That is where I put my dual Arb. I believe some here has installed Viair's there also

 

Napa Air Compressor ? Which one ? One of the small 12v ones ? AFAIK there's only 2 main players in the offroad on board air industry; ARB and Viair.

I, like many others, mounted an ARB twin under there using 589fabs mounting bracket. It airs up my 265/70s (31") very quickly and will air up 285/70 (33") or 315/70s (34.5") just as easily.

You can read more about it here

How To: ARB Twin Compressor install | 589fab mounting...

Obligatory not affiliated with 589fab or ARB, I bought all of this myself, none of it was provided to me, etc... Time required: 4-6hrs Tools used: Loooooots of patience (couldn't find a link, maybe someone can post one up for me) My trusty ATD Saber Under Hood light Lots of 1/4" drive sockets...

www.coloradofans.com

 

I do know about the ARB Twin, even single set up on there. After a lot of research, the Napa twin compressor put performs the ARB twin and is only around $100. I understand that you get the small form factor with the ARB.

https://www.napaonline.com/en/p/BK_MTWM10215C?cid=paidsearch_shopping_dcoe_google&campaign=GSC-Paint-Body-Equipment&campaign_id=10947560788&adgroup_id=110533803034&adtype=pla&gclid=Cj0KCQiAk4aOBhCTARIsAFWFP9HUJ33usgPkOZMMdQN2LXsVFMAGpT282wzbv64GFUC5ugsdBSO7jbwaAlXIEALw_wcB&gclsrc=aw.ds&

I just want to see if anyone made a bracket under the tank before I start cutting cardboard to make one.

thanks for the input!

 

I've watched a few YT reviews on the Maxi Trax (NAPA) compressor. All commented on the size, larger than they expected. The Maxi Trax blows everything else out of the water, amazing CFM for $100. Maxi Trax has several other items that are very reasonably priced, 8ft awning, tire deflator, trash caddy are all very reasonable $$ and great quality.

 

All air compressors get hot, especially when pushed hard. I highly suggest using an auxiliary fan on it.

I have an inverter setup in the bed of our truck. I used my HF super quiet 2 gal compressor for spraying water proofing stain on a fence. Took me about 3 hrs. Compressor was NOT designed for that. It ran non stop. I put a Walmart 8" high velocity fan, turned on high. When I was done, compressor was not any hotter than it has ever been. It worked like a champ. Just aim it directly at the cylinders.

Heat is usually what makes every compressor fail, regardless of brand. If I did a permanent install, it would be the ARB twin but I would include a fan or 2 also.

 

If you guys are putting together a new air compressor set up I can recommend Permatex Hydraulic/Pneumatic sealant. My experience proved to me that it seals fittings much better than Teflon tape. Just my opinion. 👍🏻

 

If you guys are putting together a new air compressor set up I can recommend Permatex Hydraulic/Pneumatic sealant. My experience proved to me that it seals fittings much better than Teflon tape. Just my opinion. 👍🏻

View attachment 420501

I do enjoy some liquid thread sealant, but with the move away from brass fittings lately (to inactive metals like stainless/aluminum) most of the liquid sealers wont cure without an activator. Since I linked aluminum manifolds/couplings, I recommended teflon tape. Liquid is also much more expensive even without the cost of the activator factored in. Teflon doesn't require a cure time, works in the winter, and is quick and easy to apply/redo. Liquid thread sealants (as you know) can get messy and require some skill/finesse to apply correctly for a good seal.

For reference only (couldn't find the tech data sheet for the pneumatic thread sealant specifically):

 

The napa compressor looks nice, but 300 lpm?
That is 10.6 cfm
Vs
Arb twin 173 lpm at 6.16 cfm

What is the duty cycle of the napa compressor?
The napa looks alot like the $40 twin cylinder compressors on amazon

I was just under my my canyon looking which way to add my compressors.
Just took some pics and measurements, I am debating on acouple different spots, one I just looked at was, above spare tire.
Alot of room above spare, just debating on the weight so far back, we I am looking at several items, compressors, tank, battery, hose reel

 

The napa compressor looks nice, but 300 lpm?
That is 10.6 cfm
Vs
Arb twin 173 lpm at 6.16 cfm

What is the duty cycle of the napa compressor?
The napa looks alot like the $40 twin cylinder compressors on amazon

I was just under my my canyon looking which way to add my compressors.
Just took some pics and measurements, I am debating on acouple different spots, one I just looked at was, above spare tire.
Alot of room above spare, just debating on the weight so far back, we I am looking at several items, compressors, tank, battery, hose reel

I have not found a lot of info on the compressor, they say in the instrutions not to run longer than 20 minutes. It has a thermo shut off and is fused. I think 20 minutes would fill a lot of tires. I think it requires a vertical mount position. About all I know.

 

For the diesel owners, has anyone plumbed the intake for compressor to the pressure side of the turbo, to increase efficiency.
Same way how semis hook up there compressors to increase efficiency.
If hooked to the negative pressure of a N/A engine would be a vacuum and loose efficiency, but do not have to add another air filter.

