I've used and really liked the controller from AutoCoolGuy. Only downside to me was that it was bulky, but it performed flawlessly in the Texas heat.

I put a contour fan in a first gen S10 truck with a SBC because there was no room for the preferred mechanical fan and proper shroud.  Installation of the fan was as simple as trimming a bit of plastic on the shroud and fabbing up a couple of brackets.

I went through 2 failed attempts to properly control the fan (including an early DCController) before arriving at the solution that worked flawlessly until the truck was sold a couple years later.  I used a Volvo 2 speed fan relay from a pick & pull, and a 2 speed temp switch for a VW/Audi, initially mounted in the lower radiator hose but later moved to a bung to the radiator tank when the old, cheap eBay rad leaked.  I found the idea for the combo of OEM Volvo & VW/Audi parts on the internet.

https://fyi.boardhost.com/viewtopic.php?id=2272

Last edited by TimC (2/19/2025 10:34 AM)

Ive been using Multispeed Controllers and Accessories unit for the last 23 years and never had any issues with it.  If I ever had any questions the guy always emails be back within 24 hours.

 

Are the Contour fans a two-speed fan?  Some controllers mention this. Some don’t.
One controller a friend is using starts one fan at full speed, then the second one at full speed after 10 seconds
Obviously, I am at step zero on learning curve here.

Not sure I understand both fans running at both speeds? Clarify?

Thanks, Tim

I'm using a 95 single fan. I found out the aftermarket replacement motors are single speed only, possibly true for a Taurus replacement as well. Contour, I'd be checking, if they are not original.
Good luck to your "friend".  

I'm gunna guess it's for Jose.

I like this setup due to simplicity and use of OEM factory components.

https://www.youtube.com/watch?v=N-o8yFmQQgo

I will assume you have already upgraded to a higher output alternator. I ran the Contour fans on my 68 for a while, but I spent more time starring at the temp gauge than the windshield always waiting for the fans to start.

I will be the first to admit that I did NOT have a decent controller, and I was bringing both fans on at the same time, the end rush on those fan motors was a lot. A single belt on the alternator would not hold without squealing. I had a by-pass switch to manually start the fans just in case, and I used it more than not. I will say those fans are loud, but they move a ton of air. A good variable speed controller would be the answer, I just got frustrated and went back to the mechanical.

At times I wish I would have put the time in to do it correctly, I should have asked you guys some questions, I did like the way the motor revved without the mechanical fan, my clutch is too tight.

I will be interested to see what system you put together, I still have the fans and would consider them when I add the AC this spring. Then I would be upgrading the alternator as well, It just never ends.

Hope everyone is staying warm, 7 degrees when I started the truck this morning, I am getting way too old for this, and still about 5 years form retirement.

This is what is great about all of the different experience on here. I spent all of the time swapping to a dual belt pulley on the alternator and WP to deal with the squeal and never considered a wider V-belt to bite better.

If I had only presented the issue back when,

50vert wrote:

I'm using a 95 single fan. I found out the aftermarket replacement motors are single speed only, possibly true for a Taurus replacement as well. Contour, I'd be checking, if they are not original.
Good luck to your "friend".  

   My 93 Taurus fan was a two speed fan.  I just hooked it up using the high speed only.