Justin Posted October 17, 2004 Share Posted October 17, 2004 My nitrous kit documentation has a 'DO's & DONT'S' section. One of the things it says to 'DO' is - "DO purge the nitrous system at night or when the vehicle is left unattended." How do you purge the system? Does this apply to all NOS installs? Ta. Link to comment Share on other sites More sharing options...
qaisar Posted October 17, 2004 Share Posted October 17, 2004 u can get purge kits which shoot out the gas in the lines and look very cool at the same time Link to comment Share on other sites More sharing options...
Justin Posted October 17, 2004 Author Share Posted October 17, 2004 Originally posted by qaisar u can get purge kits which shoot out the gas in the lines and look very cool at the same time I know mate I've seen it on TV too but is it necessary? I need to know if I need to perform the operation on my car. If so ........how ... and if not ...why not? It also says to fit an IDU (ignition delay unit) or an ignition kill switch to prevent the possibility of backfires that may be caused when starting an engine with a static nitrous charge in the cylinders! Can someone enlighten me? I'm about to use my NOS kit for the first time but am wary of mishaps and don't want to shag my engine. In light of my rubbish 1/4's at Pod I'm gonna try first off letting some air out of my street tyres and using the progressive NOS to spool up the first turbo. Watch this space for further results. Link to comment Share on other sites More sharing options...
terribleturner Posted October 17, 2004 Share Posted October 17, 2004 As i understand it the purge just clears out any gas that may still be lingering in the pipes. Im sure you surpose to do it sometime before your actually intending to use it so as to get a max shot of nitrogen. Link to comment Share on other sites More sharing options...
b_have Posted October 17, 2004 Share Posted October 17, 2004 Nitrogen?? Link to comment Share on other sites More sharing options...
terribleturner Posted October 18, 2004 Share Posted October 18, 2004 sorry, i had a long day yesterday and now i see what i said. I make myself laugh. But you knew what i meant though Link to comment Share on other sites More sharing options...
Jason Posted October 18, 2004 Share Posted October 18, 2004 I have purge valves on my system, I can then let out all the gas from the lines when I turn the bottle off. They're not at a constant 600-900psi, less chance of any leaks then. Don't want to be laughing so much I can't see where I'm going. It looks good too. Link to comment Share on other sites More sharing options...
Supraguy Posted October 18, 2004 Share Posted October 18, 2004 Also read that its good to purge the lines before a run to clear the warm NO2 in the lines. Once purges, it forces colder (more dense) NO2 into the lines out the bottle for a bigger shot. All kinda wasteful IMHO. Link to comment Share on other sites More sharing options...
Whitelightning Posted October 18, 2004 Share Posted October 18, 2004 No satisfied with shiny bling, whooshie dump valves we now gotta have psssssch purgers ! I have a mini-bar in mine - will that become a fad too ? Link to comment Share on other sites More sharing options...
Ian C Posted October 18, 2004 Share Posted October 18, 2004 Nitrous oxide is injected into the intake as a liquid, that's how it makes it's power increase, the sheer density of the oxygen charge. When you aren't spraying, the residual liquid in the lines heats up and reverts to gas form. This gas is hopeless for performance increases, and it takes a second or two for NO2 to get from tank in the boot to engine in the front, which is a second or two of 'lag'. The NO2 purge vents all the gas to atmosphere, so you are then ready (for a few seconds) with instanto-power. It's not wasteful if you use it for it's intended purpose, but it only looks when you vent the liquid, the gas is invisible As for using it to spin up the first turbo, you've got one of the fastest spooling turbo's on the planet, the whole sequential system was designed around that aspect, you won't notice an increase in spool time, just an increase in power while you lean on the button Try not to hit a rev limiter or spray too early in the rev range btw. -Ian Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 18, 2004 Share Posted October 18, 2004 Apart from the idiot, I can purge longer, further, higher than you, factor, the real reason they advise it is in case a solenoid leaks and fills the intake with nitrous. A spark when you turn on the ignition via an open intake valve can blow the intake off. Which I suppose is even more idiot appealing than a mere purge. Faulty solenoid anyone...? Annoyed because some plonker in a Nova "purged" outside the pub the other weekend and I dropped my beer. Had only got enough cash left for a half, so was well miffed. Link to comment Share on other sites More sharing options...
Whitelightning Posted October 18, 2004 Share Posted October 18, 2004 So my Mini-Bar mod not so stupid after all ! Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 18, 2004 Share Posted October 18, 2004 Originally posted by Whitelightning So my Mini-Bar mod not so stupid after all ! No problem with mini (or any other size) bars AT ALL... Link to comment Share on other sites More sharing options...
Justin Posted October 19, 2004 Author Share Posted October 19, 2004 Originally posted by Ian C As for using it to spin up the first turbo, you've got one of the fastest spooling turbo's on the planet, -Ian No I haven't Ian, I have Hybrids and the first steel bladed wheel takes an age to spool up. It is the size and weight of the propellers on the USS Nimitz! Link to comment Share on other sites More sharing options...
dude Posted October 19, 2004 Share Posted October 19, 2004 Ian explained it perfectly , if the system isnt purged when you hit the button all you get is a massive injection of petrol and a slower time than if you left it off .!!!!!!!!!! Dude:flame Dev Link to comment Share on other sites More sharing options...
Ian C Posted October 19, 2004 Share Posted October 19, 2004 Originally posted by Justin No I haven't Ian, I have Hybrids and the first steel bladed wheel takes an age to spool up. It is the size and weight of the propellers on the USS Nimitz! Mine used to have hybrids too, and I still say it spins up real fast. A single turbo at 1500rpm in 6th is somewhat soggy by comparison I assure you -Ian Link to comment Share on other sites More sharing options...
Justin Posted October 19, 2004 Author Share Posted October 19, 2004 Ian. So folks do I need (safety wise not for bling reasons) a purge kit or not? My digital controller stops spraying after 4 seconds of WOT anyway so would it all be burned off at the end of a 1/4 mile run and not be an issue on my setup? Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now