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  1. Replies
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    Agreed. Did you happen to scope the signal T? If...

    Agreed. Did you happen to scope the signal T? If the false knock is only happening at certain frequencies I think one would be better off tuning out the unwanted frequencies with a L-C notch filter...
  2. Update: Didn't have enough time to pull a log on...

    Update: Didn't have enough time to pull a log on cold start this a.m. in the snow. I currently have a value of 11.3 in the 0/0.00 cell in the Fuel (Min Cat Protection Mode) table and the start in...
  3. I'll change it back to 14.7 this evening and log...

    I'll change it back to 14.7 this evening and log a cold start tomorrow morning. Unfortunately with the temperature as low as it is I don't trust flashing the DME without a good battery charger--even...
  4. It's odd to say the least--starts at 15:1 @ t=8s,...

    It's odd to say the least--starts at 15:1 @ t=8s, starts climbing to an odd event at t=20s, then it settles to 14.7:1 @ t=30s...all the while in Fuel Mode 4.

    40961
  5. Interesting; I pulled this datalog...

    Interesting; I pulled this datalog at lunch to see what fuel mode the N54 is in at startup. I'm sure this is nothing new to some, but new to me.

    The DME seems to step through Fuel Mode 2 for...
  6. Sounds like I need to investigate this table a...

    Sounds like I need to investigate this table a bit further. My impression was that it is only active under Fuel Mode 6 events...luckily Cobb will log the fuel mode. Has anybody logged fuel mode...
  7. Is that your 3D Fuel Scalar table? If so, how did...

    Is that your 3D Fuel Scalar table? If so, how did you get the extended resolution of an extra significant digit? (Mine only goes to 1.XX)
  8. Good call, I need to look into one of those. This...

    Good call, I need to look into one of those. This is the first time I've had to park outside in these conditions (I miss my 2.5 car garage!!!) and some lifestyle adjustments are necessary.
  9. :handgestures-thumb: Thanks BuraQ,...

    :handgestures-thumb:

    Thanks BuraQ, implemented this last night. While my cold start in 7*F temps this am wasn't perfect, it was substantially smoother than the start I had yesterday in 13*F...
  10. Cold Start (Open Loop) Fuel Control -- E85 in Cold Climates

    Cold weather has officially set in up here in the Great White North, which is giving my car fits on cold starts with E85 blends. Following off of SAE research presented in 2009-01-0620, approximately...
  11. I think I'm going to rename the bookmark I use...

    I think I'm going to rename the bookmark I use for this forum from, "BB N54," to, "My Stories," for all the nonsense drama that goes on.

    :pop:
  12. Congratulations! Impressive work. I look...

    Congratulations! Impressive work.

    I look forward to seeing the results of your external boost gauge, whatever they may be.

    By the by, you don't really drive around with that sticker on your...
  13. Awesome Terry, and thank you!!! Your timing...

    Awesome Terry, and thank you!!!

    Your timing could be better though, it's snowing here in Wisconsin and that pretty much means no logging until April. :sleeping-sleep:
  14. The dual-mass flywheel isn't the worst of...

    The dual-mass flywheel isn't the worst of ideas--it allows one to use a clutch without a sprung hub in a modest, daily-drivable car. Just another solution to smooth out engine pulses from the...
  15. Ok, I've read this thread twice now and I'm still...

    Ok, I've read this thread twice now and I'm still not sure what problem it is you're experiencing. Are you referring to the oscillating (and opposed) bank lambdas, as shown here? Incidentally, that's...
  16. I did not. Thanks for the head's up! Now if I...

    I did not. Thanks for the head's up!

    Now if I can get myself out of the habit...it's hard to teach an old dog new tricks.
  17. This was always one of my sticking points with...

    This was always one of my sticking points with the JB4, and why I abandoned it (for now as I'm still on stock snails and won't exceed DME boost limits).

    First off, I don't like the idea of...
  18. Did you pop in a 3.5 bar MAP sensor and re-scale...

    Did you pop in a 3.5 bar MAP sensor and re-scale the MAP Conversion table setpoints accordingly for greater accuracy at higher boost? I always have been curious to see if that would work...not...
  19. Good point and something I hadn't considered. I...

    Good point and something I hadn't considered. I believe the N54 uses a version of 0 281 002 487 or 0 261 230 042 shown on page 34 of this BOSCH MAP datasheet. Characteristic Curve 1 in conjunction...
  20. I have the SMFW/Spec 2+ installed but have been...

    I have the SMFW/Spec 2+ installed but have been keeping quiet as there appears to be a problem related to the installation (seems like the driveshaft wasn't reinstalled properly) and didn't want that...
  21. Please Sticky, don't post pictures of your...

    Please Sticky, don't post pictures of your 'skidmarks.'

    Also, hilarious freakin' thread! :)
  22. Never heard of them. A lot of forum members...

    Never heard of them. A lot of forum members (myself included) picked up MFactory helical LSDs back in March when they came on the market. Have yet to install mine--incidentally I replaced my DSC...
  23. Jesus, what the hell happened to this thread?...

    Jesus, what the hell happened to this thread? Sticky, is it possible to make the words, "S65," and, "M3," automatically censored in the N54 section? Threads continually going off-base for pages upon...
  24. Replies
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    This thread's intent reminds me of an old Lewis...

    This thread's intent reminds me of an old Lewis Black quote:

    "...if you're going to send someone to catch an $#@! don't send a bigger $#@! to get him, because then he makes the original...
  25. Keep in mind ATR can manipulate the units the...

    Keep in mind ATR can manipulate the units the user sees. While I have no evidence to suggest that ATR is actively re-scaling the x-axis, it wouldn't necessarily surprise me if that was going on...
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