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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > BM3 Stage 2 Data Logs. Need Opinions

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      03-27-2023, 02:20 AM   #1
limk2012
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Hey guys, so I'm new to reading data logs and wanted to get outside opinions from you guys whether this is normal or not.

My car:
2017 MT Stage 2 (93 Octane) OTS by BM3 with 36k mi / 58k km
VRSF intercooler
Wagner Catted Downpipe
VRSF charge pipe
Dinan Exhaust
Bosch OEM equivalent plugs just installed & gapped at .028"

My data logs (DSC off in 3rd gear from ~2500 - ~6500 rpm):
https://www.bootmod3.net/log?id=6421...729b88eb59ac8e
https://www.bootmod3.net/log?id=6421...729b8bf2cee5b1
https://www.bootmod3.net/log?id=6421...729b8bf2cee5b4

From my understanding (I could be very wrong), everything looks okay except for the ignition timing where it's kind of all over the place up top. Is this normal for this engine or could there be something that needs addressing? Any help would be appreciated as I'm very new to all of this!
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      03-28-2023, 05:09 AM   #2
carchrism5
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PTF has pretty good customer service where you can send your logs to them for a tuner to check and give some feedback.
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      03-28-2023, 01:13 PM   #3
limk2012
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Quote:
Originally Posted by carchrism5 View Post
PTF has pretty good customer service where you can send your logs to them for a tuner to check and give some feedback.
Awesome thanks for the tip!
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      04-12-2023, 04:12 PM   #4
ericlr1225
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Quote:
Originally Posted by limk2012 View Post
Hey guys, so I'm new to reading data logs and wanted to get outside opinions from you guys whether this is normal or not.
Everything looks fine to me. corrections are within the range.
as long as your butt doesn't feel any stuttering(short burble farts) while pulling

If ethanol is available, 2gallons of E85 would help you clean the timing.
If not, I'd do some logs when summer just to make sure everything stays in safe side. Enjoy~
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      04-12-2023, 04:15 PM   #5
limk2012
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Quote:
Originally Posted by ericlr1225 View Post
Everything looks fine to me. corrections are within the range.
as long as your butt doesn't feel any stuttering(short burble farts) while pulling

If ethanol is available, 2gallons of E85 would help you clean the timing.
If not, I'd do some logs when summer just to make sure everything stays in safe side. Enjoy~
Awesome thanks for the input. I ended up dropping down to a 91 octane stage 2 tune while still using 93 fuel, and that helped clean up the timing a lot
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