I replicated the current spark mod by s1r9a9m9, with the 3 coils on a 5 hp briggs. Removed carb, turned intake upside down, and even added a little hydroxy into the mix. I used a small water bottle with a needle valve to regulate water flow. I was not able to replicate his results. This engine does have waste spark, but that should not matter.
Visually observing the spark before and after, the spark with the coils did seem a little more blue, and appeared to fire twice.
The discussion group on overunitypower.com seems to be taking this several steps further.
BillStatistics: Posted by mrgalleria — Wed Jul 30, 2008 4:22 am
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