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  • Home
  • Rulebook
    • 4" Nascar Rules
    • Nascar Hard Body Rules
    • Crate Late Model Rules
    • Bracket Drag Racing
    • H&R Racing Truck Rules
    • JK Boxstock Rules
    • Womp Rules
    • 4.5" Trucks Rules
    • 4.5" Scale Nascar
    • 4.5" Grand National
    • 4" Dirt Late Models
    • Pro Bar Sprint Rules
    • Womp Dirt Late Models
    • Asphalt Modified Rules
  • Class List

ASPHALT modified rules

Asphalt Modified Rules

  1. Bodies: Must use approved Paper-type modified bodies from Reality Raceway, NY Modifieds, or Jer’s Bodies. No modifications allowed. 
    1. All panels must be used that come with the body kit. 
    2. Bodies must be cut on the lines and stapled together as intended. 
    3. Bodies must be mounted in the intended place and may not be raked.
    4.  No holes cut in body to release air  
  2.  Chassis: Must use JK2600 Brass Modified Chassis. 
    1. Chassis may not be cut or drilled in any way. 
    2. Chassis may be braced 
    3. Car must weigh at least 145g 
    4. All bumpers, bars, and chassis reinforcement must be sufficiently mounted in place and may not be actively mobile.
    5.  All bumpers must be a minimum of 0.125” clear of track surface.
    6.  All cars must have a Front Bumper, Rear Bumper, and Side Bars. 
    7. Minimum .062” dia. tubing or rod for bumpers and bars. 
      1. Front Bumper must connect to the chassis in 4 locations. 
      2. Side bars must have full double-rear side-bars as a Modified would at the racetrack. 
      3. Rear Bumper must have rectangular tubing and at least two bars connecting on either side of the rectangular tubing as support. 
      4. Diagrams of intended bumper design on the back of this sheet.
    8.  Any guide flag allowed 
    9. Any oilites allowed, no ball bearings. 
    10. Must use ⅛” front and rear solid axles, no hollow axles permitted. 
    11. Pro-Track Daytona Stocker tires only. Must stay full width and must have the stock Pro-Track white lettering on sidewalls.
    12.  Must use the short brass Womp spacer (0.125”) on the left side and the long brass Womp spacer (0.210”) on the right side. 
  3.  Motor: H&R Hawk 18,000 RPM 
    1. Motor Motor may not be modified or opened up 
    2. Must use 48p 8t Pinion and 27t Crown Gear
    3.  May use any brand Pinion or Crown Gear 
    4. No metal crown gears  
  4. Clearance: .047” 
    1. Car must pass .047” at the rear of the car. 
    2. Minimum front tire diameter: .775”
    3.  Minimum rear tire diameter: .790” 
    4. If tires are at minimum diameter but do not pass clearance, the car will be deemed illegal and will need replacement rear tires. 

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