Bigger Turbo......

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  • jubjub
    S2Forum Extremist
    • Nov 2003
    • 1239
    • Country: England

    #1

    Bigger Turbo......

    I think i am in need of more power So how easy is it to upgrade the turbo? If i go for a KKK26/27/29 is it a straight forward fit? What other bits are needed,pipes/hoses/injectors etc? Dare anyone answer, what sort of cost would i be looking at?
  • Doug_RS2
    S2Forum Possessed
    • Jul 2003
    • 3847
    • Home: Scotland Current: England

    #2
    It is not a straight fit.

    You need a 10mm spacer for the oil feed line - Tom is getting one made for Paul just now.

    I think the standard water feed can be slighlty bent to fit.

    You need an adapter to get the hose to the inlet of the turbo to fit - or go custom inlet hoses route with cone. Mihnea can get a metal adapter - I'm not sure if that can be used with the standard hose (just chopped up a bit).

    RS2 injectors should be ok.

    Good for 420bhp (maybe a bit more) - not that hard an upgrade - the cost will be the turbo, maybe the metal inlet pipe and maybe a couple of silicon hoses - around £1300 + remapping.

    Nick has just done this on his RS2, apart from he is going with the MTM inlet as well.

    Other options would be the Garret style turbos - I don't know anything about them.
    S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

    Comment

    • APNess
      S2Forum Addict
      • Jul 2003
      • 479
      • Country: United Kingdom

      #3
      You can use a 70-60mm reducer hose to adapt the existing inlet pipe to turbo (if it's a K26/27 it's 70mm inlet - Doug is k26/27/29 bigger ?). I nicked mine off my MarkH modded i/cooler (now replaced) and used a piece of stainless steel pipe (would you believe, a exhaust trim - I was in a hurry, dammit) to strengthen the hose so you can put a clamp on it. SFS had 4 left when I ordered my last one. About £28 incl postage and circlips.

      The 10mm spacer thing is a must though, unless you wanna twiddle your thumbs after finding out the leaky way that you can't do without it (Like I'm doing )

      PJ
      'The Bacofoil Express'...

      No more.

      Leon TDI 150 run in now.

      Very slow.

      Needs a chip.

      Comment

      • Doug_RS2
        S2Forum Possessed
        • Jul 2003
        • 3847
        • Home: Scotland Current: England

        #4
        Turbo inlet is 70mm on my k26/27/29
        S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

        Comment

        • jubjub
          S2Forum Extremist
          • Nov 2003
          • 1239
          • Country: England

          #5
          Whats the benefit of the MTM inlet? Do you need an exhaust manifold, SportQuattro/custom ?

          Comment

          • Doug_RS2
            S2Forum Possessed
            • Jul 2003
            • 3847
            • Home: Scotland Current: England

            #6
            How much power do you want Jubjub? Have you had your car remapped by Mihnea yet?
            S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

            Comment

            • OZzzt
              S2Forum Buff
              • Mar 2004
              • 43

              #7
              My K27/29 has a 107mm inlet. Even bigger than 4". Try finding a rubber hose for that!


              OZzzt

              Comment

              • 91_S2
                S2Forum Maniac
                • Jul 2003
                • 612

                #8
                Originally posted by Doug_RS2
                Turbo inlet is 70mm on my k26/27/29
                Doug,

                Could you - or anyone - explain the 3 designations 26/27/29? Two I can see - but have been wondering about the third.

                Comment

                • Doug_RS2
                  S2Forum Possessed
                  • Jul 2003
                  • 3847
                  • Home: Scotland Current: England

                  #9
                  K26 hotside, K27 coldside compressor housing that is modified to take a k29 compressor inside it. I think!
                  S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

                  Comment

                  • 91_S2
                    S2Forum Maniac
                    • Jul 2003
                    • 612

                    #10
                    Originally posted by Doug_RS2
                    K26 hotside, K27 coldside compressor housing that is modified to take a k29 compressor inside it. I think!
                    Cheers Doug,

                    Sounds logical. When in doubt one would have to look at the spec plate to see which housing carried the larger wheel.

                    Comment

                    • timucin
                      S2Forum Maniac
                      • Nov 2003
                      • 869
                      • Country: Turkey

                      #11
                      why dont you use american turbos?
                      much cheaper ,almost half price..?!?


                      turbonetics?turbo city?etc..
                      Quattro

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