BMW M10

Last updated
BMW M10 engine
BMW Engine M10.JPG
Overview
Production1962–1988
Layout
Configuration Inline-4
Displacement
  • 1.5 L (1,499 cc)
  • 1.6 L (1,573 cc)
  • 1.8 L (1,766 cc)
  • 1.8 L (1,773 cc)
  • 2.0 L (1,990 cc)
Cylinder bore 82 mm (3.23 in)
84 mm (3.31 in)
89 mm (3.5 in)
Piston stroke 71 mm (2.8 in)
80 mm (3.15 in)
Cylinder block materialCast iron
Cylinder head materialAluminium
Valvetrain SOHC
Combustion
Fuel system Solex carburetor
Stromberg carburettor
Kugelfischer mechanical FI Bosch L JetTronic fuel injection
Fuel type Petrol
Chronology
PredecessorNone
Successor BMW M40

The BMW M10 is a SOHC inline-4 petrol engine which was produced by BMW from 1962-1988. It was the company's first four-cylinder engine since the BMW 309 ended production in 1936 and was introduced in the New Class sedans.

Contents

The M10 was used in many BMW models, with over 3.5 million being produced during its 26 year production run. [1]

The turbocharged BMW M12 engine— used in the Formula One racing— was based on the M10 engine block and produced up to 1,400 PS (1,030 kW) in qualifying trim.[ citation needed ]

Following the introduction of the BMW M40 engine in 1987, the M10 began to be phased out.

Development

Baron Alex von Falkenhausen— an engineer and racing driver— designed the M10 . [1] In the late 1950s, he was asked to design an engine with a displacement of 1.3 L (79 cu in), however he felt that this would be insufficient for the company's future needs. Therefore, he convinced BMW that the capacity should be 1.5 L (92 cu in) instead and he designed a block that could be expanded to 2.0 L (122 cu in) in the future.

Design

The M10 has a cast iron block and an aluminum alloy head with hemispherical combustion chambers and two valves per cylinder. [2] It features a forged crankshaft, counterbalance weights, five main bearings and a chain-driven camshaft. [3]

The initial version of the M10 had a bore of 82 mm (3.2 in) and a stroke of 71 mm (2.8 in), resulting in a displacement of 1,499 cc (91.5 cu in). The peak power rating was 59 kW (80 PS; 79 hp). [4] [5]

Naming conventions

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). In 1975, the engine became known as then "M10", then in 1980 it was given the standardised BMW engine code of M10B18 (where "M10" represents the series, B represents petrol (Benzin in German) and the "18" represented its then 1.8–litre capacity).

The M115 and all related engines have become retroactively known as the "M10" family.

Versions

VersionDisplacementPowerTorqueYear
M1151,499 cc (91.5 cu in)55 kW (75 PS; 74 hp)
at 5800 rpm		118 N⋅m (87 lb⋅ft)
at 3700 rpm		1974–1977
59 kW (80 PS; 79 hp)
at 5700 rpm		118 N⋅m (87 lb⋅ft)
at 3000 rpm		1962-1964
M1161,573 cc (96.0 cu in)63 kW (85 PS; 84 hp)
at 5800 rpm		130 N⋅m (96 lb⋅ft)
at 3500 rpm		1964–1975
77 kW (105 PS; 103 hp)
at 6000 rpm		141 N⋅m (104 lb⋅ft)
at 4500 rpm		1967–1968
M4166 kW (90 PS; 89 hp)
at 6000 rpm		167 N⋅m (123 lb⋅ft)
at 4000 rpm		1975-1980
M9855 kW (75 PS; 74 hp)
at 5800 rpm		110 N⋅m (81 lb⋅ft)
at 3200 rpm		1981-1983
M10B181,766 cc (107.8 cu in)74 kW (100 PS; 99 hp)
at 5800 rpm		135 N⋅m (100 lb⋅ft)
at 3500 rpm		1980-1983
77 kW (105 PS; 103 hp)
at 5800 rpm
75 kW (102 PS; 101 hp)		145 N⋅m (107 lb⋅ft)
at 4500 rpm
135 N⋅m (100 lb⋅ft)		1980–1988

