Quote:
Originally Posted by gr8000
why dont they run the turbo with an electric motor that matches exactly the air volume needed / desired at "any" rpm? Wouldnt the lag go away that way and at the same the desired air flow in the intake would be "perfectly" matched at any rpm?
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You are right and this would work brilliantly, only thing is that it wouldn't be free boost as is the case with normal turbos, the electricity to drive the turbo unit has to come from somewhere. Though I doubt it would come close to requiring the same amount of power as is required to drive a supercharger.
I would imagine that if South is correct and the next M5 will include KERS then the likelihood is BMW will side step the lag issues by also using KERS in the M3. Jaguar are also close to launching a model with this technology so it's definitely on the cards for BMW to do the same.