Originally Posted by
murfie
Over doing it / thinking it with the calculators.
Driver demand is torque at the wheel. Autos and manuals have different driver demand calculations as a manual transmits torque to the wheels different than an auto does. Most of the driver demand in an auto actual is lost to slip in the transmission calculations, so peak torque is demanded until the RPM it occurs at. Actual wheel torque the driver is demanding is then in the transmission settings. Then other calibrations, like the GT350, have maximum engine torque tables that limit the driver demand before the torque is even calculated through the clutch into the transmission. Then if the engine is calibrated incorrectly and the ECU thinks there is more or less air Load than there actually is, the torque comes out wrong. In order to keep the pedal having a feeling of still being in control, ETC torque is corrected to what ever engine brake torque is being calculated as, so if the pedal is decrease, torque will be, if its increased torque will be. People will say changes only make the pedal feel different. Other manual transmission calibrations the DD table will look just like a dyno graph of torque at the wheels for different throttle positions. There are so many different paths in every ECU, its more about following the right torque path and correcting what needs to be corrected.