The Kart rules for the Tulsa RV Ranch will be the same rules and Shawnee. We believe Clint and Outlaw Motorsports are doing a great job with their series and do not want people to have to change their setups to race with us.
2014-2015 Kart Rules
****ALL CLASSES WILL BE TECH AND MUST RUN A MUFFLER******
250cc Outlaw class
(250cc 2-Stroke)
Single cylinder, two-cycle, single carburetor motorcycle dirt bike or Quad engine not to exceed 265cc displacement. Stock OEM Stroke.
No slipper clutches.
Weight with driver shall be a minimum of 420 pounds.
Age 13 and up, younger drivers may petition to enter the class. It will be on an individual basis, with track promoter for the final decision, based on experience and ability.
Must run a treaded RR tire stamped 50 or 55 and must punch at a durometer reading of 50 or above
(250F 4-Stroke)1. No overbore, some manufacturers have different cylinders A,B,C etc. As long as it falls within the parameters of OEM specs you are ok. 2. Stock stroke 3. No slipper clutches 4. Carb. or fuel injected is legal, single carb only. No porting, no welding of ports, no port angle changes, etc. 6. No lightening of flywheels 7. Gas only, race gas -ok no additives 8. Any pipe allowed as long as it is not a safety issue, (protruding outside of nerf bars etc.) 9. Weight with driver shall be a minimum of 420 pounds. 10. Age 13 and up. Younger drivers may petition to enter the class. It will be on an individual basis, with the track promoter making final decision, based on experience and ability.
11. Must run a treaded RR tire stamped 50 or 55 and must punch at a durometer reading of 50 or above.
Open 500cc Outlaw class
Single cylinder, single carburetor or fuel injected Two-cycle or Four-cycle motorcycle dirt bike or Quad engines that are not to exceed 550cc
No slipper clutches
Weight with driver shall be a minimum of 450 pounds.
Age 15 and up, younger drivers may petition to enter the class. It will be on an individual basis, with the track promoter making the final decision, based on experience and ability.
Must run a treaded RR tire stamped 50 or 55 and must punch at a durometer reading of 50 or above.
Junior – 1
Drivers age 5 to 10yrs
Weight #250 (kart and driver)
AKRA Box Stock 6.5 HP Clone Style OHV Engine must use restrictor plate .425
*IKF/WKA Briggs & Stratton Animal. Must use 3-hole .225” Purple restrictor plate
87 Octane Gas Only
Approved exhaust system- AKRA CLONES, WKA BRIGGS
Stamped steel drum shoe type clutches only
Open Tire (any tire or compound), Wings optional
Junior – 2
Drivers age 7 to 11yrs
Weight #285(kart and driver)
AKRA Box Stock 6.5 HP Clone Style OHV Engine must use restrictor plate .550
*IKF/WKA Briggs & Stratton Animal. Must use 2-hole 275”/325” Blue restrictor plate
87 Octane Gas Only
Approved exhaust system- AKRA CLONES, WKA BRIGGS
Stamped steel drum shoe type clutches only
Open Tire (any tire or compound), Wings optional
Junior – 3
Drivers age 10 to 15yrs
Weight #320(kart and driver)
*AKRA* Box Stock 6.5 HP Clone Style OHV Engine only
Un-restricted (No restrictor required)
87 Octane Gas Only
OPEN EXHAUST (Any exhaust system)
Stamped steel drum shoe type clutches only
Open Tire (any tire or compound), Wings optional
***CLONES ONLY***
Sr Box.
Drivers age 15 and up
Weight #410(kart and driver)
*AKRA* Box Stock 6.5 HP Clone Style OHV Engine only
Un-restricted (No restrictor required)
87 Octane Gas Only
OPEN EXHAUST (Any exhaust system)
Stamped steel drum shoe type clutches only
Open Tire (any tire or compound), Wings optional
***CLONES ONLY***
Modified Outlaws
Drivers age 10 and up
Weight #370(kart and driver)
Any commercial horizontal side shaft centrifugal clutch engine
Any modifications allowed but Engine must have started life no bigger than 212cc
Any fuel, Open exhaust, Disc or shoe clutch
Open Tire (any tire or compound), Wings optional
ALL OF THE ABOVE CLASSES REQUIRE CAGES
Flat karts
This class will follow the Most CURRENT AKRA Box Stock (BS) Engine rules with the
following EXCEPTIONS listed below. In the event the AKRA rules conflict with Shawnee Expo rules, the track promoter will resolve the conflict. Their decision is final. If your clone engine is legal to compete with American Kart Racing Association (AKRA) classes you will be legal to race at the Shawnee Expo.
