Transmission Tables
04-09-2008, 10:13 AM
#21
TCI converters have pretty weak holding capacity, you need to
look at ways to raise the line pressure at light loads (where stock
tune commands 0% pressure / high force motor current but the
motor can be making significant torque). Holding torque vs motor
torque is the slip issue.
You want to look at TCC_Mode and TCC Slip RPM to see if it's a
command (misfires) or a result (pressure) problem.
I significantly reduced the force motor current in the 0% and
adjacent columns as a "patch" for the TCI converter slip. But
for some models there are also "*****" for the TCC-locked line
pressure adder which is more appropriate if available.
look at ways to raise the line pressure at light loads (where stock
tune commands 0% pressure / high force motor current but the
motor can be making significant torque). Holding torque vs motor
torque is the slip issue.
You want to look at TCC_Mode and TCC Slip RPM to see if it's a
command (misfires) or a result (pressure) problem.
I significantly reduced the force motor current in the 0% and
adjacent columns as a "patch" for the TCI converter slip. But
for some models there are also "*****" for the TCC-locked line
pressure adder which is more appropriate if available.
Do you have a screen shot of your force motor current table. The 0 colum is currently 1069 all the way down. I would like to compare ours.
04-09-2008, 02:25 PM
#22
TECH Regular
Thread Starter
iTrader: (6)
Join Date: Mar 2004
Posts: 438
Likes: 0
Received 0 Likes
on
0 Posts
That makes sense Jimmy. It's like it goes into lockup, but it doesn't hold so maybe that's exactly where we're missing the tune. Like Josh said, if you don't mind take a screen shot of your table if you don't mind and maybe we can try it and see if that makes a significant difference for us.
