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Forge Diverter shims/springs effect on power delivery

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  • #1

    Forge Diverter shims/springs effect on power delivery

    My diverter was making that sound... I kicked it's nasty ass to the curb. Dropped on a Forge 008(?) replacement and it has ironed out power delivery marvellously. It does come with two alternate heavier springs and shims, but with no guidance as to how adjusting the pressure of the valve will effect engine performance.

    Has anyone got definite guidance on making these adjustments or even dyno graphs?

    Pete
    Tags: None
  • #2
    Forge Diverter shims/springs effect on power delivery

    Yellow spring is the 17-21lb boost spring, so that's the way to go if you are tuned.
    "If can't get behind your troops, feel free to stand in front of them..."

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    • #3
      From what I've read, from emailing forge, etc...
      3 springs with 3 different boost levels. the middle spring is for a chipped car
      they say the springs are never required, but a boost guage is required to really tell.

      I run mine with the softest spring backwards, so boost can not open the DV, only the VAC. I suggest looking into bypassing the N249 (i'm sure there is a guide / info on it somewhere).

      I really do recomend running it backwards if you want a quiet dump and to hold boost without fear of it being pushed open.

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      • #4
        Yellow spring on my 008. It's noticeably slower response than the R1, but I feel more confident in it holding more boost when the time comes.
        Polo GTI MY2008
        Build Thread
        136.09kW and 305.28Nm torques, Dynapack Hub Dyno

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