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Clutch fan or flex fan on your modified muscle car?
#1049000
08/08/11 02:56 AM
08/08/11 02:56 AM
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Joined: Jan 2003
Posts: 5,270
Missouri
MY340
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,270
Missouri
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Which do you prefer for cooling on your non-stock muscle car? I switched to a Flex-o-lite flex fan after having some 90 degree+ hot weather cooling issues. My clutch fan wasn't doing the job anymore and now the engine temp is running 20 degrees cooler in the hot weather. I'm sure it was going bad or just worn out.
1970 FE5 Duster 360/904/3.91's SOLD
1973 TB3 SpaceDuster 340/4spd/4.10's SOLD
Moparless for now but when the opportunity is right I'll have another one.
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: DAYCLONA]
#1049004
08/08/11 08:20 AM
08/08/11 08:20 AM
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Joined: Jan 2003
Posts: 21,080
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,080
Niles , Ohio
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I run heavy duty Stainless flexs.Mine has been on at least 15 years with stock 65 rad and shroud.440 runs 180 all day even in the 90s and racing also.Rocky
Chrysler Firepower
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: MY340]
#1049006
08/08/11 08:46 AM
08/08/11 08:46 AM
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Joined: Jan 2003
Posts: 5,907
Athens, Greece
Pyper70
master
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master
Joined: Jan 2003
Posts: 5,907
Athens, Greece
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After I saw the flex fan come loose and shear away from the shaft on my friends El Camino and damage the underside of his hood, his heaterbox hoses and gouge other parts of the block....The idea of putting one of those in my engine bay went out the window. If the hood was open someone would have been seriously injured....This was back in 1999...and the quality of those cheap fans ain't gettin any better. I used the shroud, the 7-blade with the thermo clutch along with a pusher fan, no problems.
Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: MY340]
#1049007
08/08/11 10:32 AM
08/08/11 10:32 AM
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Joined: Mar 2005
Posts: 2,060
Pendleton NY
terzmo
top fuel
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top fuel
Joined: Mar 2005
Posts: 2,060
Pendleton NY
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7 blade steel clutch fan and schroud...only combo that cooled My 498 stroker. Dumped the flex fan.
Last edited by terzmo; 08/08/11 02:40 PM.
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: bigsbigelow]
#1049010
08/08/11 11:35 AM
08/08/11 11:35 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
I hate flex fans as I always seem to cut my fingers on them. I don't like clutch fans either because when they go it's by by radiator. I have used one of these on my last 3 440 cars. They work great and are very light. (and cheap)
http://www.summitracing.com/parts/SUM-G4948/?rtype=10
How do these perform in a street car that sees some idle time in traffic?
no issues. I always run a shroud. All 3 cars stayed at 180* or below. I think my old 67 got up to 190 a few time but as soon as you start to move it would drop. I drove this car to the track and raced all day and it didn't get above 180...
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: Mr.Yuck]
#1049011
08/08/11 11:41 AM
08/08/11 11:41 AM
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Joined: Jul 2008
Posts: 30,460
Florida STAYcation
dOOc
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,460
Florida STAYcation
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I am not a FAN at all of the clutch unit ....  I have seen tooo many lock-up or fall-apart then shoot-through the rad or the hood. FLEX furr me.  Sharp edges ? ... the OEM Chrysler parts don't have this prob.
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: Mr.Yuck]
#1049012
08/08/11 11:47 AM
08/08/11 11:47 AM
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Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
bigsbigelow
pro stock
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pro stock
Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
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Quote:
Quote:
Quote:
I hate flex fans as I always seem to cut my fingers on them. I don't like clutch fans either because when they go it's by by radiator. I have used one of these on my last 3 440 cars. They work great and are very light. (and cheap)
http://www.summitracing.com/parts/SUM-G4948/?rtype=10
How do these perform in a street car that sees some idle time in traffic?
no issues. I always run a shroud. All 3 cars stayed at 180* or below. I think my old 67 got up to 190 a few time but as soon as you start to move it would drop. I drove this car to the track and raced all day and it didn't get above 180...
Sounds like I may try one out. I am looking for a lighter alternative to my H.D. Stainless flex fan. I do not run a shroud and my car only creeps to about 190ish in traffic so I think my system is good. Like said, I just want a lighter fan.
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: Mr.Yuck]
#1049014
08/08/11 01:45 PM
08/08/11 01:45 PM
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Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
bigsbigelow
pro stock
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pro stock
Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
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Quote:
get a shroud!
P.S. you'll need a spacer. I think mines a 1" or 1.5"
I currently run a spacer. The fan is about 5/8" of an inch from the radiator.
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: 62maxwgn]
#1049016
08/08/11 05:32 PM
08/08/11 05:32 PM
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Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
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Re: Clutch fan or flex fan on your modified muscle car?
[Re: can.al]
#1049019
08/08/11 08:10 PM
08/08/11 08:10 PM
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Joined: Jan 2003
Posts: 4,588
St. John's Newfoundland
440newport
master
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master
Joined: Jan 2003
Posts: 4,588
St. John's Newfoundland
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Quote:
who have tried the performance 5 blade clutch ..i have heard it works excellent?
The MP fan package is the same as a 80's 5th avenue/Diplomat fan. I replaced the solid 7 blade fan with one in my Mirada and it solved my overheating in traffic problem.
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