boost needle bouncing/boost flutter!!??

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  • popdemonic
    S2Forum Extremist
    • Dec 2007
    • 1304
    • Country: Thailand

    #1

    boost needle bouncing/boost flutter!!??

    Hey matws,It seems it 's time for me to kill this issue.As I'm running on the GT2871RS
    from 034's.Now I'm experiencing the boost flutter as I see the boost needle bouncing
    all the times when it reached the max. boost(when WOT).the boost needle will bounce between 1.7-1.8 go and back all the times.sometimes they do on 1.4-1.5bar.the neddle just bouncing all the times.The issue is intermittently.most of case will happen when it over 1.5bar.I also heard the sound of the boost creep or n75 was fluttering the pressure or else.

    The needle will stay consistently whenever when lowered on the boost.I have replaced the 710N BPV 4 years ago.Can this 710N tend to be failured again?
    sometimes it has a little rattle snake sound when let off the gas too.it's not that loud as the intake boot is the 4plies silicone from 034's. Please
    let me know if you BTDT this kinda issue.
    one of a few I5 from Asia.
  • Bram
    S2Forum Fiend
    • Aug 2006
    • 2582
    • Country: Netherlands

    #2
    Surge of your turbo?

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    • popdemonic
      S2Forum Extremist
      • Dec 2007
      • 1304
      • Country: Thailand

      #3
      it seems one of the clamp on the line from N75 to WG has a bit come loose.Cause flutter on boost?
      one of a few I5 from Asia.

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