BMW B58
| BMW B58 | |
|---|---|
 B58B30O1 in a G22 M440i | |
| 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 blockmaterial | Closed-deck aluminium |
| Cylinder headmaterial | Aluminum |
| Valvetrain | DOHC4 valves x cyl.withValvetronicandDouble VANOS |
| Valvetrain drive system | Chain |
| Compression ratio | 11.0:1 |
| RPM range | |
| Max. engine speed | 7,000 rpm |
| Combustion | |
| Supercharger | 48V electrical systems Starter Generator (2020; some models) |
| Turbocharger | Singletwin-scroll turbochargerwith air-to-liquidintercooler |
| Fuelsystem | Direct injection |
| Management | BoschDi-Motronic |
| Fuel type | Petrol |
| Oil system | Wet sumpwith waterheat exchanger |
| Cooling system | Water-cooled |
| Output | |
| Power output | 240–285 kW (322–382 hp) |
| Torque output | 450–500 N⋅m (332–369 lb⋅ft) |
| Dimensions | |
| Dry weight | 139 kg (306 lb) |
| Chronology | |
| Predecessor | BMW N55 |
TheBMWB58is aturbochargedstraight-six engine,which began production in 2015.[1]The B58 replaced theN55and was launched in theF30340i.[2]
The B58 is part of BMW's modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following theB38andB48engine.[3]
The B58 engine was named toWard'sWorld's 10 Best Enginesfour times, in 2016 (installed in the340i),[4]2017 (M240i),[5]2019 (X5)[6]and 2020(M340i).[7]
The S58 engine, which was released in early 2019, is the high-performance version of the B58.[8][9]It was named to Ward's World's 10 Best Engines in 2023 (installed in theM2).[10]
Design[edit]
Compared with itsBMW N55predecessor, the B58 features a 20% increase in boost pressure, a closed-deckengine blockdesign, an increase incompression ratioto 11.0:1 and a slight increase indisplacementfrom 2,979 to 2,998 cc (181.8 to 182.9 cu in) with added weight of 8 kg (18 lb).
Theturbochargeris atwin-scrolldesign, for more efficient power delivery with less turbo lag and more power than a conventional single turbocharger, as well as for weight and space saving benefits.[11]Theintercooler- a water-to-air design - is integrated into the intake plenum, to reduce the volume of air between the turbocharger and the cylinders.[12][13]
As per the N55, the B58 also features direct fuel injection,variable valve timing(calleddouble Vanosby BMW), andvariable valve lift(calledValvetronicby BMW).[14][15]The redline remains at 7,000 rpm, theboreand thestrokeis 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.[16]
For durability and longevity, the rotating assembly has a forged steel crankshaft and forged connecting rods.[17][18]
As a part of BMW's new modular engine family, thecrankcaseis a completely new design identical to theB57diesel version,[19]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.
The engine was revised in 2018, dubbed "B58TU", with notable changes and improvements. The fuel system was updated with 75% increased pressure with updated high pressure fuel pump and injectors, a new particulate filter in the catalytic converter, a new one-part timing chain as opposed to the earlier two-part, and new separate cooling circuits for the cylinder head and crankcase. For weight savings, the crankcase wall thickness and forged crankshaft were optimized, and the exhaust manifold was integrated into the cylinder head housing.[20]
Another engine revision in 2022 added port fuel injection to complement the existing direct injection system for better emissions and functionality.[21]
Models[edit]
| Engine | Power | Torque | Years |
|---|---|---|---|
| B58B30M0 | 213 kW (286 hp) at 5,000-6,500 rpm |
400 N⋅m (295 lb⋅ft) | 2022–present |
| 240 kW (322 hp) at 5,500–6,500 rpm |
450 N⋅m (332 lb⋅ft) at 1,380–5,000 rpm |
2015–2019 | |
| 250 kW (335 hp) at 5,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,520–4,500 rpm |
2016–2021 | |
| 250 kW (335 hp) at 5,500-6,500 rpm |
450 N⋅m (332 lb⋅ft) at 1,380–5,200 rpm |
2017–2019 | |
| B58B30M1 | 265 kW (355 hp) at 5,500–6,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,520–4,800 rpm |
2016–2019 |
| B58B30C | 250 kW (335 hp) at 5,000–6,500 rpm |
500 N⋅m (369 lb⋅ft) at 1,600–4,500 rpm |
2018– |
| B58B30O1 | 285 kW (382 hp) at 5,000–6,500 rpm | ||
| B58B30M2 | 280 kW (375 hp) at 5,200-6,250 rpm |
520 N⋅m (384 lb⋅ft) at 1850-5000 rpm |
2022- |
| S58B30T0 | 338 kW (453 hp) at 6,250 rpm |
550 N⋅m (406 lb⋅ft) at 2,600–5,950 rpm |
2023– |
| 353 kW (473 hp) at 6,250 rpm |
2020– | ||
| 620 N⋅m (457 lb⋅ft) at 2,600–5,950 rpm |
2019– | ||
| 375 kW (503 hp) at 6,250 rpm |
650 N⋅m (479 lb⋅ft) at 2,600–5,950 rpm |
B58B30M0: 213 kW (286 HP) version[edit]
Applications:
B58B30M0: 240 kW (322 HP) version[edit]
Applications:
- 2015–2019F30/F31/F34340i
- 2016–2019F32/F33/F36440i
- 2016–2019G11/G12740i/Li
B58B30M0: 250 kW (335 HP) version[edit]
Applications:
B58B30M0: 265 kW (355 HP) version[edit]
This version was used for 3-/4-Series with the "M Performance Power and Sound Kit".
