General Rules These rules shall cover all classes of pullers unless specifically noted. 1. All vehicles covered in this rulebook shall be radio controlled 1/10 scale cars, trucks or tractors and will have a body to resemble a car, truck, tractor, or full-size vehicles. Vehicles must run in classes according to their factory production vehicle classification, i.e. 2wd factory production vehicle runs in 2wd classes, 4wd factory production vehicle runs in 4wd classes. The following classes are limited to run factory production vehicles only: Stock, Super Stock, and Modified. 2wd and 4wd classes compete separately. Specifications for both 2wd and 4wd in each class appear on their respective pages of this rulebook. Differentials may be locked, and ball bearings are acceptable in all classes. 2. All classes are subject to any combination of pre and post competition inspection with weigh in. Each vehicle must pass through tech and if found to be illegal, that vehicle is disqualified for that round. 3. (Track Official Inspection) Vehicle may be inspected at any time by the head track official if suspected of a violation. Anyone refusing to submit vehicle in question for inspection will be disqualified from event and forfeit entry fees. The ruling of the head track official is FINAL. 4. Ties will be broken by adding weight to the sled and re-pulling. Batteries may be recharged. 5. There cannot be a protest against the Head Track official or their staff. The decisions of the Head Track Official or Pull Director are final and cannot be overruled. 6. Any participant may request an inspection of a vehicle in his/her class but ONLY if suspected of a rule violation. Participant must register a written complaint with the Pulling Director along with a $30.00 protest fee in cash. The owner of the vehicle in question will be notified of the complaint by the Pull Director. At that time the vehicle will be placed in impound. If disassembly is required, the owner will do any disassembly of their vehicle under the supervision of the Pull Director. If the vehicle in question is found to be legal, the owner of the vehicle will receive the protest fee. If the vehicle in question is found to be illegal the protest fee will be returned to the person filing the protest and the vehicle would be disqualified from the event and the owner would forfeit the entry fees. The decision of the Pull Director is final. 7. No metal or fiber spikes, tire chains, or foreign material to be attached in any matter to or injected into tires. Liquid or chemical tire compounds are not permitted in any class. 8. All weights must be firmly attached. External weights must be of scale appearance and proportionate to that vehicle size (EXCEPT FOR STOCK MONSTER CLASS). Weights may not extend more than ½ inch past either edge (width) of the body (EXCEPT FOR STOCK MONSTER CLASS). Vehicles using a scale tractor body may exceed the width limit, but no weights are to exceed the vehicle's width. Weights may not exceed 3 inches in height. Weight bar and/or weights must have a minimum of ¼ inch clearance when set on a table. All four wheels must contact the table surface. All batteries, motors and non-scale appearing weights must be located under the body of the vehicle. The body may be cut to allow for the wheel openings, exhaust, starter drive access and for clearance of oversized motor housings. Custom work is allowed. Unless it is listed differently in the class rules all dimensions include all of the vehicle components as it is to be competed with. 9. Any production R/C vehicle shall be reviewed by the Pull Director officers and approved for a particular class based on their review. 10. Experimental vehicles not specifically addressed by this rulebook are permitted to compete as exhibition only. The decision to allow these vehicles to compete in their own class is left up to the Pull Director. 11. No automatic transmissions or transmissions that shift while in motion are allowed. Except where stated in class rules. 12. There will be no verbal or physical abuse directed towards any track officials, tech staff. There will be no verbal or physical abuse directed towards any competitor by any officials or other competitors. No alcohol or drugs are allowed in the event area during competition hours. Anyone found to be soliciting drugs or alcohol will be asked to leave. You will be disqualified from the event without refund. 13. All cooling devices must be fully enclosed and securely mounted. 14. No truck maximum per person per class. 