Originally Posted by MrTruckDriver
thanks i didn't realise the converter locks up so often. also looks like pretty friendly software. would it let me disable the converter lockup just in tow haul mode?
You can tune it that way by maxing (318) all the cells in the Pattern "A" TCC Apply/Release vs Speed vs TPS, But like Supton said.....That would be counterproductive to keeping your trans cool.
Originally Posted by MrTruckDriver
it sounds like towing is hard on the tc clutch.
Not as much as the PWM apply, The TMBX 300mm converter used in late 4L60E's is actually a very well built unit....Tuning out the PWM apply could very well extend it's life to EOL of the transmission.
Doing this is very simple.....Set all cells in the Minimum TCC Duty Cycle vs Line Pressure vs Trans Temp to 90% & Set all the cells in the Maximum TCC Duty Cycle vs Line Pressure vs Trans Temp to 99%
There has to be a differential between minimum & maximum or it does weird things!! 90% will still fully lock the converter clutch.
Factory converter clutch pistons have damper springs so it won't be very harsh at all. The Billet front/Billet TCC piston stall converter in my Camaro hits pretty hard.
Here's a stock Minimum TCC Duty Cycle table...