S/CH [6]
M1181,773 cc (108.2 cu in)66 kW (90 PS; 89 hp)
at 5,250 rpm		144 N⋅m (106 lb⋅ft)
at 3000 rpm		1963–1974
81 kW (110 PS; 108 hp)
at 5800 rpm		148 N⋅m (109 lb⋅ft)
at 4000 rpm		1964–1976
96 kW (130 PS; 128 hp)
at 6100 rpm		157 N⋅m (116 lb⋅ft)
at 5100 rpm		1964-1965
M051,990 cc (121.4 cu in)74 kW (100 PS; 99 hp)
at 5500 rpm		157 N⋅m (116 lb⋅ft)
at 3000 rpm		1968–1976
88 kW (120 PS; 118 hp)
at 5600 rpm		167 N⋅m (123 lb⋅ft)
at 3500 rpm		1965–1971
M1785 kW (115 PS; 113 hp)
at 5800 rpm		165 N⋅m (122 lb⋅ft)
at 3700 rpm		1972-1977
M1596 kW (130 PS; 128 hp)
at 5800 rpm		177 N⋅m (131 lb⋅ft)
at 4500 rpm		1970–1974
M4380 kW (109 PS; 107 hp)
at 5800 rpm		160 N⋅m (118 lb⋅ft)
at 3700 rpm		1975-1983
M6492 kW (125 PS; 123 hp)
at 5700 rpm		175 N⋅m (129 lb⋅ft)
at 4350 rpm		1975-1979
M10B2081 kW (110 PS; 109 hp)
at 5700 rpm		152 N⋅m (112 lb⋅ft)
at 4350 rpm		1977-1979
M311,990 cc (121.4 cu in)
turbo 		125 kW (170 PS; 168 hp)
at 5800 rpm		245 N⋅m (181 lb⋅ft)
at 4000 rpm		1973-1975

1499 cc engines

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.

Applications: [7] [8]

1573 cc engines

The M116 version has a displacement of 1,573 cc (96.0 cu in) and produces 63–77 kW (86–105 PS; 84–103 hp). It has a bore of 84 mm (3.3 in) and a stroke of 71 mm (2.8 in). The standard specification has a compression ratio of 8.6:1 and uses a Solex 38 PDSI carburettor. The 1600 ti version has a compression ratio of 9.5:1 and uses twin Solex 40 PHH carburettors.

Applications:

The M41 version produces 66 kW (90 PS; 89 hp), has an 8.3:1 compression ratio and fuel is supplied by a Solex 32 DIDTA carburettor.

Applications:

The M98 version produces 55 kW (75 PS; 74 hp), has a compression ratio of 9.5:1 and uses a Pierburg 1B2 carburettor.

Applications: [9]

1766 cc engines

The M10B18 version produces 66–77 kW (90–105 PS; 89–104 hp), depending on specification. The bore is 89 mm (3.5 in) and the stroke is 71 mm (2.8 in).

Applications:

1773 cc engines

The M118 version has a displacement of 1,773 cc (108.2 cu in) and produces 66–96 kW (90–130 PS; 89–128 hp), [10] depending on specification. The bore is 84 mm (3.3 in) and the stroke is 80 mm (3.1 in).

Applications: [11]

1990 cc engines

The M05 version has a displacement of 1,990 cc (121.4 cu in) and produces 74–88 kW (100–120 PS; 99–118 hp), depending on specification. It has a bore of 89 mm (3.5 in) and a stroke of 80 mm (3.1 in).

Applications:

The M15 version used the Kugelfischer mechanical fuel injection and produced 96 kW (130 PS; 128 hp). It was also known as the tii engine.

Applications:

The M17 version produces 85 kW (115 PS). It has compression ratio of 9.0:1 and uses either a Stromberg 175 CDET or a Solex 4A1 carburettor.[ citation needed ]

Applications:

The M43/1 version has a compression ratio of 8.1:1 and produces 81 kW (110 PS; 109 hp).

Applications:

The M64 version produces 92 kW (125 PS). It has a compression ratio of 9.3:1 and uses Bosch K-Jetronic mechanical fuel injection.

Applications:

The M31 version uses a KKK BLD turbocharger operating @ 7psi and produces 125 kW (170 PS). It has a compression ratio of 6.9:1 and uses Schafer PL 04 mechanical fuel injection.

Applications:

See also

Related Research Articles

<span class="mw-page-title-main">BMW M30</span> Reciprocating internal combustion engine

The BMW M30 is a SOHC straight-six petrol engine which was produced from 1968 to 1995. With a production run of 27 years, it is BMW's longest produced engine and was used in many car models.

<span class="mw-page-title-main">Jaguar XK engine</span> Reciprocating internal combustion engine

The Jaguar XK is an inline 6-cylinder dual overhead camshaft (DOHC) engine produced by Jaguar Cars between 1949 and 1992. Introduced as a 3.4-litre, it earned fame on both the road and track, being produced in five displacements between 2.4 and 4.2-litres for Jaguar passenger cars, with other sizes being made by Jaguar and privateers for racing. A de-rated version was also used in certain military vehicles built by Alvis and Daimler.

