Rules

LATE MODELS 

2026 Peoria Speedway Late Model Rules

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

DIRTcar Late Model – DIRTcar Rules

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

Right Front, Left Front & Left Rear Tires: Hoosier LM 20,30,40 or 2,3,4  on three corners – (Grooving & Siping Allowed)
Hoosier LM 30,40 or 3,4 on RR – (Grooving & Siping Allowed)

MODIFIEDS

Please click the DIRTcar Modified – DIRTcar Rules

B MODIFIEDS

Please refer to the the DirtCar UMP Modified 

with the exceptions of the Following Rules:

1. Minimum weight 2450 pounds
2. ALL MOTORS NOT SEALED WILL BE CONSIDERED OPEN MOTORS
   ALL 360 CUBIC INCH OPEN MOTORS
   MUST RUN 1-500 GAUGE LEGAL 4412
   HOLLEY CARB CHOKEHORN MAYBE REMOVED
   ANY SPACER UP TO 1in – NO SUPER BOWLS
   NO XP CARB WILL BE ALLOWED
   NO ROLLER CAMS – NO DRY SUMP
   NO TRI-Y OR SQUARE TUBE HEADERS
   NO REV KIT
   CAST IRON BLOCK & HEADS ONLY
   BILLET METERING BLOCKS AND WILLY’S EQUALIZER SYSTEM WILL BE ALLOWED
   CRATE MOTORS
   ONLY 602 GM CRATE OR QUICKSILVER 357
   THEY MUST BE SEALED
   1-650 4 BARREL HOLLEY CARB (GUAGE LEGAL)
   NO XP AND SUPER BOWLS
   ANY SPACER UP TO 1in CHOKEHORN MAYBE REMOVED
   BILLET METERING BLOCKS AND WILLY’S EQUALIZER SYSTEM WILL BE ALLOWED

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

3. $6,500 engine claim rule ($50 Tow Truck Fee applies)
4. Steel Body Shocks ONLY. No adjustable, No Schrader valves, No remote canisters, no bulb shocks.
5. NO Spring Rubbers
6. $120 shock claim rule or $60 exchange.
7. Peoria Speedway reserves the right to claim any engine or shocks as necessary.
8. Flat Tappet Cams no Roller Cams.
9. 5 inch Spoilers are allowed.
10. Hoosiers M-30 on 3 corners with a M-60 on the Right Rear or American Racers Hard on 3 corners with a Extra Hard Right Rear

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.

UMP STOCK CARS

DIRTcar Stock Car – DIRTcar Rules

HORNETS

Please refer to the the DirtCar UMP Hornet Rules below

Hornets may run any DOT Tire

https://dirtcar.com/wp-content/uploads/2017/12/2018DIRTcarSportCompactRules-1.pdf

Kid Mods

KIDMODS2022copy

CROWN VICS