Back to Lightning 100

 

   

USAC Midget Facts

Weight:

900 pounds minimum, without driver

Chassis:

Tubular 4130 aircraft steel; minimum 1 3/8 inch O.D. and .095 wall thickness

Horsepower:

325 to 350

Engine:

Normally aspirated, internal combustion, four cycle, piston type with a maximum of six cyclinders. The most popular design has 166 cu. ins. (2721cc)

Fuel:

Methanol

Capacities:

Fuel, 18 gallons minimum Oil, 9 quarts avg.

Speed:

Fastest official lap average is 139.265 mph set by Ryan Newman at Pikes Peak International Raceway, June 7, 1997.

Wheelbase:

66 inches min., 76 inches max.

Overall Width:

65 inches maximum

Overall Length:

10 feet average

Overall Height:

57 inches avg. to top of roll cage

Suspension:

Solid front and rear axels with torsion bar or coil spring suspension

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

Driveline:

Direct drive without clutch or transmission. Quick change gears are behind the rear assembly.