Author
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Topic: Fan and HP loss questions
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Mpcoluv Gearhead Posts: 1341 From: Charlotte NC usa Registered: Apr 2001
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posted 03-05-2002 08:48 AM
Hi guys, I have a question for a few of you experienced guys. I am currently running a 5 bladed non-flex engine fan on my 372C. I think this fan is from a 351M truck or something. Anyways, I feel this fan is really sucking some HP at over 300 rpm. I still want a belt driven fan, so should I go with a flex fan of a fan clutch? Will the clutch bolt to any fan? I currently used the 24" 428CJ radiator so I have no current cooling problems.
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capri man Gearhead Posts: 7611 From: doerun, ga. Registered: Nov 2000
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posted 03-05-2002 09:14 AM
have you consisered the moroso electric waterpump drive. it will run your pump and your fan with no drag on the engine. only about $70. good luck------------------ mike r racing is real everything else is just a game. 81 capri-7.56 @88mph 1/8 1.56 60 ft.
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Mpcoluv Gearhead Posts: 1341 From: Charlotte NC usa Registered: Apr 2001
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posted 03-05-2002 10:50 AM
quote: Originally posted by capri man: have you consisered the moroso electric waterpump drive. it will run your pump and your fan with no drag on the engine. only about $70. good luck
I am not a big fan of electric driven waterpumps on the street. I need to stick with a belt driven pump and fan. Thanks, Jim
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Scott (69Mach) Gearhead Posts: 796 From: Walnut Creek, CA USA Registered: Jun 99
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posted 03-05-2002 11:24 AM
I put a flex fan on mine. It gets pretty flat as the rpms rise so it isn't working as hard (less wasted hp).
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Moneymaker Administrator Posts: 27499 From: Lyons, IL, USA Registered: May 99
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posted 03-05-2002 12:16 PM
Aluminum 6 or 7 blade flex fan is the hot set up on the street. A bit noisy at low speed but more dependable than a clutch fan. ------------------ Alex Denysenko Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member NHRA and IHRA SS/LA National Record Holder '00, '01, & '02 Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 Part time secret agent license #0089 US Class Nationals link
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Hemikiller Gearhead Posts: 667 From: Killingworth, CT Registered: Feb 2002
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posted 03-05-2002 12:20 PM
My favorite setup is a GM electric fan from a front drive 2.8 V-6 Cutlass Ciera, or it's clones. They have a nice flat plastic shroud, and molded in mounting tabs. I use a tranny cooler mounting kit, and some foam tape on the edge that contacts the radiator. Use a Perma-cool or equivalent switch. Works great for me. If the fan motor craps, it's available at the local parts store. Never been fond of the aftermarket electrics, I felt they were overpriced and lousy quality. The fans are avilable from the boneyard for @ $20 or so, switch is $20. I hate flex fans, noisy, and I have ENOUGH scars already. If you need any more info, drop me a line.
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