I installed a Procharger on a 2018 C7 A8 Grandsport. The car runs great and makes good power 585 rwhp on 7.5 pounds. However on every run all the timing is pulled around 6200-6400 rpms. The logs are showing me its knock retard, I have verified its not removing timing for any other reason that I can log. Its not pulling for torque management. I have max knock retard set at 16 degrees and within 100-200 rpms it will pull every last degree it can at 6200-6400. I have done so many pulls and tried so many things that once i was convinced that it was false knock, i set max knock retard at 0 degrees made a pull with zero issues all the way to 660 and made 604 rwhp. Im commanding a 12.20 AFR but have tried everything from 11.5 to 13.5 without a change. I have lowered timing as far down as 4 degrees in those rpm ranges all the way up to 16 degrees and it makes no change just pulls all the max allowed timing that im giving it. Im hitting no limiter that I can see, fuel pressure is dropping a few hundred psi, I have played with injection timing and VVT. During multiple pulls i may get a degree or two of spark nock in different rpm areas but at 6200-6400 it just all gets pulled no matter what. I even set the knock sensor multipliers as high as 6 and still pulled all 16 degrees in the rpm range, actually up to 18 on some pulls . Someone please check out the attached tune and two logs, I'm dying trying to figure this out and its probably something simple. I have included the calibration to look over and two different datalogs with different things mointored.
Thank You
Bad383TA