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Stage 1 S3 map, fluttering from 3500-4000rpm

Discussion in 'Revo Technik' started by TimJK, Apr 28, 2012.

  1. TimJK
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    TimJK Member

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    Hello, Had a stage 1 map put on the car this morning.

    I have a forge recirc valve (Changed to yellow spring), ITG intake.

    Since map I now have a flutter in power when under hard acceleration between 3,500-4,000rpm. It is fine before, and afterwards throughout the rev range.

    Its running currently on tesco 99.

    I have removed the forge recirc valve thinking its dumping too early but its not cured it...


    anybody else come across this problem before?

    Tim
    #1
  2. Blackie
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    Blackie Active Member

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    Check my earlier thread

    Silky explained it fully so all is well
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  3. TimJK
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    TimJK Member

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    I may be blind but cannot find your thread?
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  4. Blackie
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    Blackie Active Member

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    Just click on my profile and then started threads
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  5. TimJK
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    TimJK Member

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    Yep I must be blind then, Cannot find a thread you've started with the same issue.
    #5
  6. Paullie
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    Paullie Banana Menace!

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    Hey Tim, all it is is the diverter valve modulating the boost, it's perfectly normal. Nothing at all to worry about. I have the Forge DV and yellow spring fitted also. For me it just became more noticeable after I had my Forge TwinTake fitted. Have a read of Silky's original thread (couldn't find Blackie's one from the other day when having a quick search either, ..I should have gone to Specsavers, I guess lol) :wub: xx

    http://www.audi-sport.net/vb/new-a3-s3-sportback-8p-chassis/138325-s3-boost-modulation-flutter.html
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  7. TimJK
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    TimJK Member

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    But it's funny how the original valve and the forge valve both do this? It doesn't seem right that it should do it... I'm going to ring up the place that mapped it when they are open again just to check its definitely ok.
    #7
  8. TimJK
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    TimJK Member

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    I fitted a milltek turbo back exhaust and it stopped the fluttering..... Until I had a play with an sps it came back. But reverted to settings I first had on and still there. Fail!

    Also fitted a hpfp so going to go back for a stage 2 or 2+ map soon and ask about it.
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  9. TimJK
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    TimJK Member

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    Flutter still present and its now been stage 2+ map, on studying the RR graph I've noticed it doesn't have as greater climb in the power curve between where the fluttering starts and stops. may need to return to mapper?
    #9
  10. RevoKev
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    RevoKev in the fast lane

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    As above the fluttering sound is boost modulation as Paullie explained above!
    #10
  11. TimJK
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    TimJK Member

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    Strange how as it happens though there is a dip in the power curve, Any way to get around it happening?
    #11
  12. RevoKev
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    RevoKev in the fast lane

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    Last edited: Jul 23, 2012
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  13. TimJK
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    TimJK Member

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    I will scan in and message you the graph if you like. It is the latest software version as you may recall being contacted by a dealer about problems flashing my car and had to return the next week once the new software was released.
    #13
  14. RevoKev
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    RevoKev in the fast lane

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    Yes please!
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  15. TimJK
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    TimJK Member

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    I have sent it to you now
    #15
  16. TimJK
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    TimJK Member

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    Have you checked your messages yet?
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  17. RevoKev
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    RevoKev in the fast lane

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    Yes and I spoke to Dan over at Clive Atthowe's as well, there's no real dip in the power curve but you can see a dip in the torque curve which is accentuated on the graph due to the scaling. That car's seeing some very healthy figures for stage1!
    To make sure it's all okay I'd get it logged on the road, you'd be able to see boost dipping if it's massively pulling load out for some reason.
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  18. TimJK
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    TimJK Member

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    Ok I will log again on the road, this isn't stage 1 this is stage 2+ mapped
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  19. RevoKev
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    RevoKev in the fast lane

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    That makes more sense although the thread title is confusing!
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  20. Audi Dynamik
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    Audi Dynamik Well-Known Member

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    I used to Run my Car on Tesco 99 and i started having the Hesitation problems,
    I have recently been on Holiday with a Tank full of V Power been down South to the Isle of Wight for a week and then to Devon for a week clocked up 960 Mile in 2 week with using nothing but Shell V Power and the hesitation has vanished !! [​IMG]
    #20
  21. TimJK
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    TimJK Member

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    Sorry yeah i thought maybe it's something that was only going to happen stage 1 but then it remained when I went to stage 2+ but added it to this thread.
    #21
  22. TimJK
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    TimJK Member

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    Mine has always been on vpower so hesitation is with that.
    #22
  23. RevoKev
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    RevoKev in the fast lane

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    Tim, as I said I spoke to Dan over at Clive Atthowe's, there's no real dip in the power curve but you can see a dip in the torque curve which is accentuated on the graph due to the scaling. To make sure it's all okay I'd get it logged on the road, you'd be able to see boost dipping if it's massively pulling load out for some reason. The guys at Clive Atthowes would be able to do this!
    #23

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