Abstract
For approximately twenty years Porsche has participated in motor racing. The development of Porsche production cars takes advantage of a major part of the experience accumulated during these performance-oriented activities.
This paper deals with the development of the Porsche 917 racing car which is powered by an air-cooled 12-cylinder engine producing about 630 DIN hp. The application of lightweight materials like titanium, aluminium, magnesium, fibreglass, etc. is also described.
The Porsche 917 racing car which obtained its Fédération Internationale de l'Automobile homologation by a series of 25 in April 1969 has now become the most successful car in motor racing throughout the world. In 1970 the 917 car was the overall winner at the 24 hours race at Le Mans.
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