your deffinetly right about the inner cooler. if done right you shouldn't need more than 8 psi on a street engine. I remember hearing about lingenfelter using nos in a land speed car. He turboed a 350 and used the nos to cool the inner cooler and this was all done on 6psi boost. I'm not sure how it was set up but it seems pretty clever. with intake air that cold and dense the thing should have throttle response like a n/a motor
