Car info: B6 A4 1.8t, 8E0909518AK-0003 ECU/software, tt225 injectors, k04-15 turbo, stock MAF, stock intake, test pipe into 3" exhaust.
I have been reading the wiki and both the 1.8t and 2.7t community projects. I feel that I have a decent understanding of LAMFA based fuelling and have been modifying a stock file. Logs are telling me that it now does exactly what I want it to do fuelling wise (whether or not what I am telling it to do is good is a different question of course...)
Now I am trying to figure out the correct way to adjust the load tables, LDRXN, KFMIRL, KFMIOP, etc. When I was just starting out I for some reason thought that LDRXN was the only table that mattered. Now I know I was wrong. I've been reading more threads on this, and also spent some time reading the FR. I started trying to think about this in boost, but that was just confusing.
This thread was helpful, but also added further confusion because there seems to be a lot of debate:
http://nefariousmotorsports.com/forum/index.php?topic=7106.0I did also noticed the thread posted before mine asks a related question, but it wasn't super clear.
Can someone confirm if I have this right?
LDRXN: the maximum load (or cylinder filling) the ECU will ever ask for at a given rpm
KFMIRL: maps pedal position (?) and rpm to driver requested load
KFMIOP: maps driver requested load at given rpm to a percentage of LDRXN
So then final requested load essentially becomes KFMIOP(KFMIRL(pedal, RPM), RPM) * LDRXN(RPM). I feel like I mixed that up somehow, but that's my interpretation.
If I wanted to change those, it is suggested that I simply move the
In the 1.8t community tune I noticed that the KFMIOP axis and data were changed but the KFMDS (which shares both axis) data was not changed. Other threads seem to indicate that changing KFMDS is not necessary, but that seems strange to me.
This is quite a long post, but am I correct in assuming that if I have fuelling right, I can increase power until I either run out of injector duty cycle, run out of air (turbo can't keep up/too hot), or the engine components stop being able to handle the forces/torque? And I shouldn't be worrying about actual boost other than whether or not I can efficiently make enough of it to fulfill the oxygen requirements of the requested cylinder filling?
Is there an easy way to split a log file into smaller sections? I have several 30 minute log which is quite large but I only care about several 15 second sections. Can ECUxPLOT or ME7VisualLogger export only a section of the file? (I already know ECUxPLOT can identify WOT pulls, which is super helpful)
