Missouri Mini Truck and Mini Rod Pullers Association

Official Sanctioning Classes and Rules/Regulations

This website was updated -/-/-. Click or tap HERE or HERE to refresh or reload this web page to see any changes. Changes made to these rules and each class are approved by members/pullers of the MMTMRPA at the official rules meeting. Return to MMTMRPA Home Page

SANCTIONING CLASSES:

  1. 1,850 lb. Limited Mini Rod [Jump down to rules for this class]
  2. 1,850 lb. Blown Mini Rod [Jump down to rules for this class]
  3. 1,950 lb. Mini Rod Tractor Class [Jump down to rules for this class]
  4. 2,050 lb. Mini Rod Tractor Class (2024 PPL rules) [Jump down to rules for this class]
  5. 2,900 lb. 2WD "Small Tire" Mini Truck [Jump down to rules for this class]
  6. 2,900 lb. 4WD "Small Tire" Mini Truck [Jump down to rules for this class]
  7. 2,900 lb. 2WD "Big Tire" Mini Truck [Jump down to rules for this class]
  8. 3,800 lb. 2WD Pro-Street Mini Truck [Jump down to rules for this class]

PULLER MEMBERSHIP and INSURANCE:

MMTMRPA membership dues for one year is $100.00 per individual, and $50.00 per family. Membership dues covers various operating expenses of the club. MMTMRPA carries $1,000,000 spectator coverage/liability insurance at all pulls. The pulling insurance covers the audience/spectators of the MMTMRPA pulls only, and not the members, participants or pullers of the MMTMRPA. 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 to pay the insurance for the following year. Please click or tap here to read, print-out and fill out the Membership Registration Form and RELEASE AND WAIVER OF LIABILITY AND INDEMNITY AGREEMENT. Pullers of other pulling associations/clubs are always welcome to attend the MMTMRPA meetings to voice their opinions, vote on the rules and participate at all MMTMRPA pulling events. Local vendors of mini pulling truck parts an products are also welcome to set up a table and sell, swap or trade their items at all MMTMRPA pulls at no charge.

PULLING/HOOK/ENTRY FEES and PRIZE MONEY:

Hook/Entry fees is $15.00 per pull. $10.00 will go toward the hook/entry fee, and $5.00 will go toward the pulling insurance, sled and equipment maintenance. In an effort to attract more pullers/trucks to participate at pulling events, the MMTMRPA require the promoter or sponsor(s) of the pull provide $100 per class for $300 total added prize money. This money will be added to the puller's usual $10 entry/hook fee and will be awarded/distributed to the qualifying winners of each classes. To make prize money payback in cash easier, please pay entry fee with $1 bills, $5 bills and very few $10 bills. Prize money per class will be paid back 100% in cash, as follows: Two entries per class pays 2 places: 1st receives 67%; 2nd receives 33% of the purse. Three entries per class pays up to 3 places: 1st receives 50%; 2nd receives 30%; 3rd receives 20% of the purse. Four entries per class pays up to 4 places: 1st receives 40%; 2nd receives 30%; 3rd receives 20%; 4th receives 10% of the purse. Five or more entries per class pays up to 5 places: 1st receives 30%; 2nd receives 25%; 3rd receives 20%; 4th receives 15%; 5th receives 10% of the purse. 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. Click or tap here for Prize Money Payback Charts. Please show up one hour before pull starts for registration, sign-up and weigh-in. It takes a minimum of 2 matching pulling trucks to make a class. If only one truck per class show up and there is no other matching truck(s) to compete against, it will pull for exhibition only. All exhibition pulls will take place at the end of the pulling event.

POINTS:

Points go to the pulling truck and registered driver. Pulling trucks will receive points for participating in sanctioned or sponsored pulls in the following manner: 5 points to show, 1 point to hook. If your truck 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. All pulls are to be held on dirt or clay tracks only. No asphalt or concrete pulling.
  2. Once the MMTMRPA 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.
  3. All pullers are encouraged to attend driver's meeting prior to start of the pulling event.
  4. Pullers, helpers or visitors shall not stand along side of track and block the sponsors', judges' or spectators' view of pulling trucks competing along entire length of track.
  5. Before hooking and after unhooking from sled, driver shall operate pulling truck at such a safe, slow speed as to be in full control at all times.
  6. All pulls shall start with a tight and untwisted sled chain, no intentional jerking will be permitted. If chain is purposely twisted, pulling truck will be disqualified.
  7. Blade-off truck will maintain smooth track conditions after each truck pulls to ensure fair competition for all entries.
  8. As soon as each truck have finished pulling, they shall exit the track and return to pit area.
  9. Only the flag person is allowed within the track boundary lines during the pull.
  10. No trophies or wall plaques will be given by MMTMRPA at sanctioned pulls. Sponsors of events may award trophies or wall plaques if they choose.

