BMW N74
Encyclopedia
The N74 a V12 engine
V12 engine
A V12 engine is a V engine with 12 cylinders mounted on the crankcase in two banks of six cylinders, usually but not always at a 60° angle to each other, with all 12 pistons driving a common crankshaft....

 built by BMW
BMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...

 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
Valvetronic
The Valvetronic system is a variable valve timing system to offer continuous and precisely variable intake valve lift, from ~0 to 10 mm, and duration. It typically works in conjunction with the independent Double VANOS system that continuously varies the timing...

 and Double VANOS
VANOS
VANOS is an automobile variable valve timing technology developed by BMW in close collaboration with Continental Teves. VANOS varies the timing of the valves by moving the position of the camshafts in relation to the drive gear...

, which is usually found on mainstream modern BMW petrol/gasoline
Gasoline
Gasoline , or petrol , is a toxic, translucent, petroleum-derived liquid that is primarily used as a fuel in internal combustion engines. It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. Some gasolines also contain...

 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
ZF 8HP transmission
The ZF 8HP is an eight-speed automatic transmission, designed and built by ZF Friedrichshafen AG subsidiary ZF Getriebe GmbH in Saarbrücken. It is to debut in a rear-wheel drive application in the new BMW 7 Series 760Li saloon fitted with the V12 engine....

, 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
EngineDisplacementPowerTorqueRedlineYear
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 5972 cc and produces 544 bhp at 5250 rpm and 750 newton metre between 1500 and 5000 rpm.

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

Applications:
  • F01, F02, F03
    BMW F01
    The BMW F01 is the current BMW 7 series that went into production in September 2008. The long-wheelbase model, codenamed BMW F02, is longer than the BMW F01.-Presentation:...

     760i/760Li
    BMW 7 Series
    The BMW 7 Series is a line of full-size luxury vehicles produced by the German automaker BMW. Introduced in 1977, it is BMW's flagship car and is only available as a sedan or extended-length limousine...

  • Rolls-Royce Ghost
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