I just picked up a 125ft^3 tank of nitorgen, and I'm starting to worry that it's not going to be enough air. Doing the math it looks like I'm going to get about 9 RRs (dirt sprint) filled with one tank, that's a little less than I had hoped.

Does anyone else use one for mounting tires? about how long or how many tires does it last for? what size tank are you using? I'm not powering any tools or doing anything else with it, maybe filling the occasional shock, or checking a barrel valve. Not using a ton though.

Im thinking we used a bottle about every 4 weeks . Thats filling 8 tires and doing a purge on each one after they were seated with air at the track. Meaning , letting the air out filling with NIT and then purge and fill again. Also we used it for the air guns and maintaining pressures.

Gavin,

I mount and fill with regular air, then use an old ac vacum pump to pull them down and refill with nitrogen.

You will need to make sure you have them seated good and watch how much vacum you pull before they un-seat, or you will have to do it all again.

I get 1/2 of the season out of 1 bottle as long as the bottle gets turned off each time.

I know you will use more for the Sprint tires, but the vacum / fill system will save a lot.

Gov

Thats a good plan Gov. I like that.

Hey, that's cheating...lol.

It's nice to have 2 bottles if you can... That way you don't have a night where you're not sure, and you don't have to exchange your only bottle when it's close but not gone...But if you have a good neighbor at the track, that isn't necessary.

Just so I get this right, you mean you're just not using the tank to blow them up on the bead? That was pretty much my plan. The beadlocks make it easier too. I was gonna use a ratchet strap instead of a pump though (easier with wider tires I imagine)

Saving the nitrogen out of a tire is a neat idea... I like it. (glad I thought of it) I wonder if the inlet side of a pancake compressor could be used to suck air out of the tire and save it, or out of one tire and into another. A bit eccentric, but sounds like a fun project for slow days in the lab.

I can run bleeders too, so I'm not super worried about having 100% nitrogen. I have a dedicated dry line on the shop compressor that I use for tires.

In general this is part of my plan to have a completely self sufficient trailer, meaning no generator, and no compressor. I'm thinking that this tank is gonna burn up a lot quicker than I planned. Its amazing all the stuff that'll run off an old fork truck battery, and how quickly it'll charge with a solar panel.