Terminology

[Tumble]

Originally posted by Lowe
Err, not quite...

To cool the intake charge, you use water injection. And yes, that's exactly what it says on the tin. You have a small fine mister added along the pipe where the air induction line and water is misted in. This cools the hot air down even further, meaning you can play around with the ignition timing even more, and really wack the boost up to silly levels. Of course it only lasts as long as your water bottle lasts so you have to be careful.

NOS however is a catalyst, it helps the fuel burn more efficiently.

Water injection was in used in quite a few WWII aircraft engines, most notably the P-47 and BF109, although the 109 used ethanol mixed in with the water....

[steve threlfall]

Originally posted by Russ
nos its actcually dangerous tho is it? didnt think it was explosive unless used incorrectly????

nitrous oxide is flammable so it can explode

[Knoxville]

its not flammable, its an oxidant, can still explode though

[[GSV]Trig]

NOS is great stuff, use it on turbo cars for a bigger bang but instead of spraying it into the cylinders with the air/fuel mix put it in after the turbo then it also cools your intake temps down as well as making bigger bangs

[Lowe]

How will NOS cool your intake? NOS cylinders have to be warm don't they, hence why people stick em hear the engine so they get more pressure...?

[[GSV]Trig]

NOS is cold like most other compressed gasses....

[Knoxville]

But it also has an optimum temperature for being added into the cylinders for best performance

[sdp]

I thought it was supposed to be kept cold? I'm sure I've seen drag cars where the nos is kept in a container full of ice..

edit, no you's right - I was thinking of petrol chillers.