Quote Originally Posted by Turbocharged400sbc View Post
a twin charged car is a crutch for too large of a turbo that spools slowly due to lack of exhaust volume. the SC helps grunt up the bottom end but then becomes a drag up top as it falls off in pumping efficiency as the turbo reaches its.

not a problem nowadays with VNT turbines allowing for the best of both worlds with a turdbo.
that's what I was trying to say last night, but I couldn't see past the red, and all that really came out was that the supercharger helps with low and mid power, but when the turbo starts taking over, the supercharger gets in the way. I suggested a clutch should be used to disengage the supercharger when the turbo took over, but the cost of a clutch is going to be excessive.