6L80 TM removal?

[Rhino79]

This torque model table works. I reset base pressures to 0. Left my pressure limiters bumped up some and I run no torque mgt with .2 to .25 shift times. Result is consistant quick positive shift! Prior to this it shifted ok but with some inconsistent behavior at times. I think altering the base pressures so much was giving the adapts fits. I started with a 13% increase in the recommended tq model table in the ecm. I am going to add another 3-4% to see how that feels as it settles in over the next few days. So far so good!
I can't express how greatful I am that this came about! Thanks Ross ans all involved. This is a much better method in my opinion. Gm did well with all the pressure maps, and it seems to respond better to the tq model changes as it seems to keep as many tcm parameters untouched! There is a lot in the t43 and this table allows us to keep it simple and ha ve great results with minimal changes!

Ryan

[Taz]

Great news Ryan. Thank you for posting. Who would have thought the solution (or part of the solution) was in the ECM, not the TCM.


Cheers,
Taz

[Rhino79]

It seems to like the additional 4% on top of the 13% I flashed it in at lunch and haven't driven much but during logging the shift times have been so much closer to the commanded. I haven't hammered it yet, but I will on the way home. One thing is recommend when tuning a 6 speed. Starting off, its good to clear the adapts and go through the self clean and fast adapts learn. When you puts some miles on it and it settles in, if its close, just do a cal reflash. The mileage learning when the tune is close is better than starting the relearn from scratch. So save yourself some unneeded shift flares...lol. just flash it and drive it at that point.

[GMPX]

There is a lot in the t43 and this table allows us to keep it simple and ha ve great results with minimal changes!

Thanks for the feedback Ryan, it goes in line with what everyone else is saying, the trans now shifts the best it ever has. It's almost like an injector table on the ECM, it seems to make a global change to how the TCM behaves. I feel the TCM is so smart that it doesn't seem to need a lot of tuning if it's getting sent the right data (Torque).
I just finished off yesterday the torque tables for all E38 & E67 OS's, so the next release (due next week hopefully) will give everyone a chance to have a play. We will also be including a new PID to allow you to log the calculated torque value so you know what direction you are heading.

[Rhino79]

Great new Ross. It couldn't get any easier than this!

[Rhino79]

If anyone would like I can post up my tune files. 2010 SS

[GMPX]

I have slightly altered the .calz files you were sent for testing, so please don't pass those on, I don't want people getting confused when the new versions come out next week.

[Rhino79]

No problem. I could not believe the differnce.

[APS Luis]

I have slightly altered the .calz files you were sent for testing, so please don't pass those on, I don't want people getting confused when the new versions come out next week.

Did you get rid of the confucius stuff ?

[GMPX]

Yes, i did