Wikipedia will actually entirely answer the question here: http://en.wikipedia.org/wiki/Combustion#Temperature

Here's the quick lowdown from that section:
<div class='quotetop'>QUOTE (Wikipedia)</div><div class='quotemain'>In the case of fossil fuels burnt in air, the combustion temperature depends on all of the following:
* the heating value
* the stoichiometric air to fuel ratio
* the specific heat capacity of fuel and air
* the air and fuel inlet temperatures.</div>

The "heating value" of the fuel (which is gasoline) will not change from normal aspiration to turbo to nitrous to any other forced-induction method. It only changes if you change fuel, say to ethanol.

The stoichiometric air to fuel ratio -- well guess what, if you're running LEAN, it will get hot! Duhhrr. If you're doing the mixture right, the temperature stays the same, regardless of forced induction method.

The specific heat capacity of the fuel and air -- welp, atmospheric oxygen actually has less heat capacity than nitrogen, which is why it expands faster in your tires when your tires get hot. Why do high-performance tires call for a nitrogen fill? Because it can soak up more heat before expanding. In this circumstance, the nitrogen in N2O is yet again helping us in comparison to the other forced induction options.

The air and fuel inlet temperatures -- well, fuel temp won't change, and we already discussed nitrous cooling the air significantly during discharge. Yet again, combustion temperatures going down because of air inlet temp changes.

I have entirely now proven why nitrous does NOT increase combustion chamber temperatures, in line with the same dialog I've been having the entire time. I have also, as a sidebar, shown why nitrous can actually end up with cooler combustion chambers than equivalent mechanical turbocharging or supercharging methods.

Oh, and DTN, you still owe me quote where I said anything about "compressing heat" or "burning energy" -- you know, the stuff that YOU actually did? Talk about ad-hominem...

Arguing with DTN with physics is the most pointless thing you can ever do. Red, you're just wasting your time..

DTN has never taken a university level physics class, that is apparent. The title of this thread is a big joke in itself.

I'm not trying to attack anyone, but I have seen DTN argue physics time after time, I have even proved him wrong before, but he refuses to ever admit he is wrong, and seems to always think his way is right. Well, it's not. Sorry. Don't be angry, nothing against you, but it's the truth.