Pretty much from what I've seen and read, seeing 40-60rpm is just noise and normal.If I remember correctly, the clutch slip values that you are seeing are in the normal range. I couldn't find the details in my email but I want to say 125 is when it is considered excessive.
I don't think you will have an issue tuning the TCM and likely Shep has a base map you can use to get you 90% there. If he doesn't have a map then I would start with the base OEM map or your stage 3 Cobb Tq table and initially tune using your lowest boost setting. It is an iterative intense process and I would advise against just grabbing large chunks of the map and making large global changes. I initially used this approach and it got the WOT tune done quick, but you will inadvertently increase lower TPW torque values that will make the part throttle shifts way too firm. When I read about people with a built trans complaining about harsh shifts, it is because the tuner increased clutch pressure well beyond what was needed for the actual torque being applied.Man, I wish I read this thread when I was busy guessing and checking clutch slip before we synced up on my other thread. We were doing a lot of the same trials at similar times and I could have provided the stock comparisons earlier. Anyway, before turbos and FF, I tuned just a midpdipe at 17psi on 91 oct. So maybe 525-550whp and I never got "zero" clutch slip. The bouncing between 5-30 has always been there. For data reference, I had the stage 3 Cobb Tq table in the ECM and their improved shift map in TCM. I did not alter their trans map back then, basically a little line pressure increase at lower TQ's and stock solenoid current. Trans shifted firm and launches were always sub 3 sec on MPSS. Noticeably harder launch (due to press increase). Will start where you are here when I get the Shep stuff installed and let you know how it works.
I switched over to the "Clutch Torque - Extended TPW" table by selecting it in the "Advanced Engine Parameters" settings.ANY UPDATES?
you sir are a damn genius, Thank you! totally workedYour TPW value on the far right cannot be lower than the values to it's left. Do this, copy the TPW values in the "Clutch Torque" table and then paste them into the "Clutch Torque - Extended TPW" table. Once this is done then you can raise the TPW in the last column to the desired number.
Send me a PM with your email and I'll send you my map in Excel so you can cut/paste to try it. It is based on 20bar line pressure, but regardless is more aggressive vs stock. I'll need to post a graph showing the relationship between MAP and TPW because I run a blow through MAF setup and my MAF scalar is really high, which might slightly skew my TPW values vs a normal tune.you sir are a damn genius, Thank you! totally worked