[Chouse]

It's not that you'll blow the widefire gasket , but rather that the detonation that the super lean mixture produced will do alot of other things instead of blowing the headgasket, even with the stock one. When an engine goes lean and detinates, it will melt a hole through the piston. My understanding is that detonation is basically pre-ignition, with a mixture that lean the gases will ignite too early, when the piston is still too early on the upstroke, as its compressing the gas. The lean mixture creates a hotter than normal combustion, which is made even hotter due to the still increasing pressure. This will melt a rather nice hole in your aluminum piston. Also since the explosion tries to push the piston back down too early, it will insanely increase the wear rate on your bearings. I found this out on my G60 Corrado (no NOS), which one late night after doing the timeing belt and water pump, I was too lazy to check my ignition timing, I did it a few days later, but i had done enough damage that about a month later, it wouldn't run and I found a nice 1/4 inch hole down the side of one piston, and a slightly smaller one in another, and my bearings were pretty shot (down to the bronze on the upper rod sides). So as long as you have enoguh fuel to keep the correct air/fuel ratio with the nitrous, you shouldn't have a problem, but if go lean while feeding nitrous, or your timing is overadvanced, you end up with holy pistons. (No, you won't go faster becuase they're lighter)