TCC Unlock, Slip, Lock - What does it mean
Can anyone shed some light on how these tables work?
On the 6-speeds (either 6R80 or 6F55), the OSS values for 1st and 2nd indicate there's no lockup being commanded because they are very high.
But for 3rd gear, the OSS values for Unlock are small, Slip is larger, and Lock is almost always maxed out (7000+ RPM). Yet, I notice the torque converter almost always locked up in normal driving bar the short unlock/lock from throttle tip-in.
I'm trying to command as much lock-up as possible at WOT and am curious as to how others have tuned their Ford transmissions to achieve this. With the stock settings, my 6F55's have maybe 300-500 RPM slip during/after shifts, and is locked up at WOT 3rd gear mid-way (5000 engine RPM) and same for 4th gear.
Should I reduce the OSS values for Lock so that it is slightly higher than Slip? Or set them in between Slip and Unlock?