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Old 03-22-2009, 10:46 AM
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electric fan vs flex

Hi
I have a fox mustang 79, I changed the engine, the 4cil to an 8cil 302.
My question is> I have the stock radiator with a electric fan 1800cfm, but the motor get hot. I[m running without the flex, wich is betters?
Thanks!

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Old 03-22-2009, 11:17 AM
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A belt-driven fan will almost always move more air than an electric. You are crippling that cooling system by making it try to cool twice the engine with little components. Get a V8 radiator and fan (with shroud) in there.
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Old 03-22-2009, 05:31 PM
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Fan

Later 5.0 Mustangs used electric fans and work well, one of the best to use is the dual fan from a V6 Taurus.CLICK on this:http://www.fordmuscle.com/forums/coo...tric-fans.html Sorry, but a belt driven fan moving 3400 CFM would have to be HUGE
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Old 03-22-2009, 07:13 PM
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Quote:
Originally Posted by JeffB
Sorry, but a belt driven fan moving 3400 CFM would have to be HUGE
Respectfully disagree... electric fans are rated at free-flow. That 3400cfm in front of a radiator is lucky to move 1700cfm. Many belt-driven flex fans are rated at 3200 cfm or more at a mere 1800 rpms, so they move tons more than electrics.
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Old 03-23-2009, 02:36 AM
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I agree with Curtis. I don't have room for a belt fan and am using a 3000cfm electric puller for my sbc 350 in a Willys Wagon 2wd Streetrod. During the hot weather I just can't move the air enough and wish I could go back to a belt fan but there is no room currently. An aluminum radiator is coming soon with the proper shrouding should solve my problem? I personally like the light weight plastic fans. They really move the air at idle and flex flat for high speed running. They are rated for 8000 rpm. Upgrading to a V-8 Radiator will definitely make a difference too! Just a thought, try it you might like it? Good Luck, Cooling is critical in all applications!
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Old 03-23-2009, 07:59 AM
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A mechanical fan combined with a good fitting shroud will out perform any electric fan hands down.

Vince
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