Hot Rod Garden Tractor and Compact/Mini Truck Pullers Association

Sanctioning Rules and Regulations

This website was updated 2/13/18. Changes made to these rules with approval by members (pullers) of the HRGTPA. Click HERE or HERE to refresh or reload this web page to see any changes. NOTE: Due to multiple separate garden tractor pulling associations/clubs in Missouri, no HRGTPA pulling events will be scheduled until further notice.

Contact Information:
Brian Miller | 1-573-256-0313 (home/shop) | 1-573-881-7229 (cell) | Email: pullingtractor@aol.com or pullingtractor@yahoo.com


HRGTPA Home Page | Pulling Event Schedule | Membership Registration Form | Prize Money Payback Chart | Points Standings


LIST OF SANCTIONED CLASSES: (All weights are maximum limit with the driver, fire suit and helmet for the class.)

  1. 900 lb. Up to 10hp, STOCK GARDEN TRACTOR [Jump down to rules for this class]
  2. 1000 lb. Up to 14hp, STOCK GARDEN TRACTOR [Jump down to rules for this class]
  3. 1050 lb. Up to 16hp, HOT STOCK GARDEN TRACTOR [Jump down to rules for this class]
  4. 1000 lb. / 950 lb. OUTLAW GARDEN TRACTOR [Jump down to rules for this class]
  5. 1050 lb. TWIN CYLINDER GARDEN TRACTOR [Jump down to rules for this class]
  6. 1050 lb. 16hp MISSOURI SUPER STOCK GARDEN TRACTOR [Jump down to rules for this class]
  7. 1050 lb. 50.5 CID MODIFIED GARDEN TRACTOR [Jump down to rules for this class]
  8. 1150 lb. MOTORCYCLE ENGINE GARDEN TRACTOR [Jump down to rules for this class]
  9. 1250 lb. OPEN GARDEN TRACTOR [Jump down to rules for this class]
  10. 1350 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR (MINI-ROD) [Jump down to rules for this class]
  11. 1500 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR (MINI-ROD) [Jump down to rules for this class]
  12. 2900 lb. 2WD Stock Compact/Mini Truck (PROPOSED RULES) [Jump down to rules for this class]
  13. 2900 lb. 4WD Stock Compact/Mini Truck (PROPOSED RULES) [Jump down to rules for this class]
  14. 3800 lb. 2WD Pro-Street Compact/Mini Truck (PROPOSED RULES) [Jump down to rules for this class]
  15. Additional class(es) may be made for garden tractors from other pulling associations. The HRGTPA will adopt the other association's sanctioning rules for the additional classes.

It takes a minimum 2 of the same type pulling vehicles to make a class. Pulling vehicle may step up a class as long as it meets the requirements of that class and the President and Head Safety Official approve the move. Pulling vehicles may not step down a class.

MEMBERSHIP:

Free puller membership for 2016! You do not need to be a paid member to participate with the HRGTPA at any event! However, being the HRGTPA is not-for-profit professional pulling organization, monetary contributions and donations would be appreciated to help cover pulling insurance costs and various other expenses for operations of the club. Please click here to print-out and fill out the Membership Registration Form. Click here to read and print-out our insurance policy. The pulling insurance covers the audience/spectators of our pulls only (spectator liability). It does not cover any member or participant of the HRGTPA. Any left-over money collected at the end of every year will be returned to the pullers in one form or another and/or be used for insurance to cover the pulls for the following year.

PULLING/HOOK/ENTRY FEES: (Where allowed.)

Hook/Entry fees is $12.00 each, only if a pull site allow this activity. ($10.00 goes to prize money purse for 100% prize money payback for all classes, and $2.00 goes to the HRGTPA Secretary/Treasurer for their honest and hard work for collecting entry fees, figuring and distributing the prize money payback to the winners.) To make payback easier, please pay entry fee with $1 bills, $5 bills and very few $10 bills. Please show up one hour before pull starts for registration, sign-up and weigh-in. Prize money per class will be paid back 100% in cash, as follows: 2 pulling vehicles per class - winner takes all; 3 pulling vehicles per class pays up to 3 places; 4 pulling vehicles per class pays up to 4 places; and 5 or more pulling vehicles per class pays up to 5 places. Click here for Prize Money Payback Chart. Prize money will be paid back at the pulls if time permits. If there is not enough time, money will be paid out at the next pull, or mailed within 2 weeks of pull. All exhibition pulls will take place at the end of the pulling event.

POINTS:

Points go to the pulling vehicle and registered driver. The pulling vehicles will receive points for participating in sanctioned or sponsored pulls in the following manner: 5 points to show, 1 point to hook. If your pulling vehicle is disabled and you have it at a pull, please inform the secretary so you can receive your points for showing up at the pull. Placing points are as follows: 1st place - 10 points; 2nd place - 9 points; 3rd place - 8 points; 4th place - 7 points; 5th place - 6 points; 6th place - 5 points; 7th place - 4 points; 8th place - 3 points; 9th place - 2 points; 10th place - 1 point. 11th place to end of class will receive no points.

