This is the SECOND 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 various observations while going through the test results on the BASELINE recordings. The baseline was the 2014 Silverado with no modifications. The baseline was recorded to allow me to compare any measurements from the modifications to a stock vehicle.

You can access the files used in these experiments 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 (you're here!)
Part three: Max Pressure, Max Press B, Max Clutch, and Max Line    • HP Tuners & 6L80:  THIRD video coveri...  
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...