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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 "Can-Am killer", Porsche 917–30, on display at the Porsche Stuttgart-Zuffenhausen Museum, Germany Porsche, Penske, and Donohue quickly started the development of the 917-30 , complete with a reworked aerodynamic "Paris" body and a 5.4-liter turbocharged flat-12 engine whose output could be adjusted from about 1,100 to 1,500 bhp [ citation ...
Riverside International Raceway (sometimes known as Riverside, RIR, or Riverside Raceway) was a motorsports race track and road course established in the Edgemont area of Riverside County, California, just east of the city limits of Riverside and 50 mi (80 km) east of Los Angeles, in 1957. In 1984, the raceway became part of the newly ...
Overview. The engine was designed by chief engineer Hans Mezger under the leadership of Ferdinand Piëch and Helmuth Bott. [9] Power came from a new 4.5-litre air-cooled engine designed by Mezger, which was a combination of 2 of Porsche's 2.25L flat-6 engines used in previous racing cars. The 'Type 912' engine featured a 180° flat-12 cylinder ...
Vasek Polak died on April, 17 1997 from cardiac arrest resulting from complications due to an accident on the German Autobahn one month earlier. He was driving a Porsche 911 Turbo S when he crashed at speeds in excess of 110 mph, breaking both of his arms and legs. After a month of recuperation Polak was returning to California in an airplane ...
The 1971 24 Hours of Le Mans was the 39th Grand Prix of Endurance, and took place on 12 and 13 June 1971. It was the ninth round of the 1971 International Championship for Makes . This year would be the swansong of the mighty 5-litre engines – the incoming regulations would put a 3-litre limit on engine capacity for Group 5 Sports Cars.
The 1970 24 Hours of Daytona was an endurance race at the 3.8 mile road circuit at the Daytona International Speedway, Daytona Beach, Florida, USA that took place on January 31 and February 1, 1970. It was the first race of the 1970 World Sportscar Championship season. This was the first race for the iconic Porsche 917K and Ferrari 512 S cars.
Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar calendar in ancient civilization. Marking a massive comet strike as the ...