Electric Fans
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Re: Electric Fans (69L68)
You should not install fans infront of the radiator. Pusher style fans are not very efficient and will often block air from going through the radiator. The recommended setup is a high quality puller fan mounted behind the radiator, replacing the mechanical fan.
I have the Spal dual 11" fans on my '71 454 and no mechanical fan. It has no problem cooling even on a 100+F day with AC on in traffic. Also hear good things about late model F-body fans and fullsize lincoln fans.
I have the Spal dual 11" fans on my '71 454 and no mechanical fan. It has no problem cooling even on a 100+F day with AC on in traffic. Also hear good things about late model F-body fans and fullsize lincoln fans.
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Electric Fans (69L68)
I highly recommend Permacool 16" 2950 cfm fans.. They are less than $90 and by far the best bang for the buck..
There are a few threads out there about electric fans.. Do a search for electric fans...
There are a few threads out there about electric fans.. Do a search for electric fans...
Racer
Joined: Mar 2003
Posts: 288
Likes: 0
From: Roanoke VA
Re: Electric Fans (GrandSportC3)
I highly recommend Permacool 16" 2950 cfm fans.. They are less than $90 and by far the best bang for the buck..
I agree!! Plus their high performance fan doesn't have a cover so it flows more freely! I just bought mine the other day, but haven't put it on yet.
Drifting
Joined: Mar 2003
Posts: 1,608
Likes: 3
From: Canberra AUSTRALIA
St. Jude Donor '05-'06
Re: Electric Fans (69L68)
Has anyone fitted a round fan (like some of Permacools) directly onto the rear of the fan shroud?
I think this would allow for the air flow that GM engineers designed but also not require the removal of the shroud.
Just my 0.02 worth.
:rolleyes:
I think this would allow for the air flow that GM engineers designed but also not require the removal of the shroud.
Just my 0.02 worth.
:rolleyes:
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Drifting
Joined: Mar 2001
Posts: 1,600
Likes: 0
From: Valencia (near LA) CA
Re: Electric Fans (Brettmc)
How are you guys doing the wiring? I know I need a solid 12V supply. Where is the best place to get that undr the hood? Does it need to to be switched with the ignition?
Thanks,
~Jay
Thanks,
~Jay
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
I put in a set of dual electric fans in front of the radiator. It dropped right in perfectly and is held in with zip ties. The neat thing is, you can't even see them! They spin on their own even when off from the airflow of the engine driven fan. I was concerned they might block airflow but engine temp is fine in all driving with airtemps under 75 degrees. I really only need the electric fans for stop/go driving on hot summer days. Wiring? I took an "on all the time" accessory plug from the fuesblock and ran the wire thru the hood release cable hole. You may want to run the electric fans for a short period of time after you shut the engine off. Wire runs along the vacuum hoses past the radiator. Spliced in a fuse in the engine compartment. MJ
Drifting
Joined: Feb 2001
Posts: 1,603
Likes: 0
From: San Francisco, CA
Re: Electric Fans (Jay M)
In response to wiring the fan- My Flexilites came with a control box etc. You To get power to the control box, I ran a new 8 gauge wire off the alternator to a junction box that I mounted on the drivers side firewall. (Drew power from the junction for the fans.) I then ran a wire away from the junction and spliced it into the old alternator wire. Covered it all with conduit and it looks and works great. The junction box is designed so that additional accessories can be added. Mine also needed an ignition (switched) power supply and I drew that directly from the fuse box and ran through the rubber grommet in the firewall. Thanks to a recommendation from another Forum member, I got the information and parts for this installation from Mark at MAD Enterprises (559- 539-7128) (website I think is madelectric.com). This guy was unbelievably knowledgeable and helpful. I called him a couple of times with questions. One time on a SUNDAY AFTERNOON :eek: he took the time to help me draw a diagram to get it right. He also sells relays, high grade wire, junction box etc. Check out the website or call him. :cheers:
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Electric Fans (GrandSportC3)
Here's a pic of my setup...
I run triple fans.. (dual flex-a-lite and 16" Permacool)... I need added cooling because of my pretty radical engine...
[Modified by GrandSportC3, 3:37 PM 4/11/2003]
I run triple fans.. (dual flex-a-lite and 16" Permacool)... I need added cooling because of my pretty radical engine...
[Modified by GrandSportC3, 3:37 PM 4/11/2003]
Burning Brakes
Joined: Jun 2002
Posts: 792
Likes: 2
From: Norcross GA
Re: Electric Fans (GrandSportC3)
(dual flex-a-lite and 16" Permacool)
[Modified by Bobchad, 5:21 PM 4/11/2003]
Thread Starter
Racer
Joined: Apr 1999
Posts: 418
Likes: 2
From: Fort Mohave Az.
Re: Electric Fans (69L68)
Thanks for all the responce. I got buried doing house stuff. I had the fan clutch replaced the other day, but haven't had a chance to see if it made a difference. If it doesn't get it I'll put electrics in. Is there any clearence problems headlights or hood when installed in the front?
Steve
Steve
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Re: Electric Fans (Bobchad)
(dual flex-a-lite and 16" Permacool)
Can we see a better picture of the dual flex-a-lites that I see in the background?
Can we see a better picture of the dual flex-a-lites that I see in the background?
Burning Brakes
Joined: Sep 2002
Posts: 1,179
Likes: 3
From: SF East Bay CA
Re: Electric Fans (GrandSportC3)
Go to the link below and double click on the thumnails. Kind of dark, but you should be able to see the set up.
http://www.stacyandtim.com/1979_corvette_cooling.htm
Dual Flexalite w/ therm controls/Be Cool Alum
http://www.stacyandtim.com/1979_corvette_cooling.htm
Dual Flexalite w/ therm controls/Be Cool Alum
