MSefi.com read only forum (Jan.15,2018)

ronsonol wrote:Yes its easier to answer some questions after reading what Lance has to say. I've learned a bunch from hours of reading his docs and posts.

I am trying - I am good with physical stuff but the timing stuff confuses me so I hope everyone can bear with me.

Yes that seems reasonable. Lower map values tend to indicate leaner conditions. Leaner conditions require longer burn times - hence the need for more advance. Spark sooner, burn longer. Most people only think about rpm advance. eg 3000 rpm 36 degrees advance at WOT. But at crusing speeds on the hig...

I think I can answer your questions. The colour are just the scheme to represent values, eg 0-10 degrees is green, while a value of 50-60 degrees is red. The 10 degrees your set at 'idle', should really be called your base timing. Actually your idle timing value will depend at which rpm/map value y...

How come if I say idle advance of 10, when I look at hte tabel around 600 - 800 rpm @ 50 - 30 kPa its all like 24+ degrees?

Also, how are we to use the table generated? It's way larger than 12x12, its like 34x12 or something. Also what do the colored areas mean?