHARGED

  • Small Block – 2950 lbs
    • Prochargers are limited to a 4.5 Maximum Inlet Size
    • F2 limited to a 33w or Smaller Tire
    • 8-71 Allowed Big Tires
  • Big Block – 3150 lbs
    • Prochargers are limited to a 4.5 Maximum Inlet Size *F2 limited to a 33×10.5W or smaller tire
    • 8-71 & 10-71 ADD 100 lbs.
    • 8-71 & 10-71 limited to Maximum tire size 33×10.5W ***BOP Combos Run at Small Block Weights***

NOTE: ** Any combo shown to having a noticeable advantage will be addressed after the race for the next event.

 
 

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