Sign-In:

  1. The MMTMRPA table will be available to sign-in participants and their pulling trucks one hour before scheduled pull time.
  2. Random drawing of a number by each puller will determine the line-up position for each pulling truck.
  3. All pullers will sign-in with the name of driver of pulling truck and name of pulling truck.
  4. 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.

Line Up List (to avoid delays):

  1. It's the pullers' responsibility to check the line-up list in the order of their pulling truck(s) for each class.
  2. All pulling trucks 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.
  3. 1st class will start lining up and get ready to weigh-in 15 minutes before the scheduled start time.
  4. 1st puller in the class will be weighed and ready to hook by the start time next puller will be ready to weigh.

Scales:

  1. No one under the age of 18 will be allowed to operate the MMTMRPA scales.
  2. Scales will be placed on a flat, level surface in close proximity to the track in the direction of the sled.
  3. Scales will open one hour before scheduled pull time for operators to pre-check the weight of their pulling truck and make necessary adjustments.
  4. Scales will close to all but the class pulling 15 minutes before the first class starts to allow the pulling trucks sufficient time to line up for the official weigh-in just before pulling.
  5. Zero tolerance will be allowed on weight limit. Pulling trucks will be weighed just prior to hooking to the sled. Trucks pulling light (under weight limit) will be the operator option.

General Rules for Pulling Sled:

  1. Miller's self-propelled sled will be used at all MMTMRPA pulls.
  2. The small steering wheels (toward front of sled) shall remain in the most upright position at all times when pulling trucks are hooked to sled. An indicator light on the right side of the sled operator and the main red light will illuminate/flash when the wheels/tires are lowered at any time.
  3. An indicator light on the left side of the sled operator will illuminate/flash while the weight box control is disengaged.
  4. The weight box travel distance speed and/or any added weight to the sled shall remain as is at all times when a class of pulling trucks are hooked to the sled. If necessary, regearing of the weight box travel distance speed and/or added weight to the sled will be made as classes of pulling trucks change.
  5. Miller's sled has a powerful electric motor (6 volt Ford truck starter motor) to pull the kill switch on the pulling truck with a push button switch next to the operator in case truck goes out of control or hitch and/or chain breakage.
  6. The MMTMRPA will provide two (2) filled fire extinguishers located inside front shield of sled.

General Rules for Pulling Trucks:

  1. 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.
  2. Pulling truck 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 trucks may not step down a class.
  3. If all trucks have pulled and a pulling truck is still not in position, the truck will have 3 minutes to get into position or be disqualified.
  4. If the 1st truck in a class goes out of bounds at any point along the track, the puller still has the option to re-pull.
  5. Any pulling truck 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 truck.
  6. If a driver raises his/her hand out the door window 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 truck will be allowed to re-pull.
  7. 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.
  8. Pullers has the option to re-pull if the pulling truck goes out of bounds less than the 75 foot line.
  9. Pulling truck will be disqualified if it goes out of bounds of the track past the 75 foot line, or if any part of truck tire touches boundary line. Flag person's decision will be final on all out-of-bounds ruling.
  10. All weights, weight brackets or boxes must be safely secured to pulling truck. Any weights falling off a truck while hooked to sled will be cause for disqualification. If any weight(s) or part of truck falls off during the pull, the truck will be disqualified. There is no distance consideration, the truck 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.
  11. If two or more pulling trucks goes out the gate for a full pull, a pull-off will be held after the last truck in that class has pulled. The truck will only hook once, and there will be no options to re-hook in the pull-off. I.E.: In a pull-off, if truck only pulls a distance of 70 feet, that distance will be recorded.
  12. If there is a tie for first place, there will be a pull-off to determine the winner.
  13. If there is a tie for second place, they will split the 2nd and 3rd place money 50%.
  14. The pull for the pulling truck will not end until the truck is unhooked from the sled.
  15. 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).
  16. Flag person (and pullers) should hold hole-digging by the pulling truck tires to a minimum.
  17. Drivers must have at least on hand on steering wheel at all times while pulling.
  18. For safety - In case of chain or hitch breakage, flag person shall stand to one side of the track, and not directly in front of pulling truck while truck is going down the track. This will be strictly enforced! If flag person do not obey this rule, he/she will be replaced.
  19. Any puller attempting to pull before flag person displays the green flag will be subject to disqualification.
  20. All pulling trucks must be operated in a safe manner on the track and slow speed in the pit area at all times.
  21. Flag person must be minimum 18 years of age and be familiar with all MMTMRPA rules.
  22. 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, driver will not be allowed to participate. (See safety requirements and special requirements in each individual class.)
  23. To encourage sponsor approval and chance of returning to the pull site the following year, all pullers, helpers and visitors shall show good sportsmanship at all pulls. All drivers should be clean in appearance and neatly attired. Pulling trucks should be clean and painted. There shall be no loud profanity, arguments or fighting by 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! If any puller has a problem with another puller, please present it to the MMTMRPA President.
  24. Pullers will refrain from consuming alcoholic beverages and/or be under the influence of illegal drugs, before and during any sanctioned pulling event or official meeting. Pullers shall not smoke while pulling. This rule will be strictly enforced at all pulls and meetings.
  25. Any pulling truck 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 puller will be charged $5.00 each.
  26. Any violations of the above rules will be subject to protest, disqualification or ineligibility to pull.

