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The Porsche 917 is a sports prototype race car developed by German manufacturer Porsche to exploit the regulations regarding the construction of 5-litre sports cars. Powered by a Type 912 flat-12 engine which was progressively enlarged from 4.5 to 5.0 litres, the 917 was introduced in 1969 and initially proved unwieldy on the race track but continuous development improved the handling and it ...
The favorite team to win, Gulf-backed John Wyer Automotive, lined up three 917Ks, two with the 4.9-liter engine, and one with the 4.5-liter unit. Two 917 LH were entered in Le Mans, one in white and red trim by Porsche Salzburg. Driven by Vic Elford and Kurt Ahrens, the pole sitter's 4.9-liter engine dropped an inlet valve after 225 laps.
When the minimum number was lowered to twenty-five for 1969, the more modern Porsche 917 and Ferrari 512 were homologated and outran the older Lolas and Fords. Chevrolet powered coupes tended to not run as well in Europe as they did in North America. Some reliability problems arose when racing in Europe, mainly due to the grade of fuel allowed.
As a result, Porsche left European style sportscar racing to privateers, and focussed on developing turboengines for the 917/10 Can-Am entry, as well as an already 9 year old car: the 911. [citation needed] Wyer adopted the new 3.0-litre regulations and started building Gulf-Mirage prototypes again, using a Formula One Cosworth DFV engine. The ...
Porsche 917K Porsche 4.5L F12 Did not arrive DNA P 2.0 54 F. Migault (private entrant) François Migault: Huron 4A Ford Cosworth FVC 1798cc S4 Did not arrive DNA P 2.0 55 Scuderia Filipinetti: Lola T212 Ford Cosworth FVC 1798cc S4 Did not arrive DNA S 5.0 61 (reserve) North American Racing Team: Jacky Ickx Clay Regazzoni: Ferrari 512M Ferrari 5 ...
The following is a list of Porsche vehicles, ... Porsche 908 Spyder Porsche 917 Porsche 936 Porsche 935/77 2.0 Porsche 935/78 Porsche 956 Porsche 962; 1968. 1969–1981.
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As Porsche only had small capacity road and racing cars in the 1950s and 1960s, they scored many wins in their classes, and occasionally also overall victories against bigger cars, most notably winning the Targa Florio in 1956, 1959, 1960, 1964, and every year from 1966 to 1970 in prototypes that lacked horsepower relative to the competition, but which made up for that, with reliability, low ...