EVENT PROCEDURES:

  1. Local [stock] classes at a sponsored event may make their own rules, but pulling vehicles must have a 10" drawbar/hitch height and strong wheelie bars for safety reasons before hooking to the HRGTPA sled. No exceptions!
  2. The sled operator and helpers, and driver and one helper per pulling vehicle receives free admission with no charge for gate fees.
  3. No trophies or wall plaques will be given by HRGTPA at sanctioned pulls. Sponsors of events may award trophies or wall plaques if they choose.
  4. Once the HRGTPA rules are voted in at the yearly meeting, they shall not be changed or altered during that year's pulling season. No favoritism will be offered to any puller. ONLY safety issues would warrant change during the pulling season.
  5. Mandatory driver's meeting prior to each event.
  6. Pullers, helpers or visitors shall not stand along side of track and block the sponsors', judges' or spectators' view of pulling vehicles competing along entire length of track.
  7. Before hooking and after unhooking from sled, driver shall operate pulling vehicle at such a safe, slow speed as to be in full control at all times.
  8. During pull, driver must have at least one hand on steering wheel at all times.
  9. All pulls shall start with a tight and untwisted chain, no intentional jerking will be permitted. If chain is twisted, pulling vehicle will be disqualified.
  10. Blade tractor will blade track after each pulling vehicle pulls to ensure fair pull for all entries.
  11. As soon as each pulling vehicle have finished pulling, they shall exit the track and return to pit area.

ELIGIBILITY REQUIREMENTS, PULLING RULES AND PROCEDURES:

  1. All pulls are to be held on dirt or clay tracks only. No asphalt or concrete pulling.
  2. Contest is open to two-wheel-drive, rear-wheel-drive and rubber lug tread tire pulling vehicles only. No dual tires, chains or studs permitted. See individual class for specific requirements.

Age Requirements:

  1. Participants under 16 years old - Parents must read, fill out and sign a responsibility waiver. Click here for the RELEASE AND WAIVER OF LIABILITY AND INDEMNITY AGREEMENT and MINOR RELEASE AND WAIVER OF LIABILITY AND INDEMNITY AGREEMENT (Requires Adobe Acrobat Reader and Google Chrome web browser for a faster download.)
  2. Participants under 7 years old - One adult is required to walk alongside pulling vehicle. Safety officer will determine if driver is qualified to handle pulling vehicle in a safe manner.
  3. Participants in the Automotive Engine Mini Rod class(es) must possess a valid DMV driver's license.
  4. No one under the age of 18 will be allowed to operate the HRGTPA sled or scales.
  5. Only the flag person is allowed within the track boundary lines during the pull, unless driver of pulling vehicle is under the age of 16 and one adult is required to be on the track, but will be allowed to touch the pulling vehicle while it is pulling.

Sign-In:

  1. Table will be available to sign-in pulling vehicles/pullers in one hour before scheduled pull time. All pullers will sign-in by the name of puller and the pulling vehicle name.
  2. Random drawing of a number by each puller will determine the line-up position for each pulling vehicle.
  3. Sign-in will close 15 minutes before the scheduled time of pull. Exceptions will be made in case of road emergency and evaluated on case by case basis with approval of the President of the association.

Scales:

  1. Scales will be placed on flat, level surface in close proximity to sled.
  2. Scales will open one hour before scheduled pull time for operators to pre-check the weight of their pulling vehicle and make necessary adjustments.
  3. Scales will close to all but the class pulling 15 minutes before the first class starts to allow the pulling vehicles sufficient time to line up for the official weigh-in just before pulling.
  4. Weight bar extensions must be pushed in or removed before crossing the scales.
  5. Zero tolerance will be allowed on weight limit. Pulling vehicles will be weighed just prior to hooking to the sled. Pulling vehicles pulling light (under weight limit) will be the operator option.

Line Up List (to avoid delays):

  1. Pullers will be responsible to check the line-up list in the order of their pulling vehicle(s) for each class.
  2. 1st class will start lining up and getting ready to weigh in 15 minutes before the scheduled start time.
  3. 1st puller in the class will be weighed and ready to hook by the start time next puller will be ready to weigh.
  4. All pulling vehicles in a class shall be in-line in the order of the line-up position and ready to pull by the time the class starts.

General Rules for the Sled and Pulling Vehicles:

  1. Self-propelled, weight transfer sled will be used at all pulls.
  2. The steering wheels/tires (toward front of sled) shall remain in the most upright position at all times when pulling vehicles are hooked to sled. An indicator light in operator's compartment and the main red light shall illuminate/flash when the wheels/tires are lowered at any time.
  3. The weight box travel and/or any added weight of the sled shall remain as is at all times when a class of pulling vehicles are hooked to the sled. Changes to the weight box travel and/or weight of the sled can be made as class of pulling vehicles change.
  4. No portion of pulling vehicle may interfere with the chain on front of sled during pull.
  5. Pull chain and killswitch cable must be easily hook-able with no interference from anything on pulling vehicle.
  6. Chain length from sled will be 40" for all classes, measured from front of skid pan to inside loop of hook.
  7. The HRGTPA will provide two (2) working fire extinguishers located inside front of sled. Fire extinguisher on garden pulling tractor is optional.
  8. Once garden pulling tractor is hooked, engine running, in gear and ready to pull, the driver will be the only person allowed to touch the tractor. Exception: A parent or responsible adult is allowed to help a young puller to depress and engage the clutch pedal after tractor is hooked, engine running and in gear.
  9. If any pulling vehicle is having problems (i.e., won't start, carburetor needs adjustment, flat or low tire, etc.) and it's the pulling vehicle's turn to pull, the driver may elect to drop to the last position in the class.
  10. If all pulling vehicles have pulled and a pulling vehicle is still not in position, the pulling vehicle will have 3 minutes to get into position or be disqualified.
  11. The first puller in each class is the test puller, this puller can accept or decline the pull only while still hooked to the sled. The puller must notify the flag person (and secretary) with a thumb up or thumb down at this time and have the flag person inform the secretary if they wish to re-pull in the 3rd or last position of that class.
  12. If the 1st pulling vehicle in a class goes out of bounds at any point along the track, the puller still has the option to re-pull.
  13. Any pulling vehicle that pull 75 feet or less have the option of a second pull and must tell the flag person at the time of the unhook if they wish to pull again, and if they will move to pull in 3rd or last position. The 75 foot option is determined by very front of sled, not any part of pulling vehicle.
  14. If a driver raises his/her hand to indicate that they want to stop and re-pull before the 75 foot line and the front of sled coasts past the 75 foot line, the pulling vehicle will be allowed to re-pull.
  15. If the first two pullers in a class goes out the gate, the weight box will be regeared or additional weight will be placed on sled. The class will restart, with the 1st puller having the option to be the 1st hook or drop to the last position in their class to allow for engine cooling.
  16. Pullers has the option to re-pull if the pulling vehicle goes out of bounds less than the 75 foot line.
  17. Tractor will be disqualified if it goes out of bounds of the track past the 75 foot line, or if any part of pulling vehicle tire touches boundary line. Flag person's decision will be final on all out-of-bounds ruling.
  18. All weights, weight brackets or boxes must be safely secured to pulling vehicle and not extend beyond rear tires. Any weights falling off pulling vehicle or front weight bar while hooked to sled will be cause for disqualification. If any weight(s) or part of pulling vehicle falls off tractor during the pull, the tractor will be disqualified. There is no distance consideration, the tractor will be disqualified. Exception: The 1st puller in the class will be allowed to refuse the pull and re-pull in the 3rd or last place of the class.
  19. If two or more pullers goes out the gate for a full pull, a pull-off will be held after the last pulling vehicle in that class has pulled. The puller will only hook once, and there will be no options to re-hook in the pull-off. I.E. In a pull-off, if pulling vehicle only pulls a distance of 70 feet, that distance will be recorded.
  20. If there is a tie for first place, there will be a pull-off to determine the winner.
  21. If there is a tie for second place, they will split the 2nd and 3rd place money 50%.
  22. The pull for the pulling vehicle will not end until the pulling vehicle is unhooked from the sled.
  23. Unhooking will not occur until the forward motion of the sled stops or when the front of the sled goes beyond the end of the track (out of the gate).
  24. Flag person (and pullers) should hold hole-digging by the pulling vehicle tires to a minimum.
  25. The driver must remain seated at all times while pulling. Can slide side to side on seat, but no raising out of seat.
  26. Drivers must have at least on hand on steering wheel at all times while pulling.
  27. Tractor will be disqualified if attempting to launch at the starting line before the green flag is displayed by the flagman.
  28. All pulling vehicles must be operated in a safe manner on the track and slow speed in the pit area at all times.
  29. The first puller of each class is responsible for hooking pulling vehicles to the sled in the next class or find a substitute flag person. Flag person must be minimum 18 years of age and be familiar with all HRGTPA rules.
  30. The second puller of each class is responsible for flagging and unhooking the pulling vehicles in the next class.
  31. Automotive Engine Mini Rod pullers shall help place ballast weights in the pan of the sled when it's their time to pull. No exceptions!
  32. Pullers shall help remove/install sled towbar, unload/load scale platform on the sled and unload/load ballast weights in the rear of sled-towing vehicle.
  33. All pulling vehicle pullers/drivers must wear the required safety equipment. (See safety requirements and special requirements in each individual class.)
  34. To encourage spectator attendance and family participation, all pullers, helpers and visitors shall show good sportsmanship. All drivers should be clean in appearance and neatly attired. Pulling vehicles should be clean and painted. There shall be no loud profanity, arguments or fighting by the pullers at any pull or meeting. Anyone acting in such a manner or displaying non-sportsmanship-like conduct will be asked to leave. This will be strictly enforced at all pulls and official meetings!
  35. Pullers will refrain from consuming alcoholic beverages and/or be under the influence of illegal drugs, before and during any sanctioned pull or official meeting. Pullers shall not smoke while pulling. This will be strictly enforced at all pulls and meetings.
  36. Any pulling vehicle performing an exhibition pull must pass a safety inspection to be eligible to pull, pull will be held at the end of the entire pulling event, and will be charged $5.00 each.
  37. Any violations of the above rules will be subject to protest, disqualification or ineligibility to pull.