Inspection and Safety Requirements for All Pulling Trucks:

  1. Safety Officers will inspect all pulling trucks at the practice/test pulls or before allowing a pulling truck to pull at the first pull attended. Pulling truck will be marked and signed off by the safety official and puller to verify it passed inspection according to the rules in its class. If a pulling truck doesn't pass the safety/tech inspection for whatever reason, it will not be allowed to pull. NO EXCEPTIONS!
  2. All pulling trucks must have a working break-away kill switch attached to the rear of the truck and must be easily accessible. Engine must die immediately when plug is pulled.
  3. All pulling trucks 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 truck.
  4. All pulling trucks must have two sled bump bars incorporated with the frame of the truck. Must keep sled from hitting dolly wheels or pads.
  5. All drawbars must be stationary in all directions and made of steel.
  6. All throttles must be spring loaded. Engine must automatically return to idle when pressure is released from throttle device.
  7. All trucks must have clutch and flywheel shielded 360°. The clutch shielding must be minimum 1/8" steel or 3/16" aluminum.
  8. All pulling trucks must be equipped with working brakes.
  9. Steering on all pulling trucks 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 truck will not pass safety inspection.
  10. Fuel lines and hoses must be in good condition on all pulling trucks. 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!
  11. No pressurized fuel tanks, no methane, propylene oxide or nitrous oxide allowed in any class.
  12. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.

