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thinking about an external gate for my holset

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  • thinking about an external gate for my holset

    Holsets are badd ass and like to build ALOT of boost. I cant get less than 12psi most the time and sometimes it will not push less than 18psi. This is clearly a problem with the wastegate i am running. But even if i unhook the wastegate completely and let the flapper be wide open it still builds alot of boost. So im thinking about going with an external so i can run low boost around town, like 8-10psi then high boost 20+psi. This will also prepare me for a future turbo upgrade that will need an external gate. Im thinkin a HX35/40 hybrid.... thoughts? brand for gate i should look into? I have an audi external gate....its really big though

  • #2
    roastin300 wrote: Holsets are badd ass and like to build ALOT of boost. I cant get less than 12psi most the time and sometimes it will not push less than 18psi. This is clearly a problem with the wastegate i am running. But even if i unhook the wastegate completely and let the flapper be wide open it still builds alot of boost. So im thinking about going with an external so i can run low boost around town, like 8-10psi then high boost 20+psi. This will also prepare me for a future turbo upgrade that will need an external gate. Im thinkin a HX35/40 hybrid.... thoughts? brand for gate i should look into? I have an audi external gate....its really big though
    Define really big? I dont know how big the audi's are.

    I would run a minimum 38mm.The larger it is the easier it controlls boost. I'm ditching my 40mm and jumping up to a 50mm that is sitting on my entertainment center.

    this is the setup I picked up.

    http://cgi.ebay.com/ebaymotors/50MM-WAS ... 9884QQrdZ1

    seems to be good quality although the valve is not stainless. but I think it will be fine. the fricken wastegate is huge though.
    85 Z31 6.0 LSX turbo 766whp/792wtq
    04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

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    • #3
      Or you could run one of these bad mamajamma's
      http://cgi.ebay.com/ebaymotors/60mm-HKS ... 2545QQrdZ1

      The HKS brand goes for about $800 or so! My friend has one of these and it seems to be REALLY good quality. I was suprised.

      Kinda overkill though :roll:
      85 Z31 6.0 LSX turbo 766whp/792wtq
      04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

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      • #4
        SATAN wrote: Or you could run one of these bad mamajamma's
        http://cgi.ebay.com/ebaymotors/60mm-HKS ... 2545QQrdZ1

        The HKS brand goes for about $800 or so! My friend has one of these and it seems to be REALLY good quality. I was suprised.

        Kinda overkill though :roll:
        heh, I like how it looks like they ran out of characters on the title so they made sure the 'le' from 'hks style' were the first to go. :lol:
        Lance 'never-ending 88na2t project' Landry
        I sell Z stuff when I'm not being lazy.
        Trace cell phones via GPS: http://www.phonetrace.org

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        • #5
          Tial all the way

          I have two of these waiting for my setup
          http://www.atpturbo.com/Merchant2/merch ... y_Code=WGT
          V-Band FTW

          If you want something cheaper and smaller
          http://www.atpturbo.com/Merchant2/merch ... y_Code=WGT
          I had one of these on my old setup. I had no problems at all controlling boost
          2005 whore magnet

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          • #6
            I can't see needing a 50+mm valve. When you look at what so many people have used successfully it makes me think the design of the piping it's on is more important.

            I can run 9 psi on my 60-1 with NO creep/spike/wavering of any kind. Whatever I set it to, is what it runs. If you watch the guage it slams up against that number and stays.

            Racegate with 9psi spring.
            http://z31performance.com/forum/viewtopic.php?f=5&t=147

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            • #7
              Like Steve suggested, the Tials are at a good price and work great.

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              • #8
                A friend of mine also has an Hx-35 and since it has a divided housing, his wastegate was only bleeding off exhaust from one side until he cut out some of the divider in the turbine inlet. Maybe your setup is different but I thought I'd mention it. Norm
                86 Turbo

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                • #9
                  Tials are awsome because they come with a stainless steel valve. However when I pick a wastegate or a BOV I usually(depending on what it is) have no problem going cheap due to the fact that both of those pieces are pretty hard to screw up.

                  I've got an HKS knockoff 40mm with a profec B boost controller and it works fan fricken tastic.
                  85 Z31 6.0 LSX turbo 766whp/792wtq
                  04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

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                  • #10
                    Thats good to hear! I wanted to buy a cheapy knockoff but wasnt sure if it would be shitty considering the turbos they sell. I will buy a cheapy now that i know they work good! Satan, want to sell the old 40mm knockoff? how much?

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