The Cart Before the Horse: Spec 3 Build

[Deceus]

I used an aftermarket Flex-A-Lite controller for the electric fan in the Demon. It worked pretty well and didn't require a new sensor or bung. Shoving a rod into radiator fins probably won't get you the most accurate reading but that's why it's adjustable.

https://www.summitracing.com/parts/flx-30332

You can even wire in a switch and manually turn it on if you want.

https://static.summitracing.com/global/i...-30332.pdf