Bad radiator? Was the old one all crudded-up inside or something?

 

my guess is it wasn't burped properly.

When ever i empty or change a radiator i try to get as much coolant out as possible for the head.
-using compressed air

Then when the radiator is installed fill till topped off.
-leaving the cap off

Then start the car let it warm up and add coolant as needed
- wait for the thermostat to open up
- fill until you can fill no more
- put a little coolant in reserve don't fill
- put cap back on

Even with doing the above some times you still get air on that first drive and if it starts to overheat
pull to a safe area to stop and let it cool down.

If you see a leak right under neath the coolant reservoir when its cooled down, it means you have to much coolant in and the reservoir is bleeding it out.

 

Compressed air?! I'd just set it on a towel or something for a while. . . but then I'm not too picky about the outsides of stuff being spotlessly clean.

 

I actually did all of the following steps, I think? Haha bet anywho the car hasnt overheated and Im pretty sure the rad was the culprit. And plus I like the beta 2 radiator better, the fans on that thing are amazing. Much better than the stocker fans on the beta 1 radiator. Thanks for your guys' advice, if it acts up again Im sure Ill make another post. *sigh*