Inspection and Safety Requirements that Applies To All Pulling Vehicles:

  1. Safety Officers will inspect all pulling vehicles at the practice/test pulls or before allowing a pulling vehicle to pull at the first pull attended. Pulling vehicle will be marked and signed off by the safety official and puller to verify it passed inspection. If a pulling vehicle doesn't pass the safety/tech inspection, it will not be allowed to pull. NO EXCEPTIONS!
  2. A DOT-approved safety helmet is mandatory in all classes.
  3. All pulling vehicles must have a working killswitch attached to the rear of the pulling vehicle and must be easily accessible. Engine must die immediately when plug is pulled.
  4. All pulling vehicles must have wheelie bars, either minimum 3" square skid plates or minimum 1" wide x 5" diameter wheels, located on either side of the drawbar, not to interfere with the hitching of the sled chain. Rear edge of skid plates or wheels are to be no less than 5" behind rear most point of rear tires and bottom of skid plates or wheels no more than 5" above the ground. Wheelie bars must be able to support the rear weight of the pulling vehicle.
  5. Must have sled bump bars incorporated into the wheelie bar braces. Must keep sled from hitting dolly wheels or pads of anti-tip device.
  6. All drawbars are to be constructed of no less than 3/16" in thickness and no more than 3/4" in thickness and must have a minimum 1-1/2" opening for hook with no more than 3/4" from front of opening to the back edge of opening. All drawbars must be stationary in all directions and made of steel.
  7. All throttles must be spring loaded. Engine must automatically return to idle when pressure is released from throttle device.
  8. Garden tractors: Flywheel and starter pulley must be made of billet steel or aluminum on engines running at wide open throttle. Crankshaft must have a bolt and flat washer in PTO end to keep pulley from sliding off. No stamped steel pulleys on horizontal shaft engines allowed.
  9. Starter/generator pulleys and belts must be shielded with minimum .060" thickness steel or .090" thickness aluminum.
  10. No stamped steel pulleys on horizontal shaft engines allowed.
  11. Starter side of block must be shielded with minimum .060" steel or .090" aluminum. Shield must be securely fastened to top of block down to frame of tractor and cover entire height of block and width of crankcase.
  12. All unrestricted exhaust must discharge vertically and be securely attached, unless stock muffler is used.
  13. All tractors must have clutch and flywheel shielded 360°. The clutch shielding must be minimum 1/8" steel or 3/16" aluminum.
  14. All engines must have a scatter shield opposite camshaft side of the engine; must be minimum .060" steel or .090" aluminum.
  15. Shifting will not be allowed.
  16. Tractors must be equipped with working brakes.
  17. Steering on all pulling vehicles must not have excessive looseness or "sloppiness". Steering box gears must be adjusted "snug" and tie rod ends/ball joint ends must be in good condition or pulling vehicle will not pass safety inspection.
  18. Engine cylinder must be securely "strapped" or fastened to crankcase to prevent cylinder separation. Exceptions: 900 lb. Stock class, aftermarket, motorcycle and automotive engines.
  19. Fuel lines and hoses must be in good condition on all pulling vehicles, including all local [stock] garden tractors. No dry-rotted or weather-cracked fuel hoses, leaking fuel hoses or lines and/or fittings, steel braided fuel hose covers allowed. Gas cap must fit securely on fuel tank. No exceptions!
  20. No pressurized fuel tanks, no methane, propylene oxide or nitrous oxide allowed in any class.
  21. No weights to extend beyond rear tires.
  22. Rear fenders must extend over tires minimum 4" and shield the operator from seat to foot rest with minimum width of 4". This rule is to prevent puller's foot being pulled in by the tire.
  23. Seat must have minimum 3" tall 45° angle rear support to prevent puller from sliding off seat if sled bumps pulling vehicle. All plastic seats must have a metal frame.
  24. All drivers must wear a shirt, long pants and closed-in shoes. (Jacket and pants or one piece coverall type.) Fire suits are mandatory if burning methanol fuel. Fire suit must be worn properly zipped, snapped and all loose ends in place. If not, pulling vehicle and driver will not be allowed to pull.
  25. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.

General Requirements For All Classes of Pulling Vehicles:

  1. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  2. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  3. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Garden tractor /mini-rod scale platform is 8 feet long.)
  4. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.


900 lb. STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Age Limit: 16 years or under. If driver turns 17 during pulling season, they will be allowed to pull in this class the remainder of the year.
  2. Drivers 7 years old or under must have a parent or responsible adult walking beside tractor during the pull with a remote killswitch in hand.
  3. Maximum weight limit is 900 lb., including tractor, weights, driver and helmet.
  4. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  5. Engine: 8hp and under OHV or 10hp and under flathead, air-cooled, lawn and garden-type of engine only, single cylinder flathead. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  6. Engine requirements:
    1. Engines will be limited to 4,000 rpm with working governor to regulate engine speed.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. Must run stock cylinder head. No welded-up combustion chamber.
    9. Must run externally stock appearing carburetor. Bottom high speed adjuster not allowed.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition parts. Exception: Can run adjustable GM (Chevy) ignition points on side of block. Ignition points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No crank trigger ignition systems allowed.
    12. Can run stock flywheel with shortened fins. Steel flywheel is optional.
  7. Mechanical or electric fuel pumps allowed.
  8. May alter gear ratio.
  9. Any violation of the above requirements will be subject to protest or disqualification.
  10. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


