Quote:
Originally Posted by Bad70sbchevy
I guess I'll have to be different. I have a flex fan on my truck and that thing can pull some air. My engine barely gets above cold even on the hottest florida afternoons stuck in 5:00 traffic. Mine can definitely move more air than any clutch fan. Yes, they do flatten out at high rpms but unless your turning 5000rpm, it will still pull air. The only complaints I hear is if they come apart they can do some damage but even a regular fan can do that. I looked at mine and it looks pretty stout. Thats just my two cents.
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I've also had good luck with flex fans. Good ones with stainless steel blades from NAPA, and I think quality has something to do with the ones that fly apart, I have also seen the holes through the hood before. I run dual 13.5" Flex-a-lite fans now, with no problems at all.