1,850 lb. Limited Mini Rod Rules | Top of Page

  1. Maximum weight: 1,850 lb. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  2. All drivers must have a valid state-issued driver's license and DOT-approved helmet, with chin straps properly fastened.
  3. Not to exceed 6' in width and 8' in length from center of rear axle to furthest point forward, including weights and fuel tank.
  4. All mini rods must have a kill switch with a minimum 1-1/2" ring capable of shutting off engine in case of chain breakage or hitch breakage. Kill switch must be attached to the center rear of the mini rod behind the driver and in a position so it can be easily hooked and unhooked. The kill switch shall pull at no less than 8 lbs. and no more than 25 lbs.
  5. All mini rods will have a battery disconnect switch located within the driver's reach and must be easily accessible by track officials in case of a problem. This switch must be in battery line before going to the starter and kill all power to the vehicle.
  6. Maximum tire size 34.0 x 15.0.
  7. All mini rods must have a bright backup light, white in color. Light must illuminate when transmission is placed in reverse.
  8. Engines must be covered from top of oil pan to bottom of the cylinder heads and the length of the engine block with 16 gauge steel or aluminum.
  9. Exhaust pipes must extend no less than 12" above the bend. They can lay out no more than 10 degrees and back no more than 30 degrees.
  10. All throttles must pull forward and return to idle. No hydraulic or air throttles.
  11. All vehicles must have2 return springs on throttle.
  12. Rear tires must have fenders that are a minimum of 4", sides a minimum of 18" long.
  13. No pressurized fuels allowed.
  14. ENGINES MUST BE SMALL BLOCK DESIGN ONLY.
  15. No turbochargers or superblowers allowed.
  16. Must have roll cage or roll bar, with seat belt or safety harness.
  17. Contest is open to entries with rubber tires.
  18. No 4WD’S permitted.
  19. No dual wheels, tire studs, cleats, chains or paddle tires allowed.
  20. All power must be transmitted through the rear wheels.
  21. All belts and clutches must be adequately shielded by a board-approved shield.
  22. It is mandatory that all vehicles, mini rods, mini rods and trucks have an adequate safety tip over device (wheelie bars) to prevent it from turning over.
  23. Wheelie bars and weights must be securely attached so as not to interfere with the hooking and unhooking to the sled chain to the drawbar.
  24. Drawbars are to be stationary in all movement and are to be constructed from minimum 3/16" steel and have a minimum 1 1/2" hole.
  25. Maximum hitch height is 13" from top of hitching device parallel to the ground. All hitches will be checked before pulling.
  26. Point of hitch shall not extend beyond vertical plane of the rear tires. Hitch must be constructed in such a manner as not to restrict fast hooking and unhooking. Maximum depth from point of hook to back of drawbar is 3/4" minimum, depth is 1/2".
  27. No portion of the entry shall interfere with the hook of the sled during the pull.
  28. All entries must be equipped with working brakes and reverse.
  29. All vehicles must have a minimum of 2 pound ABC with gauge dry chemical fire extinguisher secured to the vehicle and convenient to the driver.
  30. All driveline u-joints to be enclosed 360 degrees. Shield is to be 1/16" thick steel or 1/8" aluminum. Shield should be close enough to joint to restrain any broken parts. Joint should not be visible from side, top, or bottom. Each drive shaft must have a minimum of 2 loops. If vehicle has a shaft between transmission and rear end no longer than 24" on loop properly centered. 2 piece shafts must have 4 loops. Loop location to be no less than 6" and no more than 12" on solid end of shaft and 1" past stud on end with slip joint or 3 loops evenly spaced so that if the slip joint breaks the shaft cannot drop. Loop material made of no less than 3/4" wide 1/8" thick. Maximum clearances to be 2" horizontally and 8" both ways vertically.
  31. The use of torque converters and automatic shifts, etc. will be permitted.
  32. All automatic transmissions must have a park/neutral safety switch and manuals must have a clutch switch.
  33. Automatic transmissions must have approved blankets or be shielded 360 degrees with 1/4" steel or aluminum, minimum 4" wide. Any substitute for the above safety equipment must be approved by the officials.
  34. All flywheels must have a steel flywheel with SFI approved housing or the housing must be shielded 360 degrees round and across the front with 1/4" steel or 3/8" aluminum.
  35. A deflection shield is required on both sides of all engines. Shield must extend the complete length of block and be securely fastened. Shielding on engines must extend from base to head or the uppermost point of the piston travel to 2" below bottom center of crankshaft throw and be securely fastened. Shield is to be made of aluminum or steel, a minimum of 060 thick or blanket material.
  36. All vehicle engines equipped with a harmonic balancer or steel hub shall be shrouded with 14" steel or 3/8" aluminum, no more than 1" away in direction of rotation, 360 degrees, to be securely fastened with a minimum of 2 ears, each extending 1" in front of hub.
  37. Engine-driven cooling fans are NOT allowed.
  38. All drive line brakes shall be shielded 360 degrees with 1/4" steel 4" wide.
  39. If you are 1st puller and you pull out of bounds you do not get the option of a repull, also if you are 1st puller and want to take advantage of your repull option you must tell the officials immediately following your pull you cannot wait for others to pull before stating you want to repull.

1,850 lb. Blown Mini Rod Rules (Copied from Moody Sled Team 4/12/20) | Top of Page

