its oil temp related, in the mapping there is a limitter when exceeding 115°C oil temp the power will be reduced, most BMW engine have this feature. time to upgrade the oil to better quality and thickness over the stock 0W20 water.
yeah there was a video on youtube before the actual launch featuring tetsuya tada explaining some stuff and features on the car, he mentioned this himself.
looks nice, toyota originally had it installed too in the development stage but tossed it in the bin as it induced to much understeer on stock suspension and tires.
In europe we have a Gasoline Particle Filter. Its a filter like on diesel cars. In usa they dont have that. So we have more restrictions than you guys.
Also downpipe is different in europe with a flange instead of usa it is a slip on.
Today we managed to get even more (521hp-775Nm) . But now we are at the absolute max on stock turbo and stock gfp + catback on 98ron. Next we will move on and go for hybrid turbo.
be carefull not to use the wrong bins or bins from a 140i or something, the tables and adresses are totally different.
We spent 3 weeks on the dyno reading, and custom tuning a bone stock supra, using mhd as flashing tool.
but we did a lot of work on a custom damos file (XDF) to find all...
from your AFR curve, its running way too lean so it might be severely knocking, these cars target 14AFR in boost stock though, but with custom tune we rescaled the targets to 11.8/12 to aid in cooling, seeing great gains also.
Do propper logging or get a quality tune, those engines have a very...