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Holset Turbos, PART 7

Posted by Morphius, Oct 30, 2009

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  1. We're on Boost

    We're on Boost Proven Member

    926
    76
    Joined Aug 25, 2007
    Seattle area, Washington
    Justin, how come the surface of the chra and turbine housing looks so good in this picture? What did you do to it? What kind of coating? How long will it be not rusty looking after you start driving it?
     

    4K  19

    1990 Eagle Talon TSi AWD
    650 whp · 510 lb/ft · 1G DSM

    2K  0

    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  2. JusMX141

    JusMX141 Moderator

    12,761
    744
    Joined Dec 13, 2005
    Greensburg, Pennsylvania
    Media-blasting while the turbo is completely apart, thorough cleaning of both housings, then a recoat with cast blast.


    The high-temp stuff is supposedly good to 1200*f, and has remained visible on the turbine housing even after a full season of racing on local customers' and friends' cars.
     

    2K  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM

    5K  14

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    2K  0

    1992 Eagle Talon TSi
    manual · 1G DSM

    3K  0

    1993 Eagle Talon TSi AWD
    manual · 1G DSM
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  3. LiquidX

    LiquidX DSM Wiseman

    6,607
    103
    Joined Sep 19, 2008
    Anywhere, Pennsylvania
    Hopefully this will be the right spot. Two things here:

    1. Justin rebuild my turbo and it's amazing so for anyone that needs it, do it :thumb:
    2. This is how my setup will look and to help with more pictures :coy:

    IMG_4897.jpg
    IMG_4898.jpg
    IMG_4896.jpg
    IMG_4899.jpg
    IMG_4895.jpg

    I coated the manifold and turbine housing in VHT ceramic paint and the compressor cover was just done in dupli-color (wondering how long it will actually hold up LOL). The CHRA was coated by Justin but matched up VERY well to the other pieces.
     

    Street Build 2K  0

    1997 Eagle Talon TSi AWD
    manual · 2G DSM
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  4. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    How many CHRA-to-turbine housing bolts are you guys able to bolt up?

    I was only able to bolt up 4 of the 6 because the feed and drain flanges were getting in the way but now im thinking that i could've clocked the housing while installing them and I could've installed all 6...
     
  5. LiquidX

    LiquidX DSM Wiseman

    6,607
    103
    Joined Sep 19, 2008
    Anywhere, Pennsylvania
    That's exactly what you need to do John. It'll mainly be at the oil flanges where you will need to turn the CHRA to allow you to get the final bolts in. I do have all 6 installed.
     

    Street Build 2K  0

    1997 Eagle Talon TSi AWD
    manual · 2G DSM
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  6. logic

    logic Proven Member

    623
    22
    Joined Jun 11, 2002
    Berkeley, California
    I haven't had any problem with clearance for all six bolts so far, and my CHRA has water cooling provisions, meaning I have even less room to work with. ;) You do have to play with clocking it back and forth a bit, and slim wrenches help.
     

    1K  7

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  7. snowborder714

    snowborder714 Moderator

    12,071
    224
    Joined Oct 15, 2006
    Mechanicsburg, Pennsylvania
    Looks nice!

    If you ever want something else done with the compressor housing (powdercoat maybe), let me know.


    Oh, and Justin didn't coat the CHRA. My guess is you're referring to the exhaust housing.
     

    3K  0

    1995 Mitsubishi Eclipse GST
    12.529 @ 110.820 · 2G DSM
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  8. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    CRAP! Now I have to unbolt the damn turbo and play with the clocking...
     
  9. LiquidX

    LiquidX DSM Wiseman

    6,607
    103
    Joined Sep 19, 2008
    Anywhere, Pennsylvania
    I only sent him the Center Housing Rotating Assembly (CHRA), wheels exposed... :p

    But on a side note, I will consider your offer Brian as I doubt car paint will last under the hood :)


    Ed, it's not the fact the wrenches don't fit, it's that the bolt holes are directly under the oil fittings not allowing removal/installation of the bolt under the fitting without clocking the CHRA to allow the removal/installation. You obviously have a different setup than the HX40 I posted, would you be able to get any pictures of your setup?
     

    Street Build 2K  0

    1997 Eagle Talon TSi AWD
    manual · 2G DSM
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  10. snowborder714

    snowborder714 Moderator

    12,071
    224
    Joined Oct 15, 2006
    Mechanicsburg, Pennsylvania
    Bah, I'm an idiot. I forgot there is a small portion of the CHRA you can paint.

