Stop in for a cup of coffee

Mattax said

In my humble opinion your response was 100% correct.

A WBO2 can be a helpful tool, and it can help in situations where we aren['t sure, or happen too quickly for us to know the effect of a change. For example if you had the engine on a 1/4 mile run or a dyno, a logger could show us whether the AFR was staying flat in top gear or trending lean or rich with increasing rpm and wind resistance.

Click to expand...

So, there is huge confusion across all boards. Increasing vs decreasing IAB and MAB. Which makes them come in sooner and richer? I see an article where Steve Brule leaned out a 2500rpm rich condition of 12.5 afr by going from a 0.069 IAB to a 0.076. So increasing the bleed leaned it out to a 13.5 afr. Then a larger MAB leaned out the top end 0.041 to 0.045. Made power. Then from 0.045 to 0.035 which richen it back up. Lost power. But, there are huge arguments even on RFS page.

Matt, is this how you understand the circuit?