These Canadian guys are using nitrous to supplement low end troque effectively eliminating turbo lag. The dyno graphs are REALLY impressive. They are almost doubling bottom end torque from 117 to over 200 ft lbs at 2500 rpm. That's V8 numbers. I have zero experience with nitrous and any ill effects it has, but if it's shutting down at 4500 rpm once the turbo takes over, I would imagine it produces much less stress than using it at the top end of the power curve like drag guys.
Any feed back or thoughts would be appreciated.