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Thread: Turbonator Is there a fuel table for a/c?

  1. #1
    turbo addict
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    Turbonator Is there a fuel table for a/c?

    I'm using Turbonator LM, and I have a working a/c, when I turn it on, my a/f goes to 11-12. Shut it off, A/F goes 12-15.

    Is there a fuel table that richen up when a/c is on?

  2. #2
    Hybrid booster
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    Re: Turbonator Is there a fuel table for a/c?

    I don't remember seeing anything like that in the fueling tables or in the aux functions. How much does your idle drop when the A/C kicks in?
    I think you're going to be stuck tweaking the PumpingEfficiency table at low RPMs to get the A/F where you want it.
    There is a fuel battery offset table that increases injector pulsewidth based on batt voltage drop...could work, but only if you're seeing "lowish" voltage when you're fans kick on.
    ..Could be that you've got lower vacuum when the A/C kicks in...causing the fuel pressure to rise a little. Remember the FPR uses vacuum to lower FP and boost to increase it. Ok, I'm going to stop thinking about this, there's a lot that could be affecting it.

  3. #3
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Turbonator Is there a fuel table for a/c?

    There's no specific fuel enrichment for AC on/off. But, there is a transient enrichment, for TPS, MAP, and for AIS motor. When the AC is switched on, the AIS motor opens a little bit to compensate. You can try adjust the AIS transient enrichment to compensate.

    Sounds like maybe it's a little too much enrichment.
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    Rob Lloyd
    '89 Daytona C/S

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  4. #4
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    Re: Turbonator Is there a fuel table for a/c?

    Quote Originally Posted by ShelGame View Post
    There's no specific fuel enrichment for AC on/off. But, there is a transient enrichment, for TPS, MAP, and for AIS motor. When the AC is switched on, the AIS motor opens a little bit to compensate. You can try adjust the AIS transient enrichment to compensate.

    Sounds like maybe it's a little too much enrichment.
    Thanks Rob, but I'm not seeing the tables that you mentioned.


  5. #5
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Turbonator Is there a fuel table for a/c?

    They're under 'pump shot'...

    I have the details about how they work on my Wiki.
    https://db.tt/SV7ONZpQ
    Rob Lloyd
    '89 Daytona C/S

    2.5 T1 Auto
    13.24 @ 100.5mph
    NHRA #3728 AF/S

    boostbutton.com
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  6. #6
    boostaholic
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    Re: Turbonator Is there a fuel table for a/c?

    About to do this tuning myself here in a month.

    What is your AF goal if it's at 11-12 now with the AC on?

    Quote Originally Posted by tryingbe View Post
    I'm using Turbonator LM, and I have a working a/c, when I turn it on, my a/f goes to 11-12. Shut it off, A/F goes 12-15.

    Is there a fuel table that richen up when a/c is on?

  7. #7
    turbo addict
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    Re: Turbonator Is there a fuel table for a/c?

    Quote Originally Posted by going4speed View Post
    About to do this tuning myself here in a month.

    What is your AF goal if it's at 11-12 now with the AC on?
    14-15

    Using my scan tool last night, I discovered that when I turn on the a/c the o2 voltage goes to zero. I'm not troubeshooting it. I'm putting Microsqurit in.

  8. #8
    boostaholic
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    Re: Turbonator Is there a fuel table for a/c?

    Awesome. Been tempted myself after dealing with some gremlins on my two TD's.

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