Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Electric Fan CFM

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Old Feb 16, 2008 | 08:39 PM
  #11  
SalikDDD's Avatar
SalikDDD
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Joined: Oct 2007
Posts: 671
From: Florida
Default RE: Electric Fan CFM

i have a V6 taurus fan for my 67 but it won't fit in the engine bay it bangs into the water pump

soooo right now im back on with the stock mechanical fan.. ugh. :|
Old Feb 16, 2008 | 09:00 PM
  #12  
JMD's Avatar
JMD
6th Gear Member
 
Joined: Jan 2007
Posts: 5,469
From: AR
Default RE: Electric Fan CFM

ORIGINAL: SalikDDD

i have a V6 taurus fan for my 67 but it won't fit in the engine bay it bangs into the water pump

soooo right now im back on with the stock mechanical fan.. ugh. :|
Regarding the elec fan hitting the water pump, we had this
problem as well. When trying to mount our 3.5" thick fan,
we had to offset the fan slightly lower and to the right of
the center of the water pump. This solved our problem, and
a person ain't likely to notice this unless they are really
looking.... Compromise, compromise!!


We are using a 3,000 CFM Zirgo on the 66. It seems to do
well with our Northern aluminum replacement radiator here in
Southern New Mexico. The highest temp I saw was 205*F (once).
We are running a 185 thermostat.

The hood did make a difference, when we drove with no hood
the highest it ever got was 191*F,,, I was so proud of myself
untill I put the hood on..... .
Old Feb 16, 2008 | 09:09 PM
  #13  
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derwin66
Thread Starter
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Joined: May 2006
Posts: 137
Default RE: Electric Fan CFM

Thaniks people, will try a large CFM. The car has no problem at speed I think it is an airflow thing. Will try a respected brand fan, I guess that old adage you get what you paid for rings true.
Old Feb 16, 2008 | 09:45 PM
  #14  
SalikDDD's Avatar
SalikDDD
3rd Gear Member
 
Joined: Oct 2007
Posts: 671
From: Florida
Default RE: Electric Fan CFM

ORIGINAL: JMD

ORIGINAL: SalikDDD

i have a V6 taurus fan for my 67 but it won't fit in the engine bay it bangs into the water pump

soooo right now im back on with the stock mechanical fan.. ugh. :|
Regarding the elec fan hitting the water pump, we had this
problem as well. When trying to mount our 3.5" thick fan,
we had to offset the fan slightly lower and to the right of
the center of the water pump. This solved our problem, and
a person ain't likely to notice this unless they are really
looking.... Compromise, compromise!!


We are using a 3,000 CFM Zirgo on the 66. It seems to do
well with our Northern aluminum replacement radiator here in
Southern New Mexico. The highest temp I saw was 205*F (once).
We are running a 185 thermostat.

The hood did make a difference, when we drove with no hood
the highest it ever got was 191*F,,, I was so proud of myself
untill I put the hood on..... .

not to thread jack or anything but do you have a picture of the fan mounted in your vehicle that i can look at? thanks!
Old Feb 16, 2008 | 10:09 PM
  #15  
JMD's Avatar
JMD
6th Gear Member
 
Joined: Jan 2007
Posts: 5,469
From: AR
Default RE: Electric Fan CFM

No Problem!

This is kinda still on topic...

http://s245.photobucket.com/albums/g...Picture008.jpg

http://s245.photobucket.com/albums/g...Picture009.jpg

http://s245.photobucket.com/albums/g...Picture010.jpg

http://s245.photobucket.com/albums/g...Picture011.jpg
Old Feb 17, 2008 | 06:31 AM
  #16  
67 evil eleanor's Avatar
67 evil eleanor
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Joined: Nov 2006
Posts: 2,106
From:
Default RE: Electric Fan CFM

JMD, What is the thickness of this unit. On the hood thing, on the KR it has louvers built into the hood. There is a lot of heat that come out of these when the car is still. I can't reach them when driving.
Old Feb 17, 2008 | 07:46 AM
  #17  
66FB06GT's Avatar
66FB06GT
1st Gear Member
 
Joined: Nov 2007
Posts: 149
From: Cypress, Texas
Default RE: Electric Fan CFM

ORIGINAL: derwin66

Thaniks people, will try a large CFM. The car has no problem at speed I think it is an airflow thing. Will try a respected brand fan, I guess that old adage you get what you paid for rings true.
That SPAL fan that JamesW linked to on eBay for $118 shipped is pretty darn cheap in my book. I haven't heard many people that have tried this SPAL and were not singing the praises of it. The CFM rating isn't an overinflated number like some of the off name brands, but this thing really works well, and is one of the thinnest on the market (added bonus).
Old Feb 17, 2008 | 08:17 AM
  #18  
wrenchturner75's Avatar
wrenchturner75
2nd Gear Member
 
Joined: Jan 2008
Posts: 313
From: pa
Default RE: Electric Fan CFM

hey guys how about using a fan with a shroud? i know a lot of guys slap an electric fan on the radiator but use no shroud. problem is the electric fan doesent cover the entire surface of the radiator, and if there is no airflow coming through lets say 10 or 15% of the radiator then your reducing its efficiency, where as using a shroud will help the fan pull air through the entire surface of the radiator therfore cooling much better. by the way if he already using a shroud then i apologize. but it may help somebody else out.
Old Feb 17, 2008 | 09:34 AM
  #19  
JMD's Avatar
JMD
6th Gear Member
 
Joined: Jan 2007
Posts: 5,469
From: AR
Default RE: Electric Fan CFM

ORIGINAL: 67 evil eleanor

JMD, What is the thickness of this unit. On the hood thing, on the KR it has louvers built into the hood. There is a lot of heat that come out of these when the car is still. I can't reach them when driving.
The fan is advertised as 3.5" thick, Itis about a 1/4" from the rad with the
brackets I mounted it with.

My experience with the nohood agrees with your experience with louversallowing
theengine to run cooler. I guess it turns out that those old time hot rodders were
not punchinglouvers in the hoodsof flathead Ford powered cars just for looks!
IMO a louvered hood will have to help with overheating, and maybe quite a bit.
Old Feb 17, 2008 | 10:29 AM
  #20  
tyler72's Avatar
tyler72
3rd Gear Member
 
Joined: Mar 2006
Posts: 971
From: Apison, TN
Default RE: Electric Fan CFM

I was having overheating problems with my jeep. It has a 4.3 Chevy in it with a Northern aluminum radiator. I had a name brand pusher fan on it that was supposed to push 2600 CFM, but it wouldn't keep it cool in hot weather if I wasn't moving. I found out that I could get a flexalite black magic fan for a foxbody mustang that would fit well, and it came with a shroud and the wiring kit. It cost me $300 for just the setup, but its rated at 3300 cfm, which I think is a little low because this thing rocks!!! it flows a ton of air and my overheating problems are gone! I believe that it would fit well on other mustangs too if you did some minor fabrication for brackets.



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