Originally Posted by
tyor
hmm I thought it would ignite earlier when the speed increases. say. 28degree at idle and something like 33degree at 5000rpm
Nope.
Eletronicaly one event can not be advanced but retarded from one moment.
You set maximun 28° and it delay to 5 degree at low rpm.
The fig is only an aproximation of what happens.
when we advance phisicaly the spatk, the curve rises closer to ideal.
In some engines the delay is so much you can not get the engine started.