Manufacturers Cup Series

2021 Schedule - Three Rounds, No Drops

Daytona Kart Week

Daytona Beach, FL

December 27-30, 2020

WKA Karting Challenge

Concord, NC

April 15-18, 2021

WKA Grand Nationals

New Castle, IN

September 17-19, 2021

Class Structure

  • Age: 5-7 (attained)
  • Numbers: 00-99
  • Engine: Comer C51 only
  • Fuel: Spec – 87 Octane
  • Weight: 150 lbs.
  • Tires: Vega VAH Red 460-5 – New or used tires can be run (Kid Kart Wheel Diameter 33 ¾ Max)
  • Gear Ratio: 10/89
  • Notes: See Section 900 for chassis and bodywork specifications
  • Age: 7-10
  • Numbers: 00-99
  • Engine: Vortex Micro ROK with manufacturer-supplied restricted exhaust header
  • Carburetor: Dellorto
  • Weight: 230 lbs.
  • Tires: Vega VAH Red 460-5
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 7-10
  • Numbers: 00-99
  • Engine: IAME Mini Swift engine with manufacturer-supplied exhaust
  • Carburetor: Tillotson HW-31A
  • Weight: 235 lbs.
  • Tires: Vega VAH Red 460-5
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 8-12
  • Numbers: 100-199
  • Engine: Vortex Mini ROK with manufacturer-supplied exhaust
  • Carburetor: Dellorto
  • Weight: 245 lbs.
  • Tires: Vega VAH Red 460-5
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 8-12
  • Numbers: 100-199
  • Engine: IAME Mini Swift engine with manufacturer-supplied exhaust
  • Carburetor: Tillotson HW-31A
  • Weight: 245 lbs.
  • Tires: Vega VAH Red 460-5
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 11-15 (attained)
  • Numbers: 800-899
  • Engine: IAME KA100 w/27mm header / Vortex ROK VLR
  • Carburetor: As supplied by the manufacturer
  • Weight: 320 lbs.
  • Tires: Vega XH3 Green 460-5/710-5
  • Timing: TBD
  • Notes: (1) Option to use three front and three rears for competition. (2) Tires must be new to start each event.
  • Age: 12-15
  • Numbers: 700-799
  • Engine: IAME X30 with 26mm exhaust header
  • Carburetor: As supplied by the manufacturer
  • Weight: 330 lbs.
  • Tires: Vega XH3 Green 460-5/710 – 1 set per event
  • Notes: (1) Airbox required. (2) Minimum exhaust length (as raced) is 16 3⁄4” as measured from the back side of the header flange, around the right side of the header, connector and pipe to the first weld at the end of the divergent cone. new IAME X30 ignition, airbox and main bearings are all improvements to the engine platform, and these will be at the option of the team and competitor for the balance of the 2021. The NGK BR10EG and B10EG spark plug will be allowed for the balance of the 2021 season.
  • Age: 7-12
  • Numbers: 400-499
  • Engine: Briggs LO206 Sealed Engine
  • Exhaust: RLV #5506 or #5507
  • Carburetor: As supplied by the manufacturer with Locking Cap #555726
  • Slide: Briggs Green .490 Part Number #555740
  • Fuel: Spec – 87 Octane
  • Weight: 265lbs.
  • Tires: Vega VAH Red 460-5
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 12-15
  • Numbers: 200-299
  • Engine: Briggs LO206 Sealed Engine
  • Exhaust: RLV #5506 or #5507
  • Carburetor: As supplied by the manufacturer with Locking Cap #555726
  • Slide: Briggs Gold Slide .590 Part Number 555741
  • Fuel: Spec – 87 Octane
  • Weight: 320lbs.
  • Tires: Vega VAH Red 460-5/600-5 (Max rear wheel width 212mm)
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 15+
  • Numbers: 500-599
  • Engine: Briggs LO206 Sealed Engine
  • Exhaust: RLV #5506 or #5507
  • Carburetor: As supplied by the manufacturer
  • Slide: Briggs Black Slide
  • Fuel: Spec – 87 Octane
  • Weight: 370lbs.
  • Tires: Vega VAH Red 460-5/600-5 (Max rear wheel width 212mm)
  • Notes: Tires must be new to start each event – 1 set per event
  • Age: 5-7
  • Numbers: TBA
  • Engine: Briggs and Stratton 206 Engine
  • Clutch: MaxTorque Part#555727 only
  • Gear Ratio: 17/57
  • Exhaust: RLV #5507 Pipe
  • Carburetor: As supplied by the manufacturer
  • Slide: Stock Black Junior Slide (Part#555728)
  • Fuel: Spec – 87 Octane
  • Weight: Kid Kart Chassis: 800mm Under 200 lbs, kart and driver
    Cadet Chassis: 900mm over 215 lbs, kart and driver
  • Tires: Vega VAH 4.60-5. Max Tire Circumference: 33.75” (at ambient temp.) 
  • Notes: CIK style bodywork and seats only 
  • Age: 15+
  • Numbers: 900-999
  • Engine: IAME KA100 / Vortex ROK VLR
  • Carburetor: As supplied by the manufacturer
  • Weight: 360 lbs.
  • Tires: Vega XH3 Green 460-5/710-5
  • Timing: TBD
  • Notes: (1) Option to use three front and three rears for competition. (2) Tires must be new to start each event.
  • Age: 15+
  • Numbers: 300-399
  • Engine: IAME X30
  • Carburetor: As supplied by the manufacturer
  • Weight: 365lbs.
  • Tires: Vega XH3 Green 460-5/710 – 1 set per event
  • Notes: (1) Airbox required. (2) Minimum exhaust length (as raced) is 16 3⁄4” as measured from the back side of the header flange, around the right side of the header, connector and pipe to the first weld at the end of the divergent cone. new IAME X30 ignition, airbox and main bearings are all improvements to the engine platform, and these will be at the option of the team and competitor for the balance of the 2021. The NGK BR10EG and B10EG spark plug will be allowed for the balance of the 2021 season.