When General Motors introduced the High Energy Ignition (HEI) distributor in the mid-1970s, it was revolutionary. So much so that it still has a strong following among today's hot rodders. Like other ...
Engineering Explained on MSN

Ignition systems - explained

How does spark plug timing work? An explanation of automotive ignition systems. Ignition coils, distributors, and firing ...
This animated film "Spark In The Firing Line" provides an in-depth look at the ignition system of modern motor vehicles, focusing on the role of spark plugs in igniting fuel within the combustion ...