BMW S85
From Wikipedia, the free encyclopedia
| BMW S85 engine | |
|---|---|
| Manufacturer | BMW Bayerische Motoren Werke |
| Production | 2005– |
| Predecessor | S62 |
| Class | V10 |
The BMW S85B50 is a DOHC 40-valve V10 automotive piston engine found on the E60 M5 and E63 M6. It was inspired by BMW's formula 1 racing division and shares many components and technology that powers BMW Williams F1 cars.
[edit] Technology & Performance
The S85B50 is a high-revving engine designed to utilize power from a wide rev band. Having a redline of 8250 rpm, it achieves over 100bhp/liter and features a very high compression ratio of 12.0:1, beating the previous M3 of 11.5:1
- 5.0 Liter V10 engine, 507 hp/520Nm, 383 ft·lbf torque
- Double VANOS system which varies both intake and exhaust valve timing
- 10 individual electronically controlled throttles
[edit] Awards
In 2005, the first year that it was nominated, the S85B50 won four different International Engine of the Year awards in the following 4 categories:
- International Engine of the Year, BMW 5.0 Liter V10 (M5,M6)
- Best Performance Engine
- Best New Engine
- Best Above 4.0 Liter
In 2006 the S85B50 again won several International Engine of the Year awards, winning in the following 3 categories:
- International Engine of the Year, BMW 5.0 Liter V10 (M5,M6)
- Best Performance Engine
- Best Above 4.0 Liter
