BMW M70

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The BMW M70 is a V12 piston engine and featured heavily in the 7-Series and 8-Series BMW's of the late 80's and early 1990s. Models included:

  • 1988–1994 BMW 750b
  • 1988–1994 BMW 750iL
  • 1991–1993 BMW 850i
  • 1993–1995 BMW 850Ci
  • 1994–1996 BMW 850Csi


Models
Engine Displacement Power Torque Redline Year
M70B50 5 L (4988 cc/304 in³) 220 kW (299 hp) @ 5200 450 N·m (331 ft·lbf) @ 4100 6000 1988
220 kW (299 hp) @ 5200 450 N·m (331 ft·lbf) @ 4100 6000 1988

[edit] Types

M70 engine in 1992 750 IL
M70 engine in 1992 750 IL

[edit] Euro Specifications

  • Displacement: 4988 cm^3
  • 12 cylinder V-arrangement 60 degree
  • 24 valves
  • Compression: 8.8:1
  • Stroke/Bore: 75 mm/84 mm
  • Firing Order: 1-7-5-11-3-9-6-12-2-8-4-10
  • Max power: 299 bhp / 220 kW @ 5300 rpm
  • Max torque: 450 Nm @ 4000 rpm
  • Max rpm: 6000–6400 rpm *Gearing

Applications

[edit] S70B56

5.6 L version

Applications

  • 1992–1996 E31 8-Series
  • Developed specifically for the 1992 BMW 850CSi, a BMW Motorsport vehicle
  • Lowest production engine in BMW history—1,510 units
  • Engine was used in a few supercars of the late 1990s

[edit] S70/1

6000 cc (approx.) ver\ion.

Applications

  • M8 prototype

[edit] S70/2

6064 cc version developed for the McLaren F1. Complete redesign from M70 and has no common parts, is actually closer to an S50B30 engine from the E36 M3. Engine block is shorter and lighter. Variable intake valve timing BMW VANOS two position adjustable.

Applications

[edit] S70/3

6064 cc version, further refinement of the McLaren F1 engine meant for racing. Later destroked to 5990cc in 1997.

Applications

[edit] External links