NOS Question?

[stwatson]

Ok....Ive been watching some of these movies on AF and I have seen 2 or 3 videos of cars EXPLODING because they apparently hit the NOS at the wrong time...so tell me....what time are you supposed to spray NOS. How does it work and why does that happen when you spray it at the wrong time? Thx.

[astroracer]

Although there is a "correct" time to hit the button the actual event is usually controlled by a micro-switch on the throttle linkage. This switch doesn't turn on until the throttle is depressed to a certain point (usually WOT). What you are seeing when a car explodes is a malfunction in the system. One or more solenoids not activating or a failure to purge the lines before a run.

[stwatson]

alright sweet...thx for the info...I was just wondering if it was human error or if it was instrument error....but I guess it can be a mixture of both in some situations! Thx again for the info....and I just realized that I posted this in the wrong forum....so SRY...dont ban me! Later

[drdisque]

cars can't "explode" because of nitrous, what you're watching is a bad hollywood movie that likes to stretch the truth and flat out lie. Nitrous isn't even flammable.

Also, call it Nitrous, NOS is a brand or a word for a new item that is out of production (New Old Stock)

[RandomTask]

Nitrous itself is not flammable-- correct. Thats in a PERFECTLY clean environment. Its an extremely combustable accelerent, It will help oxidize ANYTHING it can. For example, you have to make sure you're running plenty of fuel with nitrous, if you don't the nitrous will start to burn things other than the gas, I.E. your pistons.

[RandomTask]

oh, and the reason they call it NOS is because of the brand, Nitrous Oxide Systems. Not because of new old stock. (Just like 'Pass me a kleenex' as opposed to 'Pass me a tissue')

[drdisque]

I just get miffed when people call it that because nobody used that word until that god awful movie, and NOS was an even more dominant brand back then.

[stoned_pimp420]

NOS stands for Nitrous Oxide Systems.

[beef_bourito]

Nitrous doesn't burn anything (oxidise anything), the only reason it gives hp gains (besides the cooling effect from depressurizing the gas) is because at around 500 degrees it decomposes into N2 and O2 and the extra O2 (compared to air: air=21% O2 nitrous oxide=33% O2) is what allows you to burn fuel more efficiently

[stwatson]

Well whatever it is....it still caused a mustang to EXPLODE when they sprayed the Nitrous into the engine! The video is in the movie section of this forum...I think its called "Death to SVT". When they hit the Nitrous, the intake system exploded in a giant ball of fire! I also saw a movie of this happening with a Corvette and the hood SHOT OFF THE CAR in flames. So whatever happened...the Nitrous was the cause of it and I was wondering how it does this!

[curtis73]

From what I understand, when you inject the nitrous you have to time the fuel enrichment perfectly. If you don't it causes an extreme lean condition which causes a backfire. A backfire on nitrous is just a much more violent thing. Sometimes the fuel solenoid fails or the fuel pump doesn't supply enough and kablammo.

[-Jayson-]

often those NO2 explosions you see are due to something called puddling. Most cars intakes are designed to flow a liquid through them. When your injecting a wet kit (gas and N02 are injected through the TB) sometimes the gas sticks to the walls and doesnt go into the engine. After a while it can puddle up, and when the hot engine comes in contact with the puddled up gas, it ignites. Kaboom!

[RandomTask]

useful info!
http://www.go-fast.org/z28/new_to_nitrous.html

[v-tec]

NOS is also laughing gas

[curtis73]

Not quite. Nitrous Oxide, used in cars, is N2O. Nitric Oxide, used by dentists and called laughing gas is NO2