I made progress last night in dwell time extension. This enables coil charge to be extended across the timing reference point. For those who wonder, "what is that?", it has similarities to increased dwell with a dual point distributor. However it does not need a second trigger coil. There is always the requirement of about 0.3mS, for the ignition event, so dwell cannot be 100%.
My prior applications with 4-Cylinder engines with quad coils did not prepare me. They had four times more available dwell time, due to multiple coils that could overlap in charge, and fewer cylinders. I was also using two timers to control the events, that actually was simpler.
Single coil V8 ignitions, are limited by the serial nature of ignition events. A good coil, that is quick to charge is essential. I will evaluate several popular coils, for high RPM energy capability.
I will also check operation with a MSD CDI unit.
