| Junior Rookie |
Age 7 to 10 |
265 lbs. minimum |
- Engine:
- WKA stock Flathead
- WKA stock Animal
- AKRA Box-stock clone (must run AKRA "weiner pipe" & RLV Mini muffler)
- Fuel:
- Flathead, Animal: Methanol
- Clone: Pump gas
- Tires:
- Engine Rules:
- All engines must run 0.225" purple plate
- Flathead, Animal: All restrictor plates must be the new 2011 with APS stamp on them
- Clone: must have AKRA restrictor plate
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| Briggs Sportsman |
Age 8 to 12 |
285 lbs. minimum |
- Engine:
- WKA stock Flathead w/ 0.500 maximum intake restrictor
- WKA stock Animal w/ top hole 0.275", bottom hole 0.325", maximum intake restrictor
- AKRA Box-stock clone w/ 0.550" maximum intake restrictor (must run AKRA "weiner pipe" & RLV mini muffler)
- Fuel:
- Flathead, Animal: Methanol
- Clone: Pump gas
- Tires: Open
- Engine Rules:
- Flathead, Animal: All restrictor plates must be the new 2011 with APS stamp on them
- Clone: Must have AKRA restrictor plate
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| Junior Lite & Heavy |
Age 12 to 15 |
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- Engine:
- WKA Stock flathead w/ 0.575" maximum intake restrictor [310 lbs.]
- AKRA Box-stock clone w/ 0.575" maximum intake restrictor (must run AKRA "weiner pipe" & RLV mini muffler) [310 lbs.]
- Fuel:
- Flathead: Methanol
- Clone: Pump gas
- Tires:
- Engine Rules:
- Flathead, Animal: All restrictor plates must be the new 2011 with APS stamp on them
- Clone: Must have AKRA restrictor plate
|
| Junior Animal |
Age 12 to 15 |
320 lbs. minimum |
- Engine:
- WKA stock Animal w/ 0.505 maximum intake restrictor
- Fuel:
- Tires:
- Engine Rules:
- All restrictor plates must be the new 2011 with APS stamp on them
|
| Junior Sportsman II Champ |
Age 8 to 12 |
315 lbs. minimum |
- Engine:
- WKA stock flathead w/ 0.500" maximum intake restrictor
- AKRA Box-stock clone w/ 0.550" maximum intake restrictor (must run AKRA "Weiner pipe" & RLV mini muffler
- Fuel:
- Flathead: Methanol
- Clone: Pump gas
- Tires:
- Engine Rules:
- Flathead, Animal: All restrictor plates must be the new 2011 with APS stamp on them
- Clone: Must have AKRA restrictor plate
|
| Junior Champ |
Age 12 to 15 |
360 lbs. minimum |
- Engine:
- WKA stock Flathead w/ 0.575" maximum intake restrictor
- AKRA Box-stock clone w/ 0.550" maximum intake restrictor (must run AKRA "weiner pipe" & RLV mini muffler)
- Fuel:
- Flathead: Methanol
- Clone: Pump gas
- Tires:
- Engine Rules:
- Flathead: All restrictor plates must be the new 2011 with APS stamp on them
- Clone: Must have AKRA restrictor plate
|
| Junior Champ Animal |
Age 12 to 15 |
375 lbs. minimum |
- Engine:
- WKA stock Animal w/ 0.505" maximum intake restrictor
- Fuel:
- Tires:
- Engine Rules:
- All restrictor plates must be the new 2011 with APS stamp on them
|
| Senior Briggs |
Age 15 & up |
365 lbs. minimum |
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|
| Clone Stock |
Age 15 & up |
370 lbs. minimum |
- Engine:
- AKRA Box-stock Clone (any header w/ RLV stock muffler)
- Fuel:
- Tires:
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| Senior Animal |
Age 15 & up |
365 lbs. minimum |
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| Senior Champ |
Age 15 & up |
425 lbs. minimum |
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| Senior Champ Animal |
Age 15 & up |
425 lbs. minimum |
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| Kid Champ Karts (exhibitions only) |
Age 5 to 8 |
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- See WKA Rule Book for Specifications
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| Kid Karts (exhibitions only) |
Age 5 to 8 |
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- See WKA Rule Book for Specifications
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| Sportsman / Control Stock / World Formula Microstock |
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- Rules as per the MRL / AMSRA Rule Boook
- Modified Microstock as per MOM Rule Book
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