President: Jim Hull 920-539-0055
Vice President: Travis Christoffersen 920-960-8835
Treasurer: Brenda Vis 920-296-9602 Printable Version
Secretary: Chrissy Duscheck 920-960-0577
Board of Directors:
Gregg Gaedtke 920-323-2231
Jason Bittner 920-948-2586
Jeff Patzlaff 920-266-6111
Dave Petersohn 920-973-1458
Event Coordinators:
Lowell Vis 920-296-3366
Jim and Donna Hull 920-539-0055
For Membership information call 920-296-9602 or see Membership entry on this page.
The 2024 W.G.T.P. Inc. rules are designed to provide for the orderly conduct of the Motorsport of garden tractor pulling events and to reduce the risk of injury to both the participants and spectators during such events. It is ultimately the obligation of each participant to ensure that his/her conduct and equipment comply with all applicable W.G.T.P. Inc. rules and regulations, as they may be amended from time to time. No express or implied warranty of safety shall result from the publication or compliance with, these rules. These are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to pullers, spectators, or others.
WEIGHT CLASSES:
1000# STOCK CHILD
1050# HEAVY PRO MOD 1300# HEAVY SUPER MOD
1050# STOCK ADULT 1050# OPEN SUPER STOCK 1400# UNLIMITED OUTLAW
1050# STK TWIN 21-25HP 1050# LIGHT SUPER MOD 1450# HEAVY UNLIMITED OUTLAW
1000# LIGHT PRO MOD 1100# OUTLAW
OPTIONAL CLASSES: These classes will be run only when listed on the schedule.
PST (NQS Rules), 1050# 25HP IMPROVED, 1050# 12 HP SA, 1050# Pro-Stock
Rules will be available on the website only.
STOCK- (Child/Adult)
1. Motor Limitations:
a. A stock garden tractor type engine, with working governor. Maximum no-load RPM's:10 Hp. and under -
4200 RPM, under 16 Hp. - 4000 RPM, 16 Hp. - 3700 RPM, over 16 Hp - 3300 RPM. Diesel engines must run
the lesser of factory RPM or as listed. W.G.T.P INC. Board of Directors retains the right to review and update
RPM limitations in each pulling season. To be checked by the Tech. Inspector with the club tachometer.
Straight pipes are allowed, but must point straight up. All stock tractors must have stock shielding or better.
b. Maximum engine size is 20 Hp. Engine must be completely stock except for the following
modifications:
* A normal factory rebuild, consisting of ground valves, cut seats, and bore engines to maximum and
oversize cut crank for undersize rod is allowed. Maximum .030" of piston pop-out above cylinder bore
is allowed.
* Diesel or liquid cooled engines will be permitted.
* Aftermarket parts allowed but must maintain stock specifications per model & size engine.
c. Tractor must have air cleaner, no velocity stack, and no radius inlet.
d. "Stock Adult" or "Stock Child" limited to single cyl up to 18HP or Twin cyl up to include 20HP.
2.Minimum hole for clevis is 5/8”.
3.Maximum drawbar height determined by tire type below:
AG lug type tires: 13” Max Drawbar height.
Max tire size is 26”x12”x12” or 15” (Max rim width 10.5”), 16” (Max rim diam. 9.9”), 24” (Max rim diam- 8.5”).
Pro Pulling tires: 12” Max Drawbar height. Maximum tire size 26”x12”x12”
*WGTP Board retains the right to amend this rule after 3 pulls in the 2024 season.
4. Frame must be OEM specified stock but may be moved to a maximum wheel base length of 56".
(See General Rule #26)
5 Must retain all OEM shielding or better. See General Rules.
6. Engines must run on gasoline or diesel only.
7. Deadman's throttle and engine kill switch must be on all tractors that run more than once per pulling season. Clutch
switches are required on all electric start tractors.
8. Wheelie bars are mandatory and seats with a minimum 3" backrest are mandatory.
9. Local pullers will be given one pull to meet the rules. Exceptions for stock tractors that do not meet rules will be
decided by the WGTP Board.
10. Any stock tractor may run any other class during the course of a season. They must run by stock class rules, and
after that they must meet all rules for the class(es) they are running.
11. All drivers must wear a helmet, long pants, and long sleeved shirt. Nylon pants, shirts, or jackets are not allowed.
12. Pullers must be 5 years of age to run in the Stock class and must demonstrate the ability to safely operate the
tractor (including engaging and disengaging the clutch) board member. Minors must have parent or guardian
written permission.
13. The Stock class is considered one class. The owner must decide if the tractor will be registered under Child or Adult.
The tractor cannot be entered in both. A tractor registered under Adult may have a child operator but will compete as
an Adult. No Adult may register as a child. Points and prizes will be awarded separately by age group: Children ages
5 to 12 (as of Jan. 1st) and Adults age 13 and up.
14. All rules under section: General rules, Track rules, and Teardown and Penalties will apply to the Stock class.
STOCK (21-25HP TWIN)
1.All Rules listed above for Stock Classes will apply to this class except for the following:
A. Maximum 25HP single engine.
B. Max RPM 4000
C. Must use only OEM MANUFACTURED PARTS SPECIFIC TO THE MODEL & SIZE ENGINE.
D.Maximum hitch height = 13” (regardless of tire style)
E. All persons 12 years and older may pull in the Stock (21-25HP) class. Minors must have parent or guardian
written permission. Drivers from Child Stock under 10 yrs old may pull in this class but only the weight may be
changed, the RPM setting for the tractor must remain as it was for Child Stock. . Drivers must demonstrate their
ability to safely operate a tractor to a board member.
25HP IMPROVED TWIN - (Option Class)
1. Maximum 25HP, Single or Twin Cyl, No multi-engines allowed.
2. Max RPM 4250 (WGTP Board retains the right to review/revise the rules for Single Cyl engines
during the 2021 season.)
3. Factory stock, commercially available garden tractor with cast block engine. Engine, chassis, and sheet metal must
maintain stock appearance.