 

Nope. That would require a huge modification to both the compressor and turbo, two systems which work perfectly fine separate. One is also critical to the truck running while the other is good to have. I'm not going to modify a critical system to enhance a perfectly functioning subsystem.

 

Even the 100% duty cycle compressors are 100% duty at under 100 psi

I was going to add 3 - 1.75 cfm, 100% duty cycle compressors in a 2 stage setup, have pancake tank or a small twin tank.
I am almost done with the airbag setup on ny single 5200 lb axle trailer, will be changing my tandem 6k axle trailer to air also.
Made it all from scratch, just need to pickup some air fittings and mount level control valves.

I have one of the 1.75cfm compressors I been taking measurements on, making into a 2 stage setup would ensure the duty cycle at pressure.

But 10.6 cfm on the napa seems like alot for 12v compressor

 

Just seen
90 amps dram
40 psi, 15 min on 5 min off duty cycle

 

Yes, it's not something I would run without the truck running to keep the battery from going flat. As for the run time, the videos show it refilling four tires simultaneous in a tad over 3 minutes so 15 minute run time is not a problem unless you're filling up for a crowd.

 

Can anyone who has it confirm that it’s oil-less and can be ran mounted on its side?

I’m looking to run it under the coolant tank and have it switched to my Auxbeam 8 Gang, maybe adding a couple fans to kick on with it pointing at the cooling towers? I plan to have my female hose fitting under the hood, forcing me to have the hood open and I will always run it with the engine running.

 

It says right in the specs it's oil-free.

 

Just picked mine up.

Here are the specs that are on the box.

 

Just picked mine up.

Here are the specs that are on the box.

View attachment 420616

The 90 Amps is a big bummer for me because I wanted it wired to my switch panel. But I’ll just get the ARB coupler kit and a rocker switch for under the hood. I’ll use it once a month or so, so I’ll let y’all know if if craps out on my when mounted on its side under the coolant tank.


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I don't see why you wouldn't be able to wire it through your switch panel using a relay to trigger it.

 

Do you mind explaining how I could go about doing this. I have an open 30 amp location on my switch. I’m not too familiar with adding relays.

Thanks!


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Thanks Tom for explaining that. You did a WAY better job at it than I would have. Lol

This guy here in the YouTube video wired in a pressure switch to turn his compressor on below 90psi and off at 120psi. I'm actually doing the same with mine.

You could probably tap your switch into the same wire that this guy did. Wouldn't even need a relay.

 

THE LAST PORTION OF THIS VIDEO IS IMPORTANT FOR ALL WHO OWN THIS COMPRESSOR TO WATCH!!

Whether you want to do the pressure switch mod or not, watch the video starting at 9:30. This guy's compressor stopped working because the factory wiring shorted out! I would highly recommend everyone owning this compressor pull the cover off and check the wiring! 90 amps is enough to arc weld with and can certainly start a fire! It will be the first thing I do to mine when it arrives!

 

Here's a screenshot of the video description if you go to YouTube to watch it. It does mention the issue and that it is back working again. There is a thermal switch built-in.

 

And if you do this mod, and use an 1/8 x 1/4 x 1/4 female tee instead of the 1/4 x 1/4 x 1/4 tee(using the 1/8 x 1/4 x 1/4 tee eliminates having to use a 1/8 to 1/4 npt bushing...one less leak point), you will need to use about a 2" long x 1/8 nipple instead of the 1-1/2" long nipple to for the pressure switch to clear the cylinder head.

 

Or you could just pump this up before you leave and carry it around with you! ;-) (An example of a company allowing its name to be used on a cheap product????)

http://goto.walmart.com/c/404739/56...U2iwUx0Mo36FUkG1CkRRRyG5QE0&sharedid=&affiliates_ad_id=1167790&campaign_id=9383

 

Why not just unplug the wires from the compressors on/off switch, and extend them to your switch? No need for a relay at all.

Or am I missing something? Keep it simple.

 

The compressor is rated at 90 amps. My switch has a fuse panel with a zone rated for 30 amps and then a breaker in line to my battery rated at 60amps.

So now I need to add a relay rated for 90+amps in line to my fuse panel.

Thanks everyone!


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Btw, here's a pic of the pressure switch mod that actually works pretty well.

Need to redo the wires and put some heat shrink tubing to clean it up some.

 

Coming to this thread late. Here is my application for this NAPA compressor:

I need a compressor to air up tires around my place; and, in some cases only vehicle 12v is only available for power. My largest tire is tractor and smallest is lawnmower.

Bought this compressor and with first time use discovered I had to run back and forth from tire to compressor (turn off pump—read gage—turn on pump) again and again until pressure was correct.

So, purchased a wireless remote switch (All knowledge and sources came from YouTube and Amazon.) Now I can turn on or off the pump from anywhere around the vehicle. (Turn it off, read gauge)

Because I’m using the pump as a portable, I wrap the power cable around the base and stow the clamps on ¼” bolts installed with press nuts on the motor shield.