Just the facts, ma'm Thanks, cuban3, for the factual slant on this. Whether you think that nitrous is "cheating" or not is opinion, still we need to avoid misinformation. I hate to be critical on a first post, but I hate all the misinformation disseminated on the 'net. I'm into turbo's, not nitrous, but I have hung out on many power adder boards that discuss nitrous oxide use. I have NEVER heard anyone claim that it leaves deposits until today. Chemically, it makes no sense either. It's simply a nitrogen/oxygen compound that breaks down in the combustion chamber into: yeah, you guessed it, nitrogen and oxygen. Nitrogen is inert, oxygen supports more combustion of fuel, thus the power increase. Engine damage occurs when people don't enrich the fuel properly, or run too much. I doubt that a 50-75 HP shot would effect the reliability of even a box-stock engine one bit.