Charlie1670

hey guys im looking at installing a air compressor in the rear seat compartment. i want to be able to bolt it down and wire it to a switch. i was wondering wat compressor i should get. i have NO idea.

SteveMongr

I suggest the VIAR 400. Or the VIAR 4x4 and RV compressor kit.
I have one hardwired to a relay. It fills two tires at once in under 5 minutes. Coupled to an Optima yellow top, it will fill all 4 tires without engine running.
The key is air volume. High pressure is not necessary, just 30-50 pounds for tires. Check the CFM rating, Cubic Feet per Minute. The 400 is 2.5cfm.
I have the compressor mounted next to the rear cubby hole and the cubby stores the air hoses.
http://www.viaircorp.com/400C.html $180
http://www.viaircorp.com/400P-rv-auto.html $100??

Fred/N0AZZ

Yes I have the VIAIR a larger one but still small in size it will handle 150psi and fill a 35" tire in short order. I think its rated for continuous duty and came with a lot of accessories like coiled 25' air hose, air gauge/deflater, several other pieces also a very nice carrying case.

I bought it at JC Whitney and had a $40 coupon they had emailed me for purchases over $200. The # a 45043 $300 - $40 net $260 free shipping. Now I can air down when I get there and back up again when I leave and not have to wait forever with the old one from Wal-Mart.

I checked its a 450C it looks like but I really like it.

SteveMongr

Sweet, that would be the VIAR 450. 100% duty cycle.
The 400 has the same flow rate at 33% duty cycle, can run 45 minutes continuously at pressure.
Link to the 450
http://www.jcwhitney.com/viair-450p-...?filterid=u0j1

sreeb

When comparing the 400p and 400p-rv (which you linked) it looks like the only difference is that the rv version has really long hoses. Am I missing something?

SteveMongr

Correct, the compressor is the same but the RV version is meant to be portable, has a handle, quick connect air fitting, larger base, and alligator clips for battery.
The other is meant to be hard mounted and hardwired. The hose has a threaded end for a tank or airline.
Note,Any compressor that plugs into a cigarette lighter socket will take forever to fill tires.

sreeb

From the viair website, the 400 has a 50% faster fill rate. I should be able to air up my 33x12.5s in two minutes each so no worries about duty cycle either.


I may get one of these.

sreeb

The 400p and 400p-rv are both portable. I think the RV version just comes with an extension hose.

SteveMongr

Correct about the fill rate, 1.6 cfm for the 450 and 2.5 cfm for the 400.
Filling 4 tires is well within it's 33% duty cycle. Keep in mind, it gets hot.

Charlie1670

now the question is do u think it will fit underneath the rear seat

XJ0nTons

Don't put under rear sit they get hot, I ran it under the hood on the fender well

XJ0nTons

I ran the viair 444 100% duty

XJmike0122

You didnt say any thing about price so 6.16 CFM http://store.arbusa.com/ARB-On-Board...-P21341C9.aspx

sreeb

Now that I am ready to actually buy one, I see that there is a smittybilt 2781 that claims 5.65 cfm.

Has anyone tried one?

RWKHausSupply

I have one of these in my truck for the truck and trailer tires. Works great and Fast.

http://www.northerntool.com/shop/too...FRdsfgodUFsAYw