Quote:
Originally posted by Sion
multiple tip plugs are not designed to have multiple sparks. that is not the point of them. yes, the spark will travel the path of least resistance to only one of the tips. it is the fact that the spark is more exposed to the air-fuel charge that is their unique advantage. thus you get a larger flame kernel which results in more of the air-fuel charge getting burned with each spark. the result is more power and better fuel efficiency.
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How exactly is the spark more exposed? You still gap multi-elec. plugs to the same specs as single elec. plugs, so the spark's not gonna be any longer at all. The plug is sitting down in the fuel/air mixture whether you have multi or single. The rate of burn of the mixture is determined by the octane of the gasoline and the oxygen content of the air, not the length of the spark (which is consistant across plug types anyway assuming you gap them properly).
Multi-electrode plugs are BS. You're getting the same result that you do out of regular plugs, but you're paying more to be ripped off- - - after all, why wouldn't the companies tell you about this advantage in their advertisements if it were true rather than basically flat out lying about the plugs? (showing sparks coming off all 4 electrodes is plain and simple false advertising since it will NEVER happen in real life)