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Turbo selection for a 5.7 V8

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    Turbo selection for a 5.7 V8

    Want:
    The low spools
    The low boosts

    Do not want:
    The 1,000 horse powers
    The max boosts at max RPMs


    Something that spools at idle and hits 6 PSI between 1500-2000RPM on the LS1 would be purrrfect. If it starts to run out of huff by 5 or 6 grand that's fine. I just want the torques.

    I'm thinking:
    • T76 - nothing fancy, just oil cooled
    • T4 flange
    • Compressor a/r around 0.8, with inducer 75mm, exducer 100mm or so
    • Turbine a/r around 0.7, Inducer 65mm, exducer 75mm
    • Simple journel bearing job will do
    • V-band if I can afford it



    I'm worried I've either gone too far and it'll be cracking 6 PSI at idle, or not far enough and it'll be a big, laggy piece of shit.

    Can any guru's here offer their 2c? Will this do the job for something nice and responsive?

    #2
    GT35 off an XR6T?

    Comment


      #3
      Would a precision 67/66 journal do the job about the same but with a modern design? Lots of A/R options.
      this signature intentionally left blank

      Comment


        #4
        I hadn't quite got as far as brands or part numbers yet.

        I was more wondering if my choice of AR's and inducer/exducer sizes were on the money for what I was after in terms of 6 PSI up to 5 or 6 grand, super responsive.

        Even my flange choice was a bit uncertain. Lots of people say for the LS engines it's gotta be T6, but that just seems like overkill for what I need.

        Comment


          #5
          i know nothing about turbos

          but my G6E made 14psi @ 2200rpm

          and thats a 4L, so id say with that turbo you'll easily bend your rods @ 2000rpm
          ..........

          Comment


            #6
            Originally posted by MexicanBatman View Post
            and thats a 4L, so id say with that turbo you'll easily bend your rods @ 2000rpm
            Exactly this.
            Running massive boost at idle is a real worry, so I want it to be responsive but if i go too far it'll just go bang.

            Comment


              #7
              Pte 6870
              Originally posted by piss98
              I wish Kochie would get blown out to sea and never found, in fact most of those dumb cunts standing in the rain telling people not to stand in the rain need to get fucked. Stupid tart on the news last night talking to the weather guy "wow you look totally drenched there whateverthefuckhisnamewas." No shit you vapid bitch he is standing in a fucking cyclone.

              Comment


                #8
                Originally posted by 2rismo View Post
                Pte 6870
                Yeah, my budget is more like
                http://www.ebay.com.au/itm/291380351...%3AMEBIDX%3AIT

                Only the best for my LS1.

                Comment


                  #9
                  Had a GT35/40r then swapped to a T04z.


                  For the money, the 35/40r was great.

                  T6 flange not necessary.

                  Comment


                    #10
                    with your vague idea of what you want, 1.06 GT35/40 is my immediate thought.
                    Originally posted by Mr Jones
                    Farmer its all about how you cut them up, like a dead hooker jigsaw puzzle.

                    Comment


                      #11
                      You don't think 1.06 is too large?

                      Comment


                        #12
                        Originally posted by J View Post
                        You don't think 1.06 is too large?
                        1.06 GT3582R is what Ford put on a BA/BF 4L. Will be on full boost sub 2500rpm, and good for mid 400rwkw figures.

                        Comment


                          #13
                          2x 3582s on a 5.7 was a animal by 3000 so 1 would be on way early

                          Comment


                            #14
                            Originally posted by J View Post
                            You don't think 1.06 is too large?
                            1.06 on a GT35 turbine is very different to a 1.06 on a GT55 or GT12 turbine.
                            Originally posted by Bosshoggett
                            If your planing to drive this on the road and enjoy it, id suggest a second opinion, someone with a history in Australian Rally or Fink River . If your just playing dyno comps. Then ok

                            Comment


                              #15
                              Originally posted by vsute1998 View Post
                              2x 3582s on a 5.7 was a animal by 3000 so 1 would be on way early
                              this...
                              im a cunt
                              and apparently i dont know shit...

                              Comment

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