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SP51X (Hybrid K04-15)

Discussion in 'A4/S4 forum(B5 Chassis)' started by docurley, May 21, 2008.

  1. docurley
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    docurley Moderator Staff Member Moderator

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    [May 21, 2008]
    Well after buying a Dead K04-15 from Canada for $200 I now have a rebuilt Hybrid K04-15 SP51 nickname Outlaw.


    And here she is

    [​IMG]
    [​IMG]
    [​IMG]

    Plan are to fit her in two weeks time before I go on holiday (finger crossed) and then when I get back to install my secondhand Stage III southbends Clutch ($100) providing I sort out a single mass flywheel.

    Once this is done custon Exhaust will be on the cards before a Remap.

    I have big hopes for the turbo so we will see how it goes.
    #1
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  3. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 21, 2008]
    Looks good matey, i cant wait for mine, then i can sell my K04-15 to cover some of the costs
    #2
  4. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 21, 2008]
    do you have pics of the turbine ?? And whats the Dia of the inlet/outlet pipes please
    #3
  5. Lee Goodall
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    Lee Goodall ..got my head together!

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    [May 22, 2008]
    Nice one.. bet you can't wait to get it all together and get out for a test run. Keep us posted.
    #4
  6. Biglockie
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    Biglockie Aye you know it makes sense

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    [May 22, 2008]
    good price for trhe clutch Dave.
    #5
  7. docurley
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    docurley Moderator Staff Member Moderator

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    [May 22, 2008]
    im on my mobil so its not so easy to navigate but he you look in the gallery I have posted a couple of pics in there.
    #6
  8. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 22, 2008]
    Thanks Dave, hope you dont mind if i stick it here for you
    [​IMG]
    #7
  9. Soupie69uk
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    Soupie69uk Owner

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    [May 22, 2008]
    This is very interesting, can not wait to see what figures you guys get!!

    I want to eventually get an eliminator but may consider one of these if the numbers are good.
    #8
  10. Andy.B
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    Andy.B Member

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    [May 22, 2008]
    That turbo looks like a good spec doc will be good to see the figures from this setup. Did you not want to go for a larger manifold or a performance one for it at all?
    #9
  11. naefeart_A4
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    naefeart_A4 Bonkers

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    [May 22, 2008]
    When I spoke to Jim at Star about the purchasing an eliminator kit, he said that he was having trouble with some that had failed within a period of being installed in customers' cars. Said the supplier was being a bit awkward by not shipping replacements out without the old units being returned.

    Iirc, eliminators are turbos that have been rebuilt to a particular spec? Anyway, it put me off them.

    N
    #10
  12. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [May 22, 2008]
    afaik the eliminators are garrett GT series turbos which had turbine housings specifically designed to bolt directly to the standard manifold?
    #11
  13. docurley
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    docurley Moderator Staff Member Moderator

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    [May 22, 2008]
    well I did want to build a GT28RS setup but funds are not there. But the K04 looked like a good cheap option with the SP51 and buying a dead K04 was even more appealing. So with the conversion I now have a turbo that is specked out to the TT225 K04 turbo which when chipped produces about 280bhp. The manifold may come later but as reports have shown it moves the power band so it may be an option later.
    #12
  14. Biglockie
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    Biglockie Aye you know it makes sense

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    [May 23, 2008]
    Sounds good Dave
    #13
  15. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 23, 2008]
    #14
  16. Soupie69uk
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    Soupie69uk Owner

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    [May 23, 2008]
    Have you guys measured the inlet on these turbos?

    Here are measurements for comparison off Byzan's link above.

    K04-15 - 28.25mm
    K04-23 - 43.10mm
    #15
  17. Markey
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    Markey Active Member

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    [May 23, 2008]
    I always thought a K04-23 would not fit because they were different orentation, but looking at those pics they are the same so it could be fitter to the A4
    #16
  18. docurley
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    docurley Moderator Staff Member Moderator

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    [May 23, 2008]
    This what I had done

    #17
  19. docurley
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    docurley Moderator Staff Member Moderator

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    [May 23, 2008]
    Just checked and my measures 40mm spot on.
    #18
  20. Soupie69uk
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    Soupie69uk Owner

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    [May 23, 2008]
    Thats good then.
    #19
  21. Andy.B
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    Andy.B Member

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    [May 23, 2008]
    So these are K04-23's then?? or a Hybrid of a 15 and 23?

    Why haven't i herd of people using a k04-23 before? Seeing i'm reverting back to the standard k03 setup for a while, while i get my money back in order.. I'll be looking for a big upgrade like one of these turbos again prob before the year is out. :)
    #20
  22. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [May 23, 2008]
    I think its a hybrid of the two, as they need to machine the compressor housing and the exducer/manifold housing. I hope its like my SP1 was before i blew it up and boosts a bit lower than my current K04-15, it means it will work better again with my gearing i now have
    #21
  23. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Jun 6, 2008]
    Mine is here now also, so i thought i would update the pics to include the compressor turbine shape and the machining on the exducer side.
    [​IMG]

    [​IMG]
    [​IMG]
    For shits and giggles, comparison between a k03 and the SP1x
    [​IMG]
    [​IMG]
    #22

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