User Tag List

+ Reply to Thread
Results 1 to 6 of 6

Thread: F 41 emulsion tube?

  1. #1
    Bodger mkarampi's Avatar

    Join Date
    Feb 2010
    Location
    Ioannina Greece
    Age
    44
    Posts
    94
    Thanks
    2
    Thanked 0 Times in 0 Posts

    F 41 emulsion tube?

    Hello. I have in my own F 41 emulsion tubes.. Anyone knows if them is rich or lean than the F16 tube is? Also the idle jet is 55 F21. Is rich or lean than 55 F11.

    some pics here





    The first (more black) is F 41 and the other is F16


    Regards

  2. #2
    Bodger mkarampi's Avatar

    Join Date
    Feb 2010
    Location
    Ioannina Greece
    Age
    44
    Posts
    94
    Thanks
    2
    Thanked 0 Times in 0 Posts

    Re: F 41 emulsion tube?

    Any answer?

  3. #3
    Pole Position Decade Plus User
    Turbosport Administrator
    Miniliteman's Avatar

    Join Date
    Feb 2004
    Location
    the Netherlands
    Posts
    4,888
    Thanks
    38
    Thanked 611 Times in 558 Posts

    Re: F 41 emulsion tube?

    F41 is leaner then F16 (look at those big holes).
    Measure airhole on 55F11 an 55F21; the one with the bigger airhole is leaner in higher rpm.

  4. #4
    Tyre Kicker

    Join Date
    Jan 2009
    Location
    surrey
    Posts
    7
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Rolleyes Re: F 41 emulsion tube?

    So what are those carbs off ?
    An alfa romeo ?

  5. #5
    Spanner Monkey

    Join Date
    Mar 2010
    Location
    Holland
    Age
    32
    Posts
    252
    Thanks
    32
    Thanked 11 Times in 11 Posts

    Re: F 41 emulsion tube?

    i have done many runs on the dyno with my 205 1.3 rallye original on twin DCOEs.
    Found out that the emulsion tubes do not really give a load more of fuel on the total RPM range.
    But it gives a more consistent mixture of air and fuel, so the in the lambda graphic (on proper dyno with pc) the line has got less vertical movements.

  6. #6
    Pit Crew Craigorypeck's Avatar

    Join Date
    Nov 2009
    Location
    Edmonton Canada
    Age
    44
    Posts
    949
    Thanks
    96
    Thanked 23 Times in 23 Posts

    Re: F 41 emulsion tube?

    This is a guess but they may be from a weber dcom carb..?
    Webers attempt to copy the years of extensive research done by dellorto in their emission spec carbs, basically a lot more and bigger air holes that atomise the fuel to a bigger degree giving it a better burn quality... Known as swiss cheese tubes.

+ Reply to Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts