I'm going to add some here to the mix, one thing I did is that the I use the value of the Upper limit of the Happy Zone to be at 7k rpm 28 instead of 26 since the next change point up the scale is 29.



left scale is for mas in and knock buffer right is for timing off set and corresponding timing map




This is a 10 min flog log SMART can be seen at work. Had to split the file in 3 since excel can only plot 32000 samples at a time

 

Here's a run with Boost at 29 psi and zero timing applied with no SMART intervention. Average AFRs are around 11.3,

 

Is yellow your new noise threshold (happy zone), or the old one that you want to move?

d

 

Is that still your pump gas map or have you leaned fuel delivery one point?

d

 

Yellow is existing happy zone. I'm going to fill up with GT+104 and repeat the testing with out making any tuning changes.

 

I have leaned fuel delivery one point. Here is a graph with same map.

 

Think I should pull a couple of degrees of timing out from 4500-6500? Seems to be just as noisy before I pulled 2 degrees out and smart made its corrections. Heres one run overlaying the other. Notice how knock levels seem to be consistent with and without timing adjustments.

 

^^^

 

I have to ask; Is there any correlation between the knock buffer signal number(assume it is percent) and voltage? ie 20 = 1v, 26= 1.3v. 50=2.5v

 

Yep

Shiv

 

Thanks. I'm starting to understand now!