Quote:
Originally Posted by Pinz
Is the reason these diesel engines don't have so much power compared to petrol engines is because the engine can't' go as fast? RPM-wise? Since power is proportional to RPM, that would be my guess. If so, it would make these engines wonderful for street driving, as you usually don't redline it when you drive on the street (and if you do, you're probably not the norm... yes, even in your M3!). A more efficient engine with lots of torque, my next DD might be a diesel!
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Might be a little too much of a generalization. Diesel is thermodynamically a more efficient cycle since it can operated at higher compression ratios. Otto (gas cycles) will predetonate (knocking) if operated at typical diesel cycle compression.