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Im almost done with the welding and im getting ready to start the plumbing but i decided to go with nitrogen was wondering if anybody else had used it and if so is there anything i need to watch for or make sure to get. im afraid im might blow out the bags and was looking for some input. Thanks

Well, air is 78% nitrogen already. I think strictly speaking nitrogen and air use different fittings (the CGA fittings on their regulators are different, for example, because air contains oxygen and is thus an accelerant (partial oxidizer) while nitrogen is an inert gas). However from a reactivity or pressure standpoint in an airbag system, no problem.

I would like to ask why you're going with nitrogen in an airbag system. Seems to me that if you have a nitrogen tank at high pressure, and you fill your bags, to then empty the bags you have to release the pressure in the bags to atmosphere. You can't put it back into the tank. Fill your bags and empty again...the nitrogen tank goes empty. That means you lose nitrogen and you have to fill the tank up all the time. Unless I'm missing something. But with air you have an on-board air compressor, so you get all the air you want...for free. You can't have an on-board nitrogen compressor, you'd need a generator and compressor and that's too much kit, trust me. (Unless that is you are planning on fitting an onboard liquid nitrogen tank to generate the gas...in which case you'd need to be certified to drive liquid nitrogen around. See why this is getting complicated?) Unless you like buying nitrogen gas cylinders, in which case have at it.

From that point of view, don't use nitrogen or you'll cost yourself an un-necessary amount of money in nitrogen tanks / refills.

he wants the quick action.

Nitrogen, makes a bag system very fast. quick lifts, fast side to side, powerful hopping.

My suggestion is that you keep a small 2 or 3 gallon tank hidden somewhere with a reserve charge in it and always add a schrader valve for emergency filling at a gas station. As sometimes the regulator can freeze and crack pissing all of your nitrogen tank away before you can turn the valve off. That way, you can still come up to minimum ride height and go home.

A.j.

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OK, so it's widely used and the technology is there. As I sit here thinking about expansion coefficients, the fact that nitrogen is dry, and that it's only a one component mixture it makes sense that you can get faster action with N2. I can see why things freeze as well; if it expands faster it gets colder. I love this site for learning about stuff to which I'm not normally exposed.

the are pros and cons to both air is free but after a while you get water in the system. and iv seen air systems just as fast as n2 just depnds on psi. nitrogen is is dry and unless you plan on hopping for 15 minuts straight you dont have to worry about anything freezing. you do need a bigger regulator as the presure in the n2 tank is 10000-15000 depending on where you get it so you will have to regulate it down to what ever your bags are rated for. if you do that you wont have to worry about blowing baggs. the only really big con about running n2 is it dont last. it would be a good sugestion to have a small tank hidden that you can swich over to like dr_frank said. cuz you wont know when your about out unless you got a pressure guage inside for the tank .

Thanx for all the help guys i really appriciate it, and i will definitly get a back up tank. Hopfully ill have the bags in and plumbed by this weekend and i will try to get a video up on you tube and ill post the address.

Also one more question if any of you guys have bagged a luv where did you relocate you shocks to up front. i have had a couple different ideas but really not to happy with any of them.

Heat does not make the volume on N2 change much...It is cleaner than 02. I have seen some people use n2 in drag tires.. I agree on some of the other points on n2

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75 Luv, 350 V8, TH350, Camaro rearend. New 1975 Luv Step side. Stock for now.
Grandmaster of the "Shade Tree" way.. I can't see the yard for all the cars. Come on down and we will sit on the porch and watch the grass grow.

Most of the NASCAR and many local circle track racers use nitrogen in the tires. The pressure stays constant as the temp changes. However it does sort of leak down more so than air between races.

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yes any time i have bagged a truck or car we move the shock up front or back it just is where you have room for it there is a shock kit to move it make sure you have good clearence for the bag to expand just my 2 centz also do a lock to lock

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dangerous-toys4life
73 3-door avalanche bdydropped on 18s
86 1-ton 4x crewcab short bd 15"lift
75 k-5 2x
94 king cab

lock to lock?

when you think you have a good place to put the shock tack the stuff in place the turn the wheel all the way left then all the way right to make sure to wheel and rims do not hit the bag or shock and take your time and look all over the place and do it with the truck all the way up and all thwe way down i hope this helps sorry took so long

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http://www.facebook.com/ez.cracker
dangerous-toys4life
73 3-door avalanche bdydropped on 18s
86 1-ton 4x crewcab short bd 15"lift
75 k-5 2x
94 king cab