11,000 Hot Stock Tractor Rules

  1. 466 cubic inch limit. Any motor over 466 cubic inches must have factory stroke and bore for that brand of tractor, up to a maximum of 585 cubic inches.
  2. The tractor is limited to a single turbo charger you can run a 3LM up to the S300 2.36 inlet. The S300 is limited to a 90 housing with part #177272 or 100 housing with part #177209. Must be out of the box with no modifications. The 360 degree thrust can be installed.
  3. Injection pump can be up to a (P7100) 13 mm barrel and plunger pump max.
  4. Max RPMS 2950
    • Must have working tack cable with 1 magnet (female connection from tractor) to hook to sled. CANNOT tack more than 2950 RPMs per tack box during pull. If the tack box records greater than 2950 during the pull, that tractor will be disqualified, unless the tack box is inaccurate. Alternate method of checking RPMs will be a handheld tack at the end of the track. Flag official at the end of the track responsible for reading the tack box and determining which tractors to hand check.
    • The consequence for exceeding the RPM limit is as follows: (1) first offense is forfeit prize money and all points (max of 16 points) for that class, (2) second offense is the same as for first offense, and (3) the third offense is 1 year and 1 day suspension for that tractor for all classes in which it competes. The first and second offenses in one weight class do not add to violations in another limited RPM class.
  5. Tractor must have at minimum a factory ROPS roll bar and seat belt. If running with anything other than a three bar roll cage, tractor MUST have fenders able to support the weight of the driver. Three bar roll cage and five point harness is recommended.
  6. Top cut tires no alterations of any kind to the face of the lug, max tire size 20.8x38.
  7. Water injection will be allowed. No alcohol, propane or nitrous injection allowed.
  8. Only OEM inter coolers can be used but must run through the motor.
  9. All tractors will be equipped with a clutch blanket or minimum 5 inch wide by inch thick steel band around bell housing.
  10. Front axle skid plate and engine side shields are recommended, but are not required. Must have a factory OEM wide front end.
  11. Tube frames are permitted.
  12. Tie bars are mandatory.
  13. 11,000 hot stock tractors will be allowed to hook in the 9500 Pro-Field class under one of the following option
    1. Weigh 9500 lbs. and run under the 9500 Pro-Field rules if, and only if they meet ALL the rules and safety requirements of the 9500 Pro-Field class. (This includes roll cages, steel flywheels, side shields, etc.)
    2. Weigh 11,000 lbs. and run under the 11,000 Hot Stock rules.
  14. Turbos must be checked and sealed. One hook grace period allowed. If use 1 hook grace period prize money check will be held until turbo has been checked and sealed.
  15. Rules are loc. ked in for 3 years (2018 through the end of the 2020 season).