| Mitsubishi R39B[1][2] | |
|---|---|
| Overview | |
| Manufacturer | Mitsubishi |
| Production | 1971 |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 1,994 cc (2.0 L; 121.7 cu in) |
| Cylinder bore | 86 mm (3.4 in) |
| Piston stroke | 86 mm (3.4 in) |
| Cylinder block material | Cast iron |
| Valvetrain | 4-valve valves per cylinder, hydraulic valve lifters, belt-driven double overhead camshaft (DOHC)[3] |
| Combustion | |
| Fuel system | Fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled[4] |
| Output | |
| Power output | 280–290 hp (209–216 kW) |
The Mitsubishi R39B is a 2.0 L (120 cu in), four-stroke, DOHC, naturally-aspirated, four-cylinder racing engine, designed, developed, and built by Mitsubishi, for the Japanese Formula 2000 championship, in 1971.[5] It is itself based on the Saturn engine.