BMW 8 E31 850CSi




Models BMW 8 E31 850CSi

BMW 8 E31 850CSi

Model: 8 E31 (1989 - 1999)

Wikipedia (8 E31): http://en.wikipedia.org/wiki/BMW_E31

As a top-of-the-range sports tourer, the 850CSi took over from the prototype M8. The 850CSi used the same engine as the 850i, which was tuned so significantly that BMW assigned it a new engine code: S70B56. The modifications included a capacity increase to 5.6 liters and power increase to 380 PS (279 kW; 375 hp).

The 850CSi's modified suspension included stiffer springs and dampers and reduced the car's ride height. The recirculating ball steering ratio was dropped 15% over the stock E31 setup. The model also sported wider wheels, with the option of forged alloys. The front and rear bumpers were reshaped for improved aerodynamic performance. Four round stainless steel exhaust tips replaced the square tips found on other models. The 6-speed manual gearbox was the only transmission option. In Europe all 850CSi's came with four-wheel steering (AHK - Aktive Hinterachs-Kinematik).

Production ended in late 1996 because the S70 engine could not be modified to comply with new emission regulations without substantial re-engineering.

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Engines


Year from-to Engine code Fuel [ccm] Cylinders [kW] [Nm] No. of
valves
1992 1996 S70B56 gasoline 5 576 12 / Furcate 280 550

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1997 BMW 8 E31 850CSi 5.6 (340 cui) V12

3 photos

Fuel gasoline. 4-speed Automatic transmission. Engine Furcate, S70B56, S70B56.

1991 BMW 8 E31 850CSi V12

Performance 220 kW (299 PS) . Fuel gasoline. 6-speed Manual transmission. Engine 12-cylinder, Furcate.

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