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Author Topic:   Fan and HP loss questions
Mpcoluv
Gearhead

Posts: 1341
From: Charlotte NC usa
Registered: Apr 2001

posted 03-05-2002 08:48 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
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

posted 03-05-2002 09:14 AM     Click Here to See the Profile for capri man   Click Here to Email capri man     Edit/Delete Message   Reply w/Quote
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

posted 03-05-2002 10:50 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
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

posted 03-05-2002 11:24 AM     Click Here to See the Profile for Scott (69Mach)   Click Here to Email Scott (69Mach)     Edit/Delete Message   Reply w/Quote
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

posted 03-05-2002 12:16 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
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

posted 03-05-2002 12:20 PM     Click Here to See the Profile for Hemikiller   Click Here to Email Hemikiller     Edit/Delete Message   Reply w/Quote
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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