PWM cooling fan(s) control using ECM

[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.

[camcojb]

Originally Posted by andrewb70

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

Correct.

[camcojb]

Originally Posted by andrewb70

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

Correct. I was hoping that the Holley could do it, but if I have to buy a controller and possibly change fans it's easier to use Carls setup.

[AEH]

So after re-reading all 58 pages of this thread is there a consensus on if a late (2019-20) version GMPP connect & cruise E67 will work ? The last failed or maybe frustrating is a better term, efforts were back in 2017 if memory serves.

Has anyone had success lately? And if so, what was the fix? Other than of course sourcing a junkyard E67?

Thanks
Mike

[68454RS]

Originally Posted by andrewb70

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

Andrew, is this not the same as what you did with my Term X and my Spal brushless? Or something completely different and I should delete this.. lol

[colorado80439]

[andrewb70]

Originally Posted by 68454RS

Andrew, is this not the same as what you did with my Term X and my Spal brushless? Or something completely different and I should delete this.. lol

When using the brushless fan with the built in controller, you can go directly from the Holley to the fan signal wire.

Andrew