PWM cooling fan(s) control using ECM

[cpd004]

I hooked up the SS fan with the correct (reversed from C6 module) input, fired up the car and the fans came on slowly at around 198 or so. They got slightly quicker as it got to 209 but I didn't go any further because of the leak and the fact that fan assembly was just leaning against the car. You couldn't hear them but the airflow at that low speed was nice.

My C6 module has to be fried. The SS one would take some work to put in it's place. It has Yazaki connectors on all three sides. One in and one for each fan.

Either way I need to make a decision on the radiator.

So frustrating!

[andrewb70]

Originally Posted by cpd004

I hooked up the SS fan with the correct (reversed from C6 module) input, fired up the car and the fans came on slowly at around 198 or so. They got slightly quicker as it got to 209 but I didn't go any further because of the leak and the fact that fan assembly was just leaning against the car. You couldn't hear them but the airflow at that low speed was nice.

My C6 module has to be fried. The SS one would take some work to put in it's place. It has Yazaki connectors on all three sides. One in and one for each fan.

Either way I need to make a decision on the radiator.

So frustrating!

Go junk yard hunting for a Ford Fusion at the local junk yard and score yourself a C6 fan controller. Should be about $30.

Andrew

[andrewb70]

I thought some of you might like seeing PWM fan control in action.



Andrew

[camcojb]

So I have the Holley Dominator EFI and a Ron Davis radiator with dual Spal brushed fans. What else would be needed to make this work?

[andrewb70]

Originally Posted by camcojb

So I have the Holley Dominator EFI and a Ron Davis radiator with dual Spal brushed fans. What else would be needed to make this work?

Depending on which Spal fans you have you, you might be able to use one C6 fan controller for both. If the combined amp draw of both fans exceeds 32 amps, you will need two C6 fan controllers.

By the time you get two controllers (unless you want to go junk car hunting...the Ford Fusion used the same controller) you might be better off selling the fans you have and going with the new brushless fans.

The C7 fan should fit a Chevelle radiator size well or perhaps the Chevrolet Volt dual 12" setup. The new fans have the controllers built in. I have several customers using the C7 fan and Holley EFI. The C7 fan is 600 watts and the Volt fans are 300 watts each.

I plan on updating the GTO this spring and will likely use the Volt fans.

Andrew

[camcojb]

Thanks Andrew. My plan was to use the PWM controller that Northern Radiator sells with development from Carl at Vaporworx. It will work with everything I already have. Do love the idea of PWM fan control, wish that Holley had it built into their ECU; they have controls for nearly everything else lol.

[andrewb70]

Carl's controller is a standalone unit and so it doesn't need anything from the Holley EFI.