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BMW B58

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The BMW B58 is a turbocharged straight-six engine , which began production in 2015. The B58 replaced the N55 and was launched in the F30 340i.

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16-461: 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 the B38 and B48 engine. The B58 engine was named to Ward's World's 10 Best Engines four times, in 2016 (installed in the 340i ), 2017 ( M240i ), 2019 ( X5 ) and 2020( M340i ). The S58 engine, which was released in early 2019, is the high-performance version of

32-498: A forged chrome molybdenum heat-treated steel crankshaft, plus forged steel connecting rods and forged aluminum pistons. The pistons are forged by Mahle and feature their proprietary anti-friction coating. Like the B58, the S58 also features direct fuel injection, variable valve timing (called double Vanos by BMW), and variable valve lift (called Valvetronic by BMW). As opposed to the B58,

48-600: Is a twin-scroll design, 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. 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. As per the N55, the B58 also features direct fuel injection, variable valve timing (called double Vanos by BMW), and variable valve lift (called Valvetronic by BMW). The redline remains at 7,000 rpm,

64-484: Is a variable valve timing system used by BMW on various automotive petrol engines since 1992. The name is an abbreviation of the German words for variable camshaft timing ( German : va riable No ckenwellen s teuerung ). The initial version (retrospectively renamed "single VANOS") was solely used on the intake camshaft, while the later "double VANOS" systems are used on intake and exhaust camshafts. Since 2001, VANOS

80-502: Is often used in conjunction with the Valvetronic variable valve lift system. VANOS is a variator system that varies the timing of the valves by moving the position and the camshafts in relation to the drive gear. The relative timing between inlet and exhaust valves is changed. At lower engine speeds, the position of the camshaft is moved so the valves are opened later, as this improves idling quality and smooth power development. As

96-499: Is the high-performance version of the B58 engine. It was introduced in the F97 X3 M and F98 X4 M , marking the first time a stand-alone M model was produced for the X3 and X4. The S58 features twin mono-scroll turbochargers, a compression ratio of 9.3:1, a redline at 7,200 rpm with the bore and the stroke at 84 mm × 90 mm (3.31 in × 3.54 in). It also features

112-455: The B57 diesel version, 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

128-676: The BMW B37 , due to their same size/configuration. 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, where it is used as a transverse mid-mounted engine. The B38 features direct injection , an 11:1 compression ratio , variable valve timing (double-VANOS) and

144-434: 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. For durability and longevity, the rotating assembly has a forged steel crankshaft and forged connecting rods. As a part of BMW's new modular engine family, the crankcase is a completely new design identical to

160-412: The straight-four BMW N13 . Production started in 2013. It is part of a modular BMW engine family, of straight-three (B38), straight-four ( B48 ) and straight-six ( B58 ) alloy block and head petrol engines, which use a displacement of 400 cc (24.4 cu in) per cylinder in the 1.2 and 500 cc (30.5 cu in) per cylinder in the 1.5. It specifically shares a lot of components with

176-474: The B58. It was named to Ward's World's 10 Best Engines in 2023 (installed in the M2 ). 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) with added weight of 8 kg (18 lb). The turbocharger

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192-436: 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. Applications: Applications: Applications: Applications: BMW B38 The BMW B38 is a 1.2 and 1.5 L (1,198 and 1,499 cc) turbocharged straight-three DOHC petrol engine , which replaced

208-409: The cylinder head housing. Another engine revision in 2022 added port fuel injection to complement the existing direct injection system for better emissions and functionality. Applications: Applications: Applications: This version was used for 3-/4-Series with the "M Performance Power and Sound Kit". Applications: Applications: Applications: Applications: Applications: The S58 engine

224-406: The engine speed increases, the valves are opened earlier: this enhances torque, reduces fuel consumption and lowers emissions. At high engine speeds, the valves are opened later again, because this allows full power delivery. The first-generation single VANOS system adjusts the timing of the intake camshaft to one of two positions — e.g. the camshaft is advanced at certain engine speeds . VANOS

240-747: The single-scroll turbocharger with the world's first aluminium turbine housing, manufactured by Continental . On the 1.2   Liter versions, the bore is 78 mm (3.1 in) and the stroke is 83.6 mm (3.3 in). On the 1.5   Liter versions, the bore is 82 mm (3.2 in) and the stroke is 94.6 mm (3.7 in). (improvement of B38A15M0) at 4,400–6,000 rpm at 1,250–4,300 rpm Applications: 55 kW (74 hp) version: 75 kW (101 hp) version: Applications: 75 kW (101 hp) version: 80 kW (107 hp) version: 100 kW (134 hp) version (104kW (141bhp) for post-2018 manufacture) Applications: Applications: VANOS#double vanos VANOS

256-411: 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

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