Well for a start, only exceptionally old engines "Come on Boost". Its like some internet myth that turbo cars just suddenly dump 300bhp to the wheels without any warning
Every car with a turbo'd engine, I've played with (1991 onwards) has a variable demand placed on it by throttle. I.E. if your not at full throttle, you don't get full boost. You can get loads of turbo engines up to 6500 rpm with out the turbo giving you more than 2 psi.
Plus a turbo doesn't have to be huge, a nicely balanced one, just to push your torque all the way up. Or perhaps an Eaton supercharger to give you, say, 6 psi of boost.
I'd say go for it. Whats wrong with more power? I'm not saying you can't have fun with 125 bhp / tonne.... but personally I want more than 200bhp / tonne in a sportscar
