Originally Posted By Twostick
Originally Posted By L.R Helbling
Perfectly normal. It functions as a heat sink for your ignition circuit. Without it, the same thermal energy would be transferred to your ECU, coil or wires cooking them in their own juices.


First time I've ever seen a resistor described as a radiator...

It's not by the way.

Resistance in an electrical circuit generates heat and depending on the components, light too.

If it says Lucas on it smoke is a given...

Kevin

Never said it was a radiator. A heat sink is an electrical component. The ballast is a resister that captures heat. The resister in the ballast is encapsulated by ceramic. This material can take a lot of heat and the location of it allows it to release that heat without affecting any of the other nearby electrical components.