14hp STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,000 lb., including tractor, weights, driver and helmet.
  2. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  3. Engine: Up to 14hp flathead, air-cooled, lawn and garden-type of engine only, single cylinder. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  4. Engine requirements:
    1. Engines are limited to 4,000 RPM maximum.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. Must run stock cylinder head.
    9. Must run externally stock-appearing carburetor with no bottom adjuster.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition parts. Exception: Can run adjustable GM (Chevy) ignition points on side of block. Ignition points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No crank trigger ignition systems allowed.
    12. Crankshaft must have a bolt and washer in PTO end to keep starter pulley from sliding off.
  5. Mechanical or electric fuel pumps allowed.
  6. May alter gear ratio.
  7. Professional cut (molded) tread tires are allowed.
  8. Any violation of the above requirements will be subject to protest or disqualification.
  9. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


16hp HOT STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver and helmet.
  2. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  3. Engine: Up to 16hp flathead, air-cooled, lawn and garden-type of engine only, single cylinder flathead. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  4. Engine requirements:
    1. Engines are open RPM.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. May run stock, recast or billet cylinder head.
    9. Must run externally stock-appearing carburetor. Bottom adjuster optional.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition parts. Exception: Can run adjustable GM (Chevy) ignition points on side of block. Ignition points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No crank trigger ignition systems allowed.
    12. Flywheel and starter pulley must be made of billet steel or aluminum. Crankshaft must have bolt and washer in PTO end to keep pulley from sliding off.
  5. Mechanical or electric fuel pumps allowed.
  6. Engines will be ran at wide open throttle. Engine may have working governor, if desired.
  7. May alter gear ratio.
  8. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  9. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


OUTLAW GARDEN TRACTOR CLASS REQUIREMENTS: (Consists of Stock Altered 16hp, and 30 Cubes; Each tractor follows it's own established rules.) Top of page


TWIN CYLINDER GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver and helmet.
  2. Open rpms.
  3. Steel flywheel mandatory.
  4. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  5. Engine allowed to have aftermarket pistons or welded-up OEM pistons and billet connecting rods w/bearing inserts.
  6. Maximum .050" cylinder overbore.
  7. Heads must match the block. No 30hp (Kohler) heads allowed.
  8. No porting or polishing.
  9. Single barrel externally stock-appearing carburetor.
  10. 25hp and under carburetor horsepower intake.
  11. Stock size valves, can use roller rocker arms.
  12. Any type of ignition system allowed. Ignition points must be covered or shielded to prevent risk of fire.
  13. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  14. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


16hp MISSOURI SUPER STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum 16hp engine. Engine cylinder bore limited to .080" over, including wear.
  2. Maximum weight limit is 1,050 lb., including tractor, weights, driver, helmet and fire suit.
  3. Pump gas or methanol fuel only. No nitromethane allowed.
  4. Open to any lawn and garden single cylinder, flat head, air cooled naturally aspirated engine up to 16hp. No motorcycle engines allowed.
  5. Must have stock stroke, but can have .005" increase in length of stroke for crank journal undersize regrinding.
  6. Any type of ignition system allowed. Ignition points must be covered or shielded to prevent risk of fire.
  7. Aftermarket blocks are allowed.
  8. Steel flywheel mandatory.
  9. Crankshaft and camshaft must be in original position.
  10. Must maintain original head bolt pattern.
  11. One externally stock appearing carburetor with a maximum 1.2" venturi.
  12. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  13. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


50.5 CID MODIFIED GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver, helmet and fire suit.
  2. Pump gas or methanol fuel only. No nitromethane allowed.
  3. Engine: Single cylinder, flathead, air cooled, naturally aspirated engine only. No motorcycle engine allowed.
  4. Maximum engine cubic inch displacement is 50.5.
  5. Crankshaft and camshaft must be in original position.
  6. Must maintain original head bolt pattern.
  7. Open carburetion or fuel injection allowed.
  8. Billet steel or aluminum flywheel and/or starter pulley required.
  9. Any type of ignition system allowed. Ignition points must be covered or shielded to prevent risk of fire.
  10. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  11. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


