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Changing injectors

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  • Changing injectors

    HI Guys,

    Has anyone changed their injectors ?
    Do I need any special tools, any tips?

    Thanks
    Polo 9n3 GTI

  • #2
    No special tools but watch the fuel in the rail it'll be under pressure. Unless the car has been stood a long while. No need for injectors unless the turbo has been changed already and appropriate software loaded or it'll just over fuel big time and the ECU won't cope well.

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

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    • #3
      Originally posted by h100vw View Post
      No special tools but watch the fuel in the rail it'll be under pressure. Unless the car has been stood a long while. No need for injectors unless the turbo has been changed already and appropriate software loaded or it'll just over fuel big time and the ECU won't cope well.

      Gavin
      Thanks Gavin. I have got all parts for my upgrade, except the turbo itself. For various reasons (mainly cost), I would prefer to install things one at a time...I know that the turbo will be the big expense, so saving that for last.
      If I installed the new injectors etc... and got a stage II remap from you, would it be OK?
      Can your software take all my mods into account ?
      Then when I get the new turbo, we can do the stage III remap ?
      Thanks
      Polo 9n3 GTI

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      • #4
        Sounds like a plan bud Dooo it!

        Comment


        • #5
          Originally posted by VWindahouse View Post
          Sounds like a plan bud Dooo it!
          I want to , as long as Gavins code can manage it.
          Polo 9n3 GTI

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          • #6
            I've got a 4 bar FPR and pump sitting here ready to go in when I choose which turbo I want. There's really no point fitting them now. (I mention that as it's similar to fitting bigger injectors)

            Each to their own, but I wouldn't bother changing the injectors right now if you're planning on upgrading the turbo soon.
            It will take hardly any time to switch them out when you do the turbo and you can get it tuned all at the same time.
            I wouldn't think it's worth it, effort v gain v cost.. plus it's going to run like a dog.
            Last edited by s4mmie; 11-10-2012, 04:25 PM.
            Polo GTI MY2008
            Build Thread
            136.09kW and 305.28Nm torques, Dynapack Hub Dyno

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            • #7
              You don't need the injectors or MAF for a Phase 2. There's nothing to be gained in performance terms from having big injectors or MAF before the turbo is changed.

              Custom-Code would not write a file for those parts without the turbo. It would be time consuming to do it, for no benefit.

              As Sam says, they can be fitted in minutes.

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

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              • #8
                Your car will probably run worse.

                The tune you have is designed to run the standard injectors which will have a certain spray pattern etc.

                What turbo are you going to run, or is it a secret lol ?
                MODS- TOO MANY

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                • #9
                  Originally posted by vwthunder View Post
                  Your car will probably run worse.

                  The tune you have is designed to run the standard injectors which will have a certain spray pattern etc.

                  What turbo are you going to run, or is it a secret lol ?
                  Most probably a frankenturbo..just cause they seem best value.
                  Unless anyone knows of someone selling a good 2nd hand turbo...keen to look around and experiment
                  Polo 9n3 GTI

                  Comment


                  • #10
                    Originally posted by vwthunder View Post
                    What turbo are you going to run, or is it a secret lol ?
                    Originally posted by clicht View Post
                    Most probably a frankenturbo..just cause they seem best value.
                    I did say to to Clint that he should talk to you, Troy, about upgrading turbos while I grabbed his battery
                    Resident grumpy old fart
                    VW - Metallic Paint, Radial Tyres, Laminated Windscreen, Electric Windows, VW Alloy Wheels, Variable Geometry Exhaust Driven Supercharger, Direct Unit Fuel Injection, Adiabatic Ignition, MacPherson Struts front, Torsion Beam rear, Coil Springs, Hydraulic Dampers, Front Anti-Roll Bar, Disc Brakes, Bosch ECU, ABS

                    Comment


                    • #11
                      Originally posted by vwthunder View Post
                      Your car will probably run worse.

                      The tune you have is designed to run the standard injectors which will have a certain spray pattern etc.

                      What turbo are you going to run, or is it a secret lol ?
                      Agreed, i would hold off till you can get it all done at once and do it right!

                      Your will absolutely hate how it runs, and Its not worth causing any damage over.

                      Just my opinion =)
                      GIAC | FORGE | D2 | TURBOSMART | K&N | XFORCE |

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