4. Frame can be modified for engine swap. (See General Rule #26)
5.Must use only OEM AVAILABLE UNALTERED PARTS for engine manufacturer.
6. Maximum bore size is .030 over manufacturer’s standard specifications.
7. No welding or modifying of block or cylinder head. Cylinder head must maintain stock combustion chamber lip and
head gasket. (Weld for repair may be done with WGTP Board approval.)
8. No fabricated manifolds, carburetor stand offs, velocity stacks, or spacers allowed.
9. Carburetor must be stock, unaltered and unpolished. Choke butterfly and shaft can be removed. Air restricting
venture must not exceed stock size for model, horsepower, and configuration. No gas fuel injection.
10. Billet steel or aluminum flywheel are allowed. No welding or machining of cast flywheels.
11. Gasoline only.
12. Modifications to clutch, drive line, and transaxle assembly are allowed.
13. Deadman’s throttle is required.
14. Maximum tire size is 26x12x12. Pro Pulling tires are allowed.
15. Maximum drawbar height is 13 inches.
16. All rules under section: General rules, Track rules, and Teardown and Penalties will apply to the Stock class.
17. All persons 12 years and older may pull in the 25HP Improved class. Minors must have parent or guardian
written permission. Drivers must demonstrate their ability to safely operate a tractor to a board member.
12HP Stock Altered – (Option Class)
1. Single cylinder, flat head, four stroke, must maintain factory deck height. Stock crank, cam, valve and valve locations.
2. May have any head.
3. Gas or Alcohol allowed.
4. Engines may be bored .030 overstock.
5. Stock Stroke, Cam: .330” of lift
6. Must have steel flywheel
7. Stock appearing carburetor (1.200 maximum). Maximum one inch carburetor standoff or ram tube
8. Stock fin block. Kohler block must maintain a cast iron intake runner
9. No external modification to block, must maintain factory appearance.
10. All heads must be strapped with a permanently mounted metal bar.
11. Shielding: 1/8” steel ¼” aluminum. Shielding will run from the bottom of the cylinder to the bottom of the crankcase on the front
12. Tires not to exceed 26X12X12. Pro pulling tires are allowed.
13. All rules under section: General rules, Track rules, and Teardown and Penalties will apply to this class.
14. All persons 10 years and older may pull in the 12HP Stock Altered. Minors must have parent or guardian written
permission.
LIGHT PRO MOD
1. Engine Limitations:
a. Limit one, 16Hp, single cylinder, 4-cycle, air cooled garden tractor manufactured engine. No add-on cylinder
jugs, diesels, overhead cam, or overhead valve engines are permitted.
b. Flathead engines only; no add-on overhead valve heads.
c. No stroker cranks.
d. Engines with a maximum bore of 3.812", maximum stroke of 3.250" will be limited to one stock appearing
butterfly type carb. with one barrel only, maximum 1.200" venturi.
e. Engines with maximum bore of 3.600', maximum stroke - 3.250" will be limited to one 44mm carb.
f. 32 cubic inch engines or smaller will allowed to run any type or size carb., and block; with any combination of
bore or stroke; and may run fuel injection.
g.Aftermarket Non-Finned Blocks will be allowed but must maintain Kohler stock locations for deck height, crank,
and cam. Stock head bolt pattern must be maintained Must maintain stock production (4 Deg)
Kohler lifter and valve angle +/- 1 Deg relative to the deck. Stock head gasket must fit over studs and bolts. WGTP Tech Inspectors will use a Stock template to determine legality if questioned.
h. Tractors meeting NQS Stock Altered rules will be allowed. NQS Rules available upon request.(1050# weight limit)
i. Maximum .020" over bore will be allowed for rebuilds.
j. Gas or alcohol ony
2. Production pulling tires are allowed.
3. Tractors meeting NQS Pro-Stock Rules allowed at a max weight of 950 lbs 2023 WGTP Board may review for hitch
height handi-cap.
4. All rules under sections: General rules, Track rules, and Penalty and Teardown will apply to the Light Pro Mod class.
5. All persons 12 years and older may pull in the Light Pro Mod class. Minors must have parent or guardian written
permission. Drivers must demonstrate their ability to safely operate a tractor to a board member.
HEAVY PRO MOD
1. Engine Limitations:
a. Limit one, 18 Hp, 1 or 2 cylinder, 4-cycle, air cooled garden tractor type manufactured engine. No add-on
cylinder jugs, diesels, or overhead cam engines permitted.
b. Flathead engine limitations:
* Gas or alcohol ony
* Maximum stroke - 3.250".
* Engines with maximum bore of 3.812", maximum stroke - 3.250" will be limited to one stock appearing butterfly
type carb. with one barrel only, maximum 1.200" venturi.
* Engines with maximum bore of 3.600, maximum stroke of 3.250" will be limited to one 44mm carb. or two
1.200" venturi.
* Aftermarket Non-Finned Blocks will be allowed but must maintain Kohler stock locations for deck height, crank,
and cam. Stock head bolt pattern must be maintained Must maintain stock production (4 Deg)
Kohler lifter and valve angle +/- 1 Deg relative to the deck. Stock head gasket must fit over studs and bolts. WGTP Tech Inspectors will use a Stock template to determine legality if questioned.
c. Overhead valve engine limitations:
• Twin cylinder-liquid cooled maximum 38.5 cubic inches. Must be available in an OEM produced garden
tractor. Maximum .0303" over standard bore or 38.5 cubic inch maximum (whichever is less). Stock stroke
crankshaft. No piston pop up out of the top of the cylinder bore (flush top pistons). Stock carbs for engine
make and size with 1.200" venturi maximum.
* Maximum 18Hp single cylinder. Limited to stock stroke, maximum 0.060" over bore.
