Difference between Carbs | FerrariChat
Buy

Difference between Carbs

Discussion in '308/328' started by micha1980, Aug 10, 2014.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. micha1980

    micha1980 Karting

    Feb 20, 2006
    93
    netherlands
    Full Name:
    micha
    #1 micha1980, Aug 10, 2014
    Can anybody explain to me what exactly the difference is between an Euro Weber Carb and a US Weber Carb? I have heard that there is something different but nobody can tell me what is different. Thnx
     
  2. Sledge4.2

    Sledge4.2 F1 Rookie

    Oct 19, 2007
    4,786
    Marin
    Full Name:
    Geno
    #2 Sledge4.2, Aug 10, 2014
    Other than different taper to the idle mix screws I am not sure...
     
  3. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    BANNED Lifetime Rossa

    Jan 11, 2001
    26,822
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #3 Steve Magnusson, Aug 10, 2014
    Last edited by a moderator: Sep 7, 2017
    Your question is far too vague. If you mean "what is the difference between Euro 308 Weber 5-bolt 40DCNF carbs and US 308 Weber 5-bolt 40DCNF carbs", this chart from the Haynes Weber book shows the variations in the emulsion tube/jets, but we also know that the progression hole pattern has also varied (try a search on "progression holes" - IIRC, there are prior threads with photos):
    Image Unavailable, Please Login
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
  4. Ferraripilot

    Ferraripilot F1 World Champ
    Owner Project Master

    May 10, 2006
    17,850
    Atlanta
    Full Name:
    John!
    #4 Ferraripilot, Aug 10, 2014
    Progression hole pattern is the main difference. Everything else is pretty much the same other than jetting which isn't all that different. That being said, with modern fuel being what it is, original jetting is inadequate anyway.
     

Share This Page