PRO CLONE DIVISION CLASS EXCEPTIONS
Adult Clone Flat karts
Ages 13 & up
Weight #350 (Kart & Driver)
• Box Stock 6.5 HP Clone Style OHV Engine only
• Un-restricted (No Restrictor required)
• 87 Octane Gas Only
• Open Header (can be manufactured or man-made)
• Open Clutch
• Slick Tires only (no treaded tire) no siping
• No battle bars
• LARGE ZIP-TIE on spark plug wire (with end pointing UP) is recommended
• Must be pull cord started
• No machining or grinding permitted
• Aftermarket Air filter and adapter is allowed
• Timing and Flywheel Key is non-tech
• No Stacked Gaskets in carburetor or between head and carb
Jr Clone Flat karts
Age 10 to 16
Weight #275 (kart & Driver)
• Box Stock 6.5 HP Clone Style OHV Engine only
• Un-restricted (No Restrictor required)
• 87 Octane Gas Only
• Open Header (can be manufactured or man-made)
• Open Clutch
• Slick Tires only (no treaded tire) no siping
• No battle bars
• LARGE ZIP-TIE on spark plug wire (with end pointing UP) is recommended
• Must be pull cord started
• No machining or grinding permitted
• Aftermarket Air filter and adapter is allowed
• Timing and Flywheel Key is non-tech
No Stacked Gaskets in carburetor or between head and carb
Modified Flat karts
Drivers age 10 and up
Weight #275 (kart and driver)
Any commercial horizontal side shaft centrifugal clutch engine
LARGE ZIP-TIE on spark plug wire (with end pointing UP) is recommended
Any modifications allowed but Engine must have started life no bigger than 212cc
Any fuel, Open exhaust, Disc or shoe clutch
Open Tire (any tire or compound)
General Kart Rules & Safety Equipment for ALL KART
CLASSES
Frames
1. Any production/purpose built racing chassis. Motor must be mounted beside driver.
2. Frames must be constructed of metal. No aluminum or conduit tubing.
3. All karts will be outfitted with Roll cage. Roll cage must be a minimum four-point either bolted or welded to frame. does not apply to flat karts
4. Minimum of 3" head clearance to roll cage.
5. Minimum four-point seat belts bolted to frame or roll cage.
6. Front and rear bumpers are required. Bumpers must be of tubular design. No flat style allowed. Maximum width of rear bumper may be no wider than tire sidewall to sidewall width. Maximum width of front bumper may be no wider than frame rails. Lowest rail of Bumpers may be no higher than 4" from ground.
7. Nerf bars are required. Nerf bars may not protrude past tire sidewall.
8. All karts must have adequate protection over driver’s feet.
9. Wings on roof or front allowed. Top wing sides must stay within 3” from outer most edge of kart No sharp edges.
10. All karts must run chain guard – no exceptions.
Weights
1. All weights added to kart, must be bolted to point of attachment with adequate fastener.
2. All weights must be painted white, so they can be seen if they fall from kart
onto track during race.
3. All weights should have kart number on them for identification.
DRIVERS
1. All drivers must wear a DOT approved, Full Face safety helmet with complete eye protection.
2. All drivers are required to wear long sleeves and long pants. A drivers suit is highly recommended but not required for pump gasoline. Drivers suit is required for alcohol fuel.
3. All drivers will wear an approved neck brace and arm restraints with no loose ends or they will NOT race.
4. Gloves are highly recommended.
Younger drivers may petition to enter a class. It will be on
an individual basis, with track promoter making the final
decision, based on experience and ability.
Tires & Wheels Any 5" or 6" diameter steel or aluminum wheels.
Brakes
Mechanical or Hydraulic disc is recommended. No scrubber style brakes. Must stop kart in a safe distance.