MOTORCYCLE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,150 lb., including tractor, weights, driver and helmet.
  2. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  3. Engines: Motorcycle engines (1 cylinder engines allowed to make class), 850 cc's below.
  4. All exposed turbo chargers or portions, must be shrouded 360° with minimum 1.060" steel except for inlet and exhaust.
  5. Hood or side shields are optional.
  6. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  7. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,250 lb. OPEN GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,250 lb., including tractor, weights, driver, helmet and fire suit, if worn.
  2. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  3. All Open class tractors must have nothing bigger than a 4 cylinder automotive engine.
  4. All exposed turbochargers or portions thereof must be shrouded 360° with minimum .060" thickness steel, except for inlet and exhaust.
  5. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  6. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,350 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,350 lb., including tractor, weights, driver, helmet and fire suit, if worn.
  2. Length: Not to exceed 8' in length (excluding wheelie bars) and no longer than 72" between axles (center to center)
  3. Width: Not to exceed 60".
  4. Tractor must fit scales as they are set up to weight and pull.
  5. Open to any piston-powered automotive engine. No rotary engines. No cubic inch limit. Aluminum heads and aluminum intakes are permitted.
  6. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  7. All tractors must be equipped with a functioning brake and reverse gear.
  8. Use of torque converter/automatic shifts will be permitted.
  9. All automatic transmissions must have a park/neutral -gear safety switch. Engine must not crank to start over when transmission is in any gear except park or neutral.
  10. All manual transmissions must have a clutch or neutral-gear safety switch. Engine must not crank over to start with clutch engaged or when transmission is in any gear except neutral.
  11. All driveline u-joints must be shielded 360° with minimum 4" width of 1/16" steel or 1/8" aluminum loop.
  12. All flywheels and flex plates must be shielded 360° with minimum 4" width of 1/4" steel or 3/8" aluminum. Transmission blankets are optional.
  13. Any engine equipped with a harmonic balancer or steel hub shall be shrouded with 1/4" steel or 3/8" aluminum. Shroud shall be no more than 1" away and be 360°.
  14. All tractors shall have a main battery disconnect switch. To be located where (in case of an emergency) track personnel can get to the switch. Switch must be in battery line before going to starter and kill all power to the tractor.
  15. Unrestricted exhaust must discharge vertically (up) at least 12" above bend and be securely attached.
  16. Roll bar to prevent 360 rollovers is optional.
  17. Before hooking and after unhooking from sled, driver shall operate tractor at such a speed as to be in full control at all times.
  18. All pulls must start from a tight chain, no jerking will be permitted.
  19. Any puller attempting to pull before flag person displays the green flag will be subject to disqualification.
  20. Blade tractor will blade track after each tractor pulls to ensure fair pull for all entries.
  21. Heim (ball joint) type tie rod ends required with bolt, washer and lock nut. Integrated ball and socket type of tie rod ends not allowed.
  22. Fire suits are mandatory if running methanol. Fire suit must be worn properly zipped, snapped and all loose ends in place. If not, tractor and driver will not be allowed to pull.
  23. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  24. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,500 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,500 lb., Includes tractor, weights, driver, helmet and fire suit, if worn.
  2. Open to any piston-powered automotive engine. No rotary engines. No cubic inch limit. Aluminum heads and aluminum intakes permitted, engine can be either carbureted or fuel injected.
  3. All unrestricted exhaust must discharge upward at least 12" above bend and be securely attached to engine or tractor frame.
  4. Tractor not to exceed 8' in length (excluding wheelie bars) and no longer than 72" from center of front spindles to center of rear axles.
  5. Not to exceed 60" in width.
  6. Front and rear tires of tractor must fit on scales as they are set up to weight and pull.
  7. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  8. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  9. All entries must be equipped with a functioning brake and reverse gear.
  10. Wheelie bars mandatory to prevent a possible turn over, they must be adequate to support the weight of the entry.
  11. Wheelie bars and weights must be attached so as not to interfere with hooking of sled chain and drawbar.
  12. In case of drawbar/hitch breakage, drawbar/hitch must have minimum 3/16" diameter steel safety cable securely fastened around one axle housing, going behind/across drawbar, and securely fastened around other axle housing.
  13. All weights, weight brackets or boxes must be safely secured to the tractor and not extend beyond the rear tires. Any weights falling off tractor while hooked to the sled will be cause for disqualification.
  14. Use of torque converter/automatic shifts will be permitted.
  15. All automatic transmissions must have a park/neutral-gear safety switch. Engine must not crank over when transmission is in any gear except park or neutral.
  16. All manual transmissions must have a clutch or neutral-gear safety switch. Engine must not crank over with clutch engaged or when transmission is in any gear except neutral.
  17. All driveline u-joints must be shielded 360° with minimum 4" width of 1/16" steel or 1/8" aluminum loop.
  18. All flywheels and flex plates must be shielded 360°, 4" minimum width and constructed of 1/4" thickness steel or 3/8" thickness aluminum.
  19. Automatic transmission blanket is optional.
  20. Any engine equipped with a factory harmonic balancer must be shielded 360° with 1/4" thickness steel or 3/8" thickness aluminum. Shield shall be no further than 1" distance from balancer.
  21. All tractors shall have a killswitch centered above the drawbar/hitch so it can be easily hooked/unhooked to the sled.
  22. All tractors shall have a main battery disconnect switch, to be located where track personnel can easily disable it in case of an emergency. Switch must be connected between positive battery cable and disable power to all electrical circuits when turned off.
  23. Roll bar to prevent rollovers is optional.
  24. Heim (ball joint) type tie rod ends required with bolt, flat washer and lock nut. Integrated ball and socket type of tie rod ends not allowed.
  25. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  26. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


2,900 lb. 2WD Compact/Mini Truck Rules - (PROPOSED RULES)

