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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 ...
Midget sprint car. Midget cars are smaller versions of a full size sprint car, normally non-wing only. Midgets date back to the 1930s as a very common form of sprint car racing, still very popular today and also sanctioned by USAC, POWRI, and others. They are powered by four-cylinder engines developing around 350 horsepower (260 kW), but are ...
In 1966, General Motors designed a special 302 cu in (4.9 L) engine for the production Z/28 Camaro in order for it to meet the Sports Car Club of America Trans-Am Series road racing rules limiting engine displacement to 305 cu in (5.0 L) from 1967 to 1969. It was the product of placing the 283 cu in (4.6 L) 3 in (76.2 mm) stroke crankshaft into ...
Small-block engines, in the 358 cubic inch range, were exempt from the plates; the first car to race with a small-block engine was Dick Brooks at the 1971 Daytona 500, where he ran a 1969 Dodge Charger Daytona with a 305 CID engine. The transition period lasted until 1974, when the current 358 cubic-inch (5870cc) limit was imposed and NASCAR ...
The 304.6-cubic-inch (5.0 L) 305 had a 4.25 in × 3.58 in (108 mm × 91 mm) bore and stroke. [11] The 305A was equipped with a single barrel carburetor and produced 150 hp (112 kW) gross at 3600 RPM and 260 lb⋅ft (353 N⋅m) gross at 1600 RPM (measured without air cleaner or accessories in an ideal environment).
A more powerful turbocharged version of the engine was used by Offenhauser in 1968, and gave Bobby Unser the win that year. The engine made 750 hp (560 kW) @ 9,500 rpm, from a displacement of only 168 cu in (2,750 cc). [10] Outputs over 1,000 bhp (750 kW) could be attained, using around 44.3 psi (3.05 bar) of boost pressure.
The Dolomite Sprint has been described as "the world's first mass-produced multi-valve car". [12] Multi-valve engines had first appeared in 1912, with the most recent prior to the release of the Sprint engine being the Cosworth BDA (1969) and Lotus 907 (1972), but they had not been not used in mass-production vehicles until after the ...
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]