Quote:
Originally Posted by monroe74
"the 80% that Johnny told you would be a good place to try"
I'm having a hard time finding objective proof that 80% is better than 100%, especially given what's stated in that article.
"there will be a point that it will move into the rich region, that should be after the 80% throttle mark"
I guess what I'm realizing is that I can basically evaluate A vs B by comparing the two injector duty cycles, and seeing how that ratio compares to the P:G ratio (i.e., the amount of time I spend in WOT, as compared with EOC, or neutral-coasting).
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The link that PaleMalasian posted was exactly what I needed:
http://www.autospeed.com.au/cms/gall...0&a=110216&i=9
The red region of 0.42 @2000 rpm is the optimum island here but more power is available above 120 BMEP up to 140 BMEP. What is happening here could be a couple of things: Richening of the mixture or maybe a reduction of timing but I place my bets on richening. What I am trying to get you to do is find the transition out of the red region. Obviously it is not as black and white (this case red & yellow) as a step, but plotting some data might show a bend in the mixture rate.