BMW M70

The BMW M70 is a V12 petrol engine of the car manufacturer BMW and in 1987 became the first German post-war twelve-cylinder engine. He came in 750i/750iL BMW E32 and the BMW E31 850i/Ci used.

The engine was developed from scratch. It is a 12 - cylinder V- alloy engine with one overhead 7- mounted camshaft per cylinder bank, which are driven by a chain. The crankshaft is supported 7 times and has 12 counterweights. Two digital motor electronics regelen for each cylinder bank separately mixture preparation; this electronic engine output control is called at BMW EML. In principle, there are two six-cylinder engines, which share little more than the crankshaft and the return of the fuel in the tank, almost all other components are present twice: Fuel pump with flow, fuel pressure regulator, fuel injection system with control devices, as well as the exhaust system, each with a separate strand, each with a catalytic converter and lambda control independent of each other. The redundancy goes so far that even a bank of the engine, regardless of the other, can go into emergency mode.

Alpina built based on the M70 its own motor, the D1 / 1 and on the basis of the S70 D2, which found, among other things used in B12 Coupé.

Data

Use

M70

S70

S70 / 2 & S70 / 3

D1 / 1

D2

Pictures of BMW M70

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