Another "Stroker" Project

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  • Nuno Cristiano
    S2Forum Addict
    • Aug 2010
    • 421
    • Country: Portugal

    #436
    Very probably the segment of the turbo oil paste.

    How soon began to make that smoke?
    .: MINI Cooper D 08' :.
    .: Audi Coupe Quattro 20V 91' :.
    .: Audi Porsche RS2 95' :.

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    • quattro84
      S2Forum Maniac
      • Mar 2006
      • 947
      • Country: Netherlands

      #437
      Piston ring on the turbine rotor. If you rebuild it check were the slots are meeting, bottom or top

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      • Billman
        S2Forum Freak
        • Nov 2004
        • 4129

        #438
        Turbo is brand new. Done 120kms on it.maybe the slot is on the under side and it lets oil out while stationary?

        After I let it cool for 3 hours and started it nothing at all!
        Go Holset or Go RS4

        Comment

        • pasbogdan
          S2Forum Extremist
          • Sep 2009
          • 1160
          • Country: Romania

          #439
          If turbo is leaking oil should get into intake(a small leak would not get up into IM) or exhaust side and smoke should be visible only when exhaut is hot,not at first start.
          Am I missing something?

          Comment

          • Billman
            S2Forum Freak
            • Nov 2004
            • 4129

            #440
            Usually if the turbo oil seals are shot you will see smoke when the tolerances are greater thus when the turbo is cold. When it warms metal expands and it seals better. After covering about 500km it seems to have stopped doing this. I don't see oil at all....on cold start ups or during full throttle....

            Maybe the seal ring need a small settle in?
            Go Holset or Go RS4

            Comment

            • Billman
              S2Forum Freak
              • Nov 2004
              • 4129

              #441
              I am thinking about EV14 injectors and wanted to ask the following since te price difference is minor: should I go for 850ccm or 1000 ones? Speaks something against the 1000 option?
              Go Holset or Go RS4

              Comment

              • prj
                S2Forum Zealot
                • Mar 2010
                • 6308
                • Country: Estonia

                #442
                A system with stock fuel lines won't max out 750cc's, never mind 850cc's or 1000cc's.
                http://tuner.ee - http://www.facebook.com/tuner.ee

                Comment

                • Billman
                  S2Forum Freak
                  • Nov 2004
                  • 4129

                  #443
                  Apart from that?

                  If I go that route this engine with injectors will then go over to a project car with uprated lines (when the time comes).
                  Go Holset or Go RS4

                  Comment

                  • Billman
                    S2Forum Freak
                    • Nov 2004
                    • 4129

                    #444
                    Do you think they will be too large for decent Idle with 3.8 or 4 bar FPR?
                    Go Holset or Go RS4

                    Comment

                    • prj
                      S2Forum Zealot
                      • Mar 2010
                      • 6308
                      • Country: Estonia

                      #445
                      No, even the 1000cc's will idle fine. At least they did on Motronic
                      With 2000cc's you might start to get issues though.
                      http://tuner.ee - http://www.facebook.com/tuner.ee

                      Comment

                      • Billman
                        S2Forum Freak
                        • Nov 2004
                        • 4129

                        #446
                        oh, ok! Thanks a lot
                        Go Holset or Go RS4

                        Comment

                        • Matt5
                          S2Forum Tinkerer
                          • Jun 2013
                          • 9
                          • Country: Brazil

                          #447
                          You go use forged main caps and a main bearing girdl?

                          Comment

                          • Matt5
                            S2Forum Tinkerer
                            • Jun 2013
                            • 9
                            • Country: Brazil

                            #448
                            You go use forged main caps and a main bearing girdl? Congratulations for you project, i have an very similar using the short block and hx40.

                            Comment

                            • Billman
                              S2Forum Freak
                              • Nov 2004
                              • 4129

                              #449
                              I had to remove the girdle. Make a project thread abotu your engine it would be interesting to see.
                              Go Holset or Go RS4

                              Comment

                              • AndyP
                                S2Forum Zealot
                                • Feb 2004
                                • 6049
                                • Country: England

                                #450
                                Any updates??
                                sigpic
                                1991 Audi S2 3B - 2.5 Stroker engine
                                1997 A6 2.5TDi quattro avant - C4
                                1976 RD250E / 350LC cafe racer

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