The Stovebolt Site Forums The Shop Area Paint and Body Shop Air compressor Question

I've done a couple searches on this but got no results, so I am going to ask. What kind of difference is there when going from a 3HP motor to a 5 HP motor on a 60 gallon air tank. And what or is there an advantage to having more than one cylinder. I want to get a compressor to run a sandblaster. I read on a thread I can't find that someone was using a 60 gal. and it worked well. I sort of understand the PSI at pressure concept, but the motor capacity relationship makes a big difference in cost.

Thanks