[ycilgin]

Hello,
I asked my mechanic about this but he was not sure what’s wrong, so he will futher investigate next week. Unfortunately I can’t stop thinking about it so I will ask for your opinion.
My M240i runs perfect when it gets to temperature after a cold start. After driving for 20-30 minutes (especially in heavy traffic) I feel like the turbo spools up so slow and the engine does not rev up as quickly as it used to do. My car runs a stage 1 map, everything else is stock.
I am leaving the datalog and an video (also I hear a strange sound) of what I am experiencing.

Video:
https://streamable.com/e8svkv

Datalog:
https://datazap.me/u/ycilgin/sorun-2...ta=5-6-8-28-48

Please, share your opinions.
Thanks!

[cooolone2]

Should probably run stock mapping and see first if issue is in the map/pgm... Just saying!

[AshtonPJT]

Originally Posted by ycilgin

Hello,
I asked my mechanic about this but he was not sure what’s wrong, so he will futher investigate next week. Unfortunately I can’t stop thinking about it so I will ask for your opinion.
My M240i runs perfect when it gets to temperature after a cold start. After driving for 20-30 minutes (especially in heavy traffic) I feel like the turbo spools up so slow and the engine does not rev up as quickly as it used to do. My car runs a stage 1 map, everything else is stock.
I am leaving the datalog and an video (also I hear a strange sound) of what I am experiencing.

Video:
https://streamable.com/e8svkv

Datalog:
https://datazap.me/u/ycilgin/sorun-2...ta=5-6-8-28-48

Please, share your opinions.
Thanks!

The duty cycle does seem high for 15psi but not far off, only 5-7% but this could be just from ambient factors. I would have him pressure and smoke test the system. Or even you could do it. Not that many spots that it can leaks from on the b58. Is this an ots map? I also see that duty cycle starts being pulled before it reaches the boost target this will cause slow spool up.