  1. Maximum weight: 1,850 lb. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  2. All drivers of the mini rod class must have a valid state-issued driver's license and helmet, with chin straps properly fastened.
  3. Mini rods are not to exceed 6' in width and 8' in length from center of rear axle to furthest point forward, including weights and fuel tank.
  4. A kill switch must be attached to the center of the rod behind the driver and in a position so it can be easily hooked and unhooked. The kill switch shall have no less than 8 lb. and no more than 25 lb.
  5. All mini rods will have a battery disconnect switch located within the drivers reach and must be reached easily by track officials in case of a problem. This switch must be in battery line before going to the starter and kill all power to the vehicle.
  6. Maximum tire size 31x15. 50x15.
  7. All mini rods must have back up lights.
  8. Engines must be covered from top of pan to bottom of the heads and the length of the engine with gauge steel or aluminum.
  9. Exhaust pipes must extend no less than 12" above the bend. They can lay out no more than 10 degrees and back no more than 30 degrees.
  10. All throttles must pull forward and return to idle. No hydraulic or air throttles.
  11. All vehicles must have 2 return springs on throttle.
  12. Rear tires must have fenders that are a minimum of 4", sides a minimum of 18" long.
  13. No pressurized fuels allowed.
  14. ENGINES MUST BE SMALL BLOCK DESIGN ONLY.
  15. Can use turbos or blowers (all blowers must be covered), all turbo charged mini rods must have safety shields that are a minimum of 16 gauge steel or aluminum, all blower type motors must have retention devices properly attached.
  16. Must have SFI approved shatter proof belhousing or blanket.
  17. Must have roll cage or roll bar, with seat belt or safety harness.
  18. Contest is open to entries with rubber tires.
  19. No 4WD’S permitted.
  20. No dual wheels, tire studs, cleats, chains, or paddle tires allowed.
  21. All power must be transmitted through the wheels.
  22. All belts and clutches must be adequately shielded by a board approved shield.
  23. It is mandatory that all pulling vehicles have an adequate safety device (wheelie bars) to prevent it from turning over.
  24. Wheelie bars and weights must be attached so as not to interfere with hooking and unhooking of the sled chain to the drawbar.
  25. Drawbars are to be stationary in all movement and are to be constructed from minimum 3/16" steel and have a minimum 1-1/2" hole.
  26. Maximum hitch height is 13" from top of hitching device parallel to the ground. All hitches will be checked before pulling.
  27. Point of hitch shall not extend beyond vertical plane of the rear tires. Hitch must be constructed in such a manner as not to restrict fast hooking and unhooking. Maximum depth from point of hook to back of drawbar is 3/4" minimum, depth is 1/2".
  28. No portion of the entry shall interfere with the hook of the sled during the pull.
  29. All entries must be equipped with working brakes and reverse.
  30. All vehicles must have a minimum of 2 pound ABC with gauge dry chemical fire extinguisher secured to the vehicle and convenient to the driver.
  31. All driveline u-joints to be enclosed 360 degrees. Shield is to be 1/16" thick steel or 1/8" aluminum. Shield should be close enough to joint to restrain any broken parts. Joint should not be visible from side, top, or bottom. Each drive shaft must have a minimum of 2 loops. If vehicle has a shaft between transmission and rear end no longer than 24" on loop properly centered. 2 piece shafts must have 4 loops. Loop location to be no less than 6" and no more than 12" on solid end of shaft and 1" past stud on end with slip joint or 3 loops evenly spaced so that if the slip joint breaks the shaft cannot drop. Loop material made of no less than 3/4" wide 1/8" thick. Maximum clearances to be 2" horizontally and 8" both ways vertically.
  32. The use of torque converters and automatic shifts, etc. will be permitted.
  33. All automatic transmissions must have a park/neutral safety switch and manuals must have a clutch switch.
  34. Automatic transmissions must have approved blankets or be shielded 360 degrees with 1/4" steel or aluminum, minimum 4" wide. Any substitute for the above safety equipment must be approved by the officials.
  35. All flywheels must have a steel flywheel with a SFI-approved bellhousing or the housing must be shielded 360 degrees and across the front with 1/4" steel or 3/8" aluminum.
  36. A deflection shield is required on both sides of all engines. Shield must extend the complete length of block and be securely fastened. Shielding on engines must extend from base to head or the uppermost point of the piston travel to 2" below bottom center of crankshaft throw and be securely fastened. Shield is to be made of aluminum or steel, a minimum of 060 thick or blanket material.
  37. All vehicle engines equipped with a harmonic balancer or steel hub shall be shrouded with 14" steel or 3/8" aluminum, no more than 1" away in direction of rotation, 360 degrees, to be securely fastened with a minimum of 2 ears, each extending 1" in front of hub.
  38. Engine-driven cooling fans are NOT allowed.
  39. All drive line brakes shall be shielded 360 degrees with 1/4" steel 4" wide.
  40. If you are 1st puller and you pull out of bounds you do not get the option of a repull, also if you are 1st puller and want to take advantage of your repull option you must tell the officials immediately following your pull you cannot wait for others to pull before stating you want to repull.

1,950 lb. Mini Rod Tractor Class (Copied from Illiana Pullers Association, 2021) | Top of Page

Limitations

  1. Modified minis are limited to a maximum of 575 cu. In. of naturally aspirated engine or 380 cu. In. of 6-71 supercharged small block w/10% overdrive.
  2. Naturally Aspirated engines less than 512 CID are allowed to weigh 2,000 lbs.
  3. Naturally Aspirated engines over 512 CID and supercharged engines are allowed to weigh 1,950 lbs.
  4. All engines are limited to (2) valves per cylinder.
  5. Engines are limited to (1) spark plug per cylinder

Driveline Shielding

  1. Modified Minis must meet general tractor shielding and safety criteria.
  2. All drive train, excluding additional manual transmission, must be enclosed in 5/16" minimum steel or 3/8" aluminum, round, inside diameter not to exceed 2" more that the outside diameter of the largest universal joint, fastened every 6" or closer, with 3/8"-inch or larger bolts, Grade #5, or butt and seam welded, and securely mounted to vehicle's frame. Applies to all vehicles with exposed driveshaft. No more than ¼ -inch of end of driveline shall be visible with driveline shielding in place.
  3. Note: If U-joints are used in any drive shaft application, the shielding must be 5/16-inch steel or 3/8-inch aluminum with 1/8-inch steel insert in aluminum. The insert must be a minimum of 6" wide.
  4. All Modified and Modified Mini mounts, two rear engine mounts, and a support saddle for rear of transmission, with 1/2" inch maximum clearance; OR
  5. Two front engine mounts, support saddle at rear of engine, with 1/2" clearance, and a mount at rear of transmission.
  6. Note: This is to prevent engine or transmission from dropping if breakage occurs.
  7. No portion of the tractor shall exceed 8 feet forward of the center of the rear wheel.
  8. Tread width (foot print) not to exceed 6 feet in width.

Drawbars

  1. Drawbar height to be 13"
  2. Drawbar length to be no shorter than 6".
  3. Drawbar and hitching device to be one-piece construction, with a minimum of 1" solid steel material.
  4. No hollow tubing is permitted.
  5. Front part of drawbar is to have a minimum of Â1/2-inch cross sectional thickness to remain on the front side of hole where drilled.
  6. Minimum 1/2" pin.
  7. Drawbar height adjuster or hold up/down device to be no more than 5" from hook point. There must be a minimum of 1/2" metal remaining where hole is drilled. Hose clamps may not be used for any drawbar related devices.
  8. The drawbar receiver or the material where the front of the drawbar is attached must have a minimum of 1/4" thick metal on each side of the horizontal pin drawbar.

Point of hook

  1. The point of hook is to have a minimum of a 2-inch round hole, maximum of 2-1/4" hole.
  2. The thickness of material around the hole must be a minimum ¾-inch thick.
  3. Point of hook to be no more than 3/4-inch cross sectional thickness.

Tires

  1. Maximum tire size is 18.4 x 16.1 with a maximum of 143-inch circumference when mounted on an 18" wide rim and inflated to 10 PSI. The ground patch is not to exceed 19" on original tread.
  2. No tire repairs (boots, section repair, vulcanized spots, etc.;) will be allowed.

Skid Plate

  1. Skid plate must be of the two types listed below:
  2. Skid plate mounted to center of axle must be a minimum of 10" wide with rolled edges both front and rear. Plate must be a minimum of 4" in length. Plate must be centered and securely mounted to front axle and/or frame.
  3. Skid plate mounted inline with each frame rail (on both sides) equal in strength to frame rail material.
  4. Skid plate surface to be minimum of 2" wide and 10" long with a minimum 2" curve when measured from the front most part of rolled edge.
  5. Note: Both types must be able to support the weight of the front end when checked with a jack. Maximum ground clearance not to exceed 2" with front tires in normal operating position.

2,050 lb. Mini Rod (Copied from PPL 2024 rules) | Top of Page

  1. Maximum weight 2,050 lb. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  2. Any automotive type engine, with only two valves per cylinder and must accept a stock crankshaft. Maximum 575.3 CID.
  3. Maximum super charger limit is 14-71, limited to 45%. Single staged turbochargers permitted.
  4. Turbocharger systems limited to a single 130mm or twin 88mm. Mechanical boost controls only permitted with a single regulator. Turbocharger safety equipment required.
  5. Turbocharger (s) (regardless of size or division) or atmospheric turbocharger(s) on a multi turbo setup must have a Kevlar lined containment device.
  6. A manufactured exhaust wheel cage assembly must be used in and/or fastened to the exhaust housing with one set of 1.2 inch bolts installed 90 degrees of each other immediately (may be in pipe) as close to the cage as possible.
  7. No portion of tractor shall exceed 8 feet forward of the center of the rear axle. Width shall not exceed 6 feet in width.
  8. Front skid plate required and must be made from 1/8-inch steel and extend frame rail to frame rail and solidly attached under the front of the chassis. Skid plate formed at 90 degrees with a minimum 2-1/2 inch radius at bottom front of skid plate. Skid must extend rearward to the center of the front axle.
  9. Maximum tire size is 18.4X16.1 with a maximum of 143-inch circumference when mounted on an 18" wide rim and inflated to 10 PSI.
  10. Maximum of 13" hitch height. Minimum length of 6Æ".
  11. Planetary Axle Chassis. Transmission fixture to SFI bellhousing, per manufacturer's requirements. Minimum of 2" total bolt material. SCS and TRB 3", 8-3/8" grade 8 studs. Lenco 2.1875", 5-7/16" grade 8 studs. ProFab 2", 4-1/2" grade 8 studs.

