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      06-24-2013, 10:55 AM   #82
mkoesel
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Quote:
Originally Posted by hector View Post
wasn't an electric turbo (as part of a tri-turbo system) supposed to be a possible solution to the lag problem, or tangentially related, an electric motor complementing a FI engine?
Theoretically.

In practice it hasn't been done yet to my knowledge, at least not in a production car. The problem is, it takes a significant amount of energy to keep turbos spinning at high RPM and boost pressure up. A KERS type system could work, but adds weight and cost. There's no free lunch.

In any case a separate electric turbo (so-called tri-turbo) seems like an inefficient solution. Instead, you can add electric assist to the existing turbos, eliminating some hardware and complicated manifold routing.
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