[masraum]

I would think good intercooler and good oil cooler and it would be possible. Fortunately the way the turbos are geared the engine wouldn't be near redline when it topped out. I think I've seen somewhere that redline in a turbo would be around 200 if the power was there. Now an NA 3.2 car does top out at redline. I think a new Porsche engine if prepared/built to spec and properly broken in would easily be able to accomplish the task that you say. Didn't they do similar runs and break records on test tracks all over Europe?

Because of the reduced compression ratio of the turbo motors I doubt they would come close to a same year NA car if the turbo was removed or not functional.