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BMW M88

The BMW M88 is a straight-6 DOHC piston engine produced from 1978 to 1989. It is based on the M49 engine motorsport, que was used in the BMW 3.0CSi.

Design

BMW engineers used a 4-valve head and a single-row timing chain. Kugelfischer fuel injection was used with single throttle valves and the distinctive six inlet pipes.

Models

Engine
Disp
Power
Torque
Bore
Stroke
Year
Application
M88/1
3,453 cc (211 cu in)
203 kW (272 hp) @ 6500 rpm
330 Nm (243 lbft) @ 5000 rpm
93.4 mm (3.7 in)
84 mm (3.3 in)
1978–1981
M88/2
670 kW (898 hp)
Group 5 racing cars
M88/3
210 kW (282 hp) @ 6500 rpm
340 Nm (251 lbft) @ 4500 rpm
1983–1989
M90
160 kW (215 hp) at 5,200 rpm
304 Nm (224 lbft) at 4,000 rpm
1978–1982

M88/1

The M88/1 was the first iteration of the M88 and was fitted to the BMW M1  Between It produced 277 hp (207 kW) @ 6500rpm and 239 lbft (324 Nm) @ 5500rpm.

M88/2

For Group 5 racing, the M88 engine was turbocharged and Became Known as the M88 / 2. This race engine produced up to 900 hp (670 kW).

M88/3

The M88/1 engine was modified for use in the M635CSi and E28 M5, This engine was Known as the M88/3. The Kugelfisher fuel injection was Replaced with Bosch Motronic and the engine produced 286 hp (213 kW). It has a compression ratio of 10.5:1.
The M88/3 was Also fitted to the South African 745i, due to packaging problems with the turbocharged engine M102 Which was used in other markets.

M90

The M90 engine is a SOHC Engine That lower performance was based on the M88/1. It uses TO the same block from the M88 and Maintains the same bore and stroke, but uses Both Bosch Motronic fuel injection and Bosch L-Jetronic. Typically Identified by a white L painted on the block behind the oil filter housing.

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Last updated on 14 May 2013 at 11:02.

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