I had too. I have a smaller fan on the other side that we used in place of the big one. (While we are on the fan issue how much should I sell my stock fan for, I want to set a reserve on eBay for it...sorry to post jack) I was being a ass in Dallas one day trying to get rid of some gas to get the car into a show and I was running it kind of hard in the head. It did start to over heat on me but I think any cooling system would have over heated. I'm going to replace the whole radiator with a smaller more efficient one. (So I can get a intake filter without having a problem clearing the fan)