I found the advance curve for a 2.2S and used that as the basis of my new Mittlemotor advance curve. From the factory chart, the RPM and advance numbers are for the distributor which means (I think) these values both need to be multiplied times 2 to arrive at the engine advance / crank rpm numbers.
With that, I simply took the “S” curve (bottom of the two curves) and converted / plugged those numbers into the 123 software to create a new curve. The only modification I made was total crank advance stopping at 28* for the twin plug / high CR considerations.
Based a the chart, it seems the advance at the crank is 0* all the way to 1200 engine RPM. That seems odd to me but is that correct?
Also, to aid starting, I’d heard of people modifying the 500 RPM point in terms of advance to get the engine to start easier. To do that, would I need to advance or retard the timing (eg: 10* advance or -5* retard)?