* Limited to gas or alcohol only
* Limited to a drawbar height of 12" and maximum weight of 975 lbs (W.G.T.P. board retains the right to change this ruling)
d. 32 cubic inch engines or smaller are allowed to run with any type or size carb. and block; with any
combination of bore or stroke; and may run fuel injection.
e. All engines will be allowed to run billet heads but overhead valve engines must retain stock OEM valves and
location for engine configuration and horsepower rating.
f. Tractors meeting NQS Stock Altered rules will be allowed. NQS Rules available upon request.(1050# weight limit)
2. Maximum tire size is 26 x 12 x 12, any rim width. Manufacturer's markings must be on tire.
3. Tractors meeting NQS Pro-Stock Rules allowed at a max weight of 950 lbs 2024 WGTP Board may review for hitch height handi-cap.
3. All rules under sections: General rules, Track rules, and Penalty and Teardown will apply to the Heavy Pro Mod class.
4. Persons 12 years and older may pull in the Heavy Pro Mod class. All minors must have parent or guardian written
permission. Drivers must demonstrate their ability to safely operate a tractor to a board member.
PRO STOCK - (Option Class)
1. Engine Limitations:
a. Limit one, 1 or 2 cylinder, 4-cycle, air cooled garden tractor type manufactured or configured block engine,
flathead only.
b. Maximum cubic inches: 50.5 cu. in. for single cylinder, 56.0 cu. in. total both cylinders for twins.
c. A stock appearing Kohler type carburetor must be used if other than stock for the model engine being
used. Stand off pipe or ram tubes permitted. Choke may be removed. Single carburetor only. Air restricting
venturi must be in stock position or carburetor not to be larger than 1.200" diameter. Air controlled by butterfly
in stock position in carburetor, no slides, no injection, naturally aspirated only. No air entering after 1.200"
restriction.
d. Kohler based single cylinder engines must maintain stock Kohler K341 deck height, cam and crank locations.
Stock head bolt pattern must be maintained.
e. Gas or alcohol only
2. WGTP Board retains the right to change carb. limitations on 50.6 to 56.0 cu. in. engines.
3. Maximum tire size is 26 x 12 x 12, any rim width. Manufacturer's markings must be on tire.
4. All rules under sections: General rules, Track rules, and Penalty and Teardown will apply to the Pro Stock class.
5. Persons 12 years and older may pull in the Pro Stock class. All minors must have parent or guardian written
permission. Drivers must demonstrate their ability to safely operate a tractor to a board member.
OPEN SUPER STOCK
1. Engine Limitations:
a. Limit one, 1 or 2 cylinder, 4-cycle, air cooled garden tractor type manufactured or configured engine.
b. Maximum cubic inches:
Single flatheads – 50.5”, (Note:GF-MH)
Overhead valve (single & opposed twin) - 56.5",
Overhead valve V-Twin - 46" max (May run any size single barrel carb)
Overhead valve V-Twin - 50.5" max (Limited to 1.2 single carb)
Flathead Twins - 70" (total of both cylinders),
Overhead Cam - 50.5" Valves must be straight up & down (no hemi style).
c. Allowed: After market blocks, all must maintain stock deck height, cam and crank locations. Head bolt
patterns may be altered.
d. Single cylinder overhead valve and Flatheads only will be allowed deck height changes.
e. Single overhead cam engines only will be allowed to change cam location.
f. Maximum of Nitro Methane: .880 specific gravity (Single Flat Heads – No maximum limit on Nitro but limited to 12” drawbar)
g. Overhead valve engines: Alcohol only with maximum specific gravity of .800.
h. Single cylinder overhead valve and Flatheads only will be allowed Fuel injection.
i. No turbo or superchargers allowed.
2. Maximum tire size is 26 x 12 x 12, any rim width. Manufacturer's markings must be on tire.
WGTP board retains the right to review the handicaps in this class.
3. All rules under sections: General rules, Track rules, and Penalty and Teardown will apply to the Open Super Stock
class.
4. Persons 12 years and older may pull in the Open Super Stock class. All minors must have parent or guardian written
permission. Drivers must demonstrate their ability to safely operate a tractor to a board member.
LT SUPER MOD
1.Engine Limitations:
a.Maximum engine specifications:850 cc - 4-cycle600cc - 2-cycle
Tractors meeting the WGTP Open Super Stock Garden Tractor rules will be allowed.
b. Compact Diesels Allowed:
1. Factory 3 Cylinder air or liquid cooled diesels (not cut down 4 cylinder engines) 75 cubic inch limit.
2. Water injection permitted, water or water soluble oil mixture only.
3. Stock head for engine make and model, no external welding except for repair.
4. No overhead cam engines
5. Stock OEM intake and exhaust manifold. Porting and Polishing allowed-no tube manifolds.
6. Engine block model and serial numbers must be visible.
7. Stock or Component frame with stock appearing garden, com-pact or farm tractor sheet metal with full
engine shields (side shields must be minimum of 1/16" steel or aluminum). Tube chassis must be
covered with sheet metal.
8. No billet fuel injector pumps or electronic fuel injection.
9. Limited to one (1) turbo, no size restriction.
10. No intercoolers or ice boxes.
11. Kill switch must shut off electric fuel pump and shut air off on compressor side of turbo.
12. Exhaust "L" of turbo must have minimum of 5/16" cross in elbow with exhaust to discharge vertically.
13. No propane or nitrous of any kind.
14. Must run 1/4" cable around oil pan over top of valve cover in between #1 and #2 cylinder in a complete
circle connected with cable clamps (minimum of two clamps).
15. Steel flywheel required with flywheel inspection hole in bell housing.
16. Flywheel, front cast pulleys and clutch must be shielded 360 degrees with 1/8" steel or 3/16" aluminum.
SFI approved scatter blanket also acceptable.
17. No belt driven cooling fans allowed, must be electric fans.
18. WGTP Board retains the right to amend the rules for Compact Diesels during the 2024 season.
c. No turbo or superchargers allowed except as noted in 1b.
d. Maximum of 1 barrel of carburation per cylinder. Gas or alcohol is allowed. Fuel injection is allowed.
e. Engines must be naturally aspirated except for Rule c. above.
f. Machines weighting up to 1100#will be allowed but are limited to 12 inch drawbar height. WGTP Board
retains he right to amend this rule after 3 pulls in the 2024 season.
