BMW N74

BMW N74B60 engine

Manufacturer	BMW, Bayerische(Bavarian) Motoren Werke AG
Production	2009-present
Predecessor	BMW N73
Class	DOHC 60 degree V12

The N74 a V12 engine built by BMW in Munich, Germany. As of 2009 it is the company's flagship engine in the 7-Series, only being offered in the Li long wheelbase variant.

The N74 is BMW's first ever V12 engine to feature twin-turbocharging, the use of a TwinPower Turbo twin-scroll turbochargers, and High Precision Injection. It also features Valvetronic and Double VANOS, which is usually found on mainstream modern BMW petrol/gasoline engines; the N74 was the first BMW engine to feature these technologies on a turbocharged and/or high-performance engine.

The engine marked the world's first application of the new ZF 8HP transmission, an 8 speed automatic designed to reduce fuel consumption at higher speeds with the introduction of the 7th and 8th gears, which reduce engine speeds dramatically.

Models

Engine	Displacement	Power	Torque	Redline	Year
N74B60	6.0 L (5972 cc/364 in³)	400 kW (544 bhp) @ 5250 rpm	750 N·m (553 ft·lbf) @ 1500-5000 rpm	7000 rpm	2009

N74B60

The N74B60 displaces 5,972 cc (5.972 L; 364.4 cu in) and produces 544 bhp (406 kW) at 5250 rpm and 750 N·m (550 lb·ft) between 1500 and 5000 rpm^[1].

An enlarged version of the N74, displacing 6.6 litres and boasting in excess of 570 bhp (430 kW) will feature in the forth coming Rolls-Royce Ghost.

Applications:

• F01, F02, F03 760i/760Li
• Rolls-Royce Ghost

See also

• List of BMW engines

References

1. ^ Interone Worldwide GmbH (2008-06-17). "BMW 7 Series Sedan : Twelve-cylinder petrol engine (760i, 760Li)". Bmw.com. http://www.bmw.com/com/en/newvehicles/7series/sedan/2008/allfacts/engine/12c_petrol.html. Retrieved 2010-09-13.