This sight tells how to make your own nitous injection system, they say N2O is used as laughing gas. youll be laughing if you implement this in your car.dont know though...... could be dangerous. http://www.nitrous.info/

I've sen that, gonna have a go on my mini
It's inductrial grade N20, they put chemicals in it to stop mad people like yourself inhaleing it I think they use sulpher so all youd get is an extremely unpleasant taste of rotten eggs!mmmmm... tasty.
The nitrous isn't dangerous, only if you get greedy with it. Stick to sensible amounts and it does the engine good, burns off all the carbon. AND contrary to popular belief its not flammable! Not untill its under extreme compression where it breaks down into Hydrogen and Oxygen anyway. If there was a leak it would just make everything around it very cold. Only causes engine damage when it runs lean.
IAN

Hmmmm, that's interesting, N20 seperating to become hydrogen and oxygen. I could have sworn it would become nitrogen and oxygen.

Kingr