Opinions on PWM fan controllers

[snappytravis]

Originally Posted by andrewb70

Yes, that is my fan. The shroud even has a place for the controller to sit in.

There are a lot of details in my build thread:

http://ls1tech.com/forums/conversion...es-videos.html

The controller has 5 wires. Positive and negative that go to the fan, the positive and negative from the vehicle power, and the PWM- signal wire.

For power going into the controller I have the negative coming directly from the battery and the positive also from the battery but going through a 40 amp circuit breaker connected through the 3 cavity metripack 480 connector.



The PWM- signal wire goes from the 558-400 sub harness that connects to the Holley main harness. That wire also goes into the 3 cavity metripack 480 connector. All power wires are 10 gauge, while the signal wire is only 20 gauge. The 558-400 harness comes with 20 feet for each lead so there is plenty to run just about anywhere. Few more pics...






Andrew

It seems that I talked to spal about my fans, and they said that the corvette fans are brushless. I can't remember for sure, It may have been that my fans wouldn't work with the pwm controller. I can't remember. I think that is a sweet setup for sure. If I do another project I may go that route. Good Job and thanks for sharing the info. I know on Lous Change build thread they installed the same controllers. I will have to find it and see what fans they ran. They used 2 corvette controllers on it.
Thanks again, I understand it a lot better now.