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BMRDude BMRDude is offline
Junior Member
Posts: 75
Join Date: Apr 2014
Car: 2012 550ix
Default 10-20-2017, 08:12 PM

M5, I run between 23.5 and 24 psi withe the right fuel. Haven’t tried higher cause I am starting to run lean with trims maxed out. All map 6 no special settings. Just ramping the boost up to 4000, leveling out thru 5500, then tailing down a bit to redline.

Using FOL at 90. I get a drivetrain error but this error does not reduce power so I just ignore it and clear it later. I presume this is a high fuel pressure warning.

I run new TMAP sensors, one step cooler plugs gapped to 0.022.

I may try to go higher boost now that weather has cooled.
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