Hardware & BigComm Software User guide

BigStuff3 Pro SEFI System (LS1)
Version 1.0 119
86. Transmission (Optional Feature – Available August 2004)
Gear Box
Select the type of transmission the GEN3 ECU will be controlling.
Gears
Select the number of gears the transmission has. The 4L60E and 4L80E transmissions have 4
forward speeds. The only rear drive GM transmission with 5 forward gears is the 5L50E
transmission in the Cadillac XLR.
Torque Converter Lockup
WOT TCC = Wide Open Throttle Torque Converter Clutch.
If WOT TCC is selected the GEN3 ECU will lock the torque converter clutch when the throttle
is wide open and the transmission shifts from first to second gear. This setting will eliminate
torque converter slip and helps improve Elapse Time (ET) and Mile Per Hour (MPH).
Torque Converter Control
These transmission settings were included to control the transmission during part throttle driving
conditions to improve overall drivability.
There are two settings:
Torque Converter Control (TCC) Rate – The rate in which the converter is locked or the
clutch is applied (more or less firmly). A number from 1 to 255 can be inputted. The larger the
number the quicker (more firmly) the converter clutch is applied.
To set up, go to Gear_Box
To set up, go to Gears
To set up, go to Torque_Converter_Lockup
To set up, go to Torque_Converter_Control