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K03s turbo?

Discussion in 'A3/S3 Forum (8L Chassis)' started by james0808, Oct 22, 2008.

  1. james0808
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    james0808 Active Member

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    [Oct 22, 2008]
    My mate has been offered a turbo for his AGU A3,he has been told its a K03s but wants to make sure its the right part before buying it.
    Does anyone know the part number for the right K03s for his car?
    #1
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  3. abdus
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    abdus Top Gear VCDS Map User

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    [Oct 22, 2008]
    I think the part no has 0052 or 0053 in it
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  4. HTC
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    HTC Active Member

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    [Oct 22, 2008]
    K03s has 8 blades on the compressor, k03 has 12.

    [​IMG]

    Can't rememeber the part numbers, but look on the blue plate on the compressor housing. If it says 052 onwards then it's a k03s. If it says something like 011, then it is not.

    I'm sure someone will add the proper numbers later.
    #3
  5. HTC
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    HTC Active Member

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    [Oct 22, 2008]
    Beat me to it. :)

    What abdus said.
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  6. james0808
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    james0808 Active Member

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    [Oct 22, 2008]
    Thanks guys.Will let him know.
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  7. Prawn
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    Prawn My other car is a MINI!!!!

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    [Oct 22, 2008]
    Good upgrade too! 290lbft at 24psi = lots of smiles!
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  8. james0808
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    james0808 Active Member

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    [Oct 22, 2008]
    He will be very happy with that.
    Where is a good place to get his remapped to suit the new turbo?He is putting a fmic on it too.
    #7
  9. mattm
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    mattm goldmember.

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    [Oct 22, 2008]
    jesus tonight. the k03 is so small it makes me sad :( i neeeeeeeed IHI or similar
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  10. Gavtek
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    Gavtek New Member

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    [Oct 23, 2008]
    Is the K03s a straight swap or do you need to upgrade other components too?
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  11. ANDYTQ
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    ANDYTQ Active Member

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    [Oct 23, 2008]
    Its a straight swap,apart from changing the turbo intake pipe as the ko3s has a slightly larger diameter,a forge one is the better option,as the oem alloy one is not the best for flow.A ko3s will give you more top end instead of running out of puff at 5000 rpm,other mods and mapping will maximise the ko3s , but a useful upgrade anyway.
    #10
  12. Prawn
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    Prawn My other car is a MINI!!!!

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    [Oct 23, 2008]
    The turbo itself is a direct straight swap, it uses the original manifold and downpipe, and all the same oil and water lines too.

    However, you would need your map altered to suit the larger turbo, otherwise you would risk running lean.

    Most people will add at least a decent turbo back exhaust, and a front mounted intercooler is needed to get the best from the setup. Anything else is up to you really!

    I ended up doing LOADS more than I planned, Forge silicon hoses, DV relocation, G60 flywheel and VR6 clutch to cope with the torque, smoothed airbox.

    Then of course, you need the suspension and brakes to cope with the extra power!
    #11
  13. abdus
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    abdus Top Gear VCDS Map User

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  14. Gavtek
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    Gavtek New Member

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    [Oct 23, 2008]
    Excellent, thanks!
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  15. abdus
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    abdus Top Gear VCDS Map User

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    [Oct 23, 2008]
    just found the list I bought (i think HTC posted it somewhere) when I did mine

    -Turbo to downpipe stud - N 907 678 01 x4
    -Downpipe nut - N 102 090 05 x4
    -Turbo to downpipe gasket - 1J0 253 115 A x1
    -Manifold to turbo gasket - 06A 253 039 E x1
    -Manifold to turbo bolts - 058 145 540 x3
    (hot bolt paste G 052 112 A3) x1
    -Manifold to cylinder head gasket - 058 253 039 G x1
    -Manifold nuts - N 902 002 01 x13
    -Turbo to oil return pipe gasket - 058 145 757 B x1
    -Oil return pipe to sump gasket - 058 145 757 A x1
    -Coolant pipe sealing washer - N 013 814 9 x7
    -Oil feed pipe sealing washer - N013 812 8 x5
    -Drive shaft outer nut - N 905 876 02 x1

    -Oil filter, 5l oil
    -Oil sump plug and washer
    -G12+ coolant.
    #14

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