DuQuoin Rules

General Rules

  1. Entry- Each Tractor may only pull once per class
  2. DRIVER – Drivers must stay in the seat of the tractor at all times. No bouncing in the seat is permitted. Hands or hand must be on the steering wheel, hand brakes, hand clutch, or throttle at all times during the pull. Never try to start a tractor by pushing it off the scale. No one except the driver is to be on a moving tractor. No riders allowed on moving tractor. Anytime a tractor is moving the driver is required to be seating down in the seat. Driver must be in the seat when starting the tractor. Tractor is to not exceed a 4-mph speed limit off the track or in the pit area.
  3. ALCOHOL & BEHAVIOR – No abuse or over consumption of alcohol or drugs will be permitted or tolerated. – No abusive or aggressive language or behavior will be tolerated on and off the track.
  4. BARRED – Any tractor or puller found to be unsafe, unruly and illegal or does not follow or respect the rules and regulations of the SIPL; may be disqualified or barred and or banned from hooking or attending any SIPL function, meeting or event
  5. WEIGHING IN – Each Tractor is required to weigh in on the scales and to have their hitch height checked before they can hook to the sled. This is required for each and every time you pull in a different weight class. If there is no one there at the scales you are still required to check your weight and hitch height. DO NOT spend the day on the scales. Have courtesy for the other entries and pullers.
  6. WHEELIE BARS & KILL SWITCH – Wheelie Bars and Kill Switches are required. Wheelie bars should not be attached to the drawbar in any way. Drawbars and kill switches should be easy accessible for the sled or hook person. Minimum requirements for the wheelie bars are as follows – A: 10″maximum above ground. B: The back of the wheelie bar is to extend 5″ behind the tire radius. C: Pads – 5″ square minimum, spaced minimum of 20″ from outside each pad. D: Stabilizer bar system must be able to support the weight of the tractor and driver in the heaviest weight class pulled. E: Jacking up the pads so the tractor is completely off the ground is a means to test the strength of the system’s support ability and the SIPL Tech Official reserves the right to perform this test at their discretion.
  7. DRAWBAR/HITCH – Hitch material cannot be thinner than ¾” and not thicker than 1.25”. Hitch has to have a 3.0” wide hole with 1” material thickness around the hole or a straight clevis or D-Ring (hitching eye) bolted or pinned tightly to the drawbar with a minimum of 3.75”long hole. Top of hitch adjuster cannot be above center line of axle or hub. Hitches and drawbars must be stationary and locked in all directions. Hitches or drawbars cannot be moved when pulling down the track. Hitching point should be easy accessible for the sled or hook person and fit freely.
  8. COVERS & EXHAUST – All flywheels must be covered. John Deere 2 – two-cylinder production tractor’s clutch housing (clutch cover) must be covered. All fans, P.T.O’s, or exposed moving parts must be shielded or covered. All exhaust pipes must be straight up with no curves or bends. All battery posts must be covered. No essential parts can be removed. Such as: (Front Wheels/Brakes etc.).
  9. FIRE EXTINGUISHERS – Are recommended but not required. Extinguishers must be easy accessible and up to date.
  10. FUELS – Gas, Diesel or LP fuels only. No alcohol or nitrous oxide: fuels/systems/kits or fuel additives may be used in tractors. Gas is allowed a maximum of .750 specific gravity. All tractors are subject to random fuel checks by a NATPA Board of Trustees or Tech Official.
  11. RPM CHECKS – All tractors are required to have a spark plug wire easily accessible and outside a shielded area so Tech Officials can check tractor’s RPM’s manually
  12. WEIGHT OR PART FALLING OFF – Any part or weight falling off the tractor after being hooked, during the pull and until the tractor is unhooked from the sled, will result as a (DQ) disqualification. No measurement will be taken after a disqualification or refunds given. (Do Not touch an unsecured or partially hanging weight/part until the tractor is unhooked from the sled)
  13. OUT OF BOUNDS – Contact point of tractor and or sled must remain in bounds at all times. Out of bounds will result in (DQ) disqualification. No measurement will be taken after a disqualification or refunds given.
  14. RE PULL – If a class is restarted for any reason; all tractors that are registered in that weight class and that have already pulled, will be allowed to re-pull. No new entries allowed in that class during a re-pull or re-start of a weight class.
  15. FLAG & TRACK OFFICALS – You will line up when your weight class is ready to start and not before. You will be asked to hook to the sled and then go forward until the chain to the pulling sled is tight. The flag person will show you a Green flag before you can take off. You will not take off until you get the Green flag. When you see the Red flag at any time, you must STOP! The flag person will stop you if you are not making any more forward progress with the sled or for a safety and or equipment problem or issue. If the flag person feels your front end of the tractor is too high or the driver can no longer maintain safe control; you will also be Red flagged and stopped at that time. If you continue with your pull after being Red flagged, you will be disqualified from that class. If you do it again, you will be asked to leave the tractor pull.

