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s400 small 83/74 turbin housing?

Discussion in 'Turbo Tech Questions' started by jeff115, May 8, 2011.

  1. jeff115

    Joined:
    Mar 13, 2011
    Is there any one that makes or has machined a housing smaller than .90 on to a s400?
     
    jeff115, May 8, 2011
    #1

  2. jeff115

    Joined:
    Mar 13, 2011
    Bump
     
    jeff115, May 8, 2011
    #2

  3. wantabe

    Joined:
    Oct 12, 2010
    why?
    the divided housing probaly equals a .81- .82 single entry
     
    wantabe, May 9, 2011
    #3

  4. Drac0nic

    Joined:
    Feb 28, 2005
    What are you using it on? Ultimately having a ton of turbine back pressure will kill whatever engine it's on if the pressure is too high. Just something to keep in mind.
     
    Drac0nic, May 9, 2011
    #4

  5. jeff115

    Joined:
    Mar 13, 2011
    Its on a 5.9 diesel I have an external gate to keep drive pressure under control but I would like to get a little better spool up speed
    i can live with the time it takes now but I'll be adding a larger turbo to compound and that will make it a little laggier. So I'm looking for ways to help get some streetability back once the second turbo is on
     
    jeff115, May 12, 2011
    #5

  6. wantabe

    Joined:
    Oct 12, 2010
    whats your rpm ?
    i have something simular here , combo wise
    will look in the morning
     
    wantabe, May 12, 2011
    #6

  7. xr8tt

    Joined:
    Feb 14, 2003
    With some pics ????
     
    xr8tt, May 12, 2011
    #7

  8. jeff115

    Joined:
    Mar 13, 2011
    Right now I shift at about 3400 rpm. When the compounds are on I will shift around 42-4500rpm.
     
    jeff115, May 12, 2011
    #8

  9. wantabe

    Joined:
    Oct 12, 2010
    ok,
    this deal is a 75mm turbine
    s4d BW ( different to the s400)
    10 lt cat engine
    1800 rpm

    sorry different
     
    wantabe, May 12, 2011
    #9

  10. jeff115

    Joined:
    Mar 13, 2011
    Bump
    Any one make custom exhaust housings? :welder:
     
    jeff115, May 15, 2011
    #10
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