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Thread: Can someone tell me if this is correct? Speed density question

  1. #1
    Potential Tuner
    Join Date
    Oct 2019
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    4

    Can someone tell me if this is correct? Speed density question

    2.7LTT ecoboost

    I have monitors set for engine speed and map with parameter air load, same values as the mapped points in speed density. Then I have a filter for each mapped point.

    Do I just datalog, then copy/paste the values from each filtered mapped point into the speed density mapped point table? I'm finding lots of explanations but can't find an easy "log this, copy/paste this into this table" kind of walkthrough.

    Thanks for any help.

  2. #2
    Tuner in Training
    Join Date
    Oct 2021
    Location
    Aiken, SC
    Posts
    20
    Ever figure this out, kinda stuck in the same position right now. I can datalog and see the differences but uneasy about changing the tables.

  3. #3
    Potential Tuner
    Join Date
    Oct 2019
    Posts
    4
    I did. It's far more a science than I even initially thought. You will end up fighting the calculator. I will say, definitely filter your histogram by throttle pedal position >1%. It will give you much cleaner data. Some of the mapped points are blend only points so you can't really use filter by map point >25% for instance.

  4. #4
    Tuner in Training
    Join Date
    Nov 2021
    Posts
    25
    wouldn't it be better to disable all mapped points but one -> log that one, then do the same with another mapped point etc.?

  5. #5
    Advanced Tuner
    Join Date
    Jun 2020
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    782
    Lambda1 that?s the best way I?ve found, with the exception of idle. I had it still using the optimum stability mapped point at idle, but immediately go to whatever mapped point I was tuning as soon as I touched the throttle. This worked very well.