Mecachrome V634 engine
| Mecachrome V634 engine | |
|---|---|
| Overview | |
| Manufacturer | Mecachrome (in collaboration with Teos Engineering) | 
| Production | 2015–present | 
| Layout | |
| Configuration | 95° V6 | 
| Displacement | 3.396 L (207 cu in) | 
| Cylinder bore | 96 mm (3.78 in) | 
| Piston stroke | 78.2 mm (3.08 in) | 
| Cylinder block material | Aluminum alloy | 
| Cylinder head material | Aluminum alloy | 
| Valvetrain | 24-valve, DOHC, four-valves per cylinder | 
| Combustion | |
| Turbocharger | Naturally-aspirated (Formula 3), single-turbocharged (Formula 2 and World Endurance Championship) | 
| Fuel system | Gasoline direct fuel injection | 
| Management | Magneti Marelli Marvel 8 ECU/GCU including data logging system | 
| Fuel type | Elf LMS 89.6/99.6/101.6/102 RON (2016-2022) unleaded later Aramco (2023-present) sustainable fuels | 
| Oil system | Dry sump | 
| Output | |
| Power output | 380–650 hp (283–485 kW) | 
| Torque output | 250–490 lb⋅ft (339–664 N⋅m) | 
| Dimensions | |
| Dry weight | 291 lb (132 kg) | 
| Chronology | |
| Predecessor | Mecachrome V8108 GP2 V8 | 
The Mecachrome V634 engine (also known as Mecachrome Formula 2 V6) is a 3.4-litre, turbocharged or naturally-aspirated, V6 racing engine, designed, developed and produced by Mecachrome, and is used in the FIA Formula 2 Championship, FIA Formula 3 Championship, and the World Endurance Championship.