2,900 lb. "Small Tire" 2WD Mini Truck Rules - (PROPOSED RULES) | Top of Page

  1. All trucks must be lightweight, compact body style. (S10, S15/Sonoma, Ranger, D50, Comanche, etc.) Exception: Pre-1955 model 1/2 ton trucks are allowed. Vehicle must appear to be a pickup truck. Due to their excessive weight, no mid- or full-size trucks allowed.
  2. Maximum weight: 2,900 lbs. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  3. No restriction on the type of transmission, rear end or chassis/frame.
  4. Drivers must be minimum 16 years of age with a valid state-issued driver's license.
  5. Drivers must wear DOT-approved helmet and use seat belt when pulling.
  6. Filled fire extinguisher must be mounted in cab within driver's reach and/or outside rear of cab within easy reach.
  7. 4 cylinder or V6 engines only, naturally aspirated carburetion or factory fuel injection only. No turbo- or super-chargers allowed. No V8's, rotary, aircraft or diesel engines allowed.
  8. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  9. Unrestricted exhaust can exit vertically out of hood or down, under and rearward. No side pipes.
  10. Maximum 26-12.00x12 bar, lug or turf tread tires only. No paddle tires.
  11. Driveshaft must be safety looped 360º, front and rear.
  12. Rear axle housing must be fastened rigid to frame of truck.
  13. 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.
  14. No headlights on when hooked to sled.
  15. Must have a break-away kill switch for ignition and electric fuel pump mounted in close proximity of drawbar/hitch.
  16. 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. No trailer receiver hitch on any truck.

2,900 lb. "Small Tire" 4WD Mini Truck Rules - (PROPOSED RULES) | Top of Page

  1. All trucks must be lightweight, compact body style. (S10, S15/Sonoma, Ranger, D50, Comanche, etc.) Exception: Pre-1955 model 1/2 ton trucks are allowed. Vehicle must appear to be a pickup truck. Due to their excessive weight, no mid- or full-size trucks allowed.
  2. Maximum weight: 2,900 lbs. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  3. No restriction on the type of transmission, rear end or chassis/frame.
  4. Drivers must be minimum 16 years of age with a valid state-issued driver's license.
  5. Drivers must wear DOT-approved helmet and use seat belt when pulling.
  6. Filled fire extinguisher must be mounted in cab within driver's reach and/or outside rear of cab within easy reach.
  7. 4 cylinder or V6 engines only, naturally aspirated carburetion or factory fuel injection only. No turbo- or super-chargers allowed. No V8's, rotary, aircraft or diesel engines allowed.
  8. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  9. Unrestricted exhaust can exit vertically out of hood or down, under and rearward. No side pipes.
  10. Maximum 26-12.00x12 bar, lug or turf tread tires only. No paddle tires.
  11. Driveshaft must be safety looped 360º, front and rear.
  12. Rear axle housing must be fastened rigid to frame of truck.
  13. Must have a break-away kill switch for ignition and electric fuel pump mounted in close proximity of drawbar/hitch.
  14. 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.
  15. No headlights on when hooked to sled.
  16. 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. No trailer receiver hitch on any truck.

2,900 lb. "Big Tire" 2WD Mini Truck (Copied from Moody Sled Team 4/12/20) | Top of Page

