Quote:
Originally Posted by AG
I have a Hayden 2797 and it has a second slot. I was running it with a factory 7 blade AC fan in my ,72 LeMans with a 9:1 455, stock 3 core radiator and a 160 F Tstat. The car would creap up to 200 idling in traffic. I replaced that set-up with a 7 blade flex fan and the car would only get up to 175 on a 90 F day in any driving, highway or traffic. I changed the Tstat to a 180 F and it doesn't get much warmer, up to 180 on a 90 F day after running on the highway.
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Just to clarify, you removed the 2797 clutch and went with a direct drive 7-blade fan? Or did you add the flex style fan blade to the clutch? If direct drive, how noisy is the fan at highway speed?