Quote:
Originally Posted by southlight
Compared to the version in the X5 M, the F10M engine has now Valvetronic and new "innovative solenoid valve injectors." This allows BMW to run a higher compression of 10:1 vs 9.3:1 in the X5 M. As you can see from the engine shots, they've also beefed up cooling. In other words, they've done quite a bit more to the engine than the raw hp and torque stats suggest.
Best regards,
south
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True, if I remember correctly the M5 has 4 intercoolers. I wonder how much further the turbos can be pushed in their efficiency range because apparently they're already at about 22 psi.