  1. Drivers must be minimum 16 years of age with a valid driver's license.
  2. Drivers must wear DOT-approved helmet and use seat belt when pulling.
  3. Maximum weight limit is 2,900 lb., including truck, weights, driver, helmet and fire suit, if worn.
  4. Filled fire extinguisher must be mounted in cab within driver's reach and/or outside rear of cab within easy reach.
  5. 4 cylinder or V6 engines only, naturally aspirated carburetion or factory fuel injection only. No turbo- or super-chargers allowed. No V8's, rotary or diesel engines allowed.
  6. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  7. Unrestricted exhaust can exit vertically out of hood or down and under. No side pipes.
  8. Maximum 26-12.00x12 bar, lug or turf tread tires. No paddle tires.
  9. Driveshafts must be safety looped 360º, front and rear.
  10. Rear axle housing must be fastened rigid to frame of truck.
  11. Must have killswitch for ignition and electric fuel pump mounted in close proximity of drawbar/hitch.
  12. Safety backup light(s) shall be above the drawbar/hitch or in factory location and must illuminate white in color when transmission is in reverse.
  13. Maximum 18" drawbar/hitch height. Rear of loop or hole for hook must not extend past very rear portion of truck or rear bumper. Rear bumper can be used as the drawbar or hitch.


2,900 lb. 4WD Compact/Mini Truck Rules - (PROPOSED RULES)

  1. Drivers must be minimum 16 years of age with a valid driver's license.
  2. Drivers must wear DOT-approved helmet and use seat belt when pulling.
  3. Maximum weight limit is 2,900 lb., including truck, weights, driver, helmet and fire suit, if worn.
  4. Filled fire extinguisher must be mounted in cab within driver's reach and/or outside rear of cab within easy reach.
  5. 4 cylinder or V6 engines only, naturally aspirated carburetion or factory fuel injection only. No turbo- or super-chargers allowed. No V8's, rotary or diesel engines allowed.
  6. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  7. Unrestricted exhaust can exit vertically out of hood, or down and under. No side pipes.
  8. Maximum 26-12.00x12 bar, lug or turf tread tires. No paddle tires.
  9. Driveshafts must be safety looped 360º, front and rear.
  10. Rear axle housing must be fastened rigid to frame of truck.
  11. Must have killswitch for ignition and electric fuel pump mounted in close proximity of drawbar/hitch.
  12. Safety backup light(s) shall be above the drawbar/hitch or in factory location and must illuminate white in color when transmission is in reverse.
  13. Maximum 18" drawbar/hitch height. Rear of loop or hole for hook must not extend past very rear portion of truck or rear bumper. Rear bumper can be used as the drawbar or hitch.


3,800 lb. 2WD Pro-Street Compact/Mini Truck Rules - (PROPOSED RULES) (Copied from IAMO Truck and Tractor Pullers rules.)

Maximum weight limit is 3,800 lb., including truck, weights, driver, helmet and fire suit, if worn.

Safety:

  1. All 2 wheel drive trucks must be equipped with wheelie bars. Wheelie bars must extend behind the rear tires with a maximum of 10" off the ground and have a 5 inch square pad with no rolling wheels. Wheelie bars must be mounted rigid with no movement and be able to support the entire rear weight of truck.
  2. Must have killswitch for ignition and electric fuel pump mounted in close proximity of drawbar/hitch.
  3. Safety backup light(s) shall be above the drawbar/hitch or in factory location and must illuminate white in color when transmission is in reverse.
  4. Must have a fire extinguisher in cab within driver's reach.
  5. Seat belt must be worn. OEM or 4 point harness minimum.
  6. Can use SFI-approved engine harmonic balancer or OEM harmonic balancer must be shielded 360 degrees with minimum 1/4" thickness steel.
  7. Steel flywheel and safety bell housing and block saver plates required.
  8. Automatics must have SFI-approved transmission shield and SFI-approved blanket covering torque converter and planetary gears.
  9. Engine-driven cooling fans must be shielded 360 degrees around fan blades.
  10. Shields are required for side of block from base of head to the top of the frame.
  11. Firewall and cab floor must have all unused holes patched or plugged.
  12. Shields around u-joints and driveline every three feet. 6" long, 2" maximum spacing around u-joint, shield thickness 3/8" aluminum, 5/16" steel. Vehicles must have driveshaft loops every three feet. Driveshaft must be round and 1/8" thick. All vehicles must have universal joint covered 360 degrees. 6" long centered on joint.

Engine:

  1. Engine designs are limited to “small block" configurations only. OEM factory production blocks only. Must have OEM factory casting numbers. No Bowtie, FRPP/Ford Motorsports, Direct Connection, or other aftermarket blocks allowed.
  2. 366 cubic inch maximum displacement. No tolerance.
  3. MSD 6AL with Rev Limiter required. No Options. Unit must be mounted in the engine compartment on passenger side firewall with rev limit chip facing up. Engines will be limited to 7,000 rpm.
  4. Camshafts must be hydraulic- or solid-flat tappet only. No roller camshafts allowed. No roller lifters.
  5. Cast iron cylinder heads only.
  6. Cast iron or cast aluminum intake manifolds allowed.
  7. One (1) four barrel naturally aspirated carburetor, Holley 4150 style, 850 CFM maximum with factory part number on choke housing. Choke housing must remain stock. Only square-flange carburetors allowed. Numbers on carburetor body must not be altered. All air must enter through the venturi. Carburetor “Go-No Go" tool must not exceed below factory casting ring in non modified venturi. Tool must not enter bottom base plate. All other alterations acceptable.
  8. Unrestricted exhaust must exit vertically or downward and straight back.

