Without the spark plug, there would be no internal combustion engine. The exact date of birth and father of the first real spark plug isn’t known for sure – some credit Edmond Berger with the invention as far back as 1839 but it was unpatented and definitely not designed for a car engine.
NGK Spark Plugs-backed teams racked up three wins at the NGK Spark Plugs NHRA Four-Wide Nationals, at zMAX Dragway in Concord, North Carolina.
A spark plug takes electric current from the ignition system to the combustion chamber of an engine to ignite the air/fuel mixture through an electrical spark. Let’s look at what makes a spark plug work.
Andrew Markel shows how and how not to gap a fine-wire spark plug.
Andrew Markel explains how iridium’s hardness and melting point makes it a perfect spark plug material and how laser welding made it possible to use it on spark plugs.
This six race partnership series is based on the past success and core foundation of the partnership of NGK Spark Plugs and team Seebold Sports.
Even the most advanced precious-metal spark plugs are, at their heart, made of copper. The center electrode contains a copper core, surrounded by a nickel alloy, which helps combat wear and corrosion.
Choosing a set of racing spark plugs for a particular application is not as easy as it sounds because the plugs have to be closely matched to the application.
The potential for inadvertently creating a misfire is very real when installing new spark plugs. I say this because I’ve diagnosed many misfires created by greasy fingerprints, broken insulators and incorrect air gaps – all caused by poor installation procedures.
For a long time, the copper core spark plug ruled the roads. For under a dollar, you could buy a plug that would fit, but you had to gap the plug the correct distance between the electrodes yourself.