    I need sleep LOL
     

    3K  0

    1995 Mitsubishi Eclipse GST
    12.529 @ 110.820 · 2G DSM
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  11. We're on Boost

    We're on Boost Proven Member

    926
    76
    Joined Aug 25, 2007
    Seattle area, Washington
    Is it actually this "Hot Spot" stuff? It comes in color "cast blast" and 3 other colors.

    Hot Spot Spray Paint
     

    4K  19

    1990 Eagle Talon TSi AWD
    650 whp · 510 lb/ft · 1G DSM

    2K  0

    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  12. Gooberlog

    Gooberlog Proven Member

    1,104
    3
    Joined Dec 30, 2002
    Westminster, Maryland
    So i'm still waiting for the right turbo to get here, maybe today or tomorrow i hope, but my bolt on BEP .55 housing came in. Ordered it from Amy at Bullseye Performance and she shipped out exactly what i ordered. $270 shipped and got to Maryland at my house in less than three days.

    I called up Tim's Turbos first and they said they'd have some in at the end of the week. Called them the next week and still none in. BTW, the one phone number i got a hold of him the first time and then i got the answering machine the next 10 times so i found another phone number for them on their site and they answered that one the first time. When i called back to check to see if they came in the next week, he said no. He said it looks like Bullseye has them in stock though, you just want to call them? I said yeah, and 3 days later it's at my house. Here it is, HX35 bolt on .55 housing set up with no WG flapper to run tial off the o2 housing. :rocks:
     

    Attached Files:

    853  0

    1992 Plymouth Laser RS Turbo AWD
    11.180 @ 127.000 · 1G DSM
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  13. joyfil2001

    joyfil2001 Proven Member

    577
    0
    Joined Dec 17, 2007
    Toms River, New Jersey
    Well I got a local machine shop to do this for me. He did a damn good job too. Probably spent more time talking to him about nonsense then he actually did working on my housing.
     

    440  0

    1995 Eagle Talon TSi AWD
    13.500 @ 99.000 · 2G DSM
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  14. knochgoon24

    knochgoon24 DSM Wiseman

    4,753
    65
    Joined Jan 29, 2008
    Troy, Michigan
    I was cruising around the internet after stumbling upon a H2A on eBay. I'd never hear of it before, so I did some searching. Here's what I found about it.

    From: Saabiklubi foorum - Kuidas teha korralikku väljalaskekollet / How to build decent exhaust manifold -

    I see vigge posted in the thread. He has some stuff about Holsets in his Saabs somewhere on this site.

    compressor inducer - 50 mm
    compressor exducer - 82 mm
    TRIM - 37

    turbine inducer - 75 mm
    turbine exducer - 64 mm
    (11 blades, hard to measure)
    Turbine housing is a 16 cm2 one. (or is it 18, hard to read)

    [​IMG]
    [​IMG]

    He's putting it in some sort of Saab.

    The one on eBay is going for super cheap, but it's also not in the greatest shape. Holset H2A Turbo : eBay Motors (item 290428740369 end time May-02-10 00:34:09 PDT)

    I figured I'd put the info on here for the next person who searches.
     

    2K  1

    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

    1K  0

    1991 Eagle Talon N/T
    manual · 1G DSM

    2K  0

    1996 Mitsubishi Eclipse GST
    automatic · 2G DSM

    2K  0

    1997 Eagle Talon TSi AWD
    13.869 @ 95.090 · 2G DSM
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  15. RiGs2G

    RiGs2G Proven Member

    105
    1
    Joined Mar 9, 2006
    Lancaster, California
    Here are pictures of my return line set up and my internal wastegate. Any questions let me know. I jsut started the car this morning, and so far no leaks (knock on wood)
    th_holsetinstall001.gif
    th_holsetinstall002.gif
    th_holsetinstall003.gif

    I made the internal wastegate piece (in green) out of 3/8 steel brake line. I curved it into an "S" shape and then flattened the one side to drill a hole into it for the wastegate flapper. Ill let you know how it holds up
    th_holsetinstall004.gif
    th_holsetinstall005.gif
    th_holsetinstall006.gif

    Just took the car for a test drive, and the turbo is pretty laggy. And with my boost controller turned all the way out, its boosting 25 psi! Thats more then I want to run on pump gas. Any ideas? Thanks
     

    299  0

    1996 Eagle Talon TSi AWD
    12.830 @ 107.890 · 2G DSM
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  16. joyfil2001

    joyfil2001 Proven Member

    577
    0
    Joined Dec 17, 2007
    Toms River, New Jersey
    First of all make sure that return line isn't kinking. What kind of hose is that?

