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Who’s running high boost on tial 44mm wastegate?

Posted by 1cleangsx, Aug 21, 2019

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  1. 1cleangsx

    1cleangsx Proven Member

    140
    66
    Joined Sep 28, 2013
    Cheyenne, Wyoming
    Whats up guys, like the title states, I’m curious if there’s a way to get my wastegate to hold more than 35 psi, the car has been boost leak tested to 50 psi with no leaks, I know the 38 is a better gate for high boost, but my fp dsm82 is flanged for the 44 so I didn’t have a choice.
     

    Street Build 1K  11

    1990 Mitsubishi Eclipse GSX
    13.2 @ 104.64 · 1G DSM
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  2. Boomdeeze

    Boomdeeze Proven Member

    1,626
    270
    Joined Jul 5, 2009
    Independence, Minnesota
    Interesting, I just swapped my turbo from the DSM76 to the DSM82. I was running 37psi on the 76 using the 44mm, what psi are you shooting for? Are you only using the bottom port on the WG?

    I couldn’t get over 37psi with the 76 but I was only using the bottom port on the WG. I since swapped to the electronic boost controller and doing the two port method to help hold the WG shut.

    Here is the configuration I am going to run to keep it shut:

    BA4F4BC2-C5E9-4989-86C0-F203FD96A9A8.png
     
    Last edited: Aug 21, 2019

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  3. 1cleangsx

    1cleangsx Proven Member

    140
    66
    Joined Sep 28, 2013
    Cheyenne, Wyoming
    Thanks for the diagram, I might try and swap in a ebc this winter, there’s no rush or certain psi, just like to know I could still turn it up, as of now my hallman pro is cranked all the way LOL, the stock block wants more..
     

    Street Build 1K  11

    1990 Mitsubishi Eclipse GSX
    13.2 @ 104.64 · 1G DSM
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  4. Vegas smith

    Vegas smith Proven Member

    2,638
    1,221
    Joined Dec 2, 2002
    Houston, Texas
    I accidentally did 48psi a couple weeks ago on my ebc, 44mm, dsm76 setup...
     
    Last edited: Aug 22, 2019

    Street Build 3K  10

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  5. beansblacktsi

    beansblacktsi Proven Member

    235
    43
    Joined Apr 2, 2007
    Lincoln, Nebraska
    I run a single 44mm on a 72mm turbo and it is currently at 55psi. Doesn't seem to have any issues.
     
    beansblacktsi

    1K  0

    1992 Plymouth Laser RS Turbo AWD
    9.524 @ 145.390 · 1G DSM
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  6. Boomdeeze

    Boomdeeze Proven Member

    1,626
    270
    Joined Jul 5, 2009
    Independence, Minnesota
    What boost control setup do you run?

    Edit: I see you run twin gates, manual or EBC?
     

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  7. beansblacktsi

    beansblacktsi Proven Member

    235
    43
    Joined Apr 2, 2007
    Lincoln, Nebraska
    Sorry profile is out of date. The car is on one single 44mm as of now. Its setup on a 3 port electric boost controller. I dont remember exactly what springs are in the gate but there is a lot. On waste gate alone it makes around 35psi
     
    beansblacktsi

    1K  0

    1992 Plymouth Laser RS Turbo AWD
    9.524 @ 145.390 · 1G DSM
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  8. diambo4life

    diambo4life Proven Member

    1,014
    71
    Joined Apr 18, 2002
    Edmond, Oklahoma
    Tested on 49-50psi regularly. Single 44mm with twin blue springs. 23-24psi is wastegate pressure. I typically use both ports with an MBC.
     

    Drag Race Build 578  1

    1990 Mitsubishi Eclipse GSX
    manual · 1G DSM

    Street Build 3K  25

    1991 Mitsubishi Galant VR-4
    710 whp · 501 lb/ft · Galant VR-4
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