HVY SUPER MOD
1. Engine Limitations:
a - One 4-cycle engine, 1500cc max. with maximum of 6 cylinders.
b - Marine or automotive engines will be limited to 4-cycle, maximum 4 cylinders, 2 valves per cylinder.
c - One 2-cycle engine, 800cc 3-cylinder maximum.
d - 2-cycle engines 820 cc to 1000cc will be limited to 12 inch drawbar height.
e - Multiple Engines: Maximum (2) Twin cylinder engines, naturally aspirated, 1300cc 4 cylinders total
f - 4 cyl (factory turbo) motorcycle engines up to 750cc max will be allowed. Aftermarket turbocharger will be allowed,
but must maintain a maximum inlet ID of 1.375” and maximum outlet ID of 1.750” on the turbocharger housing.
To be measured at the face of the wheel. Restricting the inlet pipe upstream of the turbocharger does not meet this
rule. Must be shielded per Unlimited Outlaw rules section.
g - CC limits will be calculated with a 2% allowance
h - Maximum of 1 barrel of carburetion per cylinder. Gas or alcohol is allowed. Fuel injection is allowed.
i - Engines must be naturally aspirated except for Rule f. above.
LT & HVY SUPER MOD
1. Maximum tire size is 26 X 12 X 12, any rim width. Manufacturer’s markings must be on tire.
2. Maximum tractor length is 8 feet, measured from the center of the rear axle to the furthermost point forward. Maximum
width is 6 feet.
3. Front wheels must track rear wheels.
4. Any type of rearend is allowed. Diesels see rules above.
5. All tractors must have fenders. The fenders must extend horizontally, over the tire, 4” from the vertical of the inside of
the tire, to keep the driver away from the tires. All tractors must have a strong seat with 3” or more of backrest.
6. All other rules under sections: General rules, Track rules, and Penalty and Teardown apply to the Super Mod classes.
7. Persons 14 or older may pull in the Super Mod class. Drivers must demonstrate their ability to safely operate the
tractor to a board member. Minors must have parent or guardian written permission. Exception: Persons operating
an ATV styled machine must be 18 or older. Driver must be 16 or older to compete with blower or turbocharger.
OUTLAW
1. Engine Limitations:
a Limit one engine, no marine or automotive engines.
b. Maximum 1500cc - 4-cycle
Maximum 1000cc - 2-cycle
Tractors meeting the WGTP Open Super Stock Garden Tractor rules will be allowed.
c. No pressurized fuel tank, turbo chargers, or super chargers except engines allowed per Lt & Hvy Super Mod
Rules.
d. Flatheads only may run Nitro Methane up to a specific gravity of .880. (No maximum limit)
e.1. 4-cycle engines over 850cc and 2-cycle engines over 600cc will be limited to a 12” drawbar height.
2. Compact Diesels meeting the rules for Light Super Mod will be allowed a 13” drawbar height.
3. 2-cycle engines 820cc to 1000cc will be limited to 11” drawbar height,
4. 4-cycle 750cc engine with turbocharger meeting Heavy Super Mod Rules allowed but is limited to 12”
drawbar height. 4-cycle 1000cc engine with turbocharger will be allowed but is limited to 11” drawbar
height. (Must meet Unlimited. Outlaw rules for turbos) WGTP Board retains the right to amend this rule
after 3 pulls in the 2024 season.
2. Maximum tire size is 26 X 12 X 12.
3. Maximum tractor length is 8 feet, measured from the center of the rear axle to the furthermost point forward.
Maximum width is 6 feet.
4. All rules under section: General rules, Track rules, and Teardown and Penalties will apply to the Outlaw class.
5. Pullers must be 14 years of age to run a vehicle built for the Outlaw class, or meet the minimum age requirement for
the class that the vehicle normally competes in. All minors must have parent or guardian written permission. Drivers
must demonstrate their ability to safely operate a tractor to a board member. Exception: Persons operating an ATV
styled machine must be 18 or older.
LIGHT & HEAVY UNLIMITED OUTLAW
1. Engine Limitations: (CC limits will be calculated with a 2% allowance)
a. Diesels: Maximum 2400cc, 4-cycle, two turbos.
b. 4-Cycle Motorcycle, Automotive, Snowmobile, or Garden Tractor type engines: Maximum 3000cc, naturally
aspirated, gas or alcohol only.
b.1. Single engine up to 6-cylinder, 4-cycle; up to 2500cc only will be allowed to one turbo or one super
charger. Must be gas or alcohol type engine.
c. 2-cycles: Maximum 2200cc, naturally aspirated gas or alcohol only.
c.1. 2-cycle up to 2000cc will be limited to one turbo or one super charger
d. Single Engine 6-Cylinder, 4-cycle up to 2500cc or a 2-cycle, up to 2000cc will be limited to one turbo or one
super charger. Must be gas or alcohol type engine.
e. Turbines: For Turbine Rules contact a member of the WGTP Board or call 920-324-9602
2. Pressurized fuel tanks are not allowed.
3. One Turbo or Supercharger will be allowed on a multi-engine vehicle provided the cc limits are equal to or less than
the limits stated in Rule b.1 or c.1 above and can affect only up to 50% of the total cc of the vehicle.
4. All Turbo chargers: maximum 2" inlet and 3" outlet (exhaust) to be measured at the face of the wheel.
a. All exposed turbochargers or portions there of must be shrouded 360 degrees with a minimum of 1/16" (.060") steel
except for inlet and exhaust.
b. All turbocharged engines must have two 3/8" bolts, grade #5 or stronger, in the vertical portion of exhaust pipe. Bolts
to be installed 90 degrees to each other, within 1" of each other.
5. All Superchargers:
a. Must utilize aluminum studs to mount the supercharger to the intake manifold.
b. Must utilize supercharger restraint system.