Farm Stock 1 Rules

  1. Hang on weights allowed
  2. 20 inches Maximum Drawbar Height
  3. No cut or intentionally altered tires
  4. Wheelie Bars Required
  5. No Aluminum allowed except for aftermarket fuel tanks and alternators
  6. 10% over factory RPM allowed
  7. Factory engines for that make and model tractor
  8. If the tractor did not come factory with a turbo, then you cannot add a turbo

Farm Stock 2 Top Cut

  1. Tractor models 1962 and older only
  2. Must have Factory engine for that make and model tractor
  3. Hanging weights allowed
  4. Top Cut tires only 16.9-38 3500-5500, 18.4-38 6000 and above
  5. Pullers may run any gear
  6. 20 inches Maximum Drawbar Height
  7. Wheelie Bars and Kill Switches Mandatory
  8. 30% over Factory RPM allowed

Modified Antique

  1. 18.4-38 Max tire size, Any cut allowed
  2. 20 inches maximum Drawbar Height
  3. Wheelie Bars, Kill Switches, Side Shields mandatory
  4. 2-cylinder John Deeres must have flywheel completely covered
  5. 1800 RPM Max on all 2-cylinder John Deeres
  6. 3000 RPM Max for all 4 and 6 cylinder tractors
  7. No Alcohol, Nitrous, Turbos or blowers
  8. No Fuel injection, down draft carburetors or multiple carburetor setups
  9. Engine must be of rear end Manufacturer or manufacturer replacement
  10. 11 feet from center of rear axle to the furthest most forward point of the tractor

12500+ Farm Stock

  1. Engine- Tractors must have the correct engine for that make and model
    • No cube limit
    • 3000 RPM maximum
    • OEM manifolds only
    • Maximum 2 valves per cylinder
  2.  Fuel- Diesel Fuel only
    • Maximum size injection pumps will be P3000
    • Maximum plunger size 13mm one plunger per cylinder
    • No electronic controlled fuel delivery devices
    • Must have a 3-way dump valve
  3. Chassis-
    • No component tractors allowed
    • 20” drawbar Maximum height, 18” from center of the rear axle
    • Hitches must not exceed 10 degree pitch/angle
    • Hitches must be rigid (No floating hitches)
    • No weights to extend 2 foot past the furthest most point of the tractor
    • Must have front hitch (Front hitch will not be included in 2’ length)
    • Wheelie bars, Tie bars, ROPS will be required
    • Factory frame rails must be used
    • Engine,transmission, and rear end must match Manufactured hoods for that tractor
    • All Tractors must have .060 (14 Gauge)  thick side shields that extend from the front most part of the engine to the bellhousing. No Aluminum side shields. 
  4. Transmission
    • No aftermarket transmission allowed (Example: Pro-Fab or Atlas Max)
  5. RPM- All tractors must have a ISSPRO part number 019R8906 magnetic pickup attached to the front of the engine. RPM plug to be easily accessible to directors at the rear of the tractor.
  6. Tires- 20.8-38 520/85R38 or 18.4-42 480/80R42 Maximum tire size
    • Top cut tires allowed
    • No Front cut tires allowed 
    • Top Cut is not to extend into the body of the tire
    • Rear tires must run within the rear tire track
  7. Weight-Tractors with intercoolers or water injection systems will be allowed 12,000lbs. Tractors with fuel/air only will be allowed 12,500lbs.
  8. Safety-
    • Dead man throttle
    • ROPS- 12/15MPH Only
    • Seat belt
    • Intake Air shut off
    • Tie bars- 12/15MPH Only
    • Wheelie Bars
    • 2 Grade 8 1/2″ Exhaust bolts
    • 3-way Dump valve
    • Compressor Blanket- 12/15MPH Only
    • Side Shields- 12/15MPH Only
    • Fire Extinguisher