F100

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For further rules and more detailed explanations of the rules listed below, please visit the F100 Rule Supplement

FC1

(Formerly F100 Cadet Novice)

(Non-points developmental class)

  • Requires level 1 license
  • Engine @ min. lbs:
    • Yamaha KT-100
      • KPV/HPV/RLV 1 with WA55b carburetor @ 230 lbs
      • 4 hole can with WA55b carburetor @ 215 lbs
    • KPV/HPV
      • KPV/HPV/RLV 1 with WA55b carburetor @ 240 lbs
    • Comer K80
      • Unrestricted @ 200 lbs
      • Restricted @ 185 lbs
    • Other 100cc piston port engines please email F100 at formula100kartingseries@gmail.com, for rules and technical specifications. Other 100cc piston port engines, such as a TKM BT82, ARC 100cc or PRD RK100, are allowed in level 1 classes.
  • Chassis
    • Cadet, Junior or full size kart chassis only
      • No kid kart chassis allowed
    • Must conform to NKA Trakbook chassis rules
  • Tires
    • Approved tires (see section 6a for a list of approved tires)
      • 4.5 or 4.6/10.0x5 front and rear
  • Clutch
    • KT-100
      • Open, axle or crankshaft clutch
    • KPV/HPV
      • Horstman EXPD or IAME spec clutch
        • 5500 rpm maximum stall speed
          • Subject to clutch stall speed test
    • Comer K80
      • Stock clutch as supplied from manufacturer
  • Exhaust
    • KT-100
      • 4 hole can (RLV 7548 or 7540) with Walbro WA55b carburetor
      • KPV 1 flex length 11.875” to 12.375” with Walbro WA55b carburetor, RLV 9110 header required
      • HPV 1 flex length 12” to 12.5” with Walbro WA55b carburetor, RLV 9110 header required
      • RLV 1 flex length with 9.375” to 9.875” with Walbro WA55b carburetor, RLV 9110 header required
    • KPV/HPV
      • KPV 1 flex length 11.875” to 12.375” with Walbro WA55b carburetor
      • HPV 1 flex length 12” to 12.5” with Walbro WA55b carburetor
      • RLV 1 flex length 9.375” to 9.875” with Walbro WA55b carburetor
    • Comer K80
      • Stock exhaust as supplied from manufacturer
  • Fuel
    • Please see section 3A

FC2

(Formerly F100 Cadet)

  • Invitation/approved ONLY, requires level 2 license
  • Engine @ min. lbs:
    • Yamaha KT-100
      • KPV/HPV/RLV 1 with WA55b carburetor @ 230 lbs
    • KPV/HPV
      • KPV/HPV/RLV 1 with WA55b carburetor @ 240 lbs
  • Chassis
    • Cadet, Junior or full size kart chassis only
      • No kid kart chassis allowed
    • Must conform to NKA Trakbook chassis rules
  • Tires
    • Bridgestone YLC, YKC or YHC
      • 4.5/10.0x5 front and rear
  • Clutch
    • KT-100
      • Open, crankshaft clutch only
    • KPV/HPV
      • Horstman EXPD or IAME spec clutch
        • 5500 rpm maximum stall speed
          • Subject to clutch stall speed test
  • Exhaust
    • KT-100
      • KPV 1 flex length 11.875” to 12.375” with Walbro WA55b carburetor, RLV 9110 header required
      • HPV 1 flex length 12” to 12.5” with Walbro WA55b carburetor, RLV 9110 header required
      • RLV 1 flex length with 9.375” to 9.875” with Walbro WA55b carburetor, RLV 9110 header required
    • KPV/HPV
      • KPV 1 flex length 11.875” to 12.375” with Walbro WA55b carburetor
      • HPV 1 flex length 12” to 12.5” with Walbro WA55b carburetor
      • RLV 1 flex length 9.375” to 9.875” with Walbro WA55b carburetor
  • Fuel
    • Please see section 3A