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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 > Log from Track Day



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      08-01-2023, 06:06 PM   #1
sbmws
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Drives: BMW 335i
Join Date: Nov 2015
Location: Melbourne

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Log from Track Day

I know this log is hard to read as its not your standard 3rd gear pull type log
but would appreciate if I could get some feedback

overall it seems pretty good?
my High and Low pressure Fuel pumps seem fine

Was running V7 E40 Map, Ambients were 30c 86f

I note my IAT went from 50c to 70c towards end of the session even with a 7inch IC and this is something I need to try sort out and the car started running richer going from 12-12.5 AFRs to 11-11.5 AFRs, as my tune is targeting an absolute boost value im guessing the hotter less dense air was the culprit of it running rich or would the engine have also done this to assist with cooling as my oil temps were around 130c towards the end?


https://datazap.me/u/sj/track-day-lo...og=0&data=3-18
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