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Weber 42 DCOE 6/8/12

Discussion in 'Maserati' started by 3500 GT, Dec 2, 2012.

  1. 3500 GT

    3500 GT Formula 3

    Nov 2, 2008
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    Gentleman Racer
    I'm wondering if any Weber experts could tell me what the differences are between the Weber 42 DCOE 6, the 42 DCOE 8, and the 42 DCOE 12. I know the last digit is the series number, but what are the differences?

    One gent. informed me that 42 DCOE 12 were for racing/hi-po only. True?


    Ciao and best


    ~Trev
     
  2. staatsof

    staatsof Five Time F1 World Champ
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    Mar 13, 2005
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    Fuggetaboutitland
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    Bob
  3. 3500 GT

    3500 GT Formula 3

    Nov 2, 2008
    1,085
    USA
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    Gentleman Racer
  4. sowest

    sowest Formula Junior

    Aug 18, 2006
    899
    I am not CERTAIN about this, but it is my understanding is that the varying numbers after the carburettor type denote the jetting for a specific application. That is a DCOE for one type of car would have different jets and a different number than a DCOE for another type of car. One could conclude that the carburettor type could be changed by changing the jets, venturis, etc. The only fly in this ointment is that the progression holes that are drilled into the body may also be different. This would be very difficult to change.

     
  5. Ruud Bax

    Ruud Bax Rookie

    Mar 18, 2007
    37
    Trev,

    A great article about the DCOE...

    http://www.tr3a.info/WeberDCOEinfo.htm

    Maserati used DCOE 3, 6 and 8 on the 3500.
    The number has to do with the configuration. Jetting, choke size, float level and also the number and size of progression holes may vary.

    Ruud
     
  6. 19633500GT

    19633500GT F1 Rookie
    Rossa Subscribed

    Nov 9, 2010
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    Ken S
    Are 8's worth anything? I have a set I may sell.

    I was also trying to find Tipo 36 DO2 information, I believe for A6G's, but have come up with nothing
     

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