Good Sam Club Open Roads Forum: Onboard Air Systems (Updated w/ Pics)
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adamis

Northern California

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Posted: 08/24/21 06:20pm Link  |  Quote  |  Print  |  Notify Moderator

Yup, the belt driven unit is quite the beast. I had actually looked into it since it had massive airflow. It is even reasonably priced to boot. If you call the company, I think they offer mounting kits for the unit based on your model truck. Many of the Super Duty trucks (not all though) were designed for dual alternators so you could place this unit in that position.

That being said, having just spent 3 days under my truck, I can tell you there is a lot of other things that have to be wired up to make it all work. I am putting in air chucks in the front and back of the truck and that all connects to the 4 gallon tank that sits near the middle. Creeping around under the truck has not been very pleasant when all of the years of dirt decides to fall in your eyes.

That being said, I am nearly finished with the project. Just need to install the rear chuck and then tidy a few others things up. Looking forward to getting this one wrapped up!


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JoeChiOhki

Sauvie Island, OR

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Posted: 08/25/21 12:33pm Link  |  Quote  |  Print  |  Notify Moderator

adamis wrote:

Yup, the belt driven unit is quite the beast. I had actually looked into it since it had massive airflow. It is even reasonably priced to boot. If you call the company, I think they offer mounting kits for the unit based on your model truck. Many of the Super Duty trucks (not all though) were designed for dual alternators so you could place this unit in that position.

That being said, having just spent 3 days under my truck, I can tell you there is a lot of other things that have to be wired up to make it all work. I am putting in air chucks in the front and back of the truck and that all connects to the 4 gallon tank that sits near the middle. Creeping around under the truck has not been very pleasant when all of the years of dirt decides to fall in your eyes.

That being said, I am nearly finished with the project. Just need to install the rear chuck and then tidy a few others things up. Looking forward to getting this one wrapped up!


I will inquire after them, due to the age of my pickup, I suspect that they do not offer a part (early 90s Dodge Gas engine) and would need to fabricate one myself.

I personally plan to add, even if far less potent, an air system with tank and compressor to my truck for the air suspension and to drive a new air horn to replace the original aftermarket one that uses a small electric pump (All of which has long since failed, it was after a Harbor Freight horn kit [emoticon]).


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mellow

Salisbury, MD

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Posted: 08/26/21 08:06am Link  |  Quote  |  Print  |  Notify Moderator

How are you distributing the air to the front and back?


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adamis

Northern California

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Posted: 08/26/21 08:29am Link  |  Quote  |  Print  |  Notify Moderator

To answer JoeChiOhki first... If you are just adding the system for airbags and an airhorn, the belt driven compressor is overkill I think. My truck already had two air compressors, one for the exhaust brake and one for the airbags. You don't need large pumps for either of these items. Guys using the belt drive units are using them for air tools and inflating large off-road or farm tires. I think you would be pretty happy with an electric pump and you would have a lot more flexibility on the install. In my own case, I am considering trying to remove the two other compressors to clean up wiring and such but I will likely leave things as they are for now because I'm running out of time to spend on this project as it is.

To answer mellow's question... I didn't take pics of it just yet, I will try to do that today and post but the 4 gallon Air Tank sits just in front of the rear wheels. From the tank I have a T valve with compression fittings and 1/4" DOT approved 300PSI air brake line. I snaked the line to the front and back of the truck where I put together small mounting brackets, one that sits under the license plate on the front bumper and one that sits right next to the hitch on the back. Each of these brackets has an air chuck in it. Additionally, I purchased a regulator and a Y splitter along with two 25' hoses. This way when I inflate tires, I can inflate two of them together at the same time and ensure they are exactly the same pressure.

adamis

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Posted: 08/26/21 09:53am Link  |  Quote  |  Print  |  Notify Moderator

Pics of the airlines...

[image]
[image]
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[image]

mellow

Salisbury, MD

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Posted: 08/26/21 12:50pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks! That is an awesome setup. I would love to have something like that for when I come off the beach for airing my tires back up.

Speaking of which, I am loving these crossfires, I can air up/down both tires from 1 valve stem, no more reaching in to the inner tire.

[image]

adamis

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Posted: 08/26/21 12:56pm Link  |  Quote  |  Print  |  Notify Moderator

I have looked into the crossfire's a few times and am still considering. It is such a pain to air up the inside tire. In the past when I used the air fill up station on the beach where the guy had one pressor for eight vehicles it could take an hour to get all the tires filled up. Holding the air chuck to the inside tire got very tiresome (no pun intended). I haven't deflated my tires to air them back up to see how long it takes but I'm guessing it will be much shorter than an hour now.

mellow

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Posted: 08/26/21 12:58pm Link  |  Quote  |  Print  |  Notify Moderator

If anything now you can sit at the pump and charge people for air [emoticon]

adamis

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Posted: 08/26/21 10:20pm Link  |  Quote  |  Print  |  Notify Moderator

So I managed to do an air up test today. I deflated one of the dually tires to somewhere under 10 lbs and then reinflated the tire. My tire size is stock tire size for a Super Duty (non 4x4 if that makes a difference). I managed to inflate the tire from less than 10psi to 70psi in 3 minutes and 30 seconds. Not to shabby!

I think actually it could be much faster as I am using 1/4" line and have about 40' between what is under the truck and the air hose itself. I am fine with this as I wanted 25' air hoses (two) that could be easily stored in a small bag that fits under a seat. Overall very happy with the work and I am looking forward to using it on our next Pismo Beach Oceano Dunes trip over New Years.

JoeChiOhki

Sauvie Island, OR

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Posted: 08/27/21 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

adamis wrote:

To answer JoeChiOhki first... If you are just adding the system for airbags and an airhorn, the belt driven compressor is overkill I think. My truck already had two air compressors, one for the exhaust brake and one for the airbags. You don't need large pumps for either of these items. Guys using the belt drive units are using them for air tools and inflating large off-road or farm tires. I think you would be pretty happy with an electric pump and you would have a lot more flexibility on the install. In my own case, I am considering trying to remove the two other compressors to clean up wiring and such but I will likely leave things as they are for now because I'm running out of time to spend on this project as it is.


Aye, if I was able to add it, I would expand the setup to include larger tanks and the means to connect impact air tools and what not to the system for field work. It would also be used for airing up and down the truck's six tires (or the tires of a future toad), and so on.

Since its not looking like an straight forward thing to accomplish for now (Larger project than I have the time to take on atm), I planned to scale it back to a smaller use case which only operates the air suspension and the horn and for that a much smaller system will fit the bill.

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