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Sprint cars are open-wheel race cars, designed primarily for the purpose of running on short oval, circular dirt or paved tracks. Historically known simply as "big cars," distinguishing them from "midget cars," sprint car racing is popular primarily in the United States and Canada, as well as in Australia, New Zealand, and South Africa.
Sprint Cars are powered by a naturally-aspirated, methanol-injected overhead valve V-8 engines; with a displacement of 410 cubic inches (6.7L) and capable of engine speeds approaching 9000 rpm. [3] A lower-budget and very popular class of sprint cars uses 360-cubic-inch (5.9L) engines that produce approximately 700 horsepower (520 kW). [4] [5 ...
Dirt track racing is a form of motorsport held on clay or dirt surfaced banked oval racetracks. Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles, spreading throughout Japan and often running on horse racing tracks.
World of Outlaws Sprint Car Series, originally known as the World of Outlaws (often abbreviated WoO) is an American national touring dirt track racing series. It is owned and operated by World Racing Group , and was rebranded when the World of Outlaws Late Model Series was introduced. [ 1 ]
The "Offy" engine was derived from this Miller marine engine An Offenhauser sprint "midget" racer. The Offenhauser engine, familiarly known as the "Offy", was an overhead cam monoblock 4-stroke internal combustion engine developed by Fred Offenhauser and Harry Arminius Miller. [4] Originally, it was sold as a marine engine.
Typically, these four-cylinder-engine cars have 300 horsepower (220 kW) to 400 horsepower (300 kW) and weigh 900 pounds (410 kg). [ 1 ] [ 2 ] The high power and small size of the cars combine to make midget racing quite dangerous; for this reason, modern midget cars are fully equipped with roll cages and other safety features.
Crosskart (also cross car, sprint car, kart cross or off-road kart) is a type of kart racing that takes place on autocross, rallycross, dirt oval or ice racing tracks instead of on paved tracks. Competitions take place in classes that are based on cylinder volume (85 cc, 125 cc, 250 cc, or 650 cc).
The oldest continually run dirt quarter midget track east of the Mississippi is the Hulman Mini Speedway, operated since 1958 by the Terre Haute Quarter Midget Association (THQMA) located in Terre Haute, Indiana. On the west coast, the Capitol Quarter Midget Association has operated a dirt track for quarter midgets since 1954.