15. Pulling vehicles can enter multiple classes. A single chassis cannot register in one class more than once. Vehicle must meet all specific class rules. 16. All pullers entered to pull will help marshal the pull sled if they are physically able. 17. You may not tech your own vehicle or measure its distance in pulling. PULLING TRACK LAYOUT GUIDE Track total length is 40 ft with a 5 ft pull back area and a 5 ft runoff area. Pulling distance is 30 ft. Track width is 4 ft. PULLING GENERAL RULES 1a. The first puller, on dirt, in round one only, in every class can decline the pull. 1b. Every puller has the option to restart his/her pull if he/she stops before the front of the sled reaches the 10-foot default line in round 1 only, one extra pass only. If this option is taken you must re-hook immediately you may adjust your vehicle. 1c. You will be allowed two minutes to start your pull once the Track Official calls you to the track. The exception to the two minute limit is if the participant is required at another track. 1d. If your vehicle does not make it off the line, you will have the opportunity to make vehicle adjustments on or off the track. When pre-tech is used, if you make any changes to the vehicle, the vehicle must have re-inspection by tech officials before second attempt is made. If vehicle leaves the track surface for repairs, you will be rotated down in the field and if you are the last puller you will have five minutes to return or you will be disqualified for that round. The repair procedure will be announced at the drivers meeting. 1e. Once the sled weight is set it must remain until the pull-offs. 2 The order of pullers in each class may be determined by the order of registration. Random drawing at the event is preferred. This is up to the host club or Event Director. 3. Start and finish of each pull shall be determined by an official starter using an audible or visual signal such as a whistle, flags, and lights. The type of signal will be announced at the drivers meeting. 4. All sleds are to be chain drive except for the Digger class may use a string drive sled. Sleds are not allowed to lock up before the finish like. The pull chain will be 8” long and attached to the center of the skid plate no higher than ¾” above the track surface. The length of the pull chain is measured from the skid plate to the inside of the hook. No twisting of the chain is permitted. 5. If the pulling sled malfunctions at any time during a pull, that pull will be null and void. The participant will be allowed to recharge the batteries and re-pull at a time determined by the track officials. Sled malfunctions will only be determined by the track officials. 6. If any item falls off of the vehicle, the vehicle flips over backwards or sideways, the vehicle will be stopped at that point. If a part falls off the vehicle or the overhead smoke system falls off during the run that run is a DQ. 7. The vehicle will be disqualified if any part of the vehicle touches the out of bounds marks (or wall) before the full pull mark (30 ft). Out of bounds is only measured to the full pull mark (30 ft). There is no DQ for any vehicle that has passed the 30’ mark and touches. The sled does not count. 8. Intentional jerking of the pulling sled will disqualify the vehicle for that round. Intentional jerking will be determined by the Head Track Official. 9. The only person allowed in the track area once the vehicle has started its pull shall be the driver and Track Official. No assistance is permitted, either verbally or through hand signals in the direction of the vehicle. Pit crew will be allowed to assist with the vehicle in the hooking, unhooking, turning on, turning off, and adjustments only. This shall include helping the driver prepare the vehicle to make its run especially in the larger classes, which are more dangerous. The Pit Crew must leave the track prior to the pull starting. Any violation will result in a disqualification of the vehicle for that round. Violations will be determined by the Track Official. Participants with disabilities and children under ten will be an exception to this rule. 10. Fuel for gasoline vehicles may be any octane. The gasoline may not contain any additives other than the two cycle engine oil. All of the fuel shall be contained within the fuel system.
Series Points: Points will be awarded each event as described below:
1st: 100 11th: 80 21st: 60 2nd: 98 12th: 78 22nd: 58 3rd: 96 13th: 76 23rd: 56 4th: 94 14th: 74 24th: 54 5th: 92 15th: 72 25th: 52 6th: 90 16th: 70 26th and below: 50 7th: 88 17th: 68 8th: 86 18th: 66 9th: 84 19th: 64 10th: 82 20th: 62 If 7 events are held 1 drop; 6 and less events no drops.
