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Author
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Topic: Flex fan vs clutch fan. Which is more hp
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ZEATER
Gearhead Posts: 177
From: Mount Pleasant,IA,USA
Registered: Aug 2001
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posted 06-29-2004 01:32 AM
   
Cooling is not a problem with either on my car just not sure which frees up the most horse.Any tests?
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n2oMike
Gearhead Posts: 2694
From: Spencer, WV
Registered: Jan 2001
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posted 06-29-2004 08:05 AM
I seem to remember reading an article that did dyno tests using different fans. Not all flex fans are created equal! Some ate a LOT more power than the others. They also tested clutch fans, which seemed to be the horsepower favorites. They are also quieter. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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Fastymz
Moderator Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001
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posted 06-29-2004 12:40 PM
It seems like the pitch of the blades and their size would affect power too.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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ZEATER
Gearhead Posts: 177
From: Mount Pleasant,IA,USA
Registered: Aug 2001
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posted 06-29-2004 12:46 PM
I was emailed an article which showed the clutch fan producing almost 9 extra horsepower.When I run the flex fan the car actually runs 170 at idle and creeps up to 185 at cruising speed. I think I'll throw on the clutch fan again and see what the temp does. Thanks for the advice.
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steve'66
Gearhead Posts: 9489
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 06-29-2004 12:47 PM
It is in the archives, here's a link.https://mustangsandmore.com/ubb/Archives/Archive-000024/HTML/20000821-1-001706.html
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Dubz
Gearhead Posts: 1890
From: Manitoba Canada
Registered: Oct 2002
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posted 06-29-2004 01:32 PM
interesting to see that the stock 4 blade was pretty even with one of the flex fans, and better than the rest of themgaining 20hp swapping from a stock four blade to a black magic is pretty impressive [This message has been edited by Dubz (edited 06-29-2004).]
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Big D
Gearhead Posts: 5480
From: WELLS, NEVADA USA
Registered: Nov 2000
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posted 06-29-2004 08:48 PM
If you are looking for HP and helping your engine run smother with less vibration,, Scrap both and put an electric puller fan on the radiator..I had an 18" Perma Cool from Alex with a 2 core radiator and never over heated even in slow traffic on a 100+ day.. My eppisode in Nashville is a whole different story..  ------------------
Don
6T6 Fastback
331 STROKER,, WC T-5
Royal Blue Metallic w/Ghost Flames
http://mustangsandmore.50megs.com/MembersPics/BigD.html
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Bloose
Gearhead Posts: 755
From: Milwaukee, WI
Registered: Dec 2001
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posted 06-29-2004 09:51 PM
My electric fan cools better than the flex fan that was on there. And draws no power when car is moving because car runs cooler than the t-stat is set to turn the fan on at.B-loose
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