This is the THIRD video from a multipart video series covering what the calibrations actually do in the 6L80/90 transmission. As you will see in the video, I have outfitted a 6L80 transmission with pressure sensors for each clutch and I recorded the pressure readings while shifting the transmission on our Superflow Dyno. I recorded baseline runs and also single modifications using HP Tuners.

In this video, I show how modifying Max Pressure, Max Pressure B, Max Clutch, and Max Line alter the transmission pressures.

In this video, I summarize the results for each of these calibrations. For a full report of each shift and each clutch, access the presentations and the raw files through my website at:
https://www.automotivetextbook.com

You can get the free software to open these files at:
www.picotech.com
www.picoauto.com
www.hptuners.com

I will update this list of completed videos as I make them, but right now, these are the available videos in the series:

Part one: Intro and what you need to know    • HP Tuners and the 6L80 - What does it...  
Part two: HP Tuners and the 6L80 - Baseline observations    • HP Tuners and the 6L80 - What does it...  
Part three: Max Pressure, Max Press B, Max Clutch, and Max Line (you're here!)
Part four: XYZ Pattern, Adaptive Oncoming and Offgoing :    • Part 4 of the HP Tuners and the 6L80:...  
Part five: Torque Adder, Transition Time, and Output Torque Factor    • HP Tuners and the 6L80 - Part Five - ...  
Part six: HP Tuners and the 6L80 - Part Five - Torque Adder, Trans Time, and Output Torque Factor    • HP Tuners and the 6L80 part SIX - TCC...