I just picked up the BMW Datalogger Software. Here are some 3rd gear data logs I did. 2008 e90 m3, 6mt, all stock. 91oct gas M mode activated.
Coming from a 335, datalogging is pretty common. I am pleasantly surprised that the IAT remained very stable thru the runs (NA FTW).
One question I do have is regard the IGN. I'm not very familiar with how the m3 IGN is suppose to be but is this normal? I see a couple timing drops and the timing seems to reduce around 6000rpm range and then pick back up towards redline?
Let me know.