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Thread: Running rich at idle using ID1000's

  1. 11-10-2013 #1
    GPGTP
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    Running rich at idle using ID1000's

    02 Z06, has a built bottom end but unsure of the cam, if it has one it's small (idles at 35 kpa). F1 procharger, full exhaust, E85, ID 1000's.

    I used the injector data off of the injector dynamics website and double checked it, I don't see anything wrong. However, this thing just does not want to lean out at idle when I make changes to the MAF and/ or VE table, Injector msec is at about 2.1 at idle when it should be at about 0.5-1.0 ish. If I put it in closed loop the computer starts pulling fuel out put it's not happy about it. Something is preventing me from pulling fuel out, any ideas would be greatly appreciated.

    Please excuse my hacked VE table, I was proving a point that my VE changes weren't doing squat in the 2 bar enhancement.

    z06 dyno 3.hpl02 z06 procharger andy 2 bar retry rich 2.hpt
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  2. 11-10-2013 #2
    danieloneil01
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    Reason why you're trying to command a 9.8:1 AFR?
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  3. 11-10-2013 #3
    mowton
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    Quote Originally Posted by danieloneil01 View Post
    Reason why you're trying to command a 9.8:1 AFR?
    E85 fuel stoich AFR is 9.8
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  4. 11-10-2013 #4
    GPGTP
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    could it be the "min fuel Miligrams" under the "transient" table in fuel? I read that but this is the first I heard of it, I have no idea what I should set it at though. Thoughts?
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  5. 11-10-2013 #5
    GPGTP
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    http://www.hptuners.com/forum/showth...-in-78mm-Turbo

    found this. Would be nice if they would make a note of this, would have saved me a few hours of time yesterday....
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  6. 11-10-2013 #6
    HartRod
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    Is this only required on forced induction?
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  7. 11-10-2013 #7
    GPGTP
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    Quote Originally Posted by HartRod View Post
    Is this only required on forced induction?
    no it's because of the larger injectors.
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  8. 11-10-2013 #8
    HartRod
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    I'm running the Siemens SD80s on my setup, do you think this is necessary for them? Thanks,

    Rob
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  9. 11-10-2013 #9
    GPGTP
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    Quote Originally Posted by HartRod View Post
    I'm running the Siemens SD80s on my setup, do you think this is necessary for them? Thanks,

    Rob
    I'm assuming you will.
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  10. 11-10-2013 #10
    HartRod
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    Quote Originally Posted by GPGTP View Post
    I'm assuming you will.
    Crap! Just figured out that E38's don't have this an option....
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  11. 11-11-2013 #11
    edcmat-l1
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    E38s don't have this same problem.

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  12. 11-11-2013 #12
    SultanHassanMasTuning
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    Min Fuel Miligrams?
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  13. 11-11-2013 #13
    Brice
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    Because it's not an real E85 fuel ... maybe E70 ...
    In winter we have a E70 here in Europa.

    You have you buy an E85 composition tester.
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  14. 11-11-2013 #14
    GPGTP
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    Quote Originally Posted by Brice View Post
    Because it's not an real E85 fuel ... maybe E70 ...
    In winter we have a E70 here in Europa.

    You have you buy an E85 composition tester.
    Not sure who this was in response to. My issue was as stated.
    2018 Camaro SS, Maggie 2650, 103 TB, Big Gulp, E85
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  15. 11-11-2013 #15
    68Camaro
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    min fuel miligrams. I have had to lower this table to get big injectors to lean down at idle. usually around .020
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