  1. Contestants must be 18 years of age or older or 16 years of age with parent or guardian’s signature. Contestant also must have a valid state-issued driver's license.
  2. Maximum weight: 2,900 lbs. with driver. NO PASSENGERS (DRIVER ONLY) NO EXCEPTIONS.
  3. No restriction on the type of transmission, rear end or chassis/frame. Vehicle must appear to be a truck.
  4. All vehicles must be in neutral or park while being hooked and unhooked and must have a working white light for reverse while backing. No revving of motors.
  5. No headlights on when hooked to sled.
  6. All vehicles must have an automatic ignition kill switch.
  7. All vehicles must have a minimum 2 lb. ABC chemical fire extinguisher with gauge dry secured to the vehicle and convenient to the driver.
  8. All vehicle engines equipped with a harmonic balancer or steel hub must be shrouded with 1/4" steel no more than 1" away in any direction of rotation, 360 degrees to be securely fastened, with a minimum of 2 ears, each extending 1" in front of the hub. A bolt in the crankshaft to hold damper pulley in place is also required.
  9. A deflection shield is required on both sides of all engines. Shield must extend the complete length of the block and be securely fastened. Shield to be made of . 060 thick aluminum or safety blanket material, shielding on all engines must extend from base to head or the upper most point of piston travel to 2" below bottom center of crankshaft throw and be securely fastened.
  10. Seat belts are required. Seat belt must be fastened across driver's hip and helmet must be worn while pulling.
  11. Drawbar must be equipped with steel hitch no less than 1/2" or no more than 3/4" thick with a minimum opening of 3" in diameter. A 3" hole must be within drawbar to be stationary in all movement. Maximum length is no more than 3' long, no shorter than 2',6" from center of rear axle. Maximum height shall be 26" from top of hitch parallel to the ground. Hitch must be constructed for fast hooking and unhooking. Pulling point must be within 1-1/2" from back edge of hitch and no less than 1/2". No trailer receiver hitch on any truck.
  12. All driveline u-joints must be enclosed 360 degrees shield 1/16" steel or 1/8" aluminum. Shields must be close enough to joint to restrain any broken parts. U-joint shall be fully shrouded and not visible from side, top or bottom.
  13. Each driveshaft must have a minimum of 2 safety loops. If vehicle has a shaft between transmission and rear end no longer than 24" one loop properly centered. Two piece shafts must have 4 loops.
  14. Loop location to be no less than 6" and no more than 12" on solid end of shaft and 1" past stud on end with slip joint, or 3 loops evenly spaced so that if slip joint breaks shaft cannot drop.
  15. Loop material shall be made of steel no less than 3/4" wide, 1/8" thick, if aluminum minimum of 1/4" thick. Maximum clearances to be 2" horizontally and 8" both ways vertically.
  16. If original vehicle has doors, they must be kept on, closed and fastened. Flip top body’s must have an escape hatch in the roof, front or back.
  17. If battery is inside cab, it must be safely secured and enclosed.
  18. All vehicles with a clutch-type flywheel must have SFI approved housing or housing must be shielded 360 degrees with 1/4" steel automatic transmissions must be shielded 360 degrees with 1/4" steel around flywheel area.
  19. Hand throttles must be spring loaded. Motor must come to an idle when hand is taken off the throttle. Foot throttle must be equipped.
  20. All vehicles must have wheelie bars. Wheelie bars must be able to support the weight of the vehicle. Wheelie bars must not extend further back than the rear of the vehicle and parallel to the ground.
  21. Vehicles must have a nice appearing cab and cargo bed or flatbed.
  22. No fuel tanks, radiators, water hoses, fuel pressure gauges, fuel pumps, fuel lines allowed inside cab.
  23. Maximum tire size is 31-15.50x15. Tractor lug type tire tread will be allowed. No duel tires, tire studs, chains or paddle tires.
  24. Maximum length of vehicle is 15' including weights.
  25. Engine size shall not exceed 400 CU. IN. small block. Cast iron blocks and heads only.
  26. All exhaust must exit vertically or straight back under the truck.
  27. No injectors, blowers, or turbo, Single carb only.
  28. All driveline brakes shall be shielded 360 degrees, 1/4" steel, 4" wide.
  29. Engine-driven cooling fans are NOT allowed.
  30. If you are 1st puller and you pull out of bounds you do not get the option of a repull, also if you are 1st puller and want to take advantage of your repull option you must tell the officials immediately following your pull you cannot wait for others to pull before stating you want to repull.

3,800 lb. 2WD Pro-Street Mini Truck Rules - (Copied from 2018 IAMO Truck and Tractor Pullers' website.) | Top of Page

PROTEST PROCEDURE:

  1. All MMTMRPA members have the right to protest any competitor's pulling vehicle in their class.
  2. Protests must be made with a Tech Inspector and/or the President before the next class starts or before the pull is over.
  3. If a certified vehicle is protested for weight, there must be three (3) vehicles, in that weight class taken to the scales to be weighed.
  4. The protest fee for an engine or chassis inspection is $500.00
  5. The protest fee for a fuel or water inspection is $100.00.
  6. Engine, chassis, fuel or water protest fee must be paid up front before protest will be considered.
  7. If the protested vehicle is found to be legal, the owner of the protested vehicle gets the fee. If the protested vehicle is found to be illegal, the protester gets the fee back.
  8. Two (2) specific items can be inspected by the Tech Inspector per protest.
  9. Protester will remain present during inspection. The party being protested must make vehicle available for inspection.
  10. Any protest of a turbocharger will result in an inspection of both the protested turbo and the protester's turbo.
  11. If protested vehicle fails to comply with the cubic inch limit or inspection, they will be disqualified for one year and one day.
  12. Failure or refusal to allow the inspection of protested vehicle will be considered an illegal vehicle.

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