ORIGINAL: 1QwkSport2.5r
Nitro adds fuel to the flame creating more heat and the need for a richer mixture and thus lowering fuel economy.
As an oxygenator, nitromethane creates oxygenduringthe combustion process.
This why the mixture needs to be richer so as to add more fuel tocompensate for the increase in oxygen.
A more intense combustion thus creates more heat.
Although less fuel economy occurs, the increase in throttle response andhorsepower is often worth the sacrifice.
This of course,depends entirely on the efficiency of the engine design.
Happy flying, Oscar