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Thread: "Exhaust Brake"?

  1. #1

    Red face "Exhaust Brake"?

    Is there a way to set the turbo vains to 100% to create a "turbo brake" to slow the truck down with a load when off the throttle completely? Kind of like a exhaust brake in a way.


    Ive got a few crazy ideas so if that doesnt make sence please let me know.
    Last edited by joecar; February 28th, 2011 at 05:39 PM. Reason: fixed spelling to help user searches
    2004.5 LLY Duramax, Compounds, EFILive, EvolvedMS.com 50" Trac Bars, DDP Injectors, PPE Pump, 4" turbo back exhaust, 6" Chrome Stack,
    ATS Trans w/ Triple Loc.




    Evolved M.S, LLC & SS Diesel Tuning

  2. #2
    Lifetime Member killerbee's Avatar
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    Yes. It has been incorporated into my custom tuning for a couple of years.

    Just load the vane position and boost you want to create during off-throttle operation. Be careful about using 100% at the higher rpms.

    In my application, you have no idea it is there until those grade braking conditions are met, high rpm, no fueling. transparent.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  3. #3

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    At Higher RPM's whats the highest % you would suggest? just so I dont go dangerously high.
    2004.5 LLY Duramax, Compounds, EFILive, EvolvedMS.com 50" Trac Bars, DDP Injectors, PPE Pump, 4" turbo back exhaust, 6" Chrome Stack,
    ATS Trans w/ Triple Loc.




    Evolved M.S, LLC & SS Diesel Tuning

  4. #4
    Lifetime Member killerbee's Avatar
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    Take it with a grain of salt. I use 95% at 4000 rpm. It is mostly a gut feeling, that 100% vane is troublesome. I do use 100%, but no higher that 3200 rpm, and never for power production
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  5. #5

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    Okay, I will play around with it and see what I get. Thank you again Michael.

    -Justin
    2004.5 LLY Duramax, Compounds, EFILive, EvolvedMS.com 50" Trac Bars, DDP Injectors, PPE Pump, 4" turbo back exhaust, 6" Chrome Stack,
    ATS Trans w/ Triple Loc.




    Evolved M.S, LLC & SS Diesel Tuning

  6. #6
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    Quote Originally Posted by killerbee View Post
    Yes. It has been incorporated into my custom tuning for a couple of years.

    Just load the vane position and boost you want to create during off-throttle operation. Be careful about using 100% at the higher rpms.

    In my application, you have no idea it is there until those grade braking conditions are met, high rpm, no fueling. transparent.
    What a COOL idea !!!
    So, I could command high vane position and boost at 0% load and RPM's over say 1600, yet retain a open vane position the get a LB7 style idle sound?

  7. #7
    Lifetime Member killerbee's Avatar
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    yes. But you won't get any significant braking with it under 2500 rpm.
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

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