Renault EF-Type 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.

The first iteration, the EF1, used mechanical fuel injection, initially by Kugelfisher. It has an extremely short stroke, at , giving it a stroke ratio of 2.01. In 1985, the EF4B introduced electronic fuel injection (Bosch Motronic or Renix).

Formula One World Championship results Year Entrants Chassis Tyres Drivers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Points WCC Equipe Renault Elf Renault RS01 ARG BRA RSA USW ESP MON BEL SWE FRA GBR GER AUT NED ITA USA CAN JPN0- Jean-Pierre Jabouille Ret Ret Ret Ret DNQ Equipe Renault Elf Renault RS01 ARG BRA RSA USW MON BEL ESP SWE FRA GBR GER AUT NED ITA USA CAN312th Jean-Pierre Jabouille Ret Ret 10 NC 13 Ret Ret Ret Ret Ret Ret Ret 4 12 Equipe Renault Elf Renault RS01 Renault RS10 ARG BRA RSA USW ESP BEL MON FRA GBR GER AUT NED ITA CAN USA 26 6th Jean-Pierre Jabouille Ret 10 Ret DNS Ret Ret 8 1 Ret Ret Ret Ret 14 Ret Ret René Arnoux Ret Ret Ret DNS 9 Ret Ret 3 2 Ret 6 Ret Ret Ret 2 Equipe Renault Elf Renault RE20 ARG BRA RSA USW BEL MON FRA GBR GER AUT NED ITA CAN USA 38 4th Jean-Pierre Jabouille Ret Ret Ret 10 Ret Ret Ret Ret Ret 1 Ret Ret Ret René Arnoux Ret 9 4 Ret 5 NC Ret Ret 7 Equipe Renault Elf RE20B RE30 USW BRA ARG SMR BEL MON ESP FRA GBR GER AUT NED ITA CAN CPL 543rd Alain Prost Ret Ret 3 Ret Ret Ret Ret Ret Ret 1 Ret 2 René Arnoux 8 Ret 5 8 DNQ Ret 9 13 Ret Ret Ret Equipe Renault Elf RE30B RSA BRA USW SMR BEL MON DET CAN NED GBR FRA GER AUT SUI ITA CPL 623rd Alain Prost Ret Ret 7 Ret Ret 6 2 Ret 8 Ret René Arnoux Ret Ret Ret 10 Ret Ret 2 Ret 16 Ret Equipe Renault Elf RE30C RE40 BRA USW FRA SMR MON BEL DET CAN GBR GER AUT NED ITA EUR RSA 792nd Alain Prost 7 11 2 8 5 4 Ret Ret 2 Ret Eddie Cheever Ret 13 3 Ret Ret 3 Ret 2 Ret Ret 4 Ret 3 10 6 Equipe Renault Elf RE50 BRA RSA BEL SMR FRA MON CAN DET DAL GBR GER AUT NED ITA EUR POR 34 5th Patrick Tambay 5 7 Ret Ret WD Ret Ret 8 5 Ret 6 Ret Ret 7 Derek Warwick Ret 3 2 4 Ret Ret Ret Ret 2 3 Ret Ret Ret 11 Ret Philippe Streiff Ret Equipe Renault Elf RE60 RE60B BRA POR SMR MON CAN DET FRA GBR GER AUT NED ITA BEL EUR RSA AUS 16 7th Patrick Tambay 5 3 3 Ret 7 Ret 6 Ret Ret 10 Ret 7 Ret 12 Ret Derek Warwick 10 7 10 5 Ret Ret 7 5 Ret Ret Ret Ret 6 Ret Ret François Hesnault Ret

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