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PostPosted: Wed Mar 11, 2009 5:09 am 
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Supercharged
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Joined: Sat Feb 16, 2008 1:25 pm
Posts: 5611
Location: Downeast Maine
Car Model:
Will a thermal or non thermal fan clutch fit on a /6? Anybody fit one of these to their car?

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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC

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PostPosted: Wed Mar 11, 2009 5:16 am 
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TBI Slant 6

Joined: Sat Feb 04, 2006 11:13 pm
Posts: 166
Location: Chesapeake Beach, Md.
Car Model:
I'm using a small metal flex fan that couldn't keep my big-block Ford cool but has been working fine for 2 years on the stock 225 engine in my Valiant.

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'63 Valiant V200 Convertible
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PostPosted: Wed Mar 11, 2009 7:28 am 
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Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24403
Location: North America
Car Model:
Theory vs. practice: your stock fan isn't robbing significant power, unless you're making regular runs past 4,000 rpm. You stand a chance of fitting a clutch fan in your '67 with careful work; it's much harder in the earlier cars. See here for discussion of clutch fans, here for info on a clutch fan that fits rather easily, here for a discussion of flex fans, and here for a long discussion of faith vs. science in determining the effects of a fan swap.

How 'bout an electric fan with an upgraded alternator…?

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PostPosted: Wed Mar 11, 2009 8:25 am 
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Turbo Slant 6

Joined: Fri Apr 16, 2004 10:50 am
Posts: 660
Location: Stevensville, ON
Car Model:
I tried a clutch fan from a slant six Mirada on my 73 Dart several years ago. IIRC, I found that this fan interfered with the rad and power steering pump. I also looked at a Mercedes clutch fan too but couldn't tell if the fan bolt circle matched up with the water pump bolt circle. It looked too rough to take a chance on buying for evaluation.


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PostPosted: Wed Mar 11, 2009 9:32 am 
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Board Sponsor & SL6 Racer
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Joined: Fri Nov 08, 2002 4:48 pm
Posts: 5835
Location: Burton BC canada
Car Model:
I had an electric fan on the Valaint for a couple of years.....I never turned it on. It finally freewheeled itself to death and I never repaced it.
As long as the car never sees a stoplight(closest one to here is 2.5 hours) you dont need a fan.....nor in the winter....or rain....

My son keeps putting the stock fan back on....

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Yeah....Im the one who destroyed this rare, vintage automobile.....

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PostPosted: Wed Mar 11, 2009 12:59 pm 
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Joined: Fri Feb 29, 2008 10:49 pm
Posts: 1547
Location: Salem, Oregon
Car Model: 1984 D100 Shorty Custom
I had a 5 blade clutch fan on my '74 Swinger and it didn't interfere with anything, I would imagine mostly because there was a properly sized spacer between the mounting flange for the fan, and the water pump pulley.

I can say that the 6 blade solid fans are a bit of overkill, I had one on my '71 Dart, and above 4k RPM, that was all I could hear. When I swapped to a regular 4 blade fan, I picked up 2 mph in the 1/4 mile.

No joke!

~THOR~

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