I would suggest that perhaps nitro *can* allow you to tune an engine to run cooler (by richening it up a whole lot (beyond the ideal stoichometric ratio) and thereby sacrificing some of that extra power for lower running temperature), BUT, if you tune for max RPMs then your engine *will* run hotter. Here's some supporting evidence:

A quote from the bottom of [link=http://www.whitek.com/bnvle.htm]this page[/link]


Nitromethane is basically rocket fuel. It contains its own oxidizer, and so it makes power based on how much nitro you can force into the combustion chamber rather than how much air your engine is capable of pumping. The only drawback to using more nitro is that your engine will either melt or explode, with the explode event occurring more often than the melt event. To tone the nitro down, it is mixed with alcohol. Alcohol has the benefit of having a very high latent heat of vaporization, which means that it cools the engine a bunch

Do you think these guys know what they're talking about perhaps?