Probably 3 HP is the smallest, mines a 3 1/2. I have a water separator on the tank. It helps if you drain the tank after each use.
I have some buddies in the body shop biz that give me tips and advice. I just kinda started spraying back when the paint wasn't so expensive, and I used to spray some real junk so I didn't really worry about it coming out bad. You basically have to get the paint/air mix right so it isn't too dry or too wet. You can reduce it down too far so it runs. You just gotta mess with it. I try to get all set up before starting and spray some cardboard or paper to see where I'm at before laying it on the car.
This new gun helps. very little overspray and it doesn't fog the whole garage, the paint that is sprayed sticks to the car. Very sweet
. I've painted using a high pressure siphon cup and after about two minutes you couldn't see much less breathe. That's why you see those things for sale now at Harbor Freight for $5.99.... I don't think anyone uses them anymore.
Hey Flip... I've seen some very nice rattle can jobs, it just takes more work. I used to have a neighbor back in the old "hood" who had a Gremlin and a serious drinking problem. After leaving the bar one afternoon he stopped at a local discount store and they had foo foo cans on sale for a buck each. He picked up about 10 cans of forest green, drove home and proceeded to paint his Gremlin in the driveway. The problem was... he didn't mask anything off and there was about a 25 mile an hour wind that day. Everything got painted, glass, chrome, bumpers, the neighborhood cat. It was a real mess. Gremlins don't look good in forest green either. Ahhhh, the good old dazes..