Look at the tip of the removed spark plug. A spark plug should come out of an engine with a central electrode that's got a light gray or brown residue. It should be free from any oily or fluffy black ...

Simply put, getting the maximum power from any race engine is a function of the temperature, pressure and timing of combustion gases in the cylinder. Since it would be expensive and impractical for ...

In this video, I show you how to test spark plugs and coils on any car, even if the spark plugs are recessed or hard to reach. Whether you're troubleshooting engine misfires, poor performance, or bad ...