The Quenching Effect is Lessened with HaloTM Plugs.

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hp1.gif (5638 bytes) hp2.gif (4817 bytes) hp3.gif (7411 bytes) The HALO™ sparkplug fires faster!

Quenching Effect - The amount of spark which is absorbed (blocked) by the center and ground electrode is referred to as the quenching effect. The HALO™ spark plug is designed to allow the flame kernel to go through the halo shape of the ground electrode rather than blocking its natural growth pattern. Thus, the quenching effect is virtually eliminated, resulting in quicker, more complete and more effective combustion.