DIM Electronic Advance Ignition

About rotor phasing, here is my take. A standard V8 rotor and cap accommodates about 40 degrees of crank advance. The locked distributor I have, starts at leading edges of cap/rotor interface, with the falling edge of conditioned pick-up sensor reference signal for base timing. The base timing setting adds to that. If base timing is 14 degrees, then 40 plus that would yield 54 degrees total crank advance. That is more than enough. Some advance by RPM, some by MAP (-vacuum) all by table, so you get what you want, where you want it, and not, if that is desired too.

I have verified using mathematics and in hardware with timing light. I have not tried with a distributor with mechanical advances, and with electronic controls, that does not seem correct to me. My mission has been to eliminate the mechanical components and replace with well proven accurate and reliable electronic means.

Mopar had a good idea with lean burn, however it was flawed in the implementation. It was introduced in the era of primitive electronics, the cost cutting did not help. I am working with devices rated to 125 degrees C, (100C is 212F). Micro controller speeds are 100x, silicon absolute pressure sensors are perfection compared to a diaphragm and pot. The rating on the IGBT coil drive component, are superior compared to bipolar power transistor.

Bill is correct, what I am doing is similar to early to mid 90's OEM systems, with the difference, it is user tunable. By going to cam/crank sensing and coil on plug, or 2 quad coils it would be near current technology.

I also experimented with ion sensing, were a follow on current is applied to the spark plug making it a sensor to view the combustion event. The ion sense is an optimal way spark timing control. It still needs the normal table control, plus additional electronic hardware.
Simple is good for reliability, it might be too complex for that.