I'm in the market for another atmosphere pump, unfortunately, and looking to go with permanent install aka OBA. I would use the system to:
1) inflate dual (isolated) air bags
2) inflate tires
3) occasional air tool or blow gun
Highest tire pressure is 80psi. I run different pressures in the bags. I have 4 options;
1) buy a complete system something like the air lift 25572
2) Stitch together a OBA kit and a dual bag controller
3) Stitch together a dual bag controller kit and add a tank
4) Buy all the pieces and make my own. (what engineer wouldn't?)


Ideally I would write some SW code and use the truck's gauge cluster screen to display tank and bag pressure (and tire pressure). Steering wheel controls to set bag pressure. In the future this SW will get hacked and allow custom application to be written. For now just a dream but that is what I would do if I could. Anyway , back to reality....


One option for #1 is the Air Lift (AL) 25572, $500. Haven't found others but maybe there are some. Since AL products use VIAIR compressors, it looks like the 25572 comes with a 325C, which is a 33% DC comp that can handle a 2G max tank and can deliver ~.8cfm @ 100psi. The dual bag control is big which will make a nice looking/easily accessible location very difficult


Option 2 is to get a OBA system, add a dual bag controller (not a bag controller kit) and a solenoid (AL 24636, $45). The VIAIR 10003 (~$300) OAB system also using 325C compressor, and has 2.5g tank. Logical next step is 100% duty cycle (10007) for another $100. For dual controller just the AL 25195 (2-1/16 gauge with buttons integrated, ~$100) could be used with either to complete the system. The 25195 could be mounted in a standard gauge pod, whereas the panel mount setup (AL 26229, like in AL 25572) can't. The wirelessAir remote, manifold and harness canbe bought seperately but cost more than the kit so not a good option for a controller.
(10003 OBA + soleniod + 25195 controller = $450)


Option 3 would be to get a dual bag controller kit (with pump) and add an air tank ($50) and a solenoid ($45). A few options are the AL 25856 (~$330) or the WirelessAir (~$400). Both these kits probably use a VIAIR 100C compressor, which is small and can only be used with a 1 gallon tank. I believe this is due to limited duty cycle (overheat) of compressor to pump tank from 0psi to 100+. So not much of a OBA system but fine for bag inflation. So the wimpy pump would need to be upgraded for tire filling and air tools, to say the 325C ($175).
(wirelessAir + tank + solenoid + 325C pump = $675)


Option 4 is wide open. For one more solenoid, the system could inflate the bags separately, as apposed to both and them dumping pressure from one bag. I would run a pair of mom/off/mom switches to control bags and a electronic guage so no air lines in the cab. Could also start with OBA and piece together bag control system.
So a system with simialr capbilites as above would be:
325C pump ($175)
tank ($50)
fittings, wiring components, pressure switch, ect ($100)
4 soleniods ($180)
Dual Pressue gauge electonic(glowshift $100)
~$600


If you have another solution or an experience please share, thanks

 

I am thinking along similar lines. I like the reliability that might be in the Airlift manual gage, but I don't like the idea of having to pump them both up then let one down.

Your sig doesn't say 4wd or 2wd, but I believe I have determined that if you do not have 4WD, the gage would fit very nicely where the coin holder/4wd select **** is in the dash. A possibility would be to use that gage, and add a switch (or use one of the uplifters) to select which bag to fill with the push button.

It would be nice if the upfitter switches could be retrofitted with something SPDT, would open up more possibilities in a neat install.

 

I use the viair #10009 system and just use a T fitting to feed the manifold for the air bags. The T goes from the pressure line at the viair gauge to the feed line for the Firestone air bag manifold. It's easy.

 

What air bag controller are you using?

 

I use Firestone bags and the Firestone single valve gauge/valve with the black face.

The viair manifold/switch/pressure gauge has a supply line coming from the tank inside to the gauge and I T from that line into the Firestone gauge which sends a line to the air bags.

 

Since you think you might have issues, even with the 325C, why not go up to the 400C?

2.5 CFM and 150 psi. I hate using pumps that only go to 100 psi to get my tires up to 80 PSI. It feels like it is really over taxing the pump.

I now it's a little more at $350... but it's rated for more in line with what you want to do?

Then again, I like to over engineer what I need to work.

But even a 350C pump seems like the way to go over the 325C for your stated uses.

 

Yep. I got the 10009 system with 2 pumps because I have 6 G614 tires that I run at 100psi. Takes a long time to get 100psi in 6 tires, let alone 80.