06MonteSS wrote:post up your log file....

and what revision are you on?

Hi Lew, sent you an email with the log.

Revision 9r08

U7194, for a corvette Z06. Running the DS Performance 93 Octane program and I have leaned the Performance tune -10% over 4k rpm per the DSLOGREDUX recommendations. LTFT's are at 0--1 and need no adjustment. Problem: at WOT the A/F goes to a flatline fixed 12.23 ratio. Even if I lean it further to ...

06MonteSS wrote:send me screenshots of those tables you're talking about...

Done, attached to emails.

I believe the new GM settings say: Any instantaneous read of over 1.3 is considered bugus, False. Rattles or whatever. Logic is "zero to 12 knock in one instance?" False.

regarding your email you sent me...

Yes, great reply. But GM changed the Max KR from 12* to 1.3* It appears that DS changed it from 12* to 10* in the Performance Tune because mine never pulled more than 9.492*
In the stock tune it, pulled a little over 10*

where are you seeing that the Max ...

Request that the next revision of U7194 reduce the Knock Retard Max Valid from 12.0 (GM value for the 06-08 z06's) to 1.3 (GM value for the 09 z06) in the Spark Control Table. GM has finally realized that the value needed to be changed because of too much Knock Sensitivity producing KR.

the ...

Ok this has been brewing for a while.
And no, no TCM support yet but this is a big step in the right direction.
*07-08 Truck tunes are ALL updated for better performance.
*COMPLETE support for 2009 vehicles, there where some missing in the prior crom.
*A new process for unsupported calids ...

Attn: DS. Request that the next revison of DS U7194 reduce the Knock Retard Max Valid from 12.0 (GM value for the 06-08 z06's) to 1.3 (GM value for the 09 z06) in the Spark Control Table. GM has finally realized that the value needed to be changed because of too much knock sensitivity producing KR ...

yep, at normal part-throttle driving/cruising, the AFR will always be 14.75, that's the stoich value that it needs to keep during part-throttle operation... which is what the fuel trims (ltft's) are used for... it uses those values to determine how much fuel to add/subtract in order to keep that ...

Can not get any A/F readings for my new Predator. A/F Only reads 14.75 and does not change. Therefore, the DSLogRedux Program will not work either, because it requires the A/F readings. Manual 2008 Corvette application. Any help? Thanks

the performance tune is made for 93 octane... if you're using race fuel with a higher octane, you can go in to Modify Tune and adjust the timing/spark advance for WOT yourself- increase it a couple of degrees...


Can we add a 2 of degrees advance for WOT to your 93 Octane Performance Tune without ...

06MonteSS wrote:yeah, manuals won't have tranny TM... they'll still have engine TM, but not tranny TM...

My understanding is that there is a GM TM Control for each gear in the C6 Z06 Manual Transmission.