2022 Peoria Speedway Late Model Rules

Please see UMP Dirtcar Super Late Model Rules with the following exceptions:

Late Model Series

604 GM or 602 GM Crate Engine Weight Break (2250 LBS)

Right Front, Left Front & Left Rear Tires: Hoosier LM 20s  on three corners – (Grooving & Siping Allowed)
Hoosier LM 40 on RR – (Grooving & Siping Allowed)


Please click the DirtCar UMP Modified Rules


Please refer to the the DirtCar UMP Modified 

with the exceptions of the Following Rules:

  1. Minimum weight 2450 pounds
  2. 602 Sealed GM Crate Motor, or 360 cubic inch or less steel headed engine with a 2 barrel carb Unaltered 4412 to be gauged top and bottom  on request and the choke horn still in place.

***Note the open engine package is open to same claim rules as 602 Engine***

  1. $6,000 engine claim rule or $500 Plus Exchange. ($50 Tow Truck Fee applies)
  2. Steel Body Shocks ONLY. No adjustables, No Schrader valves, No remote canisters.
  3. $120 shock claim rule or $60 exchange.
  4. Peoria Speedway reserves the right to claim any engine or shocks as necessary.
  5. Flat Tappet Cams no Roller Cams.
  6. 5 inch Spoilers are allowed.

This is Peoria Speedway’s attempt to lower the cost of competition in the B Modified class.

Track Reserves the right to claim engines or shocks as deemed necessary.


Please refer to the the DirtCar UMP Hornet Rules below

Hornets may run any DOT Tire

Kid Mods


Outlaw Stock Cars

Street Stock Rules 

1. Full frame/unibody cars

2A. (All steel engines)

2B. Open engine – Iron Head and Block – 2 barrel carb – any 8 inch tire – 3,000 lbs

2C. 602 crate Sealed – 4 barrel carb – any 8 inch tire – 2,600 lbs

2D. 604 crate Sealed -4 barrel carb- any 8 inch tire – 2,900 lbs

  1. Aluminum or steel bodies must be stock appearing can run enclosed cock pit.
  2. 8 Inch Spoiler
  3. 9 inch rear end or quick change option
  4. 1 non-adjustable shock per corner.

7A. The lower rear trailing arms must be mounted in the stock location on the frame. Additional holes in the rear end will be permitted.

7B. Brackets can be maximum 7.5 inches long, measured from the bottom of the axle tube to the bottom of the bracket.

7C. Maximum 1 row of 5 holes for adjustment.

7D. Holes must be vertical.

7E. No additional holes in frame allowed. Stock mount holes only. Frame mounts MUST be in stock location.

7F. Slots in the frame or rear-end mounts will NOT be permitted.

  1. Front Stock Type No Tubular Lower or Spindle

Seat Belts/Restraint System

9A.Each car should be equipped with minimum of an SFI 16.5 or SFI 16.1 approved restraint system, until the date of the belt expiration (two years from the date of manufacturer). Seat belt restraint systems shall be installed and used in accordance with manufacturer’s instructions.

9B Seat belt material should not be permitted to come in contact with any sharp or metal edge, including when the material passes through the seat.

9C. Rolled and/or de-burred and/or flanged edges or anywhere seat belt webbing passes through and may come in contact with abrasive edges are recommended.

Protective Clothing

10A. All drivers will be required to wear a fire-resistant driving uniform meeting minimum of the SFI 3.2A/5 specifications and display a valid SFI 3.2A/5 label.

10B. Drivers must wear gloves at all times they are on track, during practice and competition.

10C. Driver’s gloves must meet or exceed the SFI 3.3 specification and have a legible and valid SFI 3.3 label.

10D. All drivers must wear fire resistant accessories including but not limited to; head sock, undergarments, shoes, and socks. Shoes and gloves will be required to meet minimum of the SFI 3.3 specifications and display a valid SFI 3.3 label.

10E. All drivers must have one of the following. SFI approved-driver-side window net, 16 inch by 20 inch ribbon or mesh style, and must be mounted to roll cage so latch is at the top front of window,or SFI approved arm restraints.


11A. Aluminum and/or carbon fiber-type composite seats only will be permitted. If a carbon fiber-type composite seat is used, it must meet the SFI 39.2 ratings. Aluminum seats with an FIA and/or SFI 39.2 rating are recommended. All seats must be mounted to the frame as required by the seat and chassis manufacturer. Full containment seat(s) and/or aftermarket bolt on head restraints are recommended.

11B. All areas surrounding the head should have padding.

11C. A right-side head restraint net and/or support are recommended. All head restraint nets should be equipped with quick release mechanisms.

11D. The driver’s seat must be securely fastened to the frame and/or cage in six positions with a minimum of six (6) 3/8” inch bolts. There should be a minimum of four (4) bolts on the bottom and two (2) in the back of the seat. All seats must be a minimum of 1/8”-inch magnetic steel plate under and up the back 4” inches and be as wide as the seat. Only single piece high back type seats will be permitted.


12A. All drivers are required to wear a full-face helmet with a minimum safety rating of FIA 8860-2004, FIA 8860-2010, Snell SA2005, Snell SA 2010, Snell SAH2010 and/or a valid SFI 31.1/2005 label.

12B. Open face helmets are not allowed.

Head & Neck Restraint

13A. An up to date head and neck restraint or neck collar of some kind is required at all times when a driver is on the track under competition.The head and neck restraint must be SFI 38.1 approved and display a legible and valid SFI 38.1 label.

13B. Drivers, at all times they are on the track, must have their helmets correctly (following manufacturer’s installation and use instructions) connected to an approved head and neck restraint.

13C. Arm restraints must be connected and used as instructed by the manufacturer.


14A. No sharp or protruding edges in or around the driver compartment, which would impede the driver’s rapid exit from the car.

14B. Windshield screens with a minimum of .090-inch screens must be securely fastened

14C. An electrical engine shut off switch is required. The switch must be clearly labeled and within the reach of the driver.

14D. A fuel shut off valve is recommended and should be utilized. The valve should be clearly labeled and within reach of the driver. The fuel line must not enter the driver compartment.

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