Quote:
Originally Posted by Kestas
Chas, I believe you and whipple are both correct. Though the current flows in a big circle across two plugs, 80% of the spark energy is used in the compressed cylinder. It has to do with the difference in environment around the gap.
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That's not my argument.
One spark plug of the pair will have the spark jumping from side to center electrode every revolution, half of those sparks will happen under compression.