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Thread: Engine Cooling Tin Modification

  1. #1
    Senior Member Gumby's Avatar
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    Engine Cooling Tin Modification

    Engine cooling tin modification..
    I found a thread on another site that said to trim 1 inch from the center air deflectors, stating that Porsche issued this modificationName:  porsche engine tin mod.JPG
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    So, good idea / bad idea?
    Ron




    1973.5 911T
    1974 BMW R90/6
    1986 Carrera, Plan "B"
    1987 BMW K100RS Motorsport
    2004 BMW X3 6 speed manual transmisson

  2. #2
    That is correct, we always do it when encountering old style deflectors.
    Early S Registry member #90
    R Gruppe member #138
    Fort Worth Tx.

  3. #3
    Senior Member Gumby's Avatar
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    Thanks Ed!
    Ron




    1973.5 911T
    1974 BMW R90/6
    1986 Carrera, Plan "B"
    1987 BMW K100RS Motorsport
    2004 BMW X3 6 speed manual transmisson

  4. #4
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    Is there a year you can add to this, end or early style?

    Thank You

  5. #5
    Not sure, never really bothered to document since it would be obvious, but tend to think it was done starting with 3.0.
    Early S Registry member #90
    R Gruppe member #138
    Fort Worth Tx.

  6. #6

    Cylinder Deflector Plates

    As Ed suggested, this mod began in the 78 model year.

    Name:  DSCN0023.jpg
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    Jon B.
    Vista, CA

  7. #7
    Senior Member Gumby's Avatar
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    Link to the website where I found this information
    https://www.pelicanparts.com/techart...in_cooling.htm
    Ron




    1973.5 911T
    1974 BMW R90/6
    1986 Carrera, Plan "B"
    1987 BMW K100RS Motorsport
    2004 BMW X3 6 speed manual transmisson

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