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Fuel Injectors Flow Rate

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  • #1

    Fuel Injectors Flow Rate

    Does anyone know the flow rate (in cc) of the GTI injectors?

    Would upgrading to the K04 require a new fuel regulator and larger injectors? Or will that only be requiered if your going to a GT28 turbo?
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  • #2
    Fuel pressure regulator yes, but standard injectors are ok for the K04.

    The GT28 i believe needs bigger injectors.
    Originally posted by Whubbsie
    There is nothing better than a polo badge, thats why you will notice Veyron drivers with polo gti badges.... they know where the true sizzles at!

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    • #3
      I'd change the injectors for K04 upgrade. Do both for GT28.

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      • #4
        Originally posted by Flaps View Post
        I'd change the injectors for K04 upgrade. Do both for GT28.
        why? the KO4 only requires a new fuel regulator

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        • #5
          The TT and S3 with the 225 hp motors have bigger injectors as std. It would seem sensible tome to go for bigger ones if upgrading the turbo to a K04, unless you are not going to be using a 3 inch MAF.

          Gavin
          optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

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          • #6
            What you need to know is the desired fuel rate - three factors:

            Injector size, Fuel pressure regulator, and fuel pump.

            Its not much use putting a 5 bar FPR on it as you anly have a 3 bar fuel pump etc etc. You can go to a 4 bar fuel pump (TT / S3) but to be honest - the K04 is happilly fed by stock injectors & 4 bar FPR (with stock pump)

            on our TT kit, we use a 5 bar FPR, 4 bar fuel pump in tank (now as the lift pump), 4 bar fuel pump in line & some pretty big Bosch Motorsport injectors
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