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I hard mounted mine in the Ram box and also hard wired it with Anderson plugs so I can easily detach it if needed.

I was able to use the factory bolts that are already in the ram box and used the drain plug grommet to run the power lines out of the ram box.

Also have parts coming in to add a pressure switch and build a 4 tire inflation kit.
A7767F11-92A8-4290-8986-D5EFE9BD0A47.jpeg
 
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I made a two tire inflation system a couple of years ago. I usually run different pressures front and rear. The only change I would make is I would make my two runs the same length. I have to wait a little bit for them to equal out for a reading. The Schrader valve on the yoke is where I attach the PSI gauge. I can also use the Schrader to fill at a gas station.

2 inflator setup sm.jpg
 
Darkone said:
@AnthonyD1978 how Does that compressor do? I know it has a fairly high cfm rate at 0psi.
Click to expand...

It's been working great over the last few years. Currently using it to air up my 35s. Typically I run ~25psi on trails and then air up to 60/65psi to get the TPMS light to turn off.

The only compressor of this type with a higher CFM is the ARB dual ($560). To my knowledge anyway. Definitely nothing else in this price range ($170),
 
Are you considering adding in a standalone/auxiliary air tank for this? Would it even be necessary?

I'm a novice when it comes to on board air systems so I'm trying to learn as much as I can before I tackle mounting a system in my truck.
 
McHenry2500 said:
Are you considering adding in a standalone/auxiliary air tank for this? Would it even be necessary?

I'm a novice when it comes to on board air systems so I'm trying to learn as much as I can before I tackle mounting a system in my truck.
Click to expand...

Not if you're just airing up tires.
 
BFgoodrich KM3 37x12.5x17
Smittybilt 2781 5.65 CFM hard mounted and wired in my Rambox (modded with standard QD couplers, 100psi pressure switch, Anderson power plug).
No air tank
4 tire inflation kit with ~56ft of 1/4" ID 300psi line.
18:43 to air up all 4 tires at the same time. 20psi to 50 psi. With 85* ambient air temp.

I do this also in 100*+ Arizona heat and the compressor runs without pause.

I normally run 45F/40R psi on the street. 20F/15R psi on the trails. So this normally doesn't take that long by about 5 minutes.
 
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ramblinChet said:
@Brewbud @Hooligan @AnthonyD1978 - I would be really interested if each of you can perform a little experiment for us since you all have different compressors and roughly the same size tires. If you can report to us the following it would be really cool to see your results:
  • tire size and manufacturer
  • air compressor manufacturer and model number
  • air tank size, if any
  • approximate length of hose and diameter
For reference I would like to know exactly how long it takes to air up two tires from 20-55 PSI. If you have a system that hooks up to two tires you can inflate both at the same time and record the overall time. If you can only inflate one tire at a time simply reply with how long tire one and tire two took and we can combine the times. Make sure your engine is running and you are at idle so your compressors have sufficient voltage and let's inflate one front and one rear tire.

I know many of us run different pressures front and rear but since the tires will be "lifting" the weight of the vehicle I think one front and one rear will even the load. After the test you can always adjust to your normal driving pressure because, well...you guys have on-board air and it's easy for you :D
Click to expand...
In the Jeep, Im filling 42" tires from 5psi up to 38psi several times a month out on the trails. I've tried several options over the years, but my solid go-to configuration is C02 (primary) and a ARB Dual compressor under the passenger seat.

You can cut costs by buying a typical regulator and tank, but my Powertank 250psi regulator has been solid for almost 10 years of use. Powertank sells them in a 'kit' with the regulator, handle, and hose. And I picked up two 20# aluminum C02 bottles at my local Welding Supply shop. When its empty I bring it in and swap it for a full tank. (cost is about $19). I got about 3 trips out of each fill. If im out, same hose goes into the port on my dual ARB and get the job done.

Im using Monster Valves on my wheels. (Oversize valves that lets more air in/out)
C02 - 42" tire from 5psi to 38psi = 45 seconds
ARB Twin - 42" tire from 5psi to 38psi = 3 min per tire. (Winter temps no issues, Arizona summers it need to cool for about 5minutes on the 4th tire.)

Back when I had a Viair 440p and 37" tires. It took about 4.5 minutes per tire and it would temp shut-off during the 3rd tire and need to cool down. ARB single pump had the same issue and was 5 minutes per tire.
-Both eventually burned out within a year of use. (Viair told me tough luck, ARB replaced it no questions asked)
 
TonyT said:
In the Jeep, Im filling 42" tires from 5psi up to 38psi several times a month out on the trails. I've tried several options over the years, but my solid go-to configuration is C02 (primary) and a ARB Dual compressor under the passenger seat.

