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whats the difference?

Discussion in 'A4/S4 forum(B5 Chassis)' started by johnyj, Feb 3, 2008.

  1. johnyj

    johnyj Member

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    have just noticed (yeah i know) that the s3 is a 18t what is the difference between that and the 18t a4
    is it turbo ecu or something else?
     
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  3. jcb

    jcb Active Member
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    about 45 bhp in quattro form
     
  4. aragorn

    aragorn "Stick a V8 in it!"
    Staff Member Moderator VCDS Map User

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    the turbo is the KKK04 as fitted to the TT225 and the ECU map is different to suit. The injectors will also likely be larger than the A4 engines.
     
  5. Markey

    Markey Active Member

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    Not 100% correct above, depending on year etc.

    The TT and S3 use the K03s turbos and have very different maps with steel pistons and i think the crank as well.
     

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