SD2 Timing Question advance does not match spark table?

[Flyin Brian]

Just got my SD2 in and have a question.
The timing shown in the log on the powerlogger console is much higher than what is shown in the spark table.
Am I missing something?
For example the timing advance shown in the powerlogger console at 14 psi boost is 27.5 and it is around 20 in the PLC tune window on the spark table. Which is correct? 27.5 seems high for WOT. Log attached.
Thanks.

 

[Eric Stage I]

If using E85, spark is added based on ethanol content. This comes from the table called SPK_Alc in the tables area of the tune page. You can set how much advance you want to add in this table. If you don't want any added, make all the values zero.

 

[Flyin Brian]

Thanks Eric. So this spark is added even when flex fuel mode is off if the fuel composition is set for E85?
I will zero out the SPK_Alc table and go for another drive this morning. I've got to get the fueling right before I start adding spark back in.
Thanks again. Love the chip so far.

 

[Eric Stage I]

Any time the fuel composition is changed, the SPK_Alc table is applied.