nitrous is inconsistant becuase the bottle pressure goes down as u use the bottle,(950 is key here), turbo cars and superchargers are based on rpms and boost, but the main inconsistency in a race car....get ready for it..... is u. we never race the same, no mater how many times we do the dance, everything changes and we have to adapt, weather, atmospheric pressure etc.to get real consistency, use a trans brake, fuel injection, and a pwer adder of ur choice, just have to have a log and moniter everything.