Common · Knowledge
Renault EF-Type engine
Motor vehicle engine
The EF-Type was a Turbocharged 90° V6 racing engine developed by Renault Sport. The engine was used by Renault, Lotus, Ligier and Tyrrell in Formula One from 1977 to 1986. It was developed by Bernard Dudot from the earlier, 2-litre CH-series V6 engine, designed by François Castaing.
From Wikipedia
The EF-Type was a Turbocharged 90° V6 racing engine developed by Renault Sport. The engine was used by Renault, Lotus, Ligier and Tyrrell in Formula One from 1977 to 1986. It was developed by Bernard Dudot from the earlier, 2-litre CH-series V6 engine, designed by François Castaing. The first iteration, the EF1, used mechanical fuel injection, initially by Kugelfisher. It has an extremely short stroke, at 42.8 mm (1.69 in), giving it a stroke ratio of 2.01. In 1985, the EF4B introduced electronic fuel injection (Bosch Motronic or Renix).
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