to the others.
2N20 + heat = 2N2 + 02
Roughly by mass, 33% is 02 and 66% is N2.I'm not going to bust your chops on the fact that you didn't go through the rest of the stoichiometry (and its not 20%/80%), we'll just take it as a correction. I'm tired of playing these social games. Comparing this to atmospheric air which is 21% O2 and 78%N2, you obviously have a higher percentage of O2. The the energy release is always the same (H and C oxidation), but the lower quantity of N2 in the mix (with N2O injection) will cause the overall temperature to be higher. In this case, although you have less particles of gases in the turbo+N2O setup, the higher(than with just turbocharging) temperatures promote pressure which creates the same force on the piston. So rather than producing the pressure with more particles (as in a solely-turbocharged setup), you are producing the pressure with less particles, but higher temperature(turbos+NOS). Given the sole fact that an N2O injected engine has a higher quantity of fuel and lower quantity of nitrogen in the mix means that the combustion temperatures have got to be higher. Although haven gone full circle with the discussion and concluded what was already known, it has always been well known that parts get hotter with N2O setups. Now we have figured out why. The other thing I have been thinking about is the fact that what people call a 60HP shot of NOS is not exactly as defined. Since the N2O injection rate is static, as the engine's airflow demand changes, so will the effect of the injected N2O. You can see this by comparing the two runs and noting that at 4700RPM there is a 200ft/lbs TQ difference between the two, but at 6700RPM, there is only a 100ft/lbs TQ gain. 
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