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Thread: Trying 20/20 tune

  1. #1
    Senior Tuner
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    Feb 2009
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    Trying 20/20 tune

    I am working on a 2005 Duramax with an LLY engine. I am trying to follow the Mcrat 20/20 tune. The instructioins I found for this were written for a different tuner program. While figuring out what tables I needed to modify for the first 2 steps was not hard, the 3rd step I dont understand. Refered to as fake boost stick mod, I cannot find a place in hptuners to do the boost sensor scaling. Am I blind? If it is not there, is there another table you can apply the same idea to and achieve the same result?

    Thanks

  2. #2
    Senior Tuner
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    OK, so I am certain the boost sensor adjust does not exist in hptuners. Would adjusting the desired boost tables by 20% do the same thing? Anyone?
    Last edited by mecanicman; 03-24-2009 at 06:44 PM.

  3. #3
    Tuner in Training
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    I have done the LBZ by adjusting the Baro Tables in the fuel section, but it wasnt by 20% across the board. I am as little as 0 in some places and as high as 23% in peaks. I can look at the LLY when I get a chance next week and see if I can come up with something comparable. I am tied up until then.

  4. #4
    Advanced Tuner Programmer's Avatar
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    Jul 2007
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    You don't need to rescale the A/D values for the boost sensor. Just make the changes in the boost table.
    2009 Cadillac CTS-V 196.7 MPH on the Salt
    Superflow SF600 FlowBench -- Superflow Autodyn 30 Chassis Dyno -- Superflow SF901 Engine Dyno--RaceLogic Emulator -- MikiPro Logic Emulator -- ASNU Injector Flow Bench --

  5. #5
    Potential Tuner
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    Jul 2009
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    Which table exactly do you mean by the boost table? "Desired boost max"? and how much to you recommend changing it by?
    I'm trying to tune an 03 LB7, btw.