BMW B58

BMW B58
Overview
Manufacturer BMW
Production 2015 – present
Layout
Configuration Straight-six
Displacement 3.0 L (2,998 cc)
Cylinder bore 82.0 mm
Piston stroke 94.6 mm
Valvetrain DOHC
Compression ratio 11:1
Combustion
Turbocharger Single twin-scroll
Fuel system Direct injection
Fuel type Petrol
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 cc (181.8 cu in) to 2,998 cc (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 7000 rpm, the bore is 82 mm (3.2 in) and the stroke is 94.6 mm (3.7 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 identically 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

EnginePowerTorqueYears
B58B30M0240 kW (322 hp)
@ 5,500–6,500 rpm		450 N⋅m (332 lb⋅ft)
@ 1,380–5,000 rpm		2015–
250 kW (335 hp)
@ 5,500 rpm		500 N⋅m (369 lb⋅ft)
@ 1,520–4,500 rpm		2016–
250 kW (335 hp)
@ 5,500–6,500 rpm		450 N⋅m (332 lb⋅ft)
@ 1,380–5,200 rpm		2017–
265 kW (355 hp)
@ 5,500–6,500 rpm		500 N⋅m (369 lb⋅ft)
@ 1,520–4,800 rpm		2016–
B58B30M1 250 kW (335 hp)
@ 5,000–6,500 rpm		 500 N⋅m (369 lb⋅ft)
@ 1,600–4,500 rpm		 2018–
B58B30O1 285 kW (382 hp)
@ 5,000–6,500 rpm

B58B30M0: 240 kW version

Applications:

B58B30M0: 250 kW version

Applications:

B58B30M0: 265 kW version

Applications:

  • 2017-present G01 X3 M40i[13]
  • 2018-present G02 X4 M40i

B58B30M0: 265 kW version

This version was used for cars with the "M Performance Power Pack and Sound Kit".

Applications:

B58B30M1

Applications:

  • 2018-present G05 X5 xDrive40i/sDrive40i[16]
  • 2018-present G29 Z4 M40i (in countries subject to EU emissions standards)[17]

B58B30O1

Applications:

  • 2018-present G29 Z4 M40i (in countries not subject to EU emissions standards)

B58C30O1

Applications:

  • 2019-present J29 Toyota Supra 40i

References

  1. ↑ 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.
  2. ↑ "BMW F30 LCI 340i". www.paultan.org.
  3. ↑ Meiners, Jens (22 April 2011). "BMW's New Three-, Four-, and Six-Cylinder Engine Family Detailed". CARandDriver. Retrieved 21 May 2016.
  4. ↑ "BMW F97 X3 M launching in 2019 with new S58 engine and 450 horsepower". www.bmwblog.com. Retrieved 28 December 2017.
  5. ↑ "BMW Developing S58 Engine as S55 Successor, Will Debut in 2019 X3 M". www.autoevolution.com. Retrieved 28 December 2017.
  6. ↑ "BMW's New B58 3-liter Engine Won't Be a Tuner's Delight". www.autoevolution.com. Retrieved 30 December 2017.
  7. ↑ "Big Changes Under Hood in '16 BMW 3-Series". www.wardsauto.com. Retrieved 30 December 2017.
  8. ↑ "2017 BMW 2 Series Lineup Revealed with New Engines". www.automobilemag.com. Retrieved 30 December 2017.
  9. ↑ Boeriu, Horatiu (11 December 2015). "BMW's B58 engine among Wards' 10 Best engines for 2016". BMWBlog. Retrieved 21 May 2016.
  10. ↑ "How is the B58 engine (340i) improved from the venerable N55? We have answers". www.bimmerfest.com. Retrieved 30 December 2017.
  11. ↑ Sheehan, Sam (16 May 2016). "New bmw m140i m240i and plug 7 series range revealed". autocar.co.uk. Retrieved 22 May 2016.
  12. ↑ BMW (24 September 2017). "BMW G30 5 series specifications". bmw.de. Retrieved 24 September 2017.
  13. ↑ "BMW G01 X3 technical specifications". www.bmw.de. Retrieved 2017-10-12.
  14. ↑ BMW (12 June 2018). "M performance power and sound kit for 340i / 440i". www.bmw.de. Retrieved 12 June 2018.
  15. ↑ BMW (12 June 2018). "M performance power and sound kit for 540i". www.bmw.de. Retrieved 12 June 2018.
  16. ↑ "The all-new BMW X5: The Prestige SAV with the most innovative technologies". www.press.bmwgroup.com. Retrieved 2018-06-12.
  17. ↑ "2020 BMW Z4 M40i Prototype Driven: The Supra's German Brother". Car and Driver. Retrieved 2018-06-12.
« previous — BMW automotive petrol engines: 2000s to 2010s
- List
2000s 2010s
0123456789 01234567
straight-3
turbo		 B38>>
straight-4 <<M43N40 / N42N45 / N46N43
<<M44
straight-4
turbo		 N13
N20 / N26B48>>
straight-6 M54 / M56N52N53
S54
straight-6
turbo		 N54N55B58 >>
S55>>
V8 M62N62
S62S65
V8 turbo N63>>
S63>>
V10 S85
V12 <<M73N73
V12 turbo N74>>
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.