Originally Posted by cBax
My guess is boost leak. Your boost peaks and stabilizes before your load does. The turbo is working harder to maintain the target so load keeps climbing. Then as boost starts to drop, load comes back to where it should be.
just a guess. But that's where I would start.
I spent a lot of time trying to find a boost leak after moving to my grimmspeed TMIC, but I could never find one. Using my boost leak tester I could hear some noise by the TMIC, but I could never find anything. Maybe the TMIC has a leak in the core?
After changing the TMIC my spool is slower by about 200 RPMs and my WGDC increased which makes me think there is a leak.
Brian I would be interested in optimizing my existing tune, but this issue seems mechanical related