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Thread: 2017 Focus RS XDI Pump

  1. #1
    Tuner
    Join Date
    Sep 2010
    Location
    Houston
    Posts
    131

    2017 Focus RS XDI Pump

    Anyone has data for this pump is the HPFP-35 , I contact XDI their response was a bit odd as they said data is only available for their dealers/tuners and if I wanted it I need to become one

    I'm whiling to pay for correct data for this Pump of course.

    thanks

  2. #2
    Advanced Tuner
    Join Date
    Jun 2019
    Location
    Wisconsin
    Posts
    295
    I don't have the exact parameters in front of me (on my phone), but you should only have to increase pull-in current and the stroke fuel quantity in the fuel pump tab (where you can set cam lobe count and other HPFP parameters).

    I can post more details when I'm at my computer, if someone else doesn't chime in later.

  3. #3
    Advanced Tuner
    Join Date
    Jun 2019
    Location
    Wisconsin
    Posts
    295
    Ok...
    Fuel sys->Fuel pump tab, Capacity (ECM #7316), that should be set to 1.52cm?
    Fuel sys->Fuel pump tab, Pull in current (ECM #23260), multiply everything here by 1.25

    If it doesn't start and run, you may have to increase pull in current slightly more.

    Then watch LTFT and make sure they don't deviate from where things were with the stock pump, if the do, you may have to fine tune the capacity parameter.
    Or if it's not much (say 2 or 3%), you could just let LTFT do it's thing.