Well has some of you now I am not going nuts $$$ wise painting the race car. Plan Is to sand down car spray paint primer gray. Then do some mask work and do flames in front grabber green "spray Paint" and then finish car off black with guess what "Spray Paint". I now its not good at 25 degrees to be out there painting but can someone give me a window of what is acceptable?

It should say right on the can

wow no shit I never actually looked at a can all the times I have been painting

You'll probably want it above at least 40 degrees. Most oil based paints (which are what most spray paints are) usually want above 50 to be ideal, but will work as low as 40-45...

If you can't wait that long, at least make sure the surface you are painting is warmer than the air if at all possible.

Above 50. I've tried it several times in teh garage cold. It will NOT work.. I'll usually fire the garage heater up for a few minutes and heat the item to be painted, and the can of paint (shake it several times). Not so hot that you can't hold it, but so that it's warm against your face.* Once the paint is on there, and the item is warm... By the time it cools off, it should be dry enough. That's how I did that air cleaner lid I posted in my Cougar Project Log, and that was with the same kind of paint.

Doing an entire CAR? You're going to have to heat the garage up somehow.

* Please don't be a dumbass like other people we know like when I said "use starting fluid, but not a lot, to seat a tire" Use common sense here.

hahahaha markkkkk

What I've tried and seems to work pretty good is putting the can of paint in a bucket of hot water. The heat from the water increases the pressure in the can therefore allowing you to get a better flow of paint. Doing this in normal weather seems to be helpful as well. It seems that the paint doesnt lay down as thick when the can is warm so it gives you a better / more even end result.

it was early still when I posted

From my experience, 60 or above for thick paint like rust-o-leum, thinner paint can probably go a little colder. Low humidity is good too.

As Paul said, heat the garage with a kerosene or propane heater if you can get your hands on one. Keep the paint in the house before you use it to get it warm. You want a warm surface in addition to warm air, so warm the garage for a day or so to get all the metal warm.

* Please don't be a dumbass like other people we know like when I said "use starting fluid, but not a lot, to seat a tire" Use common sense here.
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I watched my father seat tractor trailer tires with this method and it's quite affective.