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      07-09-2013, 04:12 PM   #208
NISFAN
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Drives: BMW M2
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Quote:
Originally Posted by solstice View Post
You shouldn't neccesarily need to drive the turbos to always keep the intake system pressurized. You would think a more simple electrical pump and some valves that switches when the turbos are up to speed would suffice. This to me this seems simpler and cheaper than electrically driving the turbos or an engine belt driven kompressor solution.
A thought: A supercharger takes something like 30-50hp to drive to produce 0.5 bar on a typical 3-4 litre engine. An indication on how much electrical energy you would need to eliminate lag with an electric motor. What you can do fairly easily with a 12v motor is maintain a minimum turbo speed, too low to produce boost, but closer to the revs required, which would reduce the lag a bit. However the actual extra weight in the system will undo the good you are trying to achieve in the first place.
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