Mind you I don't know too much about air compressors other than how to turn it on and plug my impact wrench in or air up my tire, but they do make compressors with built in gasoline (and I assume other fuel) generators, haven't bothered to look into screw compressors. Would something like this with a separate air storage tank work with some engineering?
http://www.maxtool.com/ingersoll-ra...ne-30-gallon-horizontal-compressor-25-0-cfm-s
Sorry, didn't see GW mentioned them above before I replied.
http://www.maxtool.com/ingersoll-ra...ne-30-gallon-horizontal-compressor-25-0-cfm-s
Sorry, didn't see GW mentioned them above before I replied.