* The restraint system shall consist of 4 separate straps, one on each corner of the supercharger, with each
strap securely fastened to the engine by means of its own attachment bracket.
* The top attachment bracket to be sandwiched between the lower surface of the injector body and the upper
surface of the supercharger case.
* The bottom attachment bracket for each strap shall be connected to the engine by a minimum of (1)
5/16" (Grade 5) bolt or stud.
c. All supercharger drive components must be shrouded on the top and sides with 1/16" (.060") steel. The shield
is to be wider than the drive belt, pulleys, etc. and securely mounted.
6. Diesels: Kill switch must activate air shut-off, no electrically operated air shut-offs.
a. System may use a spring-loaded cap activated by a cable.
b. System shall be deemed acceptable if it at least prevents the building of boost.
c. Driver must have access to the shut-off.
7. a. The use of torque converters and automatic transmission will be permitted.
b. All torque converters and automatic transmissions must be covered with a scatter blanket that extends from
the rear of the engine block to the front of the tail housing. Blanket must be fastened forward securely with two
straps on each side, one above crankshaft centerline and one below crankshaft centerline. Blanket should
have 6" of overlap. Straps must be not less than 2" wide with not more that 1" spacing between each strap.
c. All vehicles using a clutch will be required to have steel billet or aluminum billet flywheel. No gray cast metal
allowed in any flywheel.
d. Lenco type planetary transmissions (excluding reverser) must be covered with a scatter blanket as described
in rule #2 in this section.
e. All vehicles using an automatic transmission must be equipped with a positive reverse-gear lockout.
f. Clutch can be a Lakewood type bellhousing. Stock bellhousing will be allowed but must be fully encased front
to back with SFI Approved Blanket
g. The use of a bellhousing liner is highly recommended.
h. Clutch can liner thickness to be 1/8" 4130 moly. Liner is secured to the can by drilling and tapping a single
1/4"hole through the bottom of the clutch can. If the liner does not fit, the liner length can be cut off to fit the
depth of the can, so that the liner begins directly behind the starting ring gear (if one is used). It must extend
the full length of the can until the back of the clutch begins to taper. If starter ring gear is not used, can liner
must then extend from block saver plate rearward to where the taper can begins. Stand adjustment slot in liner
should be cut directly under slot in can.
i. No lightening holes allowed on the transmission face of the bellhousing. One cooling hole allowed, maximum
1" in diameter on the face of bellhousing. Bellhousing may not be welded or repaired in the explosion area of
the bellhousing. Opening in bellhousing for clutch release fork must be shielded on side, top, bottom, and rear
with1/4" steel no less than six inches wide. The frame of the tractor may be used for the side shield. The top,
rear,and bottom must be fastened to the frame and/or the bellhousing flange with a minimum of six (6) Grade
#8, 3/8" bolts. The rear shield may have a hole large enough to allow operation of clutch rod linkage. No part of
shield may be welded to or bolted to the bellhousing and shield must conform to the contour of the bellhousing.
j. No chemical milling allowed.
k.The inspection/maintenance hole (i/m hole) in the bellhousing shall not extend farther forward at its bottom
edge than flush with the cross-shaft hole nor farther downward at its bottom edge than to allow one 1/2" bolt
diameter edge distance for the fastening holes in both the bellhousing and the i/m hole cover. The length of the
i/m hole shall be no more than 8 1/2" and the ends of the hole shall be smoothly and fully radiused to produce
an oval shape.
l. There shall be (12) 5/6" Grade #5 or better cap screws securing the cover to the bellhousing. The cover must
have a plate or fillet that fits flush inside of the housing. The cover and fillet must be steel. The fillet must be
welded to the cover and all bolts must be flush to the inside.
m. All bellhousings must be flush on the inside surface.
n. All engines with a bellhousing and clutch must run a full block plate, minimum 3/16" steel, or minimum 1/4"
aluminum.
o. Titanium approved for bellhousing.
8. Maximum tire size is 26 X 12 X 12, any rim width. Manufacturer's markings must be on tire. All single cylinders may
run any 15" rim diam. tire but will be limited to 1150 lbs. Weight limit. WGTP Board retains the right to amend the
weight limit.
9. Maximum tractor length is 8 feet, measured from the center of the rear axle to the furthermost point forward.
Maximum width is 6 feet.
10. Roll cage is optional but strongly recommended.
11. All rules under sections: General rules, Track rules, and Penalty and Teardown will apply to the Unlimited Outlaw
classes.
12. Persons 16 or older may pull in the Unlimited Outlaw class. All minors must have parent or guardian written
permission. Exception: Persons operating an ATV styled machine must be 18 or older. Drivers must demonstrate
their ability to safely operate a tractor to a board member.
GENERAL RULES
1. All flywheel shielding: 1/8" steel or 3/16" aluminum, full width of flywheel or more, 360Deg, installed within 1/2" of stock
tin shielding and to be fastened to the frame or engine block. T-brace on shield to be at Tech. inspectors discretion.
Steel or billet aluminum flywheels are mandatory for all Non-Stock tractors. (Does not apply to Stock Tractors)
2. Starting pulleys must be billet aluminum or billet steel. Must have a locking collar and/or bolt to prevent pulley from
coming off the crankshaft. For Stock Classes - Cast iron or cast aluminum starting pulleys are not allowed, must be stamped steel. Stock generator pulleys are acceptable. All must have a retaining device as defined above.
3. All cast iron or aluminum Kohler, Wisc, etc. type engines that have been modified for high performance are to have
scatter shields opposite the camshaft side of the engine. Diesels - must have full metal shields to cover engine area.
a. Shielding must be minimum 1/16" steel or .090" aluminum.
b. Shielding must cover full width and height of engine block.
c. Shield must be attached to the chassis/hook in a secure manner at both top and bottom.
d. This rule does not apply to the Stock class.
e. Proper shielding in Super Mod and Outlaw classes will be up to the Tech. Inspectors.
