i blast car stuff with a185cfm compressor but its a diesel. if your buying a gen set to run a compressor, just buy a diesel compressor. 185 will do anything up to a #4-ish tip which is overkill for car stuff. your going to spend a small fortune to buy a electric compressor that big. plus the two? or three? phase you need on top of that. (not an electrician so you would have to research that stuff)