Fan clutch
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Intermediate
Joined: Jun 2012
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Fan clutch
I'm restoring my 1974 and does have AC, can I do away with the original 7 blade fan and fan clutch? And replace with a flex fan and spacer? Or do I have go back with a fan clutch. Please advise.
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From: Kannapolis NC
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From: Southbound
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Drifting
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From: new iberia la
Depends on the Flex Fan you chose.. the old cheap aluminum version, NO.. But a more modern Stainless Steel Flex is rated for about 9000 rpm, I don t think you can hurt it. And tho a Clutch fan releases at higher rpm, , there is still 20-40 % drag depending on which you use. Standard, HD or Severe Duty.. I run a SS Flex on my 525 HP Stroker with air and Auto and it gets 112 * here ... never had any overheating issues even in slow summer traffic with A/C blasting. The blades need to be at least 1/2 inside shroud....... BTW.. I use the Flex-A-Lite SS High RPM fan , I just looked , its actually rated at 10,000 rpm... theres no one on this forum with a Corvette that can break it.
Last edited by fishslayer143; Mar 23, 2016 at 09:08 AM.
