- January 12, 2010
- Historic Racing 911, Porsche 911 Rally, Porsche 911 RSR, TwinSpark Porsche Parts
- Posted by Rick Bruins
- 1 Comment
The Mechanical Fuel Injection set up on early Porsches was allegedly derived from the need to fly upside down. In the Second World War aerial combat developed into serious forms of aerobatics and there was an advantage to be had by those pilots who could manage their throttle and therefore acceleration, irrespective of the position of the plane. Traditional carburetion was inadequate as carburettors rely on gravity to keep the float chambers filled. Trust the German engineering cadre to come up with a solution. Their Messerschmidt aircraft could pull negative G’s thanks to this technology and the British Spitfires could not follow their trail without stalling their carburetted engines.
The constant fuel pressure combined with excellent fuel atomization, leading to a maximum fuel burn ratio in gasoline engines, had Mercedes, Porsche and later BMW, apply this expensive and complex technology on their race and production cars. MFI was overtaken by Electronic Fuel Injection only 20 [...]