    If your boost controller has no effect on boost control, something is wrong. Your wastegate might not be opening correctly.
     

    440  0

    1995 Eagle Talon TSi AWD
    13.500 @ 99.000 · 2G DSM
    Loading...
  17. RiGs2G

    RiGs2G Proven Member

    105
    1
    Joined Mar 9, 2006
    Lancaster, California
    There are no kinks in the return line, its a straight shot. I got the hose from Autozone, its a molded heater hose. 3/4 inch. I hit the wastegate acutator with some compressed air and it seems to be opening ok, but I did that before i mounted it on the turbo. Ill check that. Thanks. Any other ideas?
     

    299  0

    1996 Eagle Talon TSi AWD
    12.830 @ 107.890 · 2G DSM
    Loading...
  18. joyfil2001

    joyfil2001 Proven Member

    577
    0
    Joined Dec 17, 2007
    Toms River, New Jersey
    Do a boost leak test. You would be surprised where little boost leaks can hide. And the smallest leak CAN affect spool.
     

    440  0

    1995 Eagle Talon TSi AWD
    13.500 @ 99.000 · 2G DSM
    Loading...
  19. turboboy4

    turboboy4 Proven Member

    224
    1
    Joined Mar 27, 2007
    Laramie, Wyoming
    Be careful using heater hose, it will eventually get spongy and break down from the oil I dought it was designed for oil to run through it
     

    479  0

    1998 Eagle Talon TSi AWD
    11.584 @ 120.970 · 2G DSM
    Loading...
  20. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    I see your point on the heater hose issue.
     
    Last edited: May 23, 2010
  21. cooldude919

    cooldude919 Proven Member

    183
    1
    Joined Feb 19, 2007
    Cape Girardeau, Missouri
  22. jrohner

    jrohner Proven Member

    2,557
    9
    Joined Sep 25, 2004
    Willmar, Minnesota
    Double check that the WGA holds a slight bit of pull, so you know the flapper is held sealed shut.

    Did you port the wastegate opening at all? My 1G with the BEP bolton, external off the o2 housing creeps past 25psi.
     

    2K  0

    1991 Mitsubishi Eclipse GSX
    11.415 @ 119.59 · 1G DSM

    4K  0

    1998 Mitsubishi Eclipse GSX
    414 whp · 459 lb/ft · 2G DSM
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  23. jjrock5

    jjrock5 Proven Member

    1,320
    12
    Joined Mar 19, 2006
    Around, Connecticut
    Last edited: May 23, 2010
  24. JusMX141

    JusMX141 Moderator

    12,761
    744
    Joined Dec 13, 2005
    Greensburg, Pennsylvania
    Currently working on a billet 8-blade HX40 setup for my buddy Dean to use on his RX7. He recently destroyed the turbine wheel on the GT4088 that was on the car, and while he liked the performance of the 4088 he opted for something with a little quicker spool in exchange for a little peak airflow that he wasn't really using anyway (on running 18psi on the 4088). The car traps almost 130 with the 4088 in place; his E.T.'s aren't as impressive, however, due to the lag.

    It will be a 8-blade billet HX40 in the T4 divided 17cm housing, flapper welded shut. I'm quite excited to see how this turbo will hold up on his car!

    Here are a couple underhood pics of the car with the 4088 in place; the cheap XS Power intercooler will be upgraded to a true front mount soon as it's placement (behind the radiator) does nothing to cool the intake charge:
     

    Attached Files:

    2K  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM

    5K  14

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    2K  0

    1992 Eagle Talon TSi
    manual · 1G DSM

    3K  0

    1993 Eagle Talon TSi AWD
    manual · 1G DSM
    Loading...
  25. GST95

    GST95 Proven Member

    200
    2
    Joined Jun 23, 2002
    Bristol, Indiana
    Are you using the Holset actuator? If so, its probably got too much spring. IIRC, the lowest Holset actuator is on the WH1C at 17psi. Make sure its putting pressure on the flap when its suppose to be closed too.
     
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