N55 Stutter
Hello All,
I'll throw in my 0.02$ on the high rpm stutter,
It may a torque limitation map being reached, say the mapping only allows XXX Nm (gear dependent & rpm) The colder temps creates more torque.
(The Diesel TCU has a torque limitation map, and most likely the Gasoline too)
(the Diesel is limited in 1st gear)
From the video it seems like a torque modulation - possibly by throttle rather than the fuel cut/redline type of torque limitation.
Or the additional boost may create some type of compressor surge.
or wastegate management/feedback to oontrol torque/boost
/ideas off
Regards,
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BMW CCA Member
2017 BMW UDE Finalist
rides : 2004 E46 M3 6MT (sold), 2011 E90 335d (daily), 2014 F22
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