Gotcha!
Only 'real life' issue I'd see is the drivablility and response in acceleration. No doubt you'd get nice wheelspin with the turbo, but accelerating on a track or streetcorner I'm not sure the lag you'd get is worth it. It would sure feel like a rocket at somepoint in time on a straight line thought. nice punch. I had a maserati 3200GT Biturbo, nice car and great punch, but drivability on a track, another story.
Or, for that matter, try driving up a mountain road with tight corners and fairly straight pieces in between. You'd need to shift all the time...
Lets see what the heffner TTGT will do.