Why don't you just get an air tank and strap it down in the bed when you go offroading? Fill it with your home compressor.

 

That was the first thing I thought of since I have a large craftsman compressor at home. But looking into it even a ten gallon tank will probably not be enough, and since they would probably need to go back up to 60psi from 20 or so, the tank will loose the pressure needed to flow from the tank to the tire pretty quick. I think someone told me I would get lucky to get two or three tires filed up with that, and even then not to 60psi. A CO2 tank may do the job, but they are a little more expensive, and would have to get it filled with the co2 somewhere.

 

On board air compressor such as:

http://www.viaircorp.com/OffRoad/

No nothing about it other than the first hit on a google search

 

Ruffin-it I am not sure how much you were wanting to spend, but there are pure or true sine wave inverters out there that will run your compressor.
http://www.google.com/products/catal...ed=0CHwQ8wIwAA

To determine how large of an inverter you need you will have to find the start up amperage draw of your air compressor and then multiply that by 120 V to get your wattage. Make sure that number is lower than the rated load for your inverter and you should be good.

 

I wouldn't mind spending a bit more, but they do jump up in price. I did however find this 1000watt pure sine inverter on sears website says its like $270, but right under that its offered from another company I guess for $94. , not really sure why, I'm looking onto it.

 

Found a few on ebay around the price range I was looking for, one is a little less wattage rating though...$70 300watt/600watt peak. Which is close to max of the 2amp (240watt).
http://item.mobileweb.ebay.com/viewi...id=46634142791

Another $73 500watt/1000watt peak, but its 220volt.
http://item.mobileweb.ebay.com/viewi...id=46634142791

Another one, 110v 500/1000watt
http://item.mobileweb.ebay.com/viewi...id=35127981269

Might purchase one of these if they will get the job done. Do the pure sine wave inverters have any drawbacks, compared to regular ones other then price?

 

Don't forget HF for this kind of stuff...

http://www.harborfreight.com/catalog...yword=inverter

 

I said screw it and returned the compressor and bought a mv-50 high flow compressor strictly for blowing tires and stuff up. Besides most pancake compressors have a smaller cfm rating then the high flow.