BMW S85
The BMW S85B50 is a naturally aspirated V10 petrol engine which replaced the BMW S62 V8 engine in the M5 model and was produced from 2005–2010. It was both BMW's first and only production V10 engine, and the first petrol V10 engine to be available in a production sedan (saloon).
| BMW S85 engine | |
|---|---|
S85B50 in an E63 M6 | |
| Overview | |
| Manufacturer | BMW |
| Production | 2005–2010 |
| Layout | |
| Configuration | 90° V10 |
| Displacement | 5.0 L (4,999 cc) |
| Cylinder bore | 92 mm (3.62 in) |
| Piston stroke | 75.2 mm (2.96 in) |
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC w/ VVT |
| Combustion | |
| Fuel type | Petrol |
| Output | |
| Power output | 378 kW (507 hp) |
| Torque output | 520 N⋅m (384 lb⋅ft) |
| Chronology | |
| Predecessor | None |
| Successor | BMW S63 |
Introduced in the E60 M5, the S85 was inspired by BMW's previous Formula One involvement. Unlike most other BMW M engines, the S85 is not related to a regular production BMW engine.
The BMW S65 V8 engine (used in the E92 M3) is based on the S85.
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