#1  
Old 06-28-2012, 11:21 PM
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dlarkins dlarkins is offline
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Default Thermostatic control for a 'Dorman' electric fan ?

Hey guys,

I'd like to install a thermostatic control in my 65' GTO electric fan. I figured it was a good idea, like after the car is turned off, the fan would continue to run, like on newer cars ?

Questions:

1) Do I need a thermostatic control at all ?

2) Do I also use the OEM fan (actual fan blades), or just not install the OEM fan at all ? Or won't there be enough room for both ? My guess is the actual OEM fan would mess up the control's temperature sensing ?

3) The electric fan is a Dorman unit # 620-634 from RockAuto.com

4) The car has a brand new OEM 4 core Harrison

5) The car has a Vintage Air system installed, so no more factory heater core

Any tips or tricks you could throw my way are super appreciated !

Dave
dlarkins@comcast.net
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"What's the point of owning a muscle car if you can't scare yourself stupid from time to time ?"
  #2  
Old 06-29-2012, 08:37 AM
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Squidward Squidward is offline
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I used a Taurus 2 speed fan. I created my own thermal control circuit with 2 temp switches in the heads and some relays (5 in all). Slow speed comes on at 185, Hi speed comes on at 200. I also have a manual override switch to kick it instantly to high speed. And it will also be enabled by the a/c compressor kicking on.

But all of these functions can be provided by some ready-made fan control circuits, with some being very simple for a single speed on/off at a specific temp setting, and others for dual fans and other features. I ended up spending about as much on components and wiring as purchasing a unit would've cost me.

I doubt you would be able to use your mechanical fan with the electric if your electric is a puller. If your fan is a pusher, you could probably do both.

Something like this is simple and to the point:
http://www.buyautotruckaccessories.c...FSoZQgodSQnAVw

Google "electric fan controller" and you find quite a few out there. Just be sure to search for some reviews and opinions, because I've read a number of complaints about durability from certain manufacturers.

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"...ridge reamer and ring compressor? Do they have tools like that?"
  #3  
Old 06-30-2012, 12:41 AM
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dlarkins dlarkins is offline
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Default Which one to buy then ?

Do I buy the $50 one OR the $250 one, for a nice street able show car ? GTO

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'65 GTO Hardtop


389 .030 400ci Tri Power, .068 cam, HO manifolds, M-20 4 SPD, '70 12 Bolt 3:36 Chevrolet posi-traction, Montero Red, Parchment gut, VINTAGE AIR, PFDB, Bilsteins, F&R HD Sways, Hotchkis rear bags, Firestone Indy 500 shoes



"What's the point of owning a muscle car if you can't scare yourself stupid from time to time ?"
  #4  
Old 06-30-2012, 03:22 PM
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dlarkins dlarkins is offline
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Default Decided on this one

http://www.dakotadigital.com/index.c...rod/prd641.htm

[IMG][/IMG]

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'65 GTO Hardtop


389 .030 400ci Tri Power, .068 cam, HO manifolds, M-20 4 SPD, '70 12 Bolt 3:36 Chevrolet posi-traction, Montero Red, Parchment gut, VINTAGE AIR, PFDB, Bilsteins, F&R HD Sways, Hotchkis rear bags, Firestone Indy 500 shoes



"What's the point of owning a muscle car if you can't scare yourself stupid from time to time ?"
  #5  
Old 07-01-2012, 04:19 AM
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Now THAT looks nice! I'm curious what your review will be on ease of install, durability, etc.

And the price looks nice for the additional features!

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"...ridge reamer and ring compressor? Do they have tools like that?"
  #6  
Old 07-26-2012, 11:17 AM
ERIC AULL ERIC AULL is offline
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Check out DERALE products...I used thier shroud with dual fans, and the relay/ temp switch they make for it.....nice products, and support. Eric
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Old 07-26-2020, 08:18 PM
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Quote:
Originally Posted by ERIC AULL View Post
Check out DERALE products...I used thier shroud with dual fans, and the relay/ temp switch they make for it.....nice products, and support. Eric
PM Sent

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  #8  
Old 07-27-2020, 08:29 AM
ERIC AULL ERIC AULL is offline
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Here is a pic
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  #9  
Old 07-27-2020, 08:34 AM
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highrisk highrisk is offline
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Quote:
Originally Posted by ERIC AULL View Post
Here is a pic
You wouldn't happen to have a picture of the side where it attaches do you? I am still trying to decide if I want to buy these for my car but I want to make sure I can mount them without a lot of modification.
Thanks,
Dale

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  #10  
Old 07-27-2020, 08:38 AM
ERIC AULL ERIC AULL is offline
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If you send me an e-mail address, I can get you a few pics...

  #11  
Old 07-27-2020, 09:04 AM
ERIC AULL ERIC AULL is offline
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Quote:
Originally Posted by ERIC AULL View Post
If you send me an e-mail address, I can get you a few pics...
HERE are a few pics....hard to see, but it is a 'crowded area"....
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  #12  
Old 07-27-2020, 09:16 AM
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DC Control is a one-man show, Brian Baskin. He's an electrical engineer, and builds these himself. He has test cycle (2 days long, I believe) that he puts EVERY controller through, before he ships. I've lost track of how many I've installed and convinced others to buy, but I've not seen any that failed. I have one that is 12 or 13 years old and still working fine. It usually takes a few weeks to get these, but IMHO well worth the wait.

http://www.dccontrol.com/constant_te...ontrollers.htm

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  #13  
Old 07-27-2020, 09:47 AM
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Quote:
Originally Posted by ERIC AULL View Post
HERE are a few pics....hard to see, but it is a 'crowded area"....
Thanks for the pictures, I figured I would have to make my own brackets.
Dale

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