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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Stage 2 BM3 Log Check

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      11-28-2021, 03:39 PM   #1
AdventureNoodle
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Post Stage 2 BM3 Log Check

Hey everyone, I ran into some issues with the stage 2 multimap for Bootmod3. Essentially what happened was my car would misfire / stutter (do the throttle release anti-lag brap sound) as it was going past 5.5-6k RPM. It got worse when I switched to the 91 map (map slot 2) or the ACN 91 map (map slot 1).

I decided to switch over to the normal stand alone Stage 2 93 map for a while and that fixed all my issues, but just to err on the side of caution I switched it over to the Stage 2 91 map instead, just in case I am on a road trip and unable to flash the car or I get a bad batch of 93.

I did a 3rd gear WOT pull into 4th and I wanted to see if anybody saw anything weird on this log or if it looked alright. Any feedback is appreciated.

Mods:
CSF Intercooler
CSF Radiator
CSF Oil Cooler
CSF DCT Cooler
ER Chargepipe
VRSF Catless Downpipe
NGK spark plugs gapped to .020
BM3 Stage 2 91

Log:
https://www.bootmod3.net/log?id=61a3...90c624dd4dcd7e

Thank you!
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      11-28-2021, 04:49 PM   #2
Nandohatesyou
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Looks similar to what I'm experiencing on the thread before yours, hope you get this resolved and in turn get mine resolved as well! I'm glad to see you have NGK plugs so that narrows down one less thing it could be on my mind. Running the same MAP, just ACN.
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      11-28-2021, 04:59 PM   #3
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Quote:
Originally Posted by Nandohatesyou View Post
Looks similar to what I'm experiencing on the thread before yours, hope you get this resolved and in turn get mine resolved as well! I'm glad to see you have NGK plugs so that narrows down one less thing it could be on my mind. Running the same MAP, just ACN.
Are you using the multimap or the stand alone ACN91 tune?
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      11-28-2021, 05:53 PM   #4
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Looks fine. Very similar to what I’m seeing with very similar bolt-ons as far as timing corrections are concerned.

I’d stay on that 91 map and wouldn’t push it further without more octane.
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      11-28-2021, 07:53 PM   #5
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Quote:
Originally Posted by Wolfman’s Brother View Post
Looks fine. Very similar to what I’m seeing with very similar bolt-ons as far as timing corrections are concerned.

I’d stay on that 91 map and wouldn’t push it further without more octane.
Solid. Thank you! Yeah I'm running the stage 2 91 map with pump 93, so I am hoping it is very safe in that regard.
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      11-29-2021, 10:08 AM   #6
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Quote:
Originally Posted by AdventureNoodle View Post
Are you using the multimap or the stand alone ACN91 tune?
I'm using the standalone Stage 2 ACN 91 map; I'm going to flash to standalone Stage 1 ACN and report back my results! I think maybe the fuel pump just can't keep up, which is a little odd.
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      12-02-2021, 09:21 PM   #7
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Quote:
Originally Posted by Nandohatesyou View Post
Quote:
Originally Posted by AdventureNoodle View Post
Are you using the multimap or the stand alone ACN91 tune?
I'm using the standalone Stage 2 ACN 91 map; I'm going to flash to standalone Stage 1 ACN and report back my results! I think maybe the fuel pump just can't keep up, which is a little odd.
How was the stage 1 tune?
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