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Thread: Actual System Pressure?

  1. Question Actual System Pressure?

    So reading through the manual that comes with the desktop software, there's an area where it says, "The correct fuel pressure of the system must be entered correctly in the system parameters for correct fuel rates." (Or something like that.) It then says, "The vacuum reference hose to the fuel regulator should be hooked up for proper fuel rates." So my question is, what should the Actual System Pressure value be? The 44 psi that the manual says the Terminator runs at, or the approximately 37 psi that the engine shows when the vacuum hose is hooked up?

    Perhaps an odd and stupid question, but if you think about it, it's a weird scenario. It requires that the Actual System Pressure be entered in correctly for proper calculation at that psi, but if the engine is running at a different value than that with the vacuum hose hooked up, wouldn't that throw off the calculation's for the times the fuel is showing a different number other than 44 psi? The ECU can't possibly understand how to compensate for a number that's not entered in right?
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    Quote Originally Posted by Cougarbird86 View Post
    So my question is, what should the Actual System Pressure value be? The 44 psi that the manual says the Terminator runs at, or the approximately 37 psi that the engine shows when the vacuum hose is hooked up?
    The 44 psi: http://forums.holley.com/showthread....ents-Read-This (Initial Checks & Adjustments - Read Step #2)

    It requires that the Actual System Pressure be entered in correctly for proper calculation at that psi, but if the engine is running at a different value than that with the vacuum hose hooked up, wouldn't that throw off the calculation's for the times the fuel is showing a different number other than 44 psi?
    No: https://www.vaporworx.com/documentat...re-regulators/ (Vacuum/Boost Referenced Fuel Pressure Regulators)
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