On Board Air Compressor.....

[hammersley]

I know a there have been some onboard Air compressors done..... I want to install some ARB Lockers front and rear - and they need a compressor. They have an electric one but was wondering how much it costs to have one run off the old Cummins - or is that a freaking nightmare?????

 

[mcsinfl]

When I was researching a year or two ago, I found one belt driven system. There were threads on this forum that helped me piece it all together. If i remember it was a york compressor, which i believe was a fairly common compressor years ago. Only one company that I found was making the mounting system. The compressor was somewhere in the $400 range new retail. The mounting bracket (cast), belts pulleys etc were around $800, so the total was close to $1,200. Too rich for by blood so i never pursued it, but I did walk away with the impression that someone that was handy in the shop could probably piece together the components and make the mounting bracket for a couple hundred. If you do a search on compressors on this site, I think most are regarding 12v compressors, but there are some posts regarding belt driven within

 

[EricBu12]

Here is the kit for the Dodge cummins... it's over $1000

::Kilby Enterprises::

This is the 3rd gen kit... . same price

::Kilby Enterprises::

 

[hammersley]

wow - neat but $$$$

Here is the kit for the Dodge cummins... it's over $1000



::Kilby Enterprises::



This is the 3rd gen kit... . same price



::Kilby Enterprises::

Anybody done one of these?? I mean a picture sure would be great... ...

 

[Adventure Bob]

I have done business with Kilby for Jeep applicaitons and its well worth it. I took a look at his kit for the Cummins and it seems very complete to include the tank and NEW compressor and clutch pack. You can find compressors cheaper, or you can go used but be careful: most of them were specifically made for auto AC. They put out 4 to 6 cfm tops and most used ones are on the market for a reason. The ones Brad sells are putting out around 8CFM. On my jeep at 3800 (remember it's gas) I put out 7. 4CFM. Ebough to run air tool swithout a tank. I have arbs as well and run a loww pressure side of the air system for them they dont need volume just pressure. I run that side of the system at 90 psi. The highside triggers from 110 to 120 on the pressure switch.

I'd like to put one of these on my RAM as well but have other mods I need to get done first.

 

[seafish]

I have also been looking into compressors to supply air bags and pxrb and who know what else.

The concensus on the Kilby is that it is an excellent and well made continuous duty, belt driven compressor.

Oasis makes a continuos duty, mil spec electric compressor that is also excellent, but also just as expensive as the Kilby,

ExtremeAire is an excellent contniuous duty (150 psi)compressor, at about half the price of the Oasis and Kilby.

Air Zenith had some problems early on with bad parts for awhile, but they took care of their costumers very well and made good on the bad compressors. It is also a well made, fast, and easily reparable, electric compressor, and is quite affordable compared to the others.

ViaAir has a whole line of HD and Medium duty compressors that they have been making for a long time, and while they eventually may need replacing, so can anything and they are an GOOD value;



The most important thing to think about is pairing CFM and DUTY Cycle with tank size and actaula air needs.

ALSO, the more CFM and extreme duty cycles mean bigger motors and wires and physical sizes, except for the Kilby, which of cours runs off our beloved CTD

I will probably buy an ExtremAire or Air Zenith. Kilby only if I win the lottery. :-laf



Here are some links for info--



http://www.air-zenith.com/pdut_detail.asp?cateid=9&id=5

VIAIR 400 Air Compressor, VIAIR 400 Compressor, Viair 400C, Viair 400H, Viair 420C, Viair 450C, VIAIR 450H, VIAIR 460C Air Compressors

01. ExtremeAire 12 volt Compressor

Oasis Manufacturing

 

[BarryG]

I have been using the extremaire for about 100k now and while it doesnt see heavy duty use it has never let me down. I use it for the horns, filling tires when traveling off road well when I get back on road, and most importantly filling my float tube for fishing as well as other miscellaneous uses. I havent used it for air tools but have used it for just about anything else you can think of and again never let me down. It is definitely nice having your own air source for your truck and trailer when out on the road. You can conveniently tailor your tire pressure to the road conditions eg off road, dirt/gravel washboard and pavement or just bumping up the pressure to accomodate a heavy load. Extremeaire brand or not onboard air is nice.

