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| Name | 1970 Porsche 917 Explained |
| Video Uploader | Video From DPCcars |
| Upload Date | This Video Uploaded At 07-03-2020 13:37:59 |
| Video Discription | The Porsche 917 is a sports prototype race car developed by German manufacturer Porsche. The 917 gave Porsche its first overall wins at the 24 Hours of Le Mans in 1970 and 1971. Powered by the Type 912 flat-12 engine of 4.5, 4.9, or 5 litres, the 917/30 Can-Am variant was capable of a 0-62 mph time of 2.3 seconds, 0–124 mph in 5.3 seconds, and a test track top speed of up to 240 mph. The car was designed by chief engineer Hans Mezger and was built around a very light spaceframe chassis weighing only 93 lb which was permanently pressurized with gas to detect cracks in the welded structure. 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 original 4.5-litre engine, which had produced around 520 bhp in 1969, had been enlarged to 4.9-litres making 600 bhp to 5-litres and produced a maximum of 630 bhp. The 917K models were generally used for the shorter road courses such as Sebring, Brands Hatch, Monza and Spa-Francorchamps. The big prize for Porsche however, was Le Mans. For the French circuit's long, high speed straights, the factory developed special long tail bodywork that was designed for minimum drag and thus highest maximum speed. On the car's debut in 1969, the 917L proved to be nearly uncontrollable as there was so little down force. In fact, they generated aerodynamic lift at the highest speeds. For 1970, an improved version was raced by the factory and for 1971, after very significant development in the wind tunnel, the definitive 917L was raced by both factory and JW. These cars were so stable that the drivers could take their hands off the steering wheel at speeds which reached 246 mph. In 1971 Jo Siffert raced an open-top 917PA Spyder which was naturaly aspirated in the 1971 CanAm series. There is also the "Pink Pig" aerodynamic research version (917/20), and the turbocharged 917/10 and 917/30 CanAm Spyders. Porsche 917s also raced in the European Interseries in various configurations. In the 1973 Can-Am series, the turbocharged version Porsche 917/30 developed 1,100 bhp. Get More Great Car Videos - Subscribe: https://goo.gl/BSIaFc |
| Category | Autos & Vehicles |
| Tags | porsche | porsche 917 | le mans | porsche 917k | porsche 917 sound | porsche 917 le mans | porsche 911 |