<span class="mw-page-title-main">BMW M20</span> Reciprocating internal combustion engine

The BMW M20 is a SOHC straight-six petrol engine which was produced from 1977 to 1993. It was introduced eight years after the larger BMW M30 straight-six engine, which remained in production alongside the M20.

<span class="mw-page-title-main">BMW M40</span> Reciprocating internal combustion engine

The BMW M40 is an SOHC straight-four petrol engine which was produced from 1987–1994. It served as BMW's base model four-cylinder engine and was produced alongside the higher performance BMW M42 DOHC four-cylinder engine from 1989 onwards.

<span class="mw-page-title-main">BMW S14</span> Reciprocating internal combustion engine

The BMW S14 is a DOHC four-cylinder petrol engine which was used in the E30 M3, E30 320iS, and E36 318i Super Touring. It is based on the BMW M10 block and the cylinder head from the six-cylinder BMW S38 with two cylinders removed. The direct successor to the S14 was the S42 based on the M42 engine. The S42 was a racing engine installed in the E36 320i for the German Super Tourenwagen Cup. There is no direct successor to the S14 for production BMWs, since the following generation of M3 is powered by the BMW S50 six-cylinder engine.

<span class="mw-page-title-main">BMW M88</span> Reciprocating internal combustion engine

The BMW M88 is a straight-6 DOHC petrol engine which was produced from 1978 to 1989. It is based on the DOHC version of the BMW M49 engine, which was used in the BMW 3.0CSi racing cars.

<span class="mw-page-title-main">BMW 5 Series (E12)</span> Motor vehicle

The BMW E12 is the first generation of 5 Series executive cars, which was produced from 1972 to 1981 and replaced the saloon models of the BMW New Class range.

<span class="mw-page-title-main">BMW 3 Series (E21)</span> Motor vehicle

The BMW E21 is the first generation of the BMW 3 Series compact executive cars, which were produced from June 1975 to December 1983 and replaced the BMW 02 Series. The series was exclusively built in a two-door sedan body style. Contrary to its predecessor, a 'Touring' body with a sloped rear hatch was no longer offered.

<span class="mw-page-title-main">BMW 3 Series (E30)</span> Motor vehicle

The BMW E30 is the second generation of BMW 3 Series, which was produced from 1982 to 1994 and replaced the E21 3 Series. The model range included 2-door coupe and convertible body styles, as well as being the first 3 Series to be produced in 4-door sedan and wagon/estate body styles. It was powered by four-cylinder petrol, six-cylinder petrol and six-cylinder diesel engines, the latter a first for the 3 Series. The E30 325iX model was the first BMW to have all-wheel drive.

<span class="mw-page-title-main">Mazda E engine</span> Reciprocating internal combustion engine

The iron-block, alloy head E family was an evolution of Mazda's xC design. It was released in June 1980 with the introduction of the first front-wheel drive Mazda Familias and Ford Lasers. Some later variants of the E5-powered Mazda Familia and Ford Laser in Japan incorporated a full-time 4WD drivetrain. All E engines were chain-driven, 8-valve SOHC. Notable features include siamesed cylinders, aluminium rocker arms and pistons, thin block walls, and single valve springs - all in the interest of reducing weight.

<span class="mw-page-title-main">BMW New Class</span> Motor vehicle

The BMW New Class was a line of sedans and coupes produced by German automaker BMW between 1962 and 1972. These models ensured BMW's solvency after the company's financial crisis of the 1950s and established the identity of BMW automobiles as sports sedans.

<span class="mw-page-title-main">Nissan L engine</span> Reciprocating internal combustion engine

The Nissan L series of automobile engines was produced from 1966 through 1986 in both inline-four and inline-six configurations ranging from 1.3 L to 2.8 L. It is a two-valves per cylinder SOHC non-crossflow engine, with an iron block and an aluminium head. It was the engine of the Datsun 510, Datsun 240Z sports car, and the Nissan Maxima. These engines are known for their reliability, durability, and parts interchangeability.

<span class="mw-page-title-main">Mercedes-Benz M110 engine</span> Reciprocating internal combustion engine

The M110 engine family is a DOHC crossflow cylinder head design with 2 valves per cylinder straight-6 automobile engine made by Mercedes-Benz in the 1970s and 1980s.