 

[Tinman]

The units above are all viable 12v options. I'd like to add that Warn now has some compressors. Their biggest one is pretty nice, but I couldn't find a place to mount it, so I when with the single piston version on the frame rail of the 06. With a 2. 5 tank it has a hard time with air tools. I have the Kilby version on the 01 and it kicks butt but I didn't use it enough to justify the cost so I tried something different on the 06. It remains to be seen if I made a good choice. You get what you pay for.

 

[seafish]

I have been using the extremaire for about 100k now and while it doesnt see heavy duty use it has never let me down. I use it for the horns, filling tires when traveling off road well when I get back on road, and most importantly filling my float tube for fishing as well as other miscellaneous uses. I havent used it for air tools but have used it for just about anything else you can think of and again never let me down. It is definitely nice having your own air source for your truck and trailer when out on the road. You can conveniently tailor your tire pressure to the road conditions eg off road, dirt/gravel washboard and pavement or just bumping up the pressure to accomodate a heavy load. Extremeaire brand or not onboard air is nice.

Barry, where did you mount your extremaire and tank?? Got pics??

 

[HPetrat]

I currently run a Viair continuous duty 12V mounted to a stainless steel platform on the frame rail just behind the T-case. The compressor feeds 2 - 3 gallon tanks @ 200 psi each.



I use the air for horns, tires, tubes some air tools when the shop is not nearby and future air bags (soon I hope).



I have had the system in use for 2+ years and only issue has been a defective pressure switch and 1 sticky safety blow-off valve.



Definitely one of the handiest mod's Ive ever done



HP

 

[Shelby Griggs]

One that has been recommended to me is 12-Voltair, Air Where And When You Need It



That will probably go on the next truck I buy.



SHG

 

[cArNiVaLwOrKeR]

Where are the pics?



JoeLee

 

[Bob4x4]

I used 2 air tanks off big rigs on the 94,it gave me enough volume to remove all 4 tires using an impact with out the compressor if it should fail at an inopportune time. They were mounted under the bed one each side between the frame and sheet metal. On the 05 I have a power tank semi-pemanatley mounted in the bed for it's speed of operation. For sand trips I also bring a 1/3 hp 12volt compressor. The power tank will only air up about 18 37" tires from sand pressure to hiway pressure.



Bob

 

[Spooled-up]

This may not be what you're looking for, but I would think that this system might work pretty well. It's a high pressure tank filled to 900psi. You can get an adjustable regulator with it that you could set to whatever pressure you need. Maybe you could use a quick disconnect and connect it to your lines to the lockers and whatever else you need it for. No wiring, no pump to fail, and you can refill it at any welding supply, fire extinguisher, paint gun, or beverage supply shop.



Just an option:



https://ultimate-air. 3dcartstores.com/Specs_ep_35-1.html



Just a thought.

 

[DShore]

Here are some pictures of the plug-n-play unit and the air tank from Chassis Tech mounted under my 1998-1/2 Dually 2WD. Use it to run my air ride and a separate plug under the hood to pump up tires, run air tools, etc.

 

[JKloppe]

I get a big discount from Outback Extreme, pm for pricing.



I have a extremeaire magnum and its fast, the motor never slows down. I will get some pics of the install.

 

[seafish]

I get a big discount from Outback Extreme, pm for pricing.



I have a extremeaire magnum and its fast, the motor never slows down. I will get some pics of the install.

Would love to see some pics when you have time. Will also pm for a price on the Outback Extreme (non magnum); TIA

 

[Willys]

I built my own version of the kilby style bracket using a kilby pulley on my 12V. IIRC I have between 300 and $400 in it, including air horn. I used junkyard parts wherever possible. This was 4-5 years ago, and 80k or more miles. It puts out enough air to run an impact, and I've even run an air chisel intermittently with the throttle bumped up. Parts have gone up in price lately- I am looking for parts to build a setup on my other truck. You could still probably get away with ~$600 in it if you go with used parts and buy kilby's starter kit. It takes some leg work but you can get the tank and compressor at the junk yard. It is true that there are other displacement yorks, google york and on board air and you should find how to tell the different pumps.

::Kilby Enterprises::

 

[Adventure Bob]

Oasis is an elctric version of the venerable York that Kilby uses. In a sense your trading engine driven for electric motor driven. Either way is good depending on your needs. An Oasis can be wired to run without the engine on. The kilby setup requires the engine to fill your tanks and depending on size you may not get much use without running the engine. Im prbly going to go with an electirc and a big tank on my truck. There seems to be lots of space to mount a pretty good sized tank, so a partial duty like a viair could be used.