Hey guys, i just got a garden tractor from my Ag teacher a couple weeks ago and been thinking about what to do with it. So this i were iam at now.
Its a belt drive tractor with a believe a Pearless tranny. It has a Briggs 12hp Flathead thats it decent shape.
Iam wanting to run it in the Stock class:
2008 STOCK CLASS RULES
General rules for all classes plus the following:
1. All drivers must be six (6) years old or older. Must be able to operate tractor according to General
Rule #1. Drivers 10 & under must wear a helmet when pulling.
2. All tractors must have stock OEM type engines. Engine must match tractor frame. Transmission
case must match tractor frame. Wheelbase cannot be altered. This will allow up to 16 horsepower
engines in narrow, wide & spread frame tractors. Transmission, front axle and engine must be in
original location.
3. All engines to have working governors. Engine cannot exceed 3800 RPM at any time. RPM’s may
be checked before pulling. All throttles must have a positive stop and all foot throttles must have a
positive stop under pedal.
4. All engines must be stock unmodified OEM parts. Bore can be up to +.030 oversized. No porting
or polishing allowed. All cams and carburetors must be OEM specification and cannot be altered.
Heads must have inner and outer gasket seal surface. Balancing is not allowed. No more than 3/16
spacer on carburetor mount. Only OEM stock and OEM style inserted rods are allowed. No
modifications to the outer portion of the exhaust port. Muffler threads must be present and if a flange
and pipe are used, the stack may not extend past the flange into the block. CIGTP considers a stock
Kohler camshaft to measure .323†lift and 217 degrees duration on both intake and exhaust lobes, with
valve lash set to zero. The stock class accepts specifications for the K-series Kohler as the unofficial
standard for engines, which are common to most older garden tractors. If the participant is to run
something other than a K-series Kohler or a chassis which these engines are not common to, participant
must present documentation for factory stock specifications, such as bore, stroke, valve size,
carburetion and factory horsepower rating for engine model number.
5. Flathead in block valve type motors only. NO overhead valve type motors allowed.
6. Maximum tire size: 23x10.5x12 bar tires or original size turf tires. Maximum drawbar height is
fourteen (14) inches.
7. Must run pump gas only. Maximum of 750 specific gravity. NO alcohol or additives.
8. All tractors must have reverse gears and be able to back to the sled using reverse gear - tractors may be
pushed back to the sled.
9. 800 and 875 pound class, 10 horsepower and under, engine manufacturer rated.
10. 950 pound class, 12 horsepower and under, engine manufacturer rated.
11. 1050 pound class, 14 horsepower and under, engine manufacturer rated.
12. 1150 pound class, 20 horsepower and under, engine manufacturer rated.
13. 1250 pound class, 20 horsepower and under, engine manufacturer rated.
Will a belt drive tractor be able to compete in this class, or do i need to sell it and buy a Wheelhorse or older tractor?
Thanks
Blake
P.S. Where can i find a Spec sheet a 12hp Briggs Flathead so i can send it in to the race director?