On board air compressor.

[Charley]

If anybody is looking for a good on board air compressor take a look at "www.extremeoutback.com". They have 12V and belt drive models that will do the job.



Charley

 

[nibranam]

pumps

Thanks for the post Charley.

I was looking into pumps last year when I suffered two flats. I ended up with an Interdynamics Inc. "TruckAir". It is not an onboard unit but does pump my tires to 50PSI in less than 15 minutes. It has a larger piston than most and a fan to keep it cool. (I bought mine from Checker Auto Parts)

Here is a sight where you can view the Interdynamics Inc. Pumps and a few other sights I came across.



http://www.id-usa.com/tires.htm



http://reality.sgi.com/rogerb/4x4/CheapTricks/OnBoardAir.shtml



http://www.4wdworld.com.au/huricane.htm



http://www.4wdworld.com.au/bullet.htm



I drive a Y2K 4WD short bed which is stock except for the Westach dual EGT/Boost gauge.

 

[MMiller]

Did you ever go to cummins and check into a air compressor that runs off the timing gears, like they do in an over the road trucks with air brakes? I would think the 5. 9 would be in a truck with air brakes in some application. It might be a little pricey at first but in the end I think it would be a better deal. I am going to try this route when funds and time allow to do the investigating. let us know if this is possible if you look.

 

[illflem]

MM, Cummins has a compressor for the 5. 9 as you described, about $1200. Problem is that it goes in the spot occupied by the vacuum pump and won't fit even if the vacuum pump is removed, there just isn't enough room. In other words it won't work on a Ram.

 

[pcorssmit]

I was looking under the hood of mine the other day, and I think you could fit a York on the pass. side of the engine if you relocated the coolant overflow. The York is the compressor of choice of all the guys with on board air in 4x4s, since they have a seperate oil resivoir instead of relying on the oil in the refrigerant, and they put out lots of air. You'd have to rig up some kind of pulley set up, some guys weld a traditional v-belt pulley onto a serpentine pulley on the newer Jeeps. Lots of info on these setups on the 4x4 boards.



Pete

 

['956Wheel]

www.onboardair.com in Burbank CA, The owner has a 3500 V10 witha belt driven York... wants to do a Cummins.

 

[Shelby Griggs]

Cool on board air setup

This is by far the trick setup for on board air. Afaid to see what it would cost, but this seems to be a well designed setup.



Shelby

 

[tgbol]

Shelby

The VMAC air compressor will supply enough air to run a small jack hammer. It is used on trucks for impact tools and tire service equipment.

 

[swamp rat]

VMAC finally got around to sending me some info the other day on a mini-CD rom, but it had no more info than one could get from th eweb site. The real nut torquer is they refuse to make a kit for any NON-24v Dodge Cummins truck. I aksed two different people and they both flat said NOPE! no 12valvers allowed. No reason whatsoever.

 

[BK]

Charley I aggree, I've been spending the better part of the year looking into what to buy... .



I picked up the ExtremOut back 12V compressor last month with my unlce sam check. And I've been collecting the pieces and wiring to install it.

I tested the compressor by going through a normal cycle of how I fill my tires. .



The extreme Out Back Compressor is sold "as one of the" fastest and highest pressure 12v units on the market (145psi). Also one of the very few rated for continues duty. Great big air intake filter, washable. It's also sold as a replacement for the Thompson model on the Hummer.



I have stock 245 right now. When I tow & carry a load of wood and water I run the tires full up to 80psi. I tow the same load on to the beach and normally deflate to 20psi for one beach and 10psi for another beach. I also deflate the trailer tires to 20psi.



I tested the time to inflate my tires from 20lbs.

(no air tank)

To get to 40psi took just under 1 minute.

To get from 40 - 50psi, took about 1minute.

50 - 60 about 1. 5 minutes

60-70 another 1. 5 minutes.

70-80psi almost 2 minutes

Did it a few times, times range from 6-7 minutes to fill the tire from 20 - 80psi.



Extreme Outback comments that these compressor really outperform the other brands at pressures higher than 50 psi. I was suitable impressed with the times under 50psi. And compared to waiting 25 - 30 minutes /per tire to get to 60psi, I'm happy.



For now and for the tests I took a spare Warn winch power connector and wired the compressor to that so I can use it. This thing draws as much as 50 amps at the higher pressures!



The very 1st time I did it, I had just screwed my hose into the head. The head got hot when I approached the higher pressures, the hose became soft and blew.

I made a cooling line and feed that into a filter separator.

The head starts to get hot ("cant touch this" - hot) above 70psi.



After I installed the "cooling & filtering system" I had no problems.



I plan on installing their 4. 5gallon tank and such.

gotta weld up some brackets and mount it to the bed's mounting brackets. I'll mount the compressor in the bed, in one of the corners behind the fender well. If that works out well, I'll put another 4. 5gallon tank under the other side of the bed.



It came with a 30 day - money back - no questions asked - guarentee. So I figured what the heck. It's a keeper.



I'm impressed. I've eaten a lot of the 20 - 60 dollar compressors. I'm very used to their speed and this is another whole world... of course I had to pay the cost of the ticket to get their.



Bob

 

[HWhitaker]

AIR COMPRESSER

Check out BLOW JAX Compresser 180psi coutinious duty cycle 3/4 hp. I run one for train horn and tires works great . Paid $349. 99 The compressor is mainly used on lowerd trucks cars for lifting,lowering.

 

[tjpatte]

I mounted a QuickAirII next to the passenger side battery. It would air up my 33's from 20psi to 45 in about 2 min. I know this isn't really quick however, I can't seem to find a way to mount a York under our hoods? I have pictures if anyone is interested.



Tom

San Diego