2001 3.4L Grand Am Help with KR

[GMV6Power]

To start out, my car is a 2001 Grand Am with 3.5L heads and LIM, non ported 3500 Upper, bored 59mm throttle body, 28lb trailblazer injectors and a borla exhaust. I have owned the car for over 5 years and it has always had KR issues and I think I am finally starting to work them out.

I was able to work on my tune this past weekend and I think I have put a dent in it, but I am still getting some KR and I am looking for some advice where to go next. Overall I would say it is the best that it has been in years, but I know there is still work to be done.

I have attached a log and my file if anyone cares to look it over and provide any thoughts.

[MMGT1]

EGR Diag Enable Temp Set to Max for tuning, then return to stock if you like after
Power Enrich Delay vs. TPS... 0 that table out
High and Low Octane Timing tables: Copy and paste the High table to the Low for tuning. When you are done, set the low table 3* below the high to enable the proper function of it, but you do not want it messing with the car while tuning it.
Now here is where you have a choice, I have KR Decay rate multiplied by 2 for both High and Low Loads, then have Base Retard Multiplied by .5 I have had mine this way for 3 years now, and many, many track runs. The Knock Sensors are programed to be super sensitive to Knock in the V6's and this will help a lot. I would also suggest you 0 out that torque reduction table for tuning as well. This is not removing your cars ability to react to Knock, just cleans it up a little. That trans can take a hell of a lot more than what you are asking it to do as well bud, you have lots of room to play a bit here... lol

Get a scan after you have done this stuff and lets have a go at that timing table of yours. Then if you like, we can clean up that trans tune.

[Lastyear4gt]

Maybe I'm not fully understanding this but by multiplying the KR decay by 2 aren't you actually adding time until the KR is dropped and the advance is brought back on?

[MMGT1]

Higher #'s are actually making it rebound quicker in that table.

[Lastyear4gt]

Ok thanks.

[Russ K]

Higher #'s are actually making it rebound quicker in that table.

Correct,I double the stock table.

Russ Kemp