2025年3月21日 · The BMW M20B25 is a 2.5 liters (2,494 cc, 152.19 cu-in) straight-six, four-stroke cycle natural aspirated gasoline engine from BMW M20-family. The engine was manufactured on Munich Plant (Munich, Germany) since 1985 to 1991.

The M20B25 has a capacity of 2,494 cc (152.2 cu in) and initially produced 126 kW (171 PS; 169 hp) (without a catalytic converter). [31] It has an upgraded cylinder head (known as "885"), a bore of 84 mm (3.31 in), a stroke of 75 mm (2.95 in), a compression ratio of 9.4:1, a redline of 6,500 rpm and uses Bosch Motronic 1.1 engine management.

2015年2月17日 · BMW M20B25 engine reliability, problems and repair. BMW M20B25 straight 6-cylinder engine was developed on base of low displacement M20B20 motor in 1986. It belongs to BMW M20 family along with M20B23 and M20B27 engines.

2023年11月6日 · The M20B25 engine boasts a power output of approximately 168 horsepower at 5,800 rpm and a torque output of 164 lb-ft (222 Nm) at 4,300 rpm. These figures provide a strong indication of the engine’s ability to deliver power efficiently across a broad rpm range.

2024年12月18日 · The six-cylinder in-line engine M20B25 replaced the B20/23 engines on the assembly line. It was produced for 7 years (1986-93). The cylinder block was made of cast iron. The M20B25 was installed in the E30 325i, E34 525i and Z1 models. The BMW M20B25 motor had an injection system from Bosh Motronic. Oil consumption is 1000 grams per 1000 ...

2022年3月19日 · The BMW M20, especially the M20B25, is a fantastic engine for modification, with many options and routes to follow in order to gain more power. Displacement modifications and cylinder head upgrades are the most effective methods of doing so, however, there are less expensive options, like installing a performance chip, that will improve ...

2024年4月19日 · In-line six-cylinder engine BMW M20B25 (popularly known as “Spider”) was developed on the basis of low-volume six M20B20 in 1986 and together with the base unit and motors M20B23, M20B27, is part of the BMW M20 family. This engine was used on BMW cars with the index 25i.

2025年1月6日 · Explore the BMW M20B25 engine specs, oil requirements, and service intervals for optimal performance and maintenance tips.

2024年4月9日 · M20B25 (1988 – 1991) – modifizierte Version mit einem anderen kurzen Ansaugkrümmer. Verdichtungsverhältnis 8,8, Leistung 170 PS bei 5800 U/min, Drehmoment 222 Nm bei 4300 U/min. Probleme und Nachteile der BMW M20B25 Motoren

The BMW M20B25 is a 2.5 L (2,494 cc, 152.2 cu·in) straight-six, natural aspirated four-stroke gasoline engine, manufactured by BMW from 1985 to 1991. Cylinder bore and piston stroke are 84.0 mm (3.31 in) and 75.0 mm (2.95 in), respectively. The compression ratio rating is 9.7:1, 9.3:1, 8.8:1 depending on the year.