Hi guys, I'm new to the forum. I've been looking for information on how to properly go about tuning the late N55 motor (version without commanded WG) for a while, I've done some experimentation but still have a few issues to iron out. Some guidance or links to good resources would be greatly appreciated!
For context I'm running a F21 M135i EWG with FBO and the 8AT flashed.
I started off by taking a log of the stock tune to use as my base. I recorded a peak boost of 9psi (oof). Then I set 'Limitation by automatic gearbox' to 3 which is meant to disable TCU torque limits in the DME. I also set 'Torque request ceiling (Auto)' to 510 across the board, as well as 'Modelled torque limit 1, 2' to 510 across the board. Finally I set 'Boost limit multiplier 1, 2' to 3 across the board.
This increased my peak boost to 11psi, but at WOT Boost (pre-throttle) rises above the boost target and causes throttle closure. Do I just need to increase the Boost limit multiplier again, or am I missing something else?
For context I'm running a F21 M135i EWG with FBO and the 8AT flashed.
I started off by taking a log of the stock tune to use as my base. I recorded a peak boost of 9psi (oof). Then I set 'Limitation by automatic gearbox' to 3 which is meant to disable TCU torque limits in the DME. I also set 'Torque request ceiling (Auto)' to 510 across the board, as well as 'Modelled torque limit 1, 2' to 510 across the board. Finally I set 'Boost limit multiplier 1, 2' to 3 across the board.
This increased my peak boost to 11psi, but at WOT Boost (pre-throttle) rises above the boost target and causes throttle closure. Do I just need to increase the Boost limit multiplier again, or am I missing something else?
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