You can cut costs by buying a typical regulator and tank, but my Powertank 250psi regulator has been solid for almost 10 years of use. Powertank sells them in a 'kit' with the regulator, handle, and hose. And I picked up two 20# aluminum C02 bottles at my local Welding Supply shop. When its empty I bring it in and swap it for a full tank. (cost is about $19). I got about 3 trips out of each fill. If im out, same hose goes into the port on my dual ARB and get the job done.

Im using Monster Valves on my wheels. (Oversize valves that lets more air in/out)
C02 - 42" tire from 5psi to 38psi = 45 seconds
ARB Twin - 42" tire from 5psi to 38psi = 3 min per tire. (Winter temps no issues, Arizona summers it need to cool for about 5minutes on the 4th tire.)

Back when I had a Viair 440p and 37" tires. It took about 4.5 minutes per tire and it would temp shut-off during the 3rd tire and need to cool down. ARB single pump had the same issue and was 5 minutes per tire.
-Both eventually burned out within a year of use. (Viair told me tough luck, ARB replaced it no questions asked)
Click to expand...

Nothing beats CO2 for speed and reliability. I've been thinking of going this route and using my on-board air as backup and to inflate water toys.
 
ramblinChet said:
@Brewbud @Hooligan @AnthonyD1978 - I would be really interested if each of you can perform a little experiment for us since you all have different compressors and roughly the same size tires. If you can report to us the following it would be really cool to see your results:
  • tire size and manufacturer
  • air compressor manufacturer and model number
  • air tank size, if any
  • approximate length of hose and diameter
For reference I would like to know exactly how long it takes to air up two tires from 20-55 PSI. If you have a system that hooks up to two tires you can inflate both at the same time and record the overall time. If you can only inflate one tire at a time simply reply with how long tire one and tire two took and we can combine the times. Make sure your engine is running and you are at idle so your compressors have sufficient voltage and let's inflate one front and one rear tire.

I know many of us run different pressures front and rear but since the tires will be "lifting" the weight of the vehicle I think one front and one rear will even the load. After the test you can always adjust to your normal driving pressure because, well...you guys have on-board air and it's easy for you :D
Click to expand...
It is gonna be the weekend before I can get to it I think.
 
AnthonyD1978 said:
Smittybilt 2781 5.65 CFM hard mounted and wired in my Rambox (modded with standard QD couplers, 100psi pressure switch, Anderson power plug).
No air tank
4 tire inflation kit with ~56ft of 1/4" ID 300psi line.
Click to expand...
Just curious, what do you think you have invested $$$ in this set up?
 
McHenry2500 said:
Just curious, what do you think you have invested $$$ in this set up?
Click to expand...

Luckily I got most of it on Amazon so I have my order history. I assume you don't want me to include my wheels/tires.

Compressor - $170
4 tire inflation - $180
Whip hose - $9
Pressure switch - $11
Couplers - $18
Brass fitting - $7
Anderson plugs - $13
Power/Ground cable - $30
Plus time and effort to assemble, mount, etc
Total: $440

I already had crimps, solder, heat shrink, etc.
 
That's actually slightly cheaper than I had assumed. I figured $600ish for the "system".
 
Man, this brings back some memories. Back in 73 duning on the sands of the Oregon coast, I built an air compressor out of a briggs and stratton motor and a refrigerator compressor. Took about 20 min. to fill a tire from 5 lbs to 32. And there were usually 4 of us using it. Mine was the butterscotch one in the front. Good times. :cool:66C44448-2272-4BB1-81E3-875C0BCE67D0_1_105_c.jpeg
 
Just as another option (expensive): VMAC engine driven compressor. They have an option for Hemi 6.4 (70cfm) and Cummins 6.7(40cfm, 70cfm)


www.vmacair.com

UNDERHOOD™ & DTM Systems Application List - VMAC

Sorry, but you do not have permission to view this content.
www.vmacair.com www.vmacair.com
 

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el_barto said:
Just as another option (expensive): VMAC engine driven compressor. They have an option for Hemi 6.4 (70cfm) and Cummins 6.7(40cfm, 70cfm)


www.vmacair.com

UNDERHOOD™ & DTM Systems Application List - VMAC

Sorry, but you do not have permission to view this content.
www.vmacair.com www.vmacair.com
Click to expand...
Judging by the installation manual (best ive ever seen) I can already tell its going to be expensive! Have you got a quote? I didnt see any prices on their website.
 
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