The M115 version has a displacement of 1,499 cc (91.5 cu in) and produces 55–60 kW (75–82 PS; 74–80 hp). It has a bore of 82 mm (3.2 in) and a stroke of 71 mm (2.8 in). Lower power models have a compression ratio of 8.0:1, while higher power models have a compressions ratio of 8.8:1. Fuel is supplied via a Solex 38 PDSI carburettor.

BMW M10 Engine utilized Hemispherical combustion chamber in 8 valve arrangement. The engine was initially known as the "M115" (the last two digits representing the 1.5 litre capacity). Over the years, variants of the engine were given various codes (most of them starting with "M1..." and the remaining digits relating to the capacity).

2024年3月11日 · The M10 BMW engine—BMW’s longest-running power plant—made its debut at the 1961 Frankfurt Motor Show alongside the all-new BMW 1500 ‘Neue Klasse’ (New Class) sedan.

2021年11月9日 · The first of the M10 engines was dubbed the M115 — the last 2 digits implying that it was a 1.5L unit. The 1,499cc, inline-four engine was good for 80hp and 87lb-ft of torque and was first mounted onto the BMW 1500 sedan.

The first New Class vehicle was the 1500, a 4-door compact executive car with the new M10 (at the time called M115) OHC 4-cylinder engine. In 1965, the 2000 C and 2000 CS luxury coupés were added to the range. Replacement of the New Class models began with the 6-cylinder E9 2800 CS in 1969 replacing the 2000 C and 2000 CS coupés.

2022年3月10日 · The BMW M10 engine is arguably the most important engine in BMW’s entire catalog. Following WWII, the M10 allowed BMW to climb out of their financial slump by powering the first generation of modern BMW production cars. The M10 is beloved for quite a few reasons, the legendary chassis’ that the 4-cylinder powered is one of them.

2016年3月21日 · 该发动机从宝马早期的航空发动机上获得灵感，采用铝合金缸体，降低了整机重量，是世界上首款用于量产的铝合金V8发动机。 1954年宝马第一台V8发动机. 1960年代，宝马M115四缸发动机出现在BMW 1500轿车上。 该发动机采用铸铁材质，技术成熟，结构紧凑。

2014年9月27日 · The BMW M10 was a straight-4 SOHC piston engine produced from 1962 to 1988 with displacements ranging from 1499 cc to 1990 cc. The engine was very successful, with over 3.5 million produced across many BMW models. It was also used as the basis for the turbocharged BMW M12 motorsport engine which pro..

The initial 1500 was an M115, the 1600 an M116 and the 1800 an M118. They all shared a 100mm spacing between pistons which is larger than the 91mm spacing used on most BMW since. They were advanced engines for their time, in an era where competitors used pushrods the M10 had an overhead cam which made for better high rpm performance.

This page lists the M115 specifications for the engine built by BMW. Where listed, power output figures are based on the most powerful production variant of that engine, because some manufacturers use different engine maps to tune the same engine for better fuel economy, performance or to differentiate models in the range.