Originally Posted by
bluessv
04blackgmc and lsx,
You guys seem to be leading the charge on these great forums. I'm sure you guys could work on a tune that is slightly firmer than stock with considerable TM left in during the shifts whilst driving around town. But also incorporate firm, sharp, hard hitting shifts with considerably less TM for when you guys want to race.
I stronly believe the HP software will allow such calibrations by using the Shift Torque Factor Adder tables in conjuction with the Adder Modifier table; remembering they are multiplied with each other before adding the Shift Torque Factor.
As far as the TM aspect of such a tune, I would think by having a smaller negative numbers in the Adder Modifer table around the low torque/rev range and then a larger negative number up higher in the torque/rev range would allow such a calibration. As long as all the Shift Torque Factor Adder table is set to "1" or close to it and the Shift Torque Factor table remains stock too.
An example would be leaving a number such as "-0.2000" or "-0.2500" in the lower end of the Adder Modifier table. With the TM equation in mind, the TM applied to a shift would look like this:
[(1 x -0.2000) + 1] x 1 = 0.8
Or in other words the TCM would only apply 80% of the stock TM to the shift which would allow 20% of the torque to remain during the shift.
As you got higher in the rev/torque range (giving it a hiding!!) you could use a much higher negative figure (-0.8500) which would allow much less TM to occur. the TM equation would then look like this:
[(1 x -0.8500) + 1] x 1 = 0.15
Or in other words the TCM would only be applying 15% of the stock TM to the shift and allowing 85% of the torque to remain throughout the shift.
Of course I nominate the Shift Torque Factor and the Shift Torque Factor Adder tables to be "1" for ease of explaining my theory but fine tuning can always be considered with the use to the TM equation. The fine tuning would allow different TM settings per shift. this would allow you to have a medium level of TM being left in the shift for the 1-2, 2-3, 3-4 shifts but by playing with the 4-5 and 5-6 Shift Torque Factor Adder numbers you could be getting close to stock TM.
Hope that all make sense??