Lets Talk about BIG Turbos..

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  • RS2 Sedan
    S2Forum Fanatic
    • Nov 2003
    • 94

    #1

    Lets Talk about BIG Turbos..

    i use now a K27 with #9 hotside..
    what about the garret and the Ball bearing garrets?
    my engine is complete modified, as xyou can see in another thread of me..
    how is the spool and max power with this ones:
    GT3071R
    Garrett GT35/40R
    Garrett GT40R
    Garrett GT42R / RS

    or which one? engine can run 8500rpm, i use dahlback EM
    must be the highest possible hp, spool under 4.5k if possible
    '94 (R)S2 Sedan
    Engine:
    81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

    Chassis:
    KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

    Body:
    RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon
  • Hacke
    S2Forum Enthusiast
    • Jun 2004
    • 157
    • Country: Sweden

    #2
    Garrett GT35/40R
    HackeRacing

    AG:s Norrkoping Sweden

    Comment

    • RS2 Sedan
      S2Forum Fanatic
      • Nov 2003
      • 94

      #3
      thx for your reply hacke..
      have some questions..
      there are several turbine housings..: .63 ar, .82 ar, 1.06 ar
      which one is the right, what about spool and how much power can i get?
      '94 (R)S2 Sedan
      Engine:
      81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

      Chassis:
      KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

      Body:
      RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon

      Comment

      • Mark Halligan
        S2Forum Fiend
        • Jul 2003
        • 2001
        • Country: England

        #4
        Originally posted by RS2 Sedan
        thx for your reply hacke..
        have some questions..
        there are several turbine housings..: .63 ar, .82 ar, 1.06 ar
        which one is the right, what about spool and how much power can i get?
        I havent fitted it yet but I have a 35/40R with the .82ar housing.

        I know Albert here used to use one with the same .82ar hotside, and I think I remember him saying that he had full boost by 4k rpm.

        Mark.
        Mark - Modded

        Comment

        • RS2 Sedan
          S2Forum Fanatic
          • Nov 2003
          • 94

          #5
          sounds ok
          hmm but i want to get over 600 hp..
          '94 (R)S2 Sedan
          Engine:
          81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

          Chassis:
          KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

          Body:
          RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon

          Comment

          • Mark Halligan
            S2Forum Fiend
            • Jul 2003
            • 2001
            • Country: England

            #6
            Originally posted by RS2 Sedan
            sounds ok
            hmm but i want to get over 600 hp..
            1.06 a/r will flow more and make more power, don't know when it will spool up the though. You could always try the two hotsides out back to back in testing. Not a cheap exercise though as the housings are about $200 each, I did read somewhere about someone trying this out on a dyno, only took about 40 minutes to swap them over (with cool down time) cant remember the results though.

            Some info here from a BMW forum http://forums.bimmerforums.com/forum...d.php?t=208662
            Mark - Modded

            Comment

            • caterpillar
              S2Forum Fiend
              • Jun 2004
              • 2480

              #7
              i want to use the garret gt 40 with 0.94 hotside,the i may try to swap over the garret gt 42 or 45 kompressor.....but ive bee dobbelcrossed for the trade 8-((

              Comment

              • RS2 Sedan
                S2Forum Fanatic
                • Nov 2003
                • 94

                #8
                thx for the info and the link! 580 rwhp on a old m3 with 1.06 a/r housing sounds nice
                '94 (R)S2 Sedan
                Engine:
                81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

                Chassis:
                KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

                Body:
                RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon

                Comment

                • sorens2
                  S2Forum Addict
                  • Feb 2004
                  • 241
                  • Country: Denmark

                  #9
                  I know one who has a GT35R with 1.06 doing 605 BHP and 780 Nm @ 4500 rpm
                  Redline @ 7500 so if you go for 8500 you will have a lot more power.
                  Motor: 2,6 turbo 4x4, garret gt3 - Hestekræfter: 220 hk i 1991 Og nu er b - Dæk: 225x45x17 toyo r888 gad - Fælge: kosei gun metal fælge 17"


                  Søren S2
                  Audi RS4 LO550

                  BTG 8:08

                  www.fredslunds.dk

                  Comment

                  • RS2 Sedan
                    S2Forum Fanatic
                    • Nov 2003
                    • 94

                    #10
                    thx SøernS2 sound really good
                    '94 (R)S2 Sedan
                    Engine:
                    81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

                    Chassis:
                    KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

                    Body:
                    RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon

                    Comment

                    • Albert
                      S2Forum Extremist
                      • Aug 2003
                      • 1500
                      • Country: Poland

                      #11
                      GT35R is rated 600rwhp. It is posible to have 600HP crank with 0.82
                      AKmotorsport.net - Manufacturing Motorsport parts that do the job. | Audi S2 on Facebook | Best way of reaching me is sending email to albert@akmotorsport.net

                      Comment

                      • RS2 Sedan
                        S2Forum Fanatic
                        • Nov 2003
                        • 94

                        #12
                        thyx, anyone some more idea?
                        '94 (R)S2 Sedan
                        Engine:
                        81.4mm Forged Mahle Pistons, Pauter Rods, PKM Crankshaft V2, PKM Head V3 , PKM IM,CM Intercooler,Special Headbolts, SQ MAF,Samco Hoses, GT2Injectors, Dahlbäck Racing EM, KKK27 #9 Hotside, CM 76mm SS Exhaust, no cat

                        Chassis:
                        KW Competition, Porsche 933 Turbo Brake 322x32, 4 Caliper, Porsche GT3 Wheels 18"

                        Body:
                        RS2 Frontbumper, RS2 Rearbumper, RS2 Mirrors, RS2 MiddleTaillight, Black Hella Taillights, RS6 Bixenon

                        Comment

                        • Erikb
                          S2Forum Maniac
                          • Jul 2004
                          • 648
                          • Country: Netherlands

                          #13
                          Maybe this can come in handy, a lot of garrets including flow maps are displayed on this site

                          garrett (garrett link)
                          Getting everything sorted out for my 5++ hp project

                          Comment

                          • palles2
                            S2Forum Enthusiast
                            • Feb 2004
                            • 133

                            #14
                            Hi

                            I have a garret gt35r, with 605 hk and 775 nm. with 0.82 hotside, the one søren was talking about....
                            402 m 10,99 on street tires.

                            659 BHP - 858 nm. 2,6 ccm with 10 x rs2 injectors
                            garret gt35r turbo with 1.06 hotside


                            2,5 bars of boost :mischeif:

                            Comment

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

                              #15
                              Palles2 - When does that spool up? And what are you revving it to?
                              S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

                              Comment

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