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Discussion in 'A4/S4 forum(B5 Chassis)' started by Drizz, Feb 18, 2010.

  1. Drizz
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    Drizz Project Plush

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    Right have decided to bite the bullet and do the turbo replacement properly, instead of looking for cheap options.....
    I have the 4 options from scroll:

    K03-SP51R $550
    K03-SP51X $650
    K04-SP51X $750
    K04-SP56R $900

    I have the address to send my old unit to, just need to decide what spec.
    What other mods need doing to accommodate the above upgrades?
    Ill be fitting a FMIC regardless, just dont know what else will need sorting prior to getting it running.
    Thanks in advance.
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  2. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator

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    I got myself a free flowing ex mani and made a better exhaust sytem to keep EGTs in check, i also have changed to a larger MAF body and larger injetcors. One all of that is in place, you will need to get yourself some kind of custom tune.

    I am hoping to go with Rtech, they seem to know thier shizz.

    I would love 56R but cannot justify it,lol
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  3. Drizz
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    Drizz Project Plush

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    What because of the 900 outlay?
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  4. jcb
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    jcb Active Member

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    its a pants website but $900 seems steep for 270bhp (if I am reading the spec right)
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  5. Drizz
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    Drizz Project Plush

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    Well its 550 for only 200bhp but whilst im there i thought i may as well do it properly....
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  6. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator

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    I am not sure his figures are acurate ! A std k04-15 can make around 240-250 bhp with a conservative tune. i recon a decent tune should see a tad under 300 with supporting mods
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  7. Drizz
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    Drizz Project Plush

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    So the K04-SP51X is a sensible choice? Im not going for full on power figures, just a swift comfortable car.
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  8. docurley
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    docurley Moderator Staff Member Moderator

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    Standard K04-15 tend only to make around 245bhp at best with an agressive tune and thats with TT MAF, 386 TT injectors, FMIC, bypass pipe, manifold and exhaust.

    Now take in to account Marks last car which only had and exhaust, manifold and a remap and he made 243bhp on his K04-SP51X so it gives you some idea what may be possible with these turbo's.
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  9. Drizz
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    Drizz Project Plush

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    What other mods would you suggest with the 51x?
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  10. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator

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    You'll basically need to do what marks done.

    VR6 MAF housing with your AEB sensor inside.
    C20LET Yellow Injectors
    3 Bar fuel regulator
    Better manifold
    Tasty exhaust.

    Then a custom map, although if you notice from marks thread, we got it all running on the standard map and recon it was making around 250-260hp at 1.1bar, albeit with the fuelling and ignition timing not quite spot on. Clearly more will be possible with a remap.
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  11. Drizz
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    Drizz Project Plush

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    Not too sad then. Ok well just sorting out the logistics and ill get it ordered :)
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