BMW M5 E60 V10 S85
The BMW S85 is a DOHC first – V10 piston engine. This is a high-revving engine designed to utilize power from a wide rev band.
Having a redline of 8250 rpm, S85 achieves over 100 bhp (70 kW)/litre. The S85 engine features a very high compression ratio of 12.0:1, exceeding the previous S54 ratio of 11.5:1.
It produces over 100 hp more than the previous E39 4.9liter V8. The S85 engine utilizes both individual throttle bodies and Double VANOS (BMW’s infinitely variable timing for intake and exhaust cams).
BMW S85 has power output – 373 kilowatts (500 hp) and torque output – 520 N·m (384 lb·ft).
Unlike other BMW engines, there are no mass market “M” or “N” versions of the S85 and nor are there any shared parts, as this engine is used exclusively in BMW M performance cars.
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