USAC Midget Racing
Engine
Type: Normally aspirated, internal combustion, four cycle, piston type with a maximum of six cyclinders. The most popular design has 166 cu. ins. (2721cc)
Horsepower: 325 to 350
Speed: Fastest official lap average is 139.265 mph set by Ryan Newman at Pikes Peak International Raceway, June 7, 1997.
Fuel: Methanol
Drive Train
Drivetrain: Direct drive without clutch or transmission. Quick change gears are behind the rear assembly.
Chassis/Body
Chassis: Tubular 4130 aircraft steel; minimum 1 3/8 inch O.D. and .095 wall thickness
Weight: 900 pounds minimum, without driver
Suspension
Type: Solid front and rear axels with torsion bar or coil spring suspension
Wheels and Tires
Wheels: Aluminum or magnesium, 13 inches in diameter. Right rear 10 inches wide, all others 8 inches wide.
Tires: Bias-Ply racing tires
Brakes: 3 or 4 wheel discs
Dimensions
Wheelbase: 66 inches min., 76 inches max.
Overall Length: 10 feet average
Overall Width: 65 inches maximum
Overall Height: 57 inches avg. to top of roll cage
Track Width: Front-46 inches. Rear-43 inches
Fuel Capacity: 17 gallons
