BMW N74
From Wikipedia, the free encyclopedia
| BMW N74 | |
|---|---|
| Overview | |
| Manufacturer | BMW |
| Production | 2008-present |
| Combustion chamber | |
| Configuration | V12 |
| Chronology | |
| Predecessor | BMW N73 |
The BMW N74 is a twin-turbocharged V12 DOHC piston engine which replaced the N73 and was produced from 2009-present (as of November 2013).
Design
Compared with its N73 naturally-aspirated predecessor, the N74 features twin-turbochargers. The N74 was the first turbocharged BMW engine to feature variable valve lift and variable valve timing.[citation needed]
The engine marked BMW's first use of an 8-speed automatic transmission (the ZF 8HP90).[1]
Models
| Engine | Displacement | Power | Torque | Redline | Year |
|---|---|---|---|---|---|
| N74B60 | 5,972 cc (364 cu in) | 400 kW (540 hp) @ 5250 rpm | 750 N·m (550 lb·ft) @ 1500-5000 rpm | 7000 rpm | 2009 |
| N74B66 | 6,592 cc (402 cu in) | 419 kW (562 hp) @ 5250 rpm | 780 N·m (580 lb·ft) @ 1500-5000 rpm | 7000 rpm | 2010 |
N74B60
The N74B60 produces 544 bhp (406 kW) @ 5250 rpm and 750 N·m (550 lb·ft) at 1500 5000 rpm.[2][3]
Applications:
- 2008-present F01, F02, F03 760i/760Li
N74B66
An enlarged version of the N74B60, displacing 6.6 litres and boasting in excess of 570 bhp (430 kW) features in the Rolls-Royce Ghost.[4]
Applications:
- 2010-present Rolls-Royce Ghost
See also
References
- ↑ http://www.caranddriver.com/reviews/2010-bmw-760li-second-drive
- ↑ Interone Worldwide GmbH (2008-06-17). "BMW 7 Series Sedan : Twelve-cylinder petrol engine (760i, 760Li)". Bmw.com. Archived from the original on 24 September 2010. Retrieved 2010-09-13.
- ↑ http://www.bmwheaven.com/database/engine.php?type=N74#/229
- ↑ http://www.caranddriver.com/reviews/2010-bmw-760li-second-drive
External links
| « previous — BMW road car engine timeline, 1980s-2000s — next » | |||||||||||||||||||||||||||||||||||||||||
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| Family | 1980s | 1990s | 2000s | ||||||||||||||||||||||||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||||||||||||
| 4-cylinder petrol | << M10 | M40 | M43 | N42 | N43 / N45 / N46 >> | ||||||||||||||||||||||||||||||||||||
| M42 | M44 | ||||||||||||||||||||||||||||||||||||||||
| S14 | |||||||||||||||||||||||||||||||||||||||||
| 6-cylinder petrol | << M20 | M50 | M52 | M54 / M56 | N52 | N53 >> | |||||||||||||||||||||||||||||||||||
| N54 | N55 >> | ||||||||||||||||||||||||||||||||||||||||
| S50 / S52 | S54 | ||||||||||||||||||||||||||||||||||||||||
| << M30 | |||||||||||||||||||||||||||||||||||||||||
| << M88 / M90 | S38 | ||||||||||||||||||||||||||||||||||||||||
| M102 | M106 | ||||||||||||||||||||||||||||||||||||||||
| 8-cylinder petrol | M60 | M62 | N62 | N63 >> | |||||||||||||||||||||||||||||||||||||
| S62 | |||||||||||||||||||||||||||||||||||||||||
| S65 >> | |||||||||||||||||||||||||||||||||||||||||
| 10-cylinder petrol | S85 | ||||||||||||||||||||||||||||||||||||||||
| 12-cylinder petrol | M70 | M73 | N73 | N74 >> | |||||||||||||||||||||||||||||||||||||
| S70 | |||||||||||||||||||||||||||||||||||||||||
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