1. Jr. Sportsman - Ages 12-16. Up to 6.1 cubic inch engine*.

2. Sr. Sportsman - Any single engine* (up to 6.1 cubic inch) on really old kart not close enough in lap times to compete in classes #3 or #4 (Example 1956 - 1963 karts). McCulloch 91, 92 or 93 series of engines can not be run in this class. Single small carburetor, no V-12 or V-16 manifolds allowed. Karts that are too fast will be asked to move to class #3 or #4.

3. Single Engine Rear Mount: Drivers of 55 years or older. Up to 6.1 cubic inch engine* only.

4. Single Engine Rear Mount: up to 6.1 cubic inch engine.*

5. Single Engine Rear Mount: over 6.1 cubic inch engine.*

6. Single Engine Sidewinder: up to 6.1 cubic inch engine.*.

7. Single Engine Sidewinder: over 6.1 cubic inch engine.*

8. Expert Vintage Sidewinder: Division 1, up to 6.1 cubic inch - foreign or American engine. Division 2, over 6.1 cubic inch - foreign or American engine. Each division scored separately.

9. Dual or Triple Engine Rear Mount: American engines any size.

10. Dual Engine Open: foreign or American engines any size, sidewinder or rear mount. 1" or 1.25" rear axles allowed.

*Engine = American manufactured, fan cooled. (McCulloch, West Bend, Clinton, Power Products, etc.)

Note: Horstman DXL or other disc type oil clutch not permitted in classes #1 through 5 and 9.

Brake system upgrades allowed in all classes except Sportsman.

Intent of rules is to stay in keeping with the 'Vintage' condition of these karts.

• All race equipment must be 1976 or older.

• Karts to remain in their original design/state from their model year.
  • Exceptions:
    • Updated wheels, hubs and tires allowed
      • On honor system; no sticky tires allowed. Please stay with tires from the harder side of grip chart (e.g. Dunlop SL1 -SL4 or Bridgestone YHC or harder).

• Updated engine clutches allowed except as stipulated in class listing

• No Axle Clutches Allowed

• No Class weights, no fuel check, no tire check

• Safety Tech will be conducted

• Safety Gear:
  • Helmet; Snell 2000 minimum rated full face required. Helmet Neck Collar required. Leather or suede palm gloves required. Skid resistant jacket (Cordura, Antron Nylon, Leather, etc.) or full suit required.