Originally Posted by ianf
Cool. also dyno'ing this weekend. Only way to tell.
hey, ian - can you start the dyno in M mode first and go into non-M mode? Zuzu's result was different to other results posted from reliable posters. I think his results are to do with the cold engine - boost on non-M mode seems to be on the low side.
The technical director in M actually stated that the ///M button only change throttle mapping and closes the waste gate, i.e. no power change.
Running in M mode first will avoid any issues with cold engine.