Nitrous
It seems that there are a few myths surrounding the use of nitrous (If I see another magazine article referring to it as nitro I will have to castrate a small animal - Nitro Methane is a very different substance)
Nitrous Oxide is not a cold burning fuel at all, it is not even a fuel in the context of a petrol engine.It is used to make the petrol burn more efficiently by supplying more oxygen to burn it with, this means it will then burn hotter. Therefore to make significantly more power it needs to be directly injected along with more fuel. Unlike the fogger/plate kit which just adds some into the air which is being drawn in. You will find that high power applications not only use extra jets for the nitrous in the inlet manifold but also extra fuel jets which are also solinoid activated.
Put enough of the stuff in with no extra fuel and it will melt pistons and valves due to the engine running too lean, therefore hot.
Have you ever seen a nitrous explosion, it happens, don't ignore it, if your gonna use nitrous on the road make sure you carry a large extinguisher, just in case. If it happens to you, no doubt it'll do significant damage anyway, but you might save your car from being gutted.
The other point which might be of interest is just about the Bravo family engines and their ability to learn. By now we should all know about Shell Optimax and its effects, two days of good performance and then a gradual decrease as the ECU realises that the fuel is carrying an additive which makes it burn more efficiently, does this sound familier. I don't know what effect this would have on a nitrous oxide injected car, but it doesn't look favourable for everyday running. It looks like without the nitrous performance could decrease as the ECU learns that the engine is running lean, it might also lose quite a few mpg, if it tries to make the engine run richer.
I'm no expert as you can probably tell, but there's so much **** flying around about what it is and what it does, I just thought I'd give you my P.O.V.
The Mighty