Ahem, so in the V8 pursuit of exceeding 2.3 hp/cid, the notion of dual spark plugs comes to my mind.
a pilot was telling me about the rpm change you can hear when checking ignition to the spark plugs. Prime plug or redundant plug will both run a lower rpm than both plugs firing.
So that says something about the wet chemistry within a big bore.
Has there been PMD heads that have investigated dual sparkplugs?
not like a 2nd spark plug doubles the HP, but that would be a funny on someone, someday.
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