4. All tractors must have shields around all belts, chains, pulleys and the drive shaft. Minimum of .060" steel or 1/8"
aluminum. U-joints, front, top, and sides toward spectators shall be completely covered. (Except Stock)
5. Clutches must be covered 360 Deg with 1/8" steel or 3/16" aluminum. (Except Stock) Shielding is to be securely
fastened to prevent tear away, extra bolts are strongly recommended. It is strongly recommended to NOT bolt anything
(ex: Fire extinguishers) to any safety shields.
6. “Mod & Outlaw Classes” -Any damper or rotating mass mounted to a non-drive end of crankshaft must be
billet steel or aluminum and be retained by bolt through the center. Must be SFI Spec 18.1 approved or flywheel
shielded.
7. All tractors shall be equipped with a working pull out type switch, which is capable of immediately shutting down
engine in case of accidental separation from the sled during the course of competition. This kill switch shall be
located at the rear of the vehicle in a position that will allow easy attachment and detachment. The switch must be
above the hook point or and near enough to the centerline of the vehicle so that turning will not cause the kill switch to
pull out - (suggested to be within 6" of either side of center). The kill switch must also shut off the fuel pump. Kill
switches will be randomly checked.
8. A qualified driver (for that tractor) must be in the seat at all times when the engine is running unless the tractor is
hooked to the sled with tether (kill switch) line attached.
9. All tractors must have an adequate device to prevent it from turning over. It must consist of two separate sections,
each equipped with either skid plates or wheels, or connected with a full width roller. Skid plates are to be at least 3"
square at the ground contact point. Wheels shall be at least 1" wide and 4" in diameter. Wheels or skid plates are to
be no more than 5" above the ground and must be back 5" from the tires. One shall be on each side of the tractor,
with the combination of the two strong enough to support the weight of the tractor when a jack is placed under them to
raise the tractor. Full width roller must be a minimum of 1.0" diam. to a maximum of 3.0" diam. Anti-tip over device
may be spring loaded but must stop at 5.0". Bumper bars are required, recommended height is 12 inches from
wheelie skids up. Wheelie skids must not interfere vertically with chain during pull. Bumper bars are required,
recommended height is 12 inches from wheelie skids up. Bumper bars will be the furthest rearward point of the tractor
with nothing beyond them except wheelie skid pads or wheels.
10. Garden Tractors: Exhaust pipe must project up, and not face spectators. Super Mod and Outlaw tractors: Exhaust
pipe may project back but must be no more than 20" from ground level.
11. Tractors must be equipped with working rear brakes.
12. Tractors with electric starts must have a neutral/clutch switch.
13. Head straps are mandatory for all factory cast iron and aftermarket finned blocks (except in Stock Class).
14. Deadmans throttles are required, either foot or hand feed. Hand throttles must push forward to increase RPMs.
15. No pressurized fuel tanks of any kind.
16. All tractors must have a functional fire extinguisher (with fill gauge/indicator) within easy access
17. All tractors must have a minimum 3" back rest height.
18. Strapped helmets are required and eye protection is recommended.
19. Fire jackets and pants are mandatory for all non-stock tractors. The jacket must be closed to its fullest extent. All
drivers must wear closed toe shoes, long pants (or fire pants), shirt (or fire jacket). No Nylon. Fire pants, shoes,
gloves, and headsocks are strongly recommended for all drivers.
20. Tractors must run a garden tractor type rearend, differential, or transaxle housing or casting. Modifications are
permitted. (except Super Mod and Outlaw classes)
21. No industrial or commercial lawn cutting engines. Must be garden tractor type engine. (except Super Mod and
Outlaw classes)
22. All tractors require wide front ends. Front wheels must track within any portion of the rear wheels.
23. Turbos (except for diesels), blowers, and superchargers are only allowed as listed per class.
24. No nitrous oxide injections. Propylene Oxide is not allowed in any classes. Fuel injection is allowed as listed in
class rules only.
25. Drawbar:
a. All drawbars will be 13" maximum height, unless otherwise specified per class.
b. Minimum of 6" from hook point to center of rear tire, cross-section area to be a minimum of 3/8",
maximum of 3/4".
c. Must be fixed in all directions.
d. All hitches must be clevis type opening of 1 1/2" to accept the hook from the mechanical sled freely, no
binding.
e. Stocks must have a 5/8" minimum hole for clevis.
26. Maximum wheel base is 56” for Garden Tractor Classes. Maximum overall length is 96” from center of rear
wheel to the furthermost point of the tractor.
27. All power must be transmitted through the rear wheels only, no four wheel drives.
28. Vehicles must run with a hood similar to factory, excluding Super Mod and Outlaw classes.
29. Tires: No studs, chains, wires, duals, or recaps are permitted. Vehicles are limited to 26 X 12 X 12 (Factory
marking only, unless otherwise specified per class).
30. Weights must not interfere with the hookup of the mechanical sled, and must be securely fastened. Nothing may
interfere with hook-up, chain, or drawbar at anytime.
31. Total weight of classes includes the weight of the driver (with suit and helmet) and the vehicle.
32. Stock crank and cam locations must be maintained in all classes except Outlaw.
33. Unless otherwise specified per class: Maximum 2 valves per cylinder, no deck plates. Only Kohler, Tecumseh,
Wisconsin, Briggs and Stratton, or Onen OEM manufactured blocks, or their OEM replacements are permitted.
34. Unless otherwise specified per class, the maximum specific gravity will be .765 for gas, .800 for alcohol, and .775 for
pre-mix gas used in 2-cycle engines. All readings will be corrected to include temperature compensation to 60 deg
Fahrenheit.
35. All tractors must have fenders, Unlimited Outlaw fenders must cover 75% width of the tire and extend down to the
level of the footrest.
36. CVT clutches are not allowed in garden tractor classes (Stock thru Super Stock).
37. A driver will be allowed to pull in a class where the age requirement is higher, as long as the tractor is not changed,
still meets rules of the class that the driver was qualified for.
