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Thread: Help tunning a/f

  1. 09-12-2009 #1
    DevilsOwn
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    Help tunning a/f

    I have a tbss that someone else did a speed density tune who knows what they are doing and i have changed some minor things like air filter exhaust. Well my a/f has changed. Can i trouble someone to look and see what they would change the the values to. I was thinking i need to get my af up some or so figured i would ask before i mess anything up.

    Existing
    Labels 5250 5500 5750 6000 6250
    EQ Ratio 1.22949 1.25586 1.22949 1.33008 1.04492

    Proposed
    Labels 5250 5500 5750 6000 6250
    EQ Ratio 1.21586 1.20316 1.21074 1.24438 1.11621
    Last edited by DevilsOwn; 09-12-2009 at 10:26 PM.
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  2. 09-12-2009 #2
    69lt1bird
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    post your tune file
    Free HP Tuners Beginners Tuning Guide

    LS1 Tuning Guide
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  3. 09-12-2009 #3
    firehawk26
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    It looks like its a blower car with that kind fuel in the graf .
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  4. 09-12-2009 #4
    DevilsOwn
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    No, its N/A atm i do plan on going forced inductin very soon. Trying to learn more about tunning before i go there so i don't blow her up. But i do have 1.5 dipp in my af and i from what i understand i should be a tad closer to 12:1 af
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  5. 09-12-2009 #5
    firehawk26
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    First set your dynamic Airflow table to high RPM disable to=1 high RPM Re-enable to = 0 so you can make sure that you are running Maf only .
    set your power enrichment table to 14.6/12.5 = 1.168 table so that's what you are commanding then tune your maf so you can get to the target ... and set your LTFT to disable so its so easy to tune it with just the STFT .for WOT you have to have wideband to do .
    Last edited by firehawk26; 09-12-2009 at 10:18 PM.
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  6. 09-12-2009 #6
    DevilsOwn
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    Sorry i didn't put in the first post. This has a speed densty tune on it. There is no maff on the truck. I believe ltft are already turned off. When i drive around i never see a value from it. Also WOT never shows more than 83% in my logs.
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  7. 09-13-2009 #7
    Street Legal
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    Quote Originally Posted by DevilsOwn View Post
    Sorry i didn't put in the first post. This has a speed densty tune on it. There is no maff on the truck. I believe ltft are already turned off. When i drive around i never see a value from it. Also WOT never shows more than 83% in my logs.
    because you haven't set the right PID for the ETC thats why you dont see more than 83%.
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  8. 09-13-2009 #8
    Mez
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    Quote Originally Posted by DevilsOwn View Post
    Sorry i didn't put in the first post. This has a speed densty tune on it. There is no maff on the truck. I believe ltft are already turned off. When i drive around i never see a value from it. Also WOT never shows more than 83% in my logs.
    83% is WOT. Do a search on the forum and you will find the explanations.
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  9. 09-13-2009 #9
    DevilsOwn
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    Yea, i have bumped into that after posting about it. I just want to get my o2 to not have a curve in it and be just a tad leaner.
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