One question, are you guys using CO2 or Nitrogen? CO2 varies so much with temps and would vary with driving and load. Nitrogen does not vary like that....and remember with paintballing clouds of vapor, that is what is going in your tire.....

 

Yup CO2 for me. Is in liquid form rather than a compressed gas so about three times the gas volume of Nitrogen. Also safer in the event of a failure- just get CO2 snow in event of sudden decompression not such a high pressure bomb as compressed gas. CO2 maintains about 700psi head until all liquid gone. Nitrogen is used for race car, high tire temp applications but pretty much a con for daily drives. CO2 will be absorbed by any moisture in the tyre which will become slightly acidic but much less acidic than soda so no real problem.

 

Tyco, Thank you for your answer , but Nitrogen is not dangerous as you made it sound as the air we breathe is 70 to 80 % Nitrogen . it doesn't turn into liquid at higher low temps as CO2, which as you said has a acidic property to it. which I would think it eat rims... Both under pressure can be a bomb. I have quite a few years working with gases for diving and welding. I just feel Nitrogen would be a better. How often do you have to have your bottles certed? And who fills your bottles, Welding supplies or someone else? Thanks again for the feedback as I have been out of four wheel for a couple years...

 

I have a 10lb tank. So far I've been able to air up 16 tires to 32psi. Cost me $13 for refill.

 

In liquid form co2 is a constant 800psi in the tank until the tank is empty.

Dale

 

Sorry for the slow reply. I agree Nitrogen is not a harmful gas just more of a giant spring in compressed gas form rather than having to undergo the change of state that liquid CO2 does. CO2 bottle good for 10 years here in New Zealand. I just get mine filled down the road at an industrial gas supply company. My bottle was from a large home brew system. I don't think rims would get eaten by the CO2 in a little moisture, again no more acidic than soda and thin cans seem to hold up fine . For me the deciding factor was gas volume and low cost of CO2. Plus of course I now have a giant and very cheap Sodastream machine (tire valve in a bottle top).

 

Love my IAS. Comes with no gauges and a 150# regulator. It will ice up on the outside but I haven't noticed any loss in performance. I've only aired up my 4 35s from 12 to 28psi a few times. Cost around $15 to fill my 10# tank from a welding supply store.

 

I love my Powertank. I don't know much about the IAS, but I never had to look as the Powertank is worth every penny. Yes its more money, but the regulator and couplers just work and keep working no matter what. The regulator is clear and very readable telling you exactly what's going on. Plus there kits come with different options, so your getting more than just a tank for your money. Plus the customer service is fantastic and always there to help. If you have any issues and they are at a show somewhere they replace on the spot usually no question. They also make a specific JK bracket and there new hose coupler accepts multiple fittings not just one.

 

That's for all who responded this is an thread that seem to come back. I purchased a Powertank I love it only issue I have is mounting it in my 11 JK 2 dr soft top of i could find a mounting solution I would be happy as pig in s***

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Here you go, use the mounts that came with the Powertank, no issues when I put the top on.