So am I right in summarizing that in Sport the torque requested (throttle pedal) and torque demanded has a direct 1:1 relation, and in the Normal setting below 20% torque request and 2000 rpm engine speed, the normal setting trims the torque demand, yet above that it increases the torque demand? That is very strange.
So I was trying to keep it simple last night and to be 100% honest I have never tested these maps before, I never really saw a need personally so I just never did. Most of this is deduction, detective work and testing. There are actually 3, well 4 but one is for limp mode, Normal, Comfort and Sport. Sport is obvious but I'm not sure which is used in P500 vs P400 mode (comfort v normal) simply because its not really be on my radar. To make things more confusing there is another 3 maps that influence these maps and these chain up to another 3 or 4, that then can be overrode by DSC, SMG ect ect . And theses are all shared with E9x M3 so some might not be applicable based on the config. So it's lot to figure out. Regardless I here are all three.
How can i modify these parameters myself?
First you'll need a KESS OBDII version, the BDM is pain if you're just tweaking maps or an FGTech V4. Clones work fine unless you have the cash for the real deal(100 vs 1000s). Though I have an FGTECHV4 clone and the software is hacked from china and it triggers virus warnings. So I never used it, though both run in VMs for me since I really don't trust anything from china any way.
There is a way to tweak the WINKFP files but I never attempted it.
It would be nice to restart the whole tuning effort, I was sad to see what happened to the original effort. Sadly I bought a new house at the time and couldn't dedicate time to posting by the time I came back it was dead. The granddaddy of all this, the E49 M3 guys, really worked well together, shared knowledge, and showed what was best about it all, COMMUNITY and Passion for the car, wish that happened here too.