38. It is strongly recommended that weights be at least 3 inches off the ground and a skid plate with a 1- inch radius
rolled front edge be placed under extendable front weights so that no part of the weight touches the ground and it
does not interfere with operation of tractor. It is also recommended that extendable weight frames have a lock pin to
prevent frame from disengaging.
39. It is strongly recommended that vehicles with reverse gear (except Stock) have a white backup light, minimum 2.0"
diam.
40. All tractors must be Tech Inspected prior to competing. New tractors may be allowed (1) pull to meet the rules.
(This will be determined/recorded by the Tech Inspector) Tech Inspector will inform the new owner/member of changes needed prior to next pull. Tractors found to be illegal due to changes after passing Tech Inspection will be disqualified.
See Membership Rule #14.
41. The WGTP Board may determine 2 pulls at which a rule or rules proposed at the spring meeting will be implemented
for experimental purposes. No points will be awarded to competitors joining a class under experimental rules.
42. Any violation of any of the General rules, will be cause for disqualification.
TRACK RULES
1. Tractors may be entered in as many classes as 3 per session, but only once in each class. Tractors may enter only
two primary classes, the third class must be an outlaw class.
2. Pullers must be registered in 1/2 hour before the scheduled start time of the pull. Late entries may be charged $5.00
extra unless breakdown is proven.
3.At the discretion of the scale operator (due to space) - tractors may not be allowed to line up and scale until the class
prior to that tractor's class has started. The first class will line up and scale approx 15 min prior to the pull start time.
Exceptions will be made for track workers and sled operators.
4. There will be a driver's meeting 1/2 hour before the start of the pull, at the sled. Drivers failing to attend without
reason will risk automatic disqualification.
5. Tractors should be ready by the time the sled arrives back to the starting position. Pullers will have only 3 minutes
after the sled is back in place and the leveling equipment is off the track to start their pull. If they are unable to start
their pull due to mechanical trouble, they may drop back three positions, or to last position if they have breakage.
They may only do this once. Every effort must be made to drive vehicles on and off the track. The 3 minute rule will be
strongly enforced. Push or tow starting allowed only if normal ignition has failed.
If tractor is not started by the 75 foot mark, it must be towed around and ready after the next puller, then if the tractor
does not start, you may drop to last position. Two attempts of 75 ft. (50 ft. for Stock class) are allowed to start sled.
Sled will not be push started.
Any tractor that hooks onto the sled and makes a measurable pull shall be considered to have made an official hook,
even if the sled is reset and the vehicle cannot re-hook. Last place points will be awarded.
6. The first puller is the test puller in each class, and may decline the pull and re-pull right away or drop back to third or
last position. If the puller re-pulls, the second pull will be measured.
7. Shifting of gears on either hydrostatic, automatic, or gear type is allowed, as long as forward motion of the vehicle
does not stop.
8. The point of measurement will be where the vehicle either spins out or powers out.
9.No weight (solid or liquid) may be added to a vehicle after scaled. Weights can be moved around on the machine or
removed. Any added weight will require re-scaling.
10. Loss of weights will be cause for disqualification, including first puller, if the mechanical sled is not changed for the
next puller. If it happens during a pull-off, it will be the point of measurement and you will be dropped to last place in
the pull-off.
11. Loss of anything besides weights will be up to the discretion of the judge whether to let the pull continue or to let
that be the point of measurement.
12. Judges have the right to weigh a tractor before or after a pull.
13. Driver must remain in the seat at all times, with at least one hand on the steering wheel. Hands must not be placed
underneath the fender edges.
14. If the kill switch pulls out more than twice while pulling, it will be point of measurement, unless the sled is the cause
of the pullout.
15. Judges have the right to disqualify any driver for drinking alcoholic beverages.
16. There will be no drinking of alcoholic beverages by pullers, pit crew, track workers or the sled operator during pull.
17. Excessive loss of liquid by a pulling vehicle while in forward motion during a contest on the track will be disqualified,
unless due to internal breakage. Excessive is defined as a steady or intermittent stream discharged onto the track,
or a spot equivalent to more than 8" in diameter.
18. Tractor going out of bounds: Any pulling tractor tire that touches out of bounds lines will cause disqualification;
unless the eliminator forces it out. If the tractor is beyond the end of track (orange) cones it will not be disqualified.
On first attempt for first puller only - puller will be allowed to re-pull regardless of where the vehicle went out. All
others - if the tractor goes out of bounds before the 75 ft mark and the puller attempts to stop before the 75 ft mark
the vehicle will be allowed to re-pull. If you go out of bounds during a pull-off, it will be point of measurement and you
will be dropped to last place in the pull-off.
19. All decisions of the judges are final. Judgment calls by the Track Judge are not subject to appeal. Once
the Red flag is out it will stay out.
20. Judges have the right to not let any driver/tractor compete they feel is unsafe. Green flag will not be given
until track is clear. The Track Judge may stop any pull attempt considered unsafe. The pull will be
measured at that point.
21. If Puller starts to pull while Judge still has the Red flag out, the pull attempt is forfeited, puller must stop.
If the Judge has given the Green flag but the Sled still had Red Light, the pull will be stopped but the
attempt is not forfeited.
22. Disqualification will result if driver does not attempt to stop when Red flagged for any reason.
23. If the sled rider feels a dangerous condition exists on the track, he may pull the sled brake and issue a re-pull for
that puller.
24. Once a tractor is hooked to the sled and any breakage to the tractor occurs, no refund of entry fee will be made for
that class. Any competitor who breaks at an event (or provides notification prior to class start of breakdown in-route
to the event) will receive 5 hook points for all classes entered, but will not receive any prize money unless a
measurable pull has been made by that tractor in that class. Verification may be requested.
25. No hot rodding on, off, or around the track when not pulling, including tow vehicles.
Off track speed limit not to exceed 5mph, subject to the discretion of track judge or WGTP Board.
* 1st time : Warning
* 2nd time : Disqualification
(ATV type vehicles used for towing machines on and off the track must be operated by someone meeting the state
imposed age limit.)
