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Thread: How to get 3 BAR MAP?

  1. #1
    Potential Tuner
    Join Date
    Jul 2012
    Posts
    5

    How to get 3 BAR MAP?

    I already have a 2 Bar credit for my E40 ECM on my 05 GTO. How do I get a 3 Bar?

  2. #2
    Advanced Tuner HartRod's Avatar
    Join Date
    Dec 2006
    Location
    Pensacola, FL
    Posts
    478
    Switch to the custom OS?
    69 Suburban Bagged & Blown: http://67-72chevytrucks.com/vboard/s...d.php?t=200387
    68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692

  3. #3
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
    Join Date
    Jun 2004
    Location
    Hailing from Parts Unknown
    Posts
    28,248
    255 kpa is the hardcoded limit in the pcm ie 2.5 bar which is the max you can do, even with a custom operating system applied on gen 4 pcm's such as this.

  4. #4
    You can use a 3 bar LS3 map sensor but the scale will be off so you will have to adjust the tune. I am currently running one on my GTO.

  5. #5
    Potential Tuner
    Join Date
    Jul 2012
    Posts
    5
    I want my boost gauge to go up to 21 psi.