CLASSES FOR THE 2025 YEAR WILL FOLLOW NR/CTPA RULES http://nrctpa.org/wp/wp-content/uploads/2018/08/2025-NRCTPA-Dirt-Truck-and-Tractor-Pulling-Rulebook-12-31-2024-rev-1-2.pdf DIGGER; GARDEN TRACTOR; PRO STOCK TRACTOR; HEAVY SUPER STOCK TRACTOR; SPORTSMAN; 2WD PRO MODIFIED; MODIFIED BIG RIG; 4WD PRO MODIFIED; WORKSTOCK; 4WD MODIFIED 12LB TRUCK 4WD NITRO 10LB; MINI ROD; MODIFIED SLASH
DEFINITIONS AND CLARIFICATIONS 2WD: Shall constitute one rear drive axle with 2 wheels only. 4WD: Shall constitute two drive axles; one rear drive axle with two wheels and one front steer drive axle with two wheels. On pulling vehicles the front and rear tires will be no more than 1 inch difference in diameter. 4WD vehicles will be true 4WD vehicles. The Big Rig class is the only class allowed to use tandem drive axles. Battery: In general shall refer to the device used to store electricity to store electricity in order to supply the vehicles motor. Body: Shall be the shell that gives the vehicle its shape and allows it to resemble a full size car, truck, or tractor. Chassis: Frame of the vehicle not including suspension, steering, body or gearbox. Dual wheel: More than one tire on one rim or a combination of more than 1 tire with one rim on each side of an axle. No dual wheels are permitted. Foam tires may be glued together to make 1 tire on 1 rim and shall not be considered dual wheel. ESC: Electronic Speed Control Factory production: Any R/C product manufactured by a recognized R/C supplier in quantities of no less than 100 units per year. Bodies are not required to be “factory production” as long as they are realistic. Please refer to motor rules for specifics on them. Factory production vehicle: Any factory production vehicle kit originally manufactured for use other than pulling vehicle. For example a Tamiya Clod buster or a HPI Wheelie King are “Factory Production Vehicle”. Front axle: The device mounted at the front of the vehicle in order to provide a means for steering. The axle will be mounted so that the wheels line up with the wheel openings in the body. Exceptions will be made for “Factory Production Vehicles”. The tires on hinged or floating front axles are not allowed to contact the track surface if the vehicle's front end lifts ¾ of an inch or more. Front wheel openings: The open place that allows the front wheels to have clearance to move when turned to the right or left. The wheel openings will be located behind the front most part of the body. Front wheels are not allowed to extend more than one inch on either side of the body. Exceptions are made for 4WD vehicles, Factory Production Vehicles that must run the original suspension, and replicas of full size vehicles. Gearbox: The unit consisting of the gears, belts, chains, case and/or mounting brackets. The gearbox is the means for transmitting the power from the motor to the wheels. An additional gearbox refers to a second gearbox that is attached to the main gearbox. Hitch: The apparatus used to hook the pulling sled to the vehicle. The hitch shall incorporate a 5/16 inch hole for the sled hook and will be no more than ½ inch from the rearmost end of the hitch drawbar. The hole must be located behind the axle. The sled chain will have a clear path to the hole with no interference from the vehicle. The hitch is to be fashioned from a strong and rigid material. All hitches will be rigidly mounted. The hitch must be mounted in such a way to not allow any movement longitudinally, vertically, or horizontally. Adjustable hitches are permitted but must be locked in position when pulling. Unless otherwise noted in the class rule the maximum hitch height is 4”. The following will also apply to the 2” maximum hitch height classes. The hitch is measured by placing the vehicle on the tech table, without any downward pressure during inspection. Horizontal hitches will be measured to the top of the hitch. Vertical hitches will be measured to the top of the hole. Any hitch with multiple holes will have the holes above the maximum covered with tape. Intentional jerking: The act of deliberately manipulating the controls of the vehicle in a way to advance the sleds position in an erratic manner. MSRP: Manufacturer's Suggested Retail Price. Maximum: Means you cannot exceed the specific measurement annotated but you can operate anywhere within the measurement specified as long as you don’t exceed the maximum specified measurement. Maximum motor size: The total outside length and diameter of the motor not including the output shaft. Measuring device: All measurements are to be made with a normal ruler. Micrometers and the like are not to be used for tech. Monster truck: A vehicle with oversized tires designed to go over large obstacles at a fast pace. Original: As manufactured and unmodified. Production Pulling Vehicle: Any vehicle manufactured specifically for pulling. This may be “factory production” or scratch built. R/C: Radio controlled. R/C Motor: A motor that is designed and built for the R/C industry. Readily available: Available off the shelf from hobby shops, distributors, or from retail mail order outlets. Special order or custom made items are not considered to be “readily available”. Scale appearance: Having the scaled down look of a full size vehicle or part. Sled: The device used to create a drag on the pulling vehicle in which to stop the vehicle. Stock: Factory original for that vehicle or piece of equipment. Traction compound: Anything that is foreign to that tire. Any substance that was not made for put on, or into the tire at time of manufacture. Tire glues are allowed to mount tires to rims or to glue two tires together in order to make a wider tire. Tread width: The width of the tread only. This does not include the sidewalls. Wheel: An assembly consisting of one tire and one rim. Wheelie bar: A device mounted to the rear of the vehicle to prevent the vehicle from flipping over backwards once the vehicles front tires loose contact with the pulling surface. This device is made up of a single or pair of bars with one or two wheels mounted on the bars. Wheelie bars are permitted in all classes. They may not extend past the legal length of the vehicle and may not interfere with the operation of the pulling sled in any way. Skid plates are not permitted. In the dirt classes skid pads may replace the wheels on wheelie bars for scale appearance. Flexible straps for static grounding are only permitted to touch the pulling surface. Wheelie bars are not to be used to rock the vehicle back and forth. This would be considered intentional jerking.
