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Video Engine Data



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BMW 7er












BMW 7er
Engine
Displacement, bore*stroke
Compression ratio
Valves
Torque
Power
Drivetrain designFront engine, rear drive
Wheelbase2.833 / 2947 mm
Brakes f/rDiscs, ventilated
Wheels f/r205/65 R 15 V (6,5")
225/60 ZR 15 (7")
Length4.910 / 5024mm
Width1.845 mm
Height1.411 mm
Tank capacity90 liter, 102 liter (740, 750)
Payload520 kg
Kerb weight1.600 - 2380 kg + driver
Maximum speed
Years of manufacture1986 - 1994

This is a car to drive, not to chauffeur. All has to commend it, especially the new engines. Only the smallest is a in-line six-cylinder. Directly competes an eight cylinder with the same displacement, which is of course available as a 4 liters, too. After all, even for the smallest engine the long version is deliverable. And then of course the twelve-cylinder , which comes after the first year in the selection. So yet another piece of six-cylinder technology on top.

The two eight-cylinder are four-valves engines. The twelve-cylinder has no employed cylinder liners. The silicon from the alloy is bared to the pistons. A small sensation in the eight-cylinder are the connecting rods from sintered metal, in the automotive engineering for the first time broken to the bearing cap. Interesting is also the double-walled exhaust manifolds, which helps to heat up the catalytic converter more quickly.

Otherwise, the usual upper-class electronics of the time. These include the optional variable damping hardness and the stability control, which do not only brake single driving wheels, but also can reduce engine performance. Without the latter mechanism it is for example possible, the twelve-cylinder, even on normal ground by driveaway to rotate by heavy gas and not to move the steering wheel.

Interesting here also without CAN-bus a little network between automatic transmission and engine, to make the switching softer by taking back the ignition. There is four-channel ABS, but ESP not yet. A glance at the dashboard reveals, that this 7-series is still quite key- and rotary knob oriented. After all, you have a two-zone air conditioning, while for the security 'only' two airbags are available.

Surprisingly is offered by this time a park distance control, which the smaller vehicles will have much later. Also the front is protected good against a collision to 4 km/h and up to 15 km/h with low costs. After all, the front shall also crease a crush to 56 km/h relatively well.




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