NEXT EVENT RJ's Home Improvements Night • MON. SEP. 7 • Darlington
Grand National

Grand National / Busch Rule Book

2026 DNQ Rule Book

DNQ Busch Series / Grand National

  • Weight: 375 lbs
  • 5 lbs post-race allowance
  • DNQ sealed engines may run 10 pounds light
  • Tires
  • Left Side: Hoosier Treaded 11 x 5.5 x 6, D30
  • Right Side: Hoosier Treaded 12 x 9 x 6, D50
  • Min Duro = 50
  • At the road course you may run the accepted tires on any side.
  • Engine: Stock 212cc Predator Engine
  • Busch Series karts must have
  • Rotor guard (if run behind the seat)
  • LR bumper cover
  • Same safety / body-panel guidance as uploaded.