Renault EF-Type engine
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EF-Type engine | ||
---|---|---|
Cooling system Water-cooled | | |
Output | ||
Power output | 510–1,320 bhp (380–984 kW; 517–1,338 PS) | |
Torque output | 290–660 lb⋅ft (393–895 N⋅m)[1] | |
Dimensions | ||
Dry weight | 179 kg (394.6 lb)[2] | |
Chronology | ||
Predecessor | CH | |
Successor | RS |
The EF-Type was a
Renault's decision to use its 1500 cc V6 turbo engines in F1 was one of the boldest decisions ever taken in the sport. In nine full seasons competing against normally aspirated 3000 cc engines, they gave an excellent account of themselves, with:
- One World Championship Runner-Up title in 1983.
- 20 race wins (15 with Renault, 5 with Lotus).
- 50 pole positions (32 with Renault, 18 with Lotus).
- 51 podium finishes (25 with Renault, 20 with Lotus, six with Ligier).
Ultimately, as a result of their success, all F1 teams adopted turbo engines in the 1985 season.
Engines
EF1
1977–1979
Based on the 2-litre "type CHS" engine and developing 510 bhp (380 kW; 517 PS) at 11,000 rpm, this engine underwent several major changes (metallurgy, mixed air-water exchanger) before bringing the Renault RS01 its first points in 1978 and its first pole position in 1979.
- EF1: 1.5 L (1,492 cc) Bore x Stroke 86 mm × 42.8 mm (3.39 in × 1.69 in) 7.0:1 Compression, one Garrett turbocharger.
1979–1983
With its two small turbochargers, this engine reduced
- EF1: 1.5 L (1,492 cc) Bore x Stroke 86 mm × 42.8 mm (3.39 in × 1.69 in) 7.0:1 Compression, two KKKturbochargers.
EF4
1984
This engine marked the return of Garrett turbochargers. Fitted to the
- EF4: 1.5 L (1,492 cc) Bore x Stroke 86 mm × 42.8 mm (3.39 in × 1.69 in) 7.0:1 Compression, two Garrett turbochargers.
It was the last engine to be badged "Renault Gordini", as there was now a new name to promote: Renault Sport.
"Type-Bis" early 1985
This engine's defining characteristics were its centralized electronic injection and ignition control systems. Generating just over 800 bhp (597 kW; 811 PS), it powered the Renault RE60, Lotus 97T, Ligier JS25 and Tyrrell 014. It was responsible for one race win, two pole positions and two podium finishes.
- EF4: 1.5 L (1,492 cc) Bore x Stroke 86 mm × 42.8 mm (3.39 in × 1.69 in) 7.0:1 Compression, two Garrett turbochargers.
EF15
mid-1985
With greater fuel economy thanks to its new dimensions and a lower boost pressure, its horsepower nevertheless oscillated between 800 bhp (597 kW; 811 PS) and 1,000 bhp (746 kW; 1,014 PS), thanks to metallurgical developments in the turbochargers. It earned two race wins and five pole positions for Lotus, as well as ten podium finishes (four for the Lotus 97T, four for the Ligier JS25 and two for the Renault RE60).
- EF15: 1.5 L (1,494 cc) Bore x Stroke 80.1 mm × 49.4 mm (3.15 in × 1.94 in) 7.5:1 Compression, two Garrett turbochargers.
"Type-B" early 1986
This engine boasted two innovative features that would soon gain widespread acceptance – static ignition and pneumatic valve actuation – which allowed it to reach 12,500 rpm. Capable of generating 900 bhp (671 kW; 912 PS) in race trim, it would record two race wins and five pole positions with Lotus, as well as five podium finishes (three with Lotus and two with Ligier). It powered the Lotus 98T and the Ligier JS27.
- EF15B: 1.5 L (1,494 cc) Bore x Stroke 80.1 mm × 49.4 mm (3.15 in × 1.94 in) 7.5:1 Compression, two Garrett turbochargers.
"Type-C" mid 1986
Equipped with a number of new features (
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1977 | Equipe Renault Elf | Renault RS01 | M | ARG | BRA | RSA | USW | ESP | MON | BEL | SWE | FRA | GBR | GER | AUT | NED | ITA | USA | CAN | JPN | 0 | - | |
Jean-Pierre Jabouille | Ret | Ret | Ret | Ret | DNQ | ||||||||||||||||||
1978 | Equipe Renault Elf | Renault RS01 | M | ARG | BRA | RSA | USW | MON | BEL | ESP | SWE | FRA | GBR | GER | AUT | NED | ITA | USA | CAN | 3 | 12th | ||
Jean-Pierre Jabouille | Ret | Ret | 10 | NC | 13 | Ret | Ret | Ret | Ret | Ret | Ret | Ret | 4 | 12 | |||||||||
1979 | Equipe Renault Elf | Renault RS01 Renault RS10 |
M | 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 | ||||||||
1980 | Equipe Renault Elf | Renault RE20 | M | 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 | 1F | 1F | 9 | 4 | Ret | 5 | NC | Ret | 9PF | 2PF | 10P | Ret | 7 | |||||||||
1981 | Equipe Renault Elf | RE20B RE30 |
M | USW | BRA | ARG | SMR | BEL | MON | ESP | FRA | GBR | GER | AUT | NED | ITA | CAN | CPL | 54 | 3rd | |||
Alain Prost | Ret | Ret | 3 | Ret | Ret | Ret | Ret | 1F | Ret | 2P | Ret | 1P | 1 | Ret | 2 | ||||||||
René Arnoux | 8 | Ret | 5 | 8 | DNQ | Ret | 9 | 4P | 9PF | 13 | 2P | Ret | RetP | Ret | Ret | ||||||||
1982 | Equipe Renault Elf | RE30B | M | RSA | BRA | USW | SMR | BEL | MON | DET | CAN | NED | GBR | FRA | GER | AUT | SUI | ITA | CPL | 62 | 3rd | ||
Alain Prost | 1F | 1PF | Ret | Ret | RetP | 7 | NCPF | Ret | Ret | 6 | 2 | Ret | 8 | 2PF | Ret | 4P | |||||||
René Arnoux | 3P | Ret | Ret | RetP | Ret | RetP | 10 | Ret | RetP | Ret | 1P | 2 | Ret | 16 | 1F | Ret | |||||||
1983 | Equipe Renault Elf | RE30C RE40 |
M | BRA | USW | FRA | SMR | MON | BEL | DET | CAN | GBR | GER | AUT | NED | ITA | EUR | RSA | 79 | 2nd | |||
Alain Prost | 7 | 11 | 1PF | 2 | 3P | 1P | 8 | 5 | 1F | 4 | 1F | Ret | Ret | 2 | Ret | ||||||||
Eddie Cheever | Ret | 13 | 3 | Ret | Ret | 3 | Ret | 2 | Ret | Ret | 4 | Ret | 3 | 10 | 6 | ||||||||
1984 | Equipe Renault Elf | RE50 | M | BRA | RSA | BEL | SMR | FRA | MON | CAN | DET | DAL | GBR | GER | AUT | NED | ITA | EUR | POR | 34 | 5th | ||
Patrick Tambay | 5 | RetF | 7 | Ret | 2P | Ret | WD | Ret | Ret | 8 | 5 | Ret | 6 | Ret | Ret | 7 | |||||||
Derek Warwick | Ret | 3 | 2 | 4 | Ret | Ret | Ret | RetF | Ret | 2 | 3 | Ret | Ret | Ret | 11 | Ret | |||||||
Philippe Streiff | Ret | ||||||||||||||||||||||
1985 | Equipe Renault Elf | RE60 RE60B |
G | 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 |