26. When a pull-off occurs, there will be two attempts of 30 feet to start the sled.
27. The use of floating finish lines will be determined by the Board of Directors and the sled operators. Unless otherwise
announced at each pull, a pull-off zone will be established. The zone will consist of the first full pull line and the end
of track line. Any puller reaching the end of track line will automatically qualify for a pull off and/or up to the top 3
distances in the pull off zone.
28. These rules must be followed in order for the pull to be sanctioned by WGTP Inc.
TEARDOWNS AND PENALTIES
1.The protest window is 30 minutes from the conclusion of the class, any protest must be brought to the board at that time and settled before any prize money is distributed. Protests for fuel and teardowns cannot be made outside of class participated in.
2.Each protest to the legality of a tractor engine must be accompanied by a teardown fee, $20.00 + estimated cost of gaskets. All costs must be paid at the time of the protest. Estimated gasket cost will be recorded on the Tractor’s
Tech Sheet. The owner of the tractor willremove the head, carb, or both, whatever the Tech. inspector wants.
Refusal is an automatic disqualification. If found to be legal, the owner will receive the protest fee. If the tractor is found to be illegal, the protester will get his fees back, the illegal tractor will be disqualified from all classes entered that day, and disqualified from Points System for the rest of the season. The offender must prove legality to the WGTP Board upon return to competition, and pay re-registration fee of $50.00.
Any protest not involving teardown will require the $20.00 protest fee only. A tractor must have finished in the top 5
of a class to be subjected to a teardown.
3. Tech. Inspectors or Board members have the right to check specific gravity of a competitors fuel at anytime. Any
reading over the maximum listed under each division, on the club appointed hydrometer, will be disqualified even if
found before the start of the pull. WGTP Board retains the right to check rpms, carbs, weight, and drawbar at the
completion of an Individual's pull. The puller will be notified prior to leaving the track. Tech Inspectors or Board
Members retain the right to perform "Water" tests or other fuel checks on randomly selected classes to detect the
use of methanol, ethanol, alcohol, or other substances where prohibited or otherwise limited.
4. Classes with cubic inch limits will use the following formula: .785 X Bore X Bore X Stroke X Number of Cylinders
5. When disqualified for going out of bounds, loss of weights, or loss of liquid, the puller will get last place points for the
class.
6. When disqualified for illegal fuel, drawbar, over weight, or improper equipment, the puller will get no points, no hook
points, or no prize money for any classes run that day.
7. The WGTP Board retains the right to suspend members causing or participating in disturbances on or near the track, from participating in the balance of the event and/or future pulls. No prize money, refunds, or points will be awarded during the suspension.
8. WGTP Board reserves the right to conduct random teardowns of top pullers per class prior to payout of prize money.
9. Pullers are responsible to have the tractor legal and Tech Inspected prior to pulling or risk disqualification.
MEMBERSHIP INFORMATION
1. Membership Dues:
$40.00/Member or $30.00/Member (If paid at or before the spring meeting) plus $15.00/Tractor
2. Memberships run from Jan. 1 through Dec. 31, and must be paid annually.
3. WGTP Inc. full season membership includes:
a. Voting rights at annual meeting. Garden tractor drivers/owners only will vote on garden tractor class rules and
Super Mod drivers/owners only will vote on Super Mod class rules
b. Rights to hold a position on the Board of Directors.
c. All mailings, meeting notices, and schedules.
d. Copies of all WGTP rules and regulations.
e. Two pit passes per member and one for each additional vehicle.
f. Availability of liability insurance - to be paid on a per pull premium basis.
g. Participation in WGTP points system.
4. One day memberships will be available at a cost of $5.00 per class entered.
5. A per class entry fee is required to compete at a WGTP pull event. The entry fees collected per class determine the
prize money amounts to be distributed. A portion of the entry fee may be used to cover the insurance cost of the pull.
6. Those participating in the WGTP points system will be eligible for the overall points championship per weight class
based on points accrued throughout the year. These classes are:
Child Stock1000# Heavy Pro Mod1050# Outlaw1100#
Adult Stock1050# Open Super Stock1050# Unlimited Outlaw1400#
Stk Twin 21-251050# Light Super Mod1050# Heavy Unlimited1450#
Light Pro Mod1000# Heavy Super Mod 1300#
7. Ties in points: the 1st place finishes will be added up and the vehicle with the most in that class will win. If still tied, 2nd place finishes will be tallied and so on, if still an absolute tie the puller who had the “first” 1st Place of the season will be the Champion. A pull-off for a tie will be allowed if both parties agree and time permits, the decision will be final.
8. The number of points awards offered at the end of the year will be based on the number of vehicles in the class:
2 or less 1st only
3 1st and 2nd
4 or 7 1st through 3rd
8 to 11 1st through 4th
12 or more 1st through 5th
9. The Tractor must compete in a class at least 51% of the season to be considered in the points for that class. Points will stay with the tractor for the duration of the season. One-Day Members are not factored in the points.
10. If, during the season, an owner determines the frame, chassis, or sheet metal of a tractor must be replaced, any replacement parts must be the same as previously existed on the tractor unless written permission is granted by the Board prior to replacement. Failure to comply will result in the repaired tractor being considered a “new” tractor and all points will start over at zero.
11. If all drivers in a class agree that track conditions do not warrant a points pull prior to the start of the class, tractors
that participate in the class will receive equal participation points. (per hook pts)
12. In the event of a pull cancellation (due to weather) pullers who have arrived or call 1 hour prior to set pull time will be
awarded hook points.
13. Points per class will be awarded as follows: 5 Hook Pts plus points starting at 10 for 1st place, 9 for 2nd place, and
so on down to 1 point for 10th place. (1st = 15pts, 2nd = 14pts, 3rd = 13pts and so on)
Definitions:
Tractor = Pulling Vehicle, Tractor, or Machine
Puller = Tractor-Driver combination
Driver = Driver
Owner= Owner Member
