Over 60 years ago that a diesel race car at Indianapolis ever went to the start. The Cummins Engine Special occurred in 1952 and took his 6.6 liter six-cylinder turbo diesel the pole position. Now, Mazda a diesel in the race. On 26 July 2013, the Grand-Am Brickyard Grand Prix in the GX class, won the Mazda6 Skyactiv-D clean diesel.
It is the first victory of a diesel engine in the history of the legendary race course in the United States. Sylvain Tremblay went after a hard fought race as first over the finish line. He continued in the face of competition from Porsche by which, with its mid-engine sports car Cayman competed.
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The racing is Mazda Skyactiv powered by a 2.2 liter turbo diesel, which according to Mazda is to consist of 51 percent of production parts. The remaining 49 percent to ensure that the engine is increased to 400 hp in racing trim. This corresponds to a power density of more than 180 hp - a value because it is only one of petrol knows. Even Audi's diesel-winning car of Le Mans, the R18 etron, is beaten in a capacity with its 3.7 liters of displacement and probably almost 640 hp. Mazda wants to make as well as its German rivals, the diesel in the U.S. popular. The Americans joined with diesel engines long time unattractive because luftverpestende drives.