| Ford Indy V-8 | |
|---|---|
| Overview | |
| Manufacturer | Ford |
| Production | 1963–1971 (Ford engine) 1972–1978 (Foyt-badged engine) |
| Layout | |
| Configuration | 90° V-8 |
| Displacement | 159–320 cu in (2.61–5.24 L)[1][2] |
| Cylinder bore | 3.76–3.80 in (96–97 mm) |
| Piston stroke | 2.87 in (73 mm) |
| Valvetrain | 32-valve, DOHC, four-valves per cylinder[3] |
| Compression ratio | 10.2:1-12.5:1[4] |
| Combustion | |
| Fuel system | Mechanical fuel injection |
| Fuel type | Gasoline |
| Oil system | Dry sump |
| Output | |
| Power output | 375–800 hp (280–597 kW) |
| Torque output | 269–525 lb⋅ft (365–712 N⋅m)[5] |
| Dimensions | |
| Dry weight | 350–406 lb (159–184 kg) |
| Chronology | |
| Successor | Ford-Cosworth Indy V8 engine |
The Ford Indy V8 engine is a V-8 engine, initially specially designed by Ford for Indy car racing, from 1963 onwards, winning the Indy 500 four times as Ford, plus once as Foyt in 1977.
As naturally-aspirated DOHC version, it won the 1965 Indianapolis 500 as well as in 1966 and 1967. When a turbocharged Offenhauser took the win in 1968, Ford also reduced capacity and added a turbocharger, winning the 1969 Indianapolis 500. Ford ended the works campaign after 1971, handing over the design to AJ Foyt who continued until 1978, winning the Indy 500 in 1977.
Concurrently, in England, Ford had since 1965 sponsored the successful Cosworth DFV Formula One engine, a more compact DOHC V8, designed with a 3.0 liter displacement. For the 1976 USAC Championship Car season, Ford returned to Indy car racing with the turbocharged 2.65 liter Ford-sponsored Cosworth DFX engine.[6]
- ^ "Ford 255 DOHC Indy". Retrieved 23 May 2022.
- ^ "1969 EAGLE WESLAKE FORD 'SANTA ANA' INDY CAR". Retrieved 2 March 2022.
- ^ "10 Awesome Ford Engines". 28 July 2015. Retrieved 14 May 2022.
- ^ "1965 Lotus 38 Ford Specifications".
- ^ "Lotus 38: The Special Relationship | Colin Chapman Archive and Resource".
- ^ "Cosworth DFX V-8 Engine, 1975-1985". Retrieved 23 May 2022.