Is anyone working on something that would make modifying files easier and more user friendly?  Id like to see a more user friendly graphical interface for DIY tuning.  In other communities, like the Subaru community, free tuning softwares like romraider logger and http://www.romraider.com/ and EcuFlash (similar to nefmoto flashing software in idea) are really keeping those communities DIY friendly.  The b5 s4 community could really benefit from something like this.   A reasonably priced tuning software would be very much so welcome, something like DSMLink or HPTuners or COBB Pro Accessport (hand held one is crappy ots tunes)?

I have read until my eyes were bleeding on the Romraider forums because of how simple and user friendly their setup is its much easier to communicate tuning ideas and concepts.  There are giant articles on the knock strategies and other aspects of tuning a turbo Subaru.  While the S4 Wiki has some great tuning stuff, it is lacking detail and depth that the Subaru community has.

I think there is great entrepreneurial possibility for you tech savvy guys to build a tuning software and market it to the s4 community, or release it for free if you are so generous with your time.

Really looking forward to what you guys have to say about this, or perhaps point my nose in the right direction if people are already working on this.

Never going to happen, because the Bosch ME7 ECU is a million times more refined and complex than any of the japanese stuff of the same era.

Maestro attempts to do this, but like prj said, there are no shortcuts in ME.

I am sure they have proper hardware emulators that allow them to make changes real time as engine is running. As a software, Tunerpro is perfectly fine for off line coding, it is all you need. To take is a step further... somebody would have to essentially write an engine simulator that would run the ME program in an interpreter... if somebody pulls something like this off, I am sure he will find himself employed by car manufacturer 1/2 way into the project.

There are too many feedback control loops in Motronic (compared to the very rudimentary feedback loops in japanese and american ECUs).

You can't simply add a slider and expect the software to be able to automatically adjust all the associated maps that need to be changed, even with an engine dyno.

at the end of the day, proper calibration of Motronic requires a human. In theory, a lot of it can be automated (with the proper equipment, and man months if not years of development effort), but certainly not all of it.

Maps are only listed as letters ie krkte as the person that created the .xdf named them like that! Take the time and change them to what ever you want!

The pattern is even better if you know German.

KFZW for example would be Kennfeld Zündwinkel. Kennfeld is a map and Zündwinkel literally means ignition angle.