Champion Cooling Systems
One of the more appealing aspects of an older car is the simplicity of the electrical system: no fancy sensors and switches that control engine function. But swapping a modern engine into a classic changes that perspective as we added the Crate Harness to the Redeye.
Most switches handle up to 15 amps, but when the component you want to switch on requires more than twice the amperage, a relay will safely allow the current to flow without overheating the switch. We explain how the relay functions, and provide valuable pointers.
There’s a right way and a wrong way to wire up electric cooling fans, and we provide three diagrams to make it easy.