Hello Everyone,
I race with a group in Northwest Louisiana and I am currently building an engine for a Super Modified class, which has very little restrictions on the motor. Reading Brian Millers tips, he talks about crank trigger ignitions that will will work on virtually all small engines. He mentions crank trigger set up on a Briggs Vanguard, using a Ford Control Module with one crank sensor and two coils. I am interested in putting this iggy on my Kohler 18 HP V Twin.
My question is: With this set up, when #1 plug fires, #2 plug fires also. If #1 is 25 degrees BTDC, that would position #2 lagging 45 degrees behind #1 which would be 70 degrees BTDC. At this point would there be a mixture in #2 and what would result when #2 fired? I understand that both plugs fire during compression and exhaust strokes, with no harm, but I'm confused about the sequence of compression strokes. Am I overlooking something?
I think this has been done successfully, but any help or input for my understanding would be greatly appreciated, before I invest in parts.
Thanks,
Wayne