Short Course A-Modified

CHASSIS

• Any 2wd Short Course Truck. (SC Mod is a 2wd Rear Wheel Class)
• Chassis must be Original Manufacturer Short Course chassis kit
• No aftermarket or special designed oval type chassis allowed
• 4wd chassis allowed, must remove front drive shaft & half-shafts and battery must be in stock location

WHEELBASE

• Wheel base length 12.75”-13.5”
• Width 11”-11.75”

SHOCKS & SUSPENSION

• Independent
• Aftermarket shocks and springs allowed.
• Adjustable rear control arms are permitted

TRANSMISSION & MOTOR LOCATION

• Motor may be mid or rear engine only if original manufacturer designed it to be changed.
• Single Speed Transmissions only.

MOTORS & ESC

• 540 sized motors only.
• Any turn brushless / sensored allowed.
• Any ESC in any mode allowed.

BATTERIES

• 7.4V / 2S Lipos (Maximum). HV packs are allowed but maximum 8.60V at max charge! 
• Battery must be mounted down the center of the chassis.
• Electronics can be mounted on the left within main chassis plate only.

BODY STYLE

• Must look like USMTS, UMP, or IMCA dirt modifieds.
• Front wheels must remain open.
• Rear spoiler allowed, not to exceed 1.5” off of deck.
• End caps allowed, may run center support brace.
• End caps no larger than 1.5″x3
• No side damns or other down force devices allowed.
• Max body dimensions: width 13”, height 8”
• Max overall length of body including spoiler 26 1/2”
• Rear bumpers are required.
• Front bumper is highly recommended. If no bumper is used, then front nose must not be a sharp/pointy and be able to absorb an impact.

TIRES & WHEELS

• SC Tires & Wheels Only.
• Rubber Tires Only. (DE Tires or Sprinters work the best)
• No Foams or Silicones Allowed.
• Wheels must be the 2.2/3.0 SC wheels.
• Tires must be the 2.2/3.0 SC rubber tires
• No 1/8th Tires or Wheels Are Allowed.
• No grooving or sipping of the rubber tires.
• No large lug off-road tires.
• No 1/10th Stadium Truck or 1/8th buggy wheels allowed.
• Tire Sauce is allowed, MRP is the preferred sauce for Gulf Coast Speedway. Tires must be dry when entering the racing surface!

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Revised August 8th, 2021 – (Tire Sauce)