<span class="mw-page-title-main">Alfa Romeo V6 engine</span> Reciprocating internal combustion engine

The Alfa Romeo V6 engine is a 60° V6 engine made by Alfa Romeo from 1979 to 2005. It was developed in the early 1970s by Giuseppe Busso, and first used on the Alfa 6 with a displacement of 2.5 L (2,492 cc) and a SOHC 12-valve cylinder head. Later versions ranged from 1,996 to 3,179 cc and had DOHC 24-valve valvetrains. The original design had short pushrods for the exhaust valves in a design similar to earlier Lancia Fulvia engines. The first DOHC version was in the 1993 Alfa Romeo 164, with an aluminium alloy engine block and head with sodium filled exhaust valves.

<span class="mw-page-title-main">Volkswagen EA827 engine</span> Family of petrol engines

The EA827 family of petrol engines was initially developed by Audi under Ludwig Kraus leadership and introduced in 1972 by the B1-series Audi 80, and went on to power many Volkswagen Group models. This is a very robust water-cooled engine configuration for four- up to eight- cylinders. In Brazil this engine was produced under the name Volkswagen AP AP.

<span class="mw-page-title-main">BMW OHV V8 engine</span> Reciprocating internal combustion engine

The BMW OHV V8 is an overhead valve V8 petrol engine produced from 1954 to 1965. It is BMW's first V8 engine, and BMW did not produce another V8 automobile engine until the BMW M60 in 1992.

<span class="mw-page-title-main">BMW M78</span> Reciprocating internal combustion engine

The BMW M78 is a petrol overhead valve straight-six engine which was produced from 1933 to 1950. It is the first straight-6 automobile engine produced by BMW, an engine layout which has been a key feature of the brand for many years since.

<span class="mw-page-title-main">Opel cam-in-head engine</span> Reciprocating internal combustion engine

The Opel cam-in-head engine (CIH) is a family of automobile engines built by former General Motors subsidiary Opel from 1965 until 1998, appearing extensively in Opel/Vauxhall badged cars during this period. Both four- and six-cylinder inline configurations were produced. The name derives from the location of the camshaft, which was neither cam-in-block nor a true overhead camshaft. In the CIH engine the camshaft is located in the cylinder head but sits alongside the valves rather than above them, so therefore effectively is still an overhead valve design. The valves are actuated through very short tappets and rocker arms. The engine first appeared in the Opel Rekord B in 1965, and was largely replaced in four-cylinder form by the GM Family II unit as Opel/Vauxhall's core mid-size engine in the 1980s, with the six-cylinder versions continuing until 1994 in the Omega A and Senator B. A large capacity 2.4L four-cylinder version continued until 1998.

<span class="mw-page-title-main">BMW 02 Series</span> Motor vehicle

The BMW 02 Series is a range of sporty compact executive cars produced by German automaker BMW between 1966 and 1977, based on a shortened version of the New Class Sedans.

References

  1. 1 2 "BMW World - M10 Engine". www.usautoparts.net. Archived from the original on 21 April 2012.
  2. ↑ "M10 - E30 Zone Wiki". www.e30zone.net. Archived from the original on 2 January 2018. Retrieved 28 January 2017.
  3. ↑ "BMW M10 Four Cylinder Engines". www.unixnerd.demon.co.uk. Archived from the original on 22 May 2019. Retrieved 25 January 2017.
  4. ↑ Zal, Pawel (ed.). 1963 BMW 1500 (for Europe North America ) specs review. ISBN   978-83-931772-0-2.{{cite book}}: |work= ignored (help)
  5. ↑ Andrew Everett (1 May 2016). "The inner working of the long lived BMW M-10 Engine" . Retrieved 16 December 2022.
  6. ↑ Hogsten, Dag E. (1982-10-06). "Prestige till varje pris" [Prestige at any cost]. Teknikens Värld (in Swedish). Vol. 34, no. 21. Stockholm, Sweden: Specialtidningsförlaget AB. p. 26.
  7. ↑ "1975 BMW Type 114 1502 Specs". www.ultimatespecs.com. Retrieved 23 January 2017.
  8. ↑ "1961 BMW New Class 1500 Specs". www.ultimatespecs.com. Retrieved 23 January 2017.
  9. ↑ "1981 BMW E21 3 Series 315 Specs". www.ultimatespecs.com. Retrieved 23 January 2017.
  10. ↑ "1962 BMW 1800 specifications, information, data, photos". www.carfolio.com. Retrieved 24 January 2017.
  11. ↑ "BMW M99 Automobilmotor". BMW Group Archiv (in German). Retrieved 30 November 2018.
  12. ↑ "3 Series – E30". BMW History. Archived from the original on 2012-03-07. Retrieved 2012-11-07.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.