Topic: OBA setup

[Ghost65]

OBA setup

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[Jayrat]

Jay, take a look at my setup tonight, might give you some ideas.

All this OBA talk , so many ideas, Eric (Celt) has an awesome set up, now I have to look at Jordan"s (Knightrider)
then get my ass in gear and install

[0317]

Puma

OBA setup

[JFanaselle]

Well the pressure switch FINALLY arrived in the mail today and I was able to get the OBA setup finished. Just in time for Bradshaw.

The teflon tape I used must have been low quality or something, because I have some tiny leaks around the brass "t" fittings. They're very small leaks, but with no tank, it's making the compressor turn on and off about every 10 or 15 seconds. Turns off when it hits 110 PSI, and turns back on in about 15 seconds when it leaks back down to 90 PSI and runs for about 2 seconds until it hits 110 again.

I'll get around to fixing it after the trip. But I did test it out earlier and was able to air up one of my tires from 20 to 35 PSI in about a minute and a half. That's good enough for me.

The more I thought about it, the more I was worried about the compressor running hot in that crammed little space (thanks a lot, Ghost! ). I decided I'd sleep a little better at night if I hooked up some kind of fan to at least push a little bit of air into the space where it's mounted. I shopped around and found a small 12v blower for ventelating electronics on eBay for $20. Turned out the seller was right here in Murrieta and I picked it up from him the same day. I fabricated a little bracket and mounted it in a way to blow air straight down onto the piston housing, which also circulates down into the area where the compressor is mounted to cool the motor a little. I wired it to the switch that controls the relay BEFORE the pressure switch. So, when I switch on the whole system, the fan runs the entire time and the compressor kicks on and off as the lines are pressurized or when pressure drops. This way, the fan will continue to cool the compressor as I move from tire to tire and it's switching off. Overall, I'm very happy with how it all came out!

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[knightrider]

Yea I will be using my little red mv50 for this trip, I wasn't able to source a piece of braided hose to connect my new pump to my tank, hello 20 minute fillup on Sunday

[JFanaselle]

Yea I will be using my little red mv50 for this trip, I wasn't able to source a piece of braided hose to connect my new pump to my tank, hello 20 minute fillup on Sunday

Bummer. What do you normally air down to? I'm always afraid to go too far below 20 PSI. Makes for a quicker fill-up at the end of the day, too.

[Celt]

Bummer. What do you normally air down to? I'm always afraid to go too far below 20 PSI. Makes for a quicker fill-up at the end of the day, too.

20 psi? Gesh man that's near roadway pressures. 8-12 psi is where it's at my friend!

[knightrider]

yea my normal air down is around 12, 8 if theres deep sand, 18 if im running the washes at 60+mph.  my puma pump/5gal tank would go from 10psi to 40psi in 6 minutes doing 2 tires at a time, hoping my air zenith ob2 will be even faster, plus i will have more reserve in the tank since it goes to 200psi vs the 120psi of the puma.  40psi hot works out to about 35-37psi cold. 

[Toro]

I got you covered

OBA setup

[xxSVxx]

Danny, can you just tell me....any issues with it overheating or reaching boiling temp back there?  It's not that exposed to fresh air, and I assume that means longer to cool down...

Now, it's definitely not getting submerged or eating a ton of dust, which makes it the more attractive option especially if I'm gonna do it right the first time...

Is that the whole thing?  Where's the tank itself? Are the 2 blue things tanks?

[Toro]

It does get pretty warm in there, especially with the fridge now right in front of it. Phases 2.0 is going to be installing a small fan onto it.
   The blue cylinders you see are the actual pumps. There are two of them working together with the outlet right near the middle. This is what gives this compressor its high ouput.
    There is currently no tank with this. Everything runs right off the pump with out a problem. I have a 5 gallon tank that will be going in during the next major upgrade.

[scott307]

Here is my setup - ARB Dual with 2 gallon tank. The unit doesn't seem to get real hot in the cabinet, but If I'm running for a longer period of time, I open the drawer and let it get some air (I have to open the drawer anyway to get my air chuck.)
Guage and Switches
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Rear Cabinet
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Top View
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Side View
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Tank
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Locker
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Quick Disconnects
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I used to have a Viair mounted upside down near the tank (in the empty spare tire space.) It worked great and never had any problems with the dirt or water - I rerouted the intake to a place inside the cab so it would get fresh air (Note - If you extend the intake line, get a larger diameter hose.) I upgraded to the ARB only for speed.

[GreenGoon]

That ARB compressor is fast, especially for its compact size. I'd like to upgrade to one eventually.

[PainRoller]

So I have questions.... 

1. I like the idea of installing the tank where the spare tire goes and the compressor in the storage compartment. Especially for water/mud crossings..
Any issues with this setup?

2.  I think KnightRider is running this system Air Zenith OB2.  Can you run Air Tools off this setup?  My Google understanding is Airtools require 3-6 CFM at 90psi to run correctly.  Is this true? The AZOB2 runs 2.66 CFM at 90psi

This is our max price point for OBA at this time (aka no ARB system).  If the AZOB2 can't realistically run air tools - we are looking maybe at this option...... VIAIR 200 PSI Ultra Duty Onboard Air System which only runs 1.13 CFM at 90psi

3. I do like the Stainless Steel Braided Air Hose vs. the VIAIR 30' coil hose.  And I notice the AZOB2 has 1/2" NPT Air Tank Fitting vs. the VIAIR 3/8" NPT Intake Port.
But are these differences significant?

4. Anything else I need to consider?

As always, I appreciate all input and help with spending more money......

[RBduffer]

1.  No problem, just know the comp. does get hot.

2.  Air tools vary greatly on requirements.  Mr, Jordan?

3.  No.

4.  I think that you can get more for your $ by piecing together your own system.  I got about $200 into my dual comp. set-up.

We'll talk