BMW B58
| BMW B58 | |
|---|---|
 | |
| Overview | |
| Manufacturer | BMW |
| Production | 2015 – present |
| Layout | |
| Configuration | Straight-six |
| Displacement | 3.0 L (2,998 cc) |
| Cylinder bore | 82 mm (3.23 in) |
| Piston stroke | 94.6 mm (3.72 in) |
| Cylinder block material | Closed-deck |
| Valvetrain | DOHC 4 valves x cyl. with Valvetronic double Vanos |
| Compression ratio | 11.0:1 |
| RPM range | |
| Max. engine speed | 7,000 |
| Combustion | |
| Turbocharger | Single twin-scroll |
| Fuel system | Direct injection |
| Fuel type | Petrol |
| Cooling system | Water-cooled |
| Output | |
| Power output | 240–285 kW (326–387 PS; 322–382 hp) |
| Torque output | 450–500 N⋅m (332–369 lb⋅ft) |
| Chronology | |
| Predecessor | BMW N55 |
The BMW B58 is a turbocharged inline-six engine which began production in 2015.[1] The B58 replaced the N55 and was launched in the F30 340i.[2]
The B58 is part of BMW's new modular engine family - each engine using a displacement of 500 cc (30.5 cu in) per cylinder - following the B38 and B48 engine.[3]
In 2017, the B58 (installed in the M240i) topped Ward's 10 Best Engines list.
The S58 engine, to be released in early 2019, will be the high performance version of the B58.[4][5]
Design
Compared with its BMW N55 predecessor, the B58 features a 20% increase in boost pressure, a closed-deck engine block design, an increase in compression ratio to 11.0:1 and a slight increase in displacement from 2,979 to 2,998 cc (181.8 to 182.9 cu in). The intercooler - a water-to-air design - is integrated into the intake plenum, to reduce the volume of air between the turbocharger and the cylinders.[6]
As per the N55, the B58 also features a single twin-scroll turbo, direct fuel injection, variable valve timing (called double Vanos by BMW), variable valve lift (called Valvetronic by BMW).[7][8] The redline remains at 7,000 rpm, the bore and the stroke is 82 mm × 94.6 mm (3.23 in × 3.72 in).
The B58 also features an engine-mounted heat encapsulation system to reduce engine wear and emissions during start-up.[9]
As a part of BMW's new modular engine family, the crankcase is a completely new design identical with the B57 diesel version,[10] engineered as both a gasoline and diesel engine in one common part. The closed deck crankcase is equipped with a completely new structure which can be identified by a complex array of ribs on the exhaust and intake side and an additional reinforcement frame on the oil pump side.
Models
| Engine | Power | Torque | Years |
|---|---|---|---|
| B58B30M0 | 240 kW (326 PS; 322 hp) at 5,500–6,500 rpm |
450 N⋅m (332 lb⋅ft) at 1,380–5,000 rpm |
2015– |
| 250 kW (340 PS; 335 hp) at 5,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,520–4,500 rpm |
2016– | |
| 250 kW (340 PS; 335 hp) at 5,500–6,500 rpm |
450 N⋅m (332 lb⋅ft) at 1,380–5,200 rpm |
2017– | |
| 265 kW (360 PS; 355 hp) at 5,500–6,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,520–4,800 rpm |
2016– | |
| B58B30M1 | 250 kW (340 PS; 335 hp) at 5,000–6,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,600–4,500 rpm |
2018– |
| B58B30O1 | 285 kW (387 PS; 382 hp) at 5,000–6,500 rpm |
B58B30M0: 240 kW version
Applications:
- 2016–present G11 740i/Li
- 2016–present F32/F33 440i
- 2016–present F30/F31/F34 340i
B58B30M0: 250 kW version
Applications:
- 2016–present F20/F21 M140i
- 2016–present F22/F23 M240i[11]
- 2017–present G30/G31 540i[12]
- 2017–present G32 640i
B58B30M0: 265 kW version
Applications:
B58B30M0: 265 kW version
This version was used for 3-/4-Series with the "M Performance Power Pack and Sound Kit".
Applications:
- 2016-2018 F30/F31/F34 340i[14]
- 2016-present F32/F33/F36 440i
- 2017-present G30/G31 540i[15]
B58B30M1: 250 kW
Applications:
- 2018-present G05 X5 xDrive40i/sDrive40i[16]
- 2018-present G07 X7 xDrive40i
- 2018-present G29 Z4 M40i (in countries subject to EU emissions standards)[17]
- 2019-present G20 M340i (in countries subject to EU emissions standards)
- 2019-present A90/J29 Toyota Supra
- 2020 Morgan Plus Six[18]
B58B30O1
Applications:
- 2018-present G29 Z4 M40i (in countries not subject to EU emissions standards)
- 2019-present G20 M340i (in countries not subject to EU emissions standards)
References
- ^ DeMattia, Nico (28 October 2015). "BMW's N55 engine will be missed, but the new B58 might be even better". BMWBlog. Retrieved 20 May 2016.
- ^ "BMW F30 LCI 340i". www.paultan.org.
- ^ Meiners, Jens (22 April 2011). "BMW's New Three-, Four-, and Six-Cylinder Engine Family Detailed". CARandDriver. Retrieved 21 May 2016.
- ^ "BMW F97 X3 M launching in 2019 with new S58 engine and 450 horsepower". www.bmwblog.com. Retrieved 28 December 2017.
- ^ "BMW Developing S58 Engine as S55 Successor, Will Debut in 2019 X3 M". www.autoevolution.com. Retrieved 28 December 2017.
- ^ "BMW's New B58 3-liter Engine Won't Be a Tuner's Delight". www.autoevolution.com. Retrieved 30 December 2017.
- ^ "Big Changes Under Hood in '16 BMW 3-Series". www.wardsauto.com. Retrieved 30 December 2017.
- ^ "2017 BMW 2 Series Lineup Revealed with New Engines". www.automobilemag.com. Retrieved 30 December 2017.
- ^ Boeriu, Horatiu (11 December 2015). "BMW's B58 engine among Wards' 10 Best engines for 2016". BMWBlog. Retrieved 21 May 2016.
- ^ "How is the B58 engine (340i) improved from the venerable N55? We have answers". www.bimmerfest.com. Retrieved 30 December 2017.
- ^ Sheehan, Sam (16 May 2016). "New bmw m140i m240i and plug 7 series range revealed". autocar.co.uk. Retrieved 22 May 2016.
- ^ BMW (24 September 2017). "BMW G30 5 series specifications". bmw.de. Retrieved 24 September 2017.
- ^ "BMW G01 X3 technical specifications". www.bmw.de. Retrieved 2017-10-12.
{{cite web}}: Unknown parameter|dead-url=ignored (|url-status=suggested) (help) [dead link] - ^ BMW (12 June 2018). "M performance power and sound kit for 340i / 440i". www.bmw.de. Retrieved 12 June 2018.
{{cite web}}: Unknown parameter|dead-url=ignored (|url-status=suggested) (help) [dead link] - ^ BMW (12 June 2018). "M performance power and sound kit for 540i". www.bmw.de. Retrieved 12 June 2018.
{{cite web}}: Unknown parameter|dead-url=ignored (|url-status=suggested) (help) [dead link] - ^ "The all-new BMW X5: The Prestige SAV with the most innovative technologies". www.press.bmwgroup.com. Retrieved 2018-06-12.
- ^ "2020 BMW Z4 M40i Prototype Driven: The Supra's German Brother". Car and Driver. Retrieved 2018-06-12.
- ^ https://www.topgear.com/car-news/geneva-motor-show/morgan-plus-six-comes-supra-power