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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Feedback on JB4 BEF log wanted.



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      02-16-2020, 09:34 PM   #1
JPuehl
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Drives: 2011 135i N55 DCT
Join Date: Mar 2015
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I know there's a subforum on the N54tech forum for log reviews but I'm hoping to get helpful feedback about my log. I made a change to the OTC JB4 BEF richening the bottom end and leaning the top end a bit. I haven't changed anything else yet. I'm looking for feedback on changes I should consider making. I have a N55, PWG, recent PS2 upgrade, FBO and use 98 octane (92 pump gas with BOOSTane octane booster). This is the 4th of 4 pulls to give time for adaption.
Spark plugs are NGK 97506 SILZKBR8D8S gapped them at .025 and have ~100 miles on them now.

https://datazap.me/u/jpuehl/afr-adju...1-18-25&solo=4
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2011 135i DCT - FBO PS2


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Last edited by JPuehl; 02-18-2020 at 10:49 AM..
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