I plan on swapping in a 3000stall over the 4th of July. I have done some of my own tuning and had someone help me with the tranny tuning (TCC, shift time, line pressure tables). Is there anything specific that should be adressed before driving with the stall? Should I switch the tranny tune back to the stock values? I keeping my fingers crossed I wont have a stall wall issue.

 

Make sure it is shifting by rpm at WOT and raise the VSS diagnostic threshold up from 3000. You can do a search to get info on the 1-3 problem - it's being discussed elsewhere.

 

Thanks for the info. I got the VSS taken care of and the tranny is shifting by rpm (that took me months to figure out--Im an idiot!). What about the TCC? Should that be matched to my stall or some other values? I know a few of them are set really high or low, depending on what table. Im not sure what they all do, but it helped me at the track. Like I said, I didnt do any of the tranny tables. Thanks for the help.

 

There are a bunch of parameters associated with the torque converter clutch. I'm not sure I understand your question relating it to stall.

 

well, my TCC engage/release values are set to about 200mph and the Hot TCC values are set to 255mph.
My TCC forced lock WOT lock speed threshold is 255 unlock/254unlock for the 2nd, then 100/95 for 3rd and 4th. Would a higher stall necessitate changing any of these values for optimal performance? Im not too smart on automatics and how the computer regulates the 4l60e. Thanks for the reply.

 

I guess it depends if you have a lot of slip at high rpm and if you think your 1/4 time will improve if you lock up at WOT and when you want that to happen. If you have a lot of horsepower, then you probably need a beefy converter with multiple clutch disks. I set mine to not lock up at WOT - it is a Vigilante 3000 with a single clutch plate. I am admittedly not an expert in this exact area, though - others have done a lot more experimenting with it.

You can also check your logs and see if it actually locking up at 100 - or not.

 

ok. Thanks for all the help, I appreciate it. Ill play with it once I get the converter in.