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Thread: Converting HP Tuners VE table values to TunerPro

  1. #1
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    Converting HP Tuners VE table values to TunerPro

    Hi All,

    Does anyone know the conversion rate for a HP Tuners VE table into the TunerPro?

    Looking at the HP Tuners program, it can show the VE cell values in percentage or number.
    TunerPro cells units are in Grams * Kelvin/kpa which doesn't really make sense to me, as Kelvin I'm assuming is a temparature variable, and the KPA is one of the axis.
    Could someone please explain the calculation that occurs so that I can convert these tables to input from HPT into TunerPro?

    Thanks.
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  2. #2
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    What OS/car are we talking about? The sreenshot is too bad to see that.

  3. #3
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    OK, I can see it's 2088 OS.

    X/5120 = g*K/kPa
    (X/0.1767711646826163)/Y = VE %

    X - raw VE value,
    Y - cylinder volume in cc

  4. #4
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    Awesome.
    Thanks for that.
    Is the 5120 value specific to a particular engine (e.g.SBC350), i.e. would I need to adjust the 2 numerical values or are they constants?

  5. #5
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    Quote Originally Posted by dzidaV8 View Post
    OK, I can see it's 2088 OS.

    X/5120 = g*K/kPa
    (X/0.1767711646826163)/Y = VE %

    X - raw VE value,
    Y - cylinder volume in cc
    Also I take it cylinder volume is the total cylinder volume e.g. cylinder volume plus combustion chamber volume? *Cyl radius^2 x stroke length)+ 64cc chamber volume

  6. #6
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    5120 is value specific to OS, but all GM OBD2 VPW PCMs should have it the same way.
    Cylinder volume is the value in calibration {B0104 - Cylinder Volume} and it should match the engine cylinder displacement, NOT including combustion chamber.

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