Quote Originally Posted by poindexter View Post
Stall is a function of convertor turbine size, ie. the smaller the higher the stall.
You can do it in software only by engaging the lock up early
ROFL... excuse the flash back... just recalling the number of dudes I used to get into 'animated technical discussions' with on this subject and how to use a TC Lock Up Switch mod.

Having said that I couldn't find any Tranny Joint over here who would touch my 4L85 / GM Supermatic Controller combo.
I thought the Commodore specialists would have no issues but they wouldn't have a bar of it.
Bit the bullet and did the Lock Up programming myself.
Took a lot of trial and error but got it so I was happy in the end.
Main issue I had was setting the maps so that the Gear change points and TC Lock and Unlock points were suitable.
Top gear was easy but the intermediate gears got a tad messy 'cause the engine is such a low and slow revver