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  1. #1
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    3 out of 3 members liked this post. Yes Reputation No

    Incremental Update - Dyno

    Took the car to the dyno today. My previous dyno session on the old tune is here: link. Only changes from then are ditched procede, added Cobb AP, running full e85 and meth (meth isn't really needed, except in the cold months when the HPFP needs help) and tediously refined my tune over the last year or so. I'm really happy with the results.

    Datalog: http://www.datazap.me/u/ghost/3-dyno...7-8-9-12-15-19


    The baseline below is from a friend's FBO N54 on map 0 (JB4).

    Attached Images Attached Images  
    Last edited by The Ghost; 03-30-2014 at 04:28 AM.
    Change is constant

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    Here are few more charts. First is my save dyno, but on the last run (green) I reduced timing by 2 degrees to see what affect it would have.

    This same day, two of my friends also dyno'd both with FBO N54/meth/e30-e60/6AT/JB4. I've overlaid our charts here.
    Attached Images Attached Images    
    Change is constant

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    1. That is about as clean a log as i've seen. Beautiful. Targeting 14 degrees of advance or so it looks like?
    2. Numbers back up the logs. Strong
    3. Ever seen Sevendust live? They're fantastic.
    E88 N54 w stuff
    F30 335 X-Drive EBII....PPK otherwise Stock
    Click here to enlarge

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    I'm confused. Which run did you lower the timing by 2 degrees? I thought the green line was another car?

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    Click here to enlarge Originally Posted by 135pats Click here to enlarge
    1. That is about as clean a log as i've seen. Beautiful. Targeting 14 degrees of advance or so it looks like?
    2. Numbers back up the logs. Strong
    3. Ever seen Sevendust live? They're fantastic.
    Thanks. It targets about 13.5 up top, but i shift at 6300, so it doesnt go beyond 12.5-13,during a run.

    Yeah, I have seen them live. TONS of energy!
    Change is constant

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    Click here to enlarge Originally Posted by Jewber Click here to enlarge
    I'm confused. Which run did you lower the timing by 2 degrees? I thought the green line was another car?
    You are correct. The comparisons above are between my car (labeled "Ghost") and two other N54s with the same mods.

    Below is the graph of just my three runs, including the run where I removed timing (labeled "detuned").
    Attached Images Attached Images  
    Change is constant

  7. #7
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    1 out of 1 members liked this post. Yes Reputation No
    this is an example of a properly tuned car... not just canned tune with a few changes... this is what every car should have
    09 6AT 335i Coupe M-Sport - SOLD
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    Looking for a n54 project e90/e82

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    Very nice! You still having those timing corrections you were trying to track down? Also do you have the "busa" code or whatever Cobb calls it to run more boost in the higher rpms?

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    Are you limiting your boost down low to keep the HPFP happy?
    Click here to enlarge
    MOTIV750, MOTIV P-1000 PI, MOTIV/FUEL-IT! low pressure fuel system, AEM EMS/COBB AP, Aquamist HFS-3, ETS FMIC, SPEC stage 3+ clutch/SS flywheel, BC Racing coilovers and VMR wheels wrapped in Hankook RS3s.

  10. #10
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    Click here to enlarge Originally Posted by ChuckD05 Click here to enlarge
    this is an example of a properly tuned car... not just canned tune with a few changes... this is what every car should have
    Thanks man. I read almost every post and learn from everyone here (rader, dzenno, josh@cobb, bimmer305, etc.)

    Click here to enlarge Originally Posted by bmw335iguy Click here to enlarge
    Very nice! You still having those timing corrections you were trying to track down? Also do you have the "busa" code or whatever Cobb calls it to run more boost in the higher rpms?
    No, bimmer305 showed me how to use the "Throttle Angle Aggression in Overload" table to prevent throttle closures. This allows me to briefly peak at 18-19psi without issue.
    Change is constant

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    nice work!

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    Click here to enlarge Originally Posted by rader1 Click here to enlarge
    Are you limiting your boost down low to keep the HPFP happy?
    Honestly, I never really floor it at 2krpms enough to hit these load cells. The boost is definitely lower on the lower rpms and I thought about adjustingit to make the tq curve even wider, but decided to leave well enough alone because I never race there.
    Change is constant

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    Click here to enlarge Originally Posted by bmw335iguy Click here to enlarge
    Very nice! You still having those timing corrections you were trying to track down?
    .
    Yes,I get those corrections from time to time in cyclinder #5 regardless of tune (could be 8 degrees advance on e85 and meth), but have given up on trying to fix it. It doesn't appear to be something in my control (perhaps mechanical noise).
    Change is constant

