What size?

[jmag86]

I currently have a 5 gallon tank with dual dc7500 and 8 3/8 asco valves on my 86 c10. My question is do I next a bigger tank ? When I am aired all the way out and my air tank full it won't pick up the front all of the way up. It will kick the compressors back on when it only picks the front up like half way. Can y'all tell me why? And does anyone run dual 5 gallon tanks with dual compressors that can post a pic??

[N2TRUX]

I run two 3 gallons and have no problem getting to ride height after being aired out completely. I think two 5's might be a bit much, but if you can make them fit go for it.

[Hottrucks]

Lesson 1 always pick the front first..thats where the weight is..I have a 5 in my 70 and can pick it up 1.5 times before I'm out of air ..my comp pooped out so thats all I have

[bludshaker]

What psi are you running? I have a single 5gal tank with a single Viair 200psi compressor with 8 Smc 3/8 valves and lines and lift my truck in one shot. My compressor kicks on after I lift it. Maybe try 200psi if you don't have it set up that way already!?

[jmag86]

I dont know how much psi I am running cause I had it installed, and i have no gauges. I dont know what the pressure switch is set at. How can I change the psi rating on the pressure switch?

[N2TRUX]

You should verify that you have the correct pressure switch for the compressor. Never run a higher pressure switch than what the compressor manufacturer recommends. With out gauges it's hard to tell, but I don't think your tank size is the problem.

Tell us more about your system.

[jmag86]

I dont know what p.s.i I am running cause i had the system installed. I do not have air guages as well. So how would I increase my p.s.i on my pressure switch?

[jmag86]

And what is a good cut off pressure for a 86 1\2 ton with a 5 gallon tank?

[bludshaker]

I run a fixed pressure switch. It kicks on @ 165psi and turns off @ 200psi. I would run a 200 psi switch or something close to that. But like N2TRUX said you don't want to get a pressure switch thats greater than what your compressors are rated for. I am not familiar with the compressors you mentioned but I'm sure the manufacturer could tell you what switch to use. You need a 200 psi compressor to use a 200 psi switch, etc... Hope this helps. (also get a gauge to help monitor your system and you'll always know what your tanks psi is @.)