E3 Performance Spark Plugs are engineered to maximize peak pressures created by the surface area of our patented DiamondFire ground electrode. After conducting the initial research and testing at their lab in Atlanta, engineers put numberous electrode designs through an intensive series of lab experiments that measured the amount of power created by the pressure rise from a single combustion event. By keeping other parameters the same, reseachers were able to accurately compare the combustion cycle values (Indicated Mean Effective Pressure) for the most popular electrode styles.
Several competitive plug designs, including premium offerings from major manufacturers, have electrodes that actually block portions of the flame kernal as the spark attempts to ignite the air-fuel mixture. Since the most complete combustion occurs when the maximum amount of spark reaches the mixture, our plugs are open at the end. This open design helps our flame kernal to travel more directly toward the fuel mixture instead of moving at an angle or sideways. After years of testing, E3 determined an edge-to-edge spark could significantly improve the efficiency of the burn.