BMW B38 engine
BMW B38 engine | |
---|---|
Overview | |
Manufacturer | BMW |
Production | 2013–present |
Layout | |
Configuration | straight-3 |
Displacement | 1.2–1.5 L (73–92 cu in) |
Valvetrain | DOHC |
Compression ratio | 11:1 |
Combustion | |
Turbocharger | Single-scroll |
Fuel system | Direct injection |
Fuel type | Gasoline |
Chronology | |
Predecessor | BMW N13 |
The BMW B38 is a turbocharged straight-three petrol engine, which replaced the straight-four BMW N13 and has been in production since 2013. It is part of a modular BMW engine family of straight-three (B38), straight-four (B48) and straight-six (B58) petrol engines,[1] which use a displacement of 500 cc (30.5 cu in) per cylinder.
The B38 is used in front-wheel drive cars (such as the Mini Hatch and BMW 2 Series Active Tourer), as well as BMW's traditional rear-wheel drive and all-wheel drive (xDrive) configurations. The first car to use the B38 is the BMW i8 hybrid sports coupé,[2] where it is used as a transverse mid-mounted engine.[3]
Design
The B38 features direct injection, an 11:1 compression ratio,[4] variable valve timing (double-VANOS) and a single-scroll turbocharger with the world's first aluminium turbine housing,[5][6] manufactured by Continental.
On the 1.2 Litre versions, the bore is 78 mm (3.1 in) and the stroke is 83.6 mm (3.3 in). On the 1.5 Litre versions, the bore is 82 mm (3.2 in) and the stroke is 94.6 mm (3.7 in).
Models
Engine | Displacement | Power | Torque | Years |
---|---|---|---|---|
B38A12U0[7][8] | 1,198 cc (73 cu in) | 55 kW (74 bhp) at 4,000 rpm |
150 N⋅m (111 lb⋅ft) at 1,400–4,000 rpm |
2014– |
75 kW (101 bhp) at 4,250 rpm |
180 N⋅m (133 lb⋅ft) at 1,400–4,000 rpm |
2014- | ||
B38A15M0 / B38B15M0[8][9][10] | 1,499 cc (91 cu in) | 100 kW (134 bhp) at 4,400–6,000 rpm |
220 N⋅m (162 lb⋅ft) at 1,250–4,300 rpm |
2014–2018 |
B38K15T0[3] | 170 kW (228 bhp) at 5,800 rpm |
320 N⋅m (236 lb⋅ft) at 3,700 rpm |
2013– | |
B38A15M1/B38B15M1 (improvement of B38A15M0) | 1,499 cc (91cu in) | 104kW (141bhp) at 4,400-6,000rpm | 220N•m (162lb•ft) at 1,250-4,300rpm | 2018- |
B38A12U0
Applications:[7]
55 kW (74 hp) version:
- 2014–current F55/F56 Mini One First
75 kW (101 hp) version:
- 2014–2018 F55/F56 Mini One
B38A15M0 / B38B15M0 (B38A15M1/B38B15M1 for post-2018 manufactured engines)
Applications:[9] 75 kW (101 hp) version:
80 kW (107 hp) version:
- 2015–2019 BMW F20/F21 116i
100 kW (134 hp) version (104kW (141bhp) for post-2018 manufacture)
- 2015–2019 BMW F20/F21 118i
- 2015–current BMW F22/F23 218i coupe / convertible
- 2014–current BMW F45/F46 218i Active Tourer / Gran Tourer
- 2015–2019 BMW F30/F31 318i LCI
- 2015–current BMW F48 X1 sDrive18i[11]
- 2014–current Mini F55/F56/F57 Cooper
- 2015–2019 Mini F54 Clubman
- 2017–current Mini F60 Countryman
- 2017–current BMW F39 X2 sDrive18i
- 2017–current BMW F45 225xe Active Tourer (PHEV)
- 2019–current BMW F40 118i
- 2019–current BMW F44 218i Gran Coupé
B38K15T0
Applications:[3]
- 2013–2020 BMW I12 i8
- 2020–present Karma Revero GT/GTS
References
- ^ "BMW modular engines: B37, B38, B47 and B48". www.bmwblog.com. Retrieved 10 May 2017.
- ^ "BMW Dreizylinder-Motoren: Mehr Details im Interview mit Dr. Lopez". www.bimmertoday.de (in German). Retrieved 28 May 2017.
- ^ a b c "Product information: I12 Powertrain". www.bimmerpost.com. Retrieved 28 May 2017.
- ^ "BMW B38 Three Cylinder Turbocharged Engines". www.unixnerd.co.uk. Retrieved 30 September 2020.
- ^ Morey, Bruce (19 August 2014). "Inside Continental's new aluminum turbocharger". www.sae.org. Retrieved 30 September 2020.
- ^ "Continental Supplies World's First Turbocharger with Aluminum Turbine Housing in Cars". www.continental.com. Retrieved 30 September 2020.
- ^ a b "B38A12U0". bmwarchive.de. Archived from the original on 14 December 2014. Retrieved 14 December 2014.
- ^ a b "3-CYLINDER GASOLINE ENGINES". www.bmwgroup.com. Archived from the original on 14 December 2014.
- ^ a b "B38A15M0". www.bmwarchive.de. Archived from the original on 14 December 2014. Retrieved 14 December 2014.
- ^ "HARDTOP 2 DOOR: ALL FEATURES". www.miniusa.com. Retrieved 29 December 2015.
- ^ "BMW X!: At a glance". www.bmw.com. Retrieved 28 May 2017.