Wednesday, March 26, 2008

Out With The Old In With The New: BMW M3 V8 Engine


BMW’s new and upcoming E92 BMW M3 marks the shift to V8 power after 15 years of six-cylinder power. The E46 M3’s 3.2 liter straight-six was a legend, and is still being used by the current Z4 M Coupe and Roadster. This 3.2 liter engine stole the ‘Engine of the Year’ award multiple times. It made 343hp in its latest edition. But now in the M3, it’s time for it to bow and leave the stage and makes way for its successor, the new BMW M V8 engine.

This new engine displaces 3,999cc and makes 420hp at 8,300rpm, It’s a screamer, revving all the way to the redline of 8,400rpm. Torque peaks at 3,900rpm with 400Nm (Newton meters), with 340Nm available from as low as 2,000rpm. The new 4.0 liter V8 is also amazingly lighter than the 3.2 liter inline-6 it replaces, weighing in at a mere 202kg, 15kg lighter than the inline-6, despite an additional 2 cylinders and all the extra valve train parts for a 90 degree V-design.

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