Fuel: Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.

Driveline:

  1. No cast iron flywheels or bell housings allowed. Steel flywheel, bell housing, block saver plates are required.
  2. Manual clutch must be contained in factory depth bell housing. Dual disc clutches are permitted. No centrifugal or crower glide style clutches allowed.
  3. Maximum one ton OEM automatic or manual transmission. Automatics may run stall converter and must have SFI approved shielding or SFI blanket covering converter and planetaries. OEM 4x4 transfer case allowed.
  4. One ton rear differential maximum.

Body:

  1. Factory OEM body, any OEM or aftermarket hood. Above hood air cleaner must be covered by non-functional scoop or hood enclosure.
  2. Firewall must remain and in original position with no large openings.
  3. Driver's seat must remain in original stock location.
  4. No fuel lines or fuel tanks allowed in driver's compartment.
  5. Battery must be in engine compartment or bed area and securely fastened.
  6. Top of bed must be covered if floor of bed is open.
  7. All factory OEM glass. NO Lexan or Plexiglas.

Frame:

  1. All trucks must be compact/mini body style. (S10, Ranger, D50, Comanche, etc.) No mid- or full-size trucks allowed. Exception: Pre-1955 model truck cab and beds are allowed. Any brand of engine allowed in any body.
  2. Compact/mini style factory frame only. Frame may be reinforced front to back. NO adding to the length of the frame.
  3. Maximum wheelbase length is 109-1/4" when measured from center of front axle to center of rear axle.
  4. Maximum length is 153" when measured from center of rear axle to front of weights.
  5. Rear weights must stay inside of bed.

Drawbar/Hitch:

  1. Minimum drawbar/hitch distance 39-1/4" measured from the center of rear axle rearward to hook point. Entire length of drawbar/hitch must be straight from the anchor point rearward to hook point.
  2. Drawbar/hitch anchor point can be no higher than 36" off the ground.
  3. Anchor pinhole will be 7/8" minimum.
  4. Maximum drawbar/hitch height is 24". Drawbar/hitch height can be adjustable, but must be stationary in all directions when pulling.
  5. Hook point hole shall be no less than 3.5" from front to back and no less than 3" side to side. 1" minimum thickness from edge to the hook point.

Tires:

  1. DOT-approved tires only. Unaltered tread pattern.
  2. Maximum tire size is 31-10.50x15
  3. Maximum wheel width is 10" when measured inside rim to rim.


GRIEVANCE / PROTEST POLICY:

Protesting a competitor's pulling vehicle is never an easy thing to do. It can cause hard-feelings, but it is allowed in the rules, and it helps to keep everyone involved in this sport fair and honest, and it shows good sportsmanship. The protester will not be considered a "troublemaker" either.

  1. Protest pertains only to: total weight of tractor w/driver, helmet and fire suit; fuel type; bore/stroke and/or valve sizes. Automotive Engine Mini Rods are excluded from bore/stroke and valve size protests. (A disqualification is not a protest and pertains to the actions of a tractor or puller on the track, how a tractor is set up, or part(s) of a tractor that can be seen in plain view and is an obvious violation of a rule.)
  2. Protester must be a registered puller of the same class as the tractor being protested against. Or for anonymity, protester can have the president of the HRGTPA protest the supposedly illegal tractor at any pull. Protester must still deposit $10.00 for the protest.
  3. Protester or president must notify the secretary of a proposed protest. The secretary will take it to the President and/or Head Safety Officer.
  4. Protester or president must deposit with secretary $10.00 in cash at the time of the protest.
  5. To prevent delays for other pullers ready to pull, all protests are to be taken place at the end of the pulling class or entire event. Protested tractor is to be placed separate from all other tractors in open view to everyone and guarded by an HRGTPA official to prevent any alteration of tractor, weights, fuel and/or engine.
  6. The results of the protest shall be kept private from all other pullers and will be returned to the secretary and given to the protester.
  7. One protest fee covers complete tractor inspection.
  8. Only the following will be present at the protest:
  9. All involved in protest will comply within these rules.
  10. Failure for tractor to comply with protested regulations will cause tractor to be ruled illegal.
  11. FIRST OFFENSE:
  12. SECOND OFFENSE:
  13. If the weight of tractor, fuel or engine is found to be legal according to the HRGTPA rules, the protested puller gets the protest fee.
  14. All grievances will be settled in a fair and business like manner. All decisions made by the officials will be considered just and final.
  15. Any questions on specifics or on the rules stated can be directed towards the President or Head Safety Official.


If you have any questions about these rules, and/or if you're interested in participating at the HRGTPA pulls, please contact Brian Miller | Phone: 1-573-256-0313 (shop) | 1-573-881-7229 (cell/text). Please call any time. If no answer, please try again later. (When speaking with Brian, please be patient because I stutter.) E-mail: pullingtractor@aol.com.

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