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Regular events include 410 cubic inch sprint cars, 305 cubic inch sprint cars, and dirt trucks. In 2024, the World of Outlaws sprint car series returns to the speedway for the first time since 2016. The speedway has previously hosted the All Star Circuit of Champions , National Sprint Tour , and United States Auto Club .
The first weekly races were held at the Knoxville Raceway in 1954. After internal issues with the sanctioning body—the Southern Iowa Stock Car Racing Association—in 1956, Marion Robinson of Des Moines, Iowa was appointed as race promoter. During Robinson's tenure, the cars progressed from stock cars to modifieds to supermodifieds to sprint ...
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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 ...
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.
After a race, the top 5 finishers, one other random car, and the first car failing to finish the race not due to an accident will have their cars inspected. Podium cars, a random car, and first car out also have their cars and engines taken by NASCAR for further inspection at the NASCAR Research and Development Center.
The number of sprint races were doubled to six, while Saturday was designed ‘sprint day’ - with a new “sprint shootout” qualifying session determining the grid for the sprint race.
IMCA Latemodel – full-bodied late model race cars; IMCA RaceSaver Sprint Car – traditional 305 non-winged and winged sprint cars; IMCA Stock Car – full-bodied production stock cars; IMCA Hobby Stock – 8-cylinder rear wheel drive entry-level division; IMCA Northern Sport Modified – same as modifieds but with smaller engines and more ...