Midwest Modified Rules

10th scale 2WD off-road buggy-based carbon fiber or similar material chassis

Midwest Modified body, 1.5” maximum rear spoiler

Maximum 10.5T 2-pole 540 sensored brushless motor

ESC in binky mode or not capable of ESC timing advance

 

Chassis

• Any 1/10th scale buggy chassis or carbon fiber chassis by Custom Works, GFRP, 57 Designs, Triple P, etc.

• Mid and Rear Motor chassis allowed, chassis may be special cut type oval chassis

• Added weight must be inside the chassis rails, not on the side or under the chassis

Suspension

• Independent suspension only

• Aftermarket shocks and springs allowed

• Limiting of shocks is allowed inside the shock

• May change shock oil, shock pistons and springs

• Springs: can be from any manufacturer, not OEM specific

• Adjustable rear A arms are allowed

• Aluminum Hub carriers are approved for competition front and rear

• Brass inserts in the front and rear arms are allowed, any weight tungsten allowed on or inside chassis rail

Transmission

• Mid or rear motor chassis with single speed transmissions only

• May use gear or ball differentials

• Drivetrain upgrades allowed (MIP, Proline, Slipper Eliminators allowed)

• Any spur gear or pinion ration combination is allowed

Electronics

• Electronics can be mounted on the left or right within main chassis plate only

• Any 10.5T or higher wind 540-sized 2-pole open turn brushless motor is legal, sensored with any timing setting, cooling fans allowed

• Any type of ESC, must be in blinky mode or not capable of timing advance

Battery

• 7.4V or 7.6 LiHv / 2S LiPo Batteries, maximum charge voltage 8.60V

• Battery must be mounted on right, left or centerline of chassis, laydown or standup position allowed

• Any multi-channel radio system and steering servo is allowed

• Steering servo may be center, left or right mounted on chassis

• No AVC, GYRO or additional traction control devices allowed

Tires

• Rubber Tires Only, any compound or combination is allowed

• PWR will be open tire rule for Midwest Modified, must use 2.2” tires and wheels

Body

• For body rules see www.dirtoval.com

• For Midwest body dimensions see:  https://www.dirtoval.com/Portals/1/rules/DODC_rules_10-21_MWM.pdf?ver=2021-12-28-152120-620

• Under body supports may be added to brace each rear quarter panels, must hold it in stock position, cannot be flared out

Spoiler

• Spoiler maximum length: 1.5" including a max .250” wicker

• Spoiler cannot be wider than center panel

• No more than (2) spoiler center braces allowed

• Center braces can be no larger than optional spoiler end caps.

• End Caps cannot extend past end of side panel by more than .750” (Included in the Max Length of Body)

• End Cap Size: Length 2.75" Height 1.5"

• Height is area of End Cap above the rear deck.