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    nm
    Change is constant

  15. #15
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    Click here to enlarge Originally Posted by The Ghost Click here to enlarge
    Honestly, I never really floor it at 2krpms enough to hit these load cells. The boost is definitely lower on the lower rpms and I thought about adjustingit to make the tq curve even wider, but decided to leave well enough alone because I never race there.
    Just my 2C but you're missing out on some awesome torque with that boost curve. You could easily widen the curve by 1.2Krpms if you wanted to.
    Click here to enlarge
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    Link to movie for mobile devices: https://vimeo.com/m/90445580
    ("https://vimeo.com/m/90445580")

    Click here to enlarge Originally Posted by rader1 Click here to enlarge
    Just my 2C but you're missing out on some awesome torque with that boost curve. You could easily widen the curve by 1.2Krpms if you wanted to.
    Yeah, maybe I'll go back some time.
    Change is constant

  17. #17
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    Click here to enlarge Originally Posted by The Ghost Click here to enlarge
    Honestly, I never really floor it at 2krpms enough to hit these load cells. The boost is definitely lower on the lower rpms and I thought about adjustingit to make the tq curve even wider, but decided to leave well enough alone because I never race there.
    I'm of the same mindset. I like to keep the load/boost moderate down low and then have it hit hard where it's needed. Easier on HPFP, easier on engine, easier on fuel economy, easier to drive nicely, less wheelspin etc. The downsides are I guess I miss out on some torque by limiting myself to like 11psi down low, 13-14 from 2500 to like 2800 and whatever after that. The smoothness is worth it for a manual trans especially in traffic IMO, but to each their own.

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    Click here to enlarge Originally Posted by The Ghost Click here to enlarge
    Thanks man. I read almost every post and learn from everyone here (rader, dzenno, josh@cobb, bimmer305, etc.)



    No, bimmer305 showed me how to use the "Throttle Angle Aggression in Overload" table to prevent throttle closures. This allows me to briefly peak at 18-19psi without issue.
    can you maybe comment and share on how you run the throttle angle aggression settings? Am having throttle closures at about 4k rpm peaking at 19 psi. Would be really great here.

    by the way awesome results.

    thks

  19. #19
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    Click here to enlarge Originally Posted by V8Bait Click here to enlarge
    I'm of the same mindset. I like to keep the load/boost moderate down low and then have it hit hard where it's needed. Easier on HPFP, easier on engine, easier on fuel economy, easier to drive nicely, less wheelspin etc. The downsides are I guess I miss out on some torque by limiting myself to like 11psi down low, 13-14 from 2500 to like 2800 and whatever after that. The smoothness is worth it for a manual trans especially in traffic IMO, but to each their own.
    Different strokes for different folks I guess. I just like the instant "on" the torque down low provides.
    Click here to enlarge
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    what upgrades do you have for the lpfp? great logs and dyno btw..have me curious on the cobb

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    Can you try to give an estimate on how much of the power discrepancy between your car and your buddies cars is derived from your tuning vs increase in E fuel? 50-50? 20 tuning 80 fuel? 80 tuning 20 fuel?

    Thanks in advance.
    -Modified safety triangle in trunk
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    Click here to enlarge Originally Posted by CaliforniaBred Click here to enlarge
    what upgrades do you have for the lpfp? great logs and dyno btw..have me curious on the cobb
    Thanks. The other 135i and I both have in-tank 455 replacement pumps.
    Click here to enlarge Originally Posted by R.G. Click here to enlarge
    Can you try to give an estimate on how much of the power discrepancy betweenClick here to enlarge your car and your buddies cars is derived from your tuning vs increase in E fuel? 50-50? 20 tuning 80 fuel? 80 tuning 20 fuel?

    Thanks in advance.
    I believe it's all tuning, and perhaps motor variance. I used to run the same tune on just E60. The 135i (430whp) is on E60 and meth. My meth mix is 50/50 water methanol.

    I was at 425-430whp as well, with the only changes being adding tuning (and meth just because).
    Change is constant

  23. #23
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    looking good!
    2008 e92 335i: JB4 G5 ISO/BMS back end flash, fbo, e85, inlets, Rb turbos, level 10 valve body + converter, water/methanol.....and a lot more....

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    Click here to enlarge Originally Posted by The Ghost Click here to enlarge
    Link to movie for mobile devices: https://vimeo.com/m/90445580
    ("https://vimeo.com/m/90445580")


    Yeah, maybe I'll go back some time.
    Does vimeo not allow mobile devices to view embedded vids?
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Does vimeo not allow mobile devices to view embedded vids?
    It appears so.
    Change is constant

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