First post here and have been doing quite a bit of reading alongside some videos from Goat Rope Garage and a few others. Doing some basic tuning items on my Suburban 2500 with the 6.0/4L80e setup to eliminate the PE cycle timing and remove some of the TQ Management. Tossed the changes below once I had the speedo corrected. Not looking to set the world on fire with the Suburban, but wanting to clean up some of the slow response and fat in the stock power tune.
Engine > General > TQ vs RPM - 10,000/per field
Engine > General > Spark Retard vs Torque Reduction - removed 50%
Engine > Fuel > PE > Delay - 0 Seconds
Engine > Fuel > PE > Enrichment Rate - 1.000
Trans > Shift Pressures > Upshift > General - Performance field applied to Perf & Normal
Problem - Cruising 60mph and give it 100% tps the truck seems to unlock 4th and pull up to 3K or so and increase speed, but not drop to 3rd gear like you'd think. Passing power is very limited and assuming I am missing a setting to not allow it to kick down to say 3rd when cruising 60mph or on the highway trying to pass etc... I have attached the file I'm currently running for review and thanks in advance for any help, direction or pointers that come from this. Again not wanting to dial this truck to the gills, but wanting to clean up some fat and at stock power levels, have all of it on tap when needed.
Ken