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Thread: P59 And Boost

  1. #1
    Tuner in Training
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    Question P59 And Boost

    I've seen a bunch of threads about the the P59 with 2/3 bar OS and the reduced resolution in the VE table. Question is : If you had a good running vehicle with a P59 and wanted boost, would it stop you from doing the boost addition or is it not really an issue? My vehicle is not a daily driver, but I like it to drive good. It currently idles around 55kpa- 6.0 engine with BTR TN cam.

  2. #2
    Advanced Tuner
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    Oct 2004
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    Not an issue. Untold thousands of vehicles are forced induction with a p59 computer.

  3. #3
    Potential Tuner
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    +1

    I am running 2-bar P59, LQ4 (stock cam), 7875, 4L80.

    I have absolutely zero complaints about daily driving it with the reduced resolution. If your VE table is reasonably smooth, it is no problem at all.
    1961 Apache: Shortboxed, pancake, step-notch, air-ride, boosted-LS
    1977 Silverado: The Daily - shortboxed & dropped, potato-potato
    V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7lbs in a 1lb bag
    Lotus Super 7 Replica: Scratch-built street-legal rollerskate

  4. #4
    Tuner in Training
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    Thank you both, I will proceed with ordering part$ !

  5. #5
    Senior Tuner
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    Dec 2019
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    Its not that big of a deal. The main thing is if you want it close to perfect as possible filter out all the data between the axis scales.
    So if you have a MAP axis if 110 130 150.
    Then make sure to filter out all the data except a few numbers above/below the axis numbers. Its time consuming but atleast it will be the best you can make it.