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Author Topic: Clutch Fan disengage speed  (Read 2353 times)

joesauer

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Clutch Fan disengage speed
« on: September 22, 2010, 04:43:08 PM »
Does anyone know the approximate RPM that a 68 radiator clutch fan disengages.  I'm converting my 68 350 no air to a Vintage Air setup & will be installing the ac radiator & shroud.  Considering a 7 blade clutch fan instead of an electric.  Thanks.
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JohnZ

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Re: Clutch Fan disengage speed
« Reply #1 on: September 23, 2010, 03:07:20 PM »
Although a viscous fan clutch never completely disengages, they're calibrated to go to their minimum engagement level over 3500 rpm.
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'69 Z/28
Fathom Green
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