BMW N55
The BMW N55 is a turbocharged straight-six petrol (gasoline) engine that began production in 2009. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.
| BMW N55 | |
|---|---|
| Overview | |
| Production | 2009–2019 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 3.0 L (2,979 cc) |
| Cylinder bore | 84 mm (3.3 in) |
| Piston stroke | 89.6 mm (3.5 in) |
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC, with VVT & VVL |
| Valvetrain drive system | Chain |
| Compression ratio | 10.2:1 |
| RPM range | |
| Max. engine speed | 7,000 RPM |
| Combustion | |
| Turbocharger | Single BorgWarner twin-scroll with Intercooler |
| Management | Bosch MEVD 17.2 |
| Fuel type | Petrol |
| Chronology | |
| Predecessor | BMW N54 |
| Successor | BMW B58 |
The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger. It also won three straight Ward's 10 Best Engines awards in 2011–2013.
Following the introduction of the BMW B58 engine in 2015, the N55 began to be phased out.
The BMW S55 engine is a high performance version of the N55 made by BMW M GmbH, which is used by the F80 M3, F82 M4 and F87 M2 Competition/CS.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.