Speed Secrets: Finding and Driving The Limit

Finding the Top Dead Center of driving.

For those of you who have built a piston engine, you know what Top Dead Center (TDC) is. For those who have not, let me explain.

As I'm sure you're well aware, the engine in your car (unless it’s electric) has some number of cylinders, and each one has a piston that moves up and down within it. Without going into great detail, the camshaft (which essenti…