Applications:
- 2016–2019F30/F31/F34340i[25]
- 2016–2019F32/F33/F36440i
- 2017–2019G01X3 M40i[26]
- 2018–2019G02X4 M40i
B58B30M1: 250 kW (335 HP)[edit]
Applications:
- 2018–2023G05X5 xDrive40i/sDrive40i[27]
- 2018–2023G07X7 xDrive40i
- 2018–presentG29Z4 M40i (in countries subject to EU emissions standards)[28]
- 2019–presentToyota GR Supra
- 2020–2023G30/G31540i
- 2020–2023G32640i
- 2020–2023G06X6 xDrive40i
- 2020–2022G11/G12740i
- 2019–presentG14/G15/G16840i
- 2019–presentMorgan Plus Six[29]
B58B30C: 250 kW (335 HP)[edit]
- 2020J29/DBToyota Supra[30]
- 2022–presentIneos Grenadier(detuned to 286 hp)
B58B30O1: 285 kW (382 HP)[edit]
Applications:
- 2018–presentG29Z4 M40i (in countries not subject to EU emissions standards)
- 2019–presentG20/G21M340i
- 2020–presentG01X3 M40i
- 2019–presentG02X4 M40i
- 2020–presentG22/G23/G26M440i
- 2021–presentToyota Supra[31](in countries not subject to EU emissions standards)
- 2021–presentG42M240i
- 2021–presentBoldmen CR4
B58B30M2: 280 kW (375 HP)[edit]
- 2022–presentG07X7 xDrive40i
- 2023–presentG70740i
- 2024–presentG05X5 xDrive40i
- 2024–presentG06X6 xDrive40i
- 2024–presentG60540i xDrive
- 2025-presentG20/G21M340i
S58[edit]
| BMW S58 engine | |
|---|---|
 | |
| Overview | |
| Production | 2019–present |
| Layout | |
| Configuration | Straight-six |
| Displacement | 3.0 L (2,993 cc) |
| Cylinder bore | 84mm(3.3in) |
| Piston stroke | 90mm(3.5in) |
| Cylinder blockmaterial | Closed-deck aluminum |
| Cylinder headmaterial | Aluminum |
| Valvetrain | DOHCw/VVT&VVL |
| Compression ratio | 9.3:1 |
| RPM range | |
| Max. engine speed | 7,200 RPM |
| Combustion | |
| Turbocharger | Twin-Turbowith air-to-liquid intercooler |
| Fuelsystem | Direct injection |
| Fuel type | Petrol |
| Output | |
| Power output | 338–417.59kW(453–560hp) |
| Torque output | 550–650 N⋅m (406–479 lb⋅ft) |
| Chronology | |
| Predecessor | BMW S55 |
The S58 engine is the high-performance version of the B58 engine. It was introduced in theF97 X3 MandF98 X4 M,marking the first time a stand-alone M model was produced for the X3 and X4.[32]
The S58 features twin mono-scroll turbochargers, a compression ratio of 9.3:1, a redline at 7,200 rpm with theboreand thestrokeat 84 mm × 90 mm (3.31 in × 3.54 in). It also features a forged chrome molybdenum heat-treated steel crankshaft, plus forged steel connecting rods and forged aluminum pistons. The pistons are forged byMahleand feature their proprietary anti-friction coating.[33]
Like the B58, the S58 also features direct fuel injection,variable valve timing(calleddouble Vanosby BMW), andvariable valve lift(calledValvetronicby BMW).
As opposed to the B58, the S58 features a slightly smaller displacement, increased bore, decreased stroke, and larger valves. Compression is decreased to 9.3:1 from 11.0:1. The S58 favors top-end power and has a higher redline of 7,200 RPM.[33]
S58B30T0: 338 kW (460 HP)[edit]
- 2023–presentG87M2
S58B30T0: 344 kW (461 HP)[edit]
- 2019–2022G20Alpina B3
S58B30T0: 353 kW (473 HP)[edit]
Applications:
S58B30T0: 364 kW (488 HP)[edit]
S58B30T0: 375 kW (510 HP)[edit]
Applications:
- 2019–presentF97X3 M Competition
- 2019–presentF98X4 M Competition
- 2021–presentG80M3 Competition
- 2021–presentG82M4 Competition
- 2022–presentG81M3 Competition Touring
S58B30T0: 405 kW (550 HP)[edit]
Applications:
S58B30T0: 412 kW (560 HP)[edit]
Applications:
- 2023G82BMW 3.0 CSL
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