Wastegate chatter?

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  • Animal Mother
    S2Forum Extremist
    • Jul 2007
    • 1135
    • Country: England
    #1

    Wastegate chatter?

    When coming off throttle I notice a chatter noise. It sounds like a much quieter version of a group B rally car.
    Is this wastegate chatter or is it turbo stall?
    It has the OME recirc valve on it, could it be the noise from this or if this isn't opening could it be causing the turbo or wastegate to make this noise?
    UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

    Triumph Daytona 955i - mmmmmm :fire:

    80 dag dag :driving:
    Tags: None
    • Greenm3
      S2Forum Maniac
      • Jul 2004
      • 512
      • Country: United Kingdom
      #2
      I had the same symptoms, found it was a Vacum hose had come off the back off the manifold. Check the vacum lines there or on the WGFV.
      HTH
      Michael

        Comment

        • Animal Mother
          S2Forum Extremist
          • Jul 2007
          • 1135
          • Country: England
          #3
          Where is the WGFV?
          UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

          Triumph Daytona 955i - mmmmmm :fire:

          80 dag dag :driving:

            Comment

            • topsparky
              S2Forum Fiend
              • Oct 2005
              • 2014
              • Country: United Kingdom
              #4
              Originally posted by Animal Mother
              Where is the WGFV?
              on the maf hose near the driver's side headlight
              it's a bitch to get to on an s2 a bit easier on an s4 though
              1. SHORT SHIFT KIT
              2. PORSCHE CAYENNE CALIPERS
              3. H & R SPRINGS
              4. BILSTEIN SHOXS
              5. NEW BUSHES AND HP2 STRUTS
              6. UPRATED HIGH OUTPUT COIL PACK
              7. ,3" turbo back s/s/ exhaust
              8. fmic fitted

                Comment

                • GT500
                  S2Forum Fiend
                  • Jun 2006
                  • 2181
                  • Country: United Kingdom
                  #5
                  I bet your dump valve is knobbed! Diaphram splits and starts a low wuffle.
                  Rob..
                  94 RS2 Noggy,LHD,MTM map,18"cup 1s,245/35/18,Bilsteins,RS2 H&Rs,Cup splitter.
                  87 UR 20v ABY
                  97 S6 Avant
                  96 A6 C4 2.5 TDI quattro avant,Ming,Wietec/eibach,chipped
                  1967 Ford Mustang,Eleanor,460ci v8

                    Comment

                    • Rusty
                      Super Moderator
                      • Jun 2004
                      • 18953
                      • Country: United Kingdom
                      #6
                      Dump valve. Mine sounded like an S1 at Combe when I came off the track! Loved it but it's not too good for the car so best to change it. Bosch 710N (Audi S3) one is more modern than the OEM S2 and a lot of people run them (including me). Should be less than £25 from VAG Parts. Or you can buy a leaking Forge one and get a sarcastic letter when you send it back for £80... the choice is yours!
                      Cheers'en, AndyC
                      1994 ABY Coupe - Projekt Alpinweiss

                        Comment

                        • Billman
                          S2Forum Freak
                          • Nov 2004
                          • 4129
                          #7
                          I think it is turbo stall.
                          Go Holset or Go RS4

                            Comment

                            • Animal Mother
                              S2Forum Extremist
                              • Jul 2007
                              • 1135
                              • Country: England
                              #8
                              A bailey DV30 is on the way!
                              UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

                              Triumph Daytona 955i - mmmmmm :fire:

                              80 dag dag :driving:

                                Comment

                                • Rusty
                                  Super Moderator
                                  • Jun 2004
                                  • 18953
                                  • Country: United Kingdom
                                  #9
                                  Good work, not sure what they're like so please report your opinions on it when you get it. Hope it solves your problems.
                                  Cheers'en, AndyC
                                  1994 ABY Coupe - Projekt Alpinweiss

                                    Comment

                                    • dest
                                      S2Forum Freak
                                      • Feb 2006
                                      • 4287
                                      • Country: England
                                      #10
                                      Its not wastegate chatter, its air rushing back over the turbine blades which can then cause it to stall.
                                      Sounds great, but not good in the long run!

                                        Comment

                                        • Animal Mother
                                          S2Forum Extremist
                                          • Jul 2007
                                          • 1135
                                          • Country: England
                                          #11
                                          Originally posted by dest
                                          Its not wastegate chatter, its air rushing back over the turbine blades which can then cause it to stall.
                                          Sounds great, but not good in the long run!
                                          Thought so, don't facy chewing up my turbines. Mr Bailey will be here soon.
                                          UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

                                          Triumph Daytona 955i - mmmmmm :fire:

                                          80 dag dag :driving:

                                            Comment

                                            • Animal Mother
                                              S2Forum Extremist
                                              • Jul 2007
                                              • 1135
                                              • Country: England
                                              #12
                                              Mr Bailey arrived today.
                                              Attached Files
                                              UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

                                              Triumph Daytona 955i - mmmmmm :fire:

                                              80 dag dag :driving:

                                                Comment

                                                • Animal Mother
                                                  S2Forum Extremist
                                                  • Jul 2007
                                                  • 1135
                                                  • Country: England
                                                  #13
                                                  BUT, I went to fit it and found this little beauty
                                                  I was pleased as you can imagine, well, at least I know what the problem is now!
                                                  Attached Files
                                                  UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

                                                  Triumph Daytona 955i - mmmmmm :fire:

                                                  80 dag dag :driving:

                                                    Comment

                                                    • Animal Mother
                                                      S2Forum Extremist
                                                      • Jul 2007
                                                      • 1135
                                                      • Country: England
                                                      #14
                                                      Any ideas?. Will an "easy out" fix it or are they pressed in? ANyone got a spare one I could have pls?
                                                      UrS6 - Homefry, Bailey DV, PiperX filter, Samco hoses, H&R springs, 3" D/P back zorst, 270bhp and 260ftlb :rock:

                                                      Triumph Daytona 955i - mmmmmm :fire:

                                                      80 dag dag :driving:

                                                        Comment

                                                        • S-Express
                                                          S2Forum Extremist
                                                          • Nov 2006
                                                          • 1133
                                                          • Home: United Kingdom Current: Wales
                                                          #15
                                                          It will be a standard brass hose tail - probably bsp thread??
                                                          You could do with a reverse drill bit type thingie to get that out....
                                                          sigpic

                                                            Comment

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