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Thread: External wastegate!!

  1. #1
    GTRCer measrR32's Avatar
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    External wastegate!!

    I am fairly new to this game and would appreciate your guys help, Ive been trying to research some stuff but not getting all the answers so I figured I'd ask myself,
    Correct me if I'm wrong..
    I want a screamer pipe and from what I read its conntected to an external wastegate, how do I achieve this setup?!?! My knowledge is not that strog when it comes to this but I want to learn, I have Garret 2860r turbos

  2. #2
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    An internal waste gate inside the turbo will bleed the excess air pressure and dump it into the downpipe

    An external waste gate is attached to the turbo manifold, not the turbo
    The waste gate again will bleed off excess pressure that the turbo doesn't need except it bleeds it into the atmosphere.
    The screamer pipe can be any size, just route it paralell to the down pipe and attach it to the waste gate
    Now when you hit full boost the excess air pressure will SCREAM along side your motor
    R33 GTST RB25DET series 1
    Stock motor, holset HX40, power fc d-jetro, bolt ons, 20psi = 492rwhp 364 lbft

  3. #3
    GTRCer measrR32's Avatar
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    Quote Originally Posted by r33_gtst View Post
    An internal waste gate inside the turbo will bleed the excess air pressure and dump it into the downpipe

    An external waste gate is attached to the turbo manifold, not the turbo
    The waste gate again will bleed off excess pressure that the turbo doesn't need except it bleeds it into the atmosphere.
    The screamer pipe can be any size, just route it paralell to the down pipe and attach it to the waste gate
    Now when you hit full boost the excess air pressure will SCREAM along side your motor
    Got it, so to achieve this setup I wAnt I need to get a new turbo manifold that excepts external wastegates? Or does every type work?

  4. #4
    Supraclean's Avatar
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    Different manifolds/ custom fabrication or Convert your twin setup to a single with manifold and run one big screamer. LOts of $$$$$ for just a screamer pipe.
    Traction is optional, so are zipties

    92 Gtst/Silver bullet

  5. #5
    GTRCer
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    These might be your best route
    Twin dump pipes with the internal wastagate bleed off pipes (screamer pipe)
    Would still sound bad ass
    http://www.jperformance.co.uk/images...AMER-MAIN1.jpg
    R33 GTST RB25DET series 1
    Stock motor, holset HX40, power fc d-jetro, bolt ons, 20psi = 492rwhp 364 lbft

  6. #6
    GTRCer measrR32's Avatar
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    Quote Originally Posted by r33_gtst View Post
    These might be your best route
    Twin dump pipes with the internal wastagate bleed off pipes (screamer pipe)
    Would still sound bad ass
    http://www.jperformance.co.uk/images...AMER-MAIN1.jpg
    Thatd be great!!! If they had them or the rb26dett says only rb20 n rb25det...
    Do I have any other options!?!?

  7. #7
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    you're basically looking for this>


    what I had done for my setup was :

    1. had a wastegate flange welded to my STOCK exhaust manifold
    2. Bought a Externally Gated Turbo
    3. had a custom screamer made

    you can take the actuator and wastegate flap from your stock turbo and seal it using a back plate and run a external gate on your stock turbo dude.Check my build thread if you want to see pics "fat kids can have cool cars too"

  8. #8
    GTRCer S13Jordie's Avatar
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    if its for a gtst i have a screamer elbow for sale. it bolts right up to the turbo BNIB comes with all the gaskets and hardware


  9. #9
    GTRCer narface's Avatar
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    Does anyone have a video of a GT-R running with a screamer pipe? I want to hear what it sounds like!

  10. #10
    GTRCer S13Jordie's Avatar
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