compressor wiring

can somone tell me the best way to wire a compressor w/out a pressure swith just a gauge

there is NO good way to wire it witout a pressure switch....your compressor will have a better life span if you just buy the pressure switch...

run a toggle switch, thats all you can do if you dont have a psi switch. i ran mine through a toggle and psi switch that way i could turn it off whenever the truck was off incase it leaked air and wouldnt kill the battery if it kicked on.

yea ive always used just a gauge on both my trucks but i got 2 viar 380s and was just wondering if i need a relay if there both fused to distribution block

Edited: 9/27/2006 5:02:04 PM by framelayer521

With two 380s, you definitely want to run a solenoid, as you may have trouble finding a toggle switch that can handle that current, and will melt and fail over time.Either way, a pressure switch is cheap insurance against blowing your pump up, so please do everyone a favor and get one!!!

-Phil at FBI

should i run like a ford starter selenoid or just a 4 prong relay

anyone got any input on this which is better viar p switch or the 2 prong ones

Originally posted by Iownissan



run a toggle switch, thats all you can do if you dont have a psi switch. i ran mine through a toggle and psi switch that way i could turn it off whenever the truck was off incase it leaked air and wouldnt kill the battery if it kicked on.

I just wired my PS with the ignition circuit so the compressors couldn't turn on with the truck off.

Originally posted by pewter2000



should i run like a ford starter selenoid or just a 4 prong relayYou can use a relay, or a solenoid. I used an industrial 100% duty solenoid, that's proven to be more reliable than the ford starter solenoids for us. I don't remember where I got it, or the part number offhand though.

Originally posted by pewter2000



should i run like a ford starter selenoid or just a 4 prong relay

you do not want to use one of those B/C it is not intended to run over a lengthed period of time, and it could possibly melt the connections together. Then the compressors would either not shut of or not work at all.

im running a stinger 80amp relay. works great, will handle up to 3 380's.

you can get them from a lot of places. i got mine from www.gravity-werx.com