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Technical Stromberg Carbs

Discussion in 'Traditional Hot Rods' started by fyrffytr1, Sep 23, 2022.

  1. fyrffytr1
    Joined: Dec 20, 2016
    Posts: 433

    fyrffytr1
    Member

    What do You all think about the reproduction Stromberg carburetors? I would like to put two on an Edmund's aluminum intake for my 50 Pontiac.
    If they are not worth it what other three bolt base carb would work?
     
  2. carbking
    Joined: Dec 20, 2008
    Posts: 3,387

    carbking
    Member

    Carter made some type WD-0 carbs with a three bolt flange.

    Pre-war Pontiacs used the WD-0, but the Pontiac version was a four bolt flange.

    These would be my choice.

    Jon
     
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  3. hrm2k
    Joined: Oct 2, 2007
    Posts: 4,122

    hrm2k
    ALLIANCE MEMBER

    Real Stromberg = yes
    Fake Stromberg= no
     
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  4. banjorear
    Joined: Jul 30, 2004
    Posts: 4,163

    banjorear
    Member

    The English made ones are great. I know nothing about a 50's Pontiac motor, but if it's more than 300 ci, you may want to the consider the Big 97's. The are 250 cfm vs. 150 of a regular 97.

    Another option is to find cores and have Uncle Max redo them for you. They will be as good as new English Strombergs
     
    Last edited: Sep 24, 2022
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  5. carbking
    Joined: Dec 20, 2008
    Posts: 3,387

    carbking
    Member

    The Pontiac 8 was 268 CID.

    Red line on the 1954 engine was 3800 RPM.

    The performance benefit of dual carbs is going to be better average cylinder fill density. Since red line is low, and with the crank used, not going to be higher; larger carbs would simply slow the venturi air velocity and hurt the lower RPM performance, rather than helping.

    Jon
     
  6. carbking
    Joined: Dec 20, 2008
    Posts: 3,387

    carbking
    Member

    With no offense meant to anyone!

    Stromberg never published a flow value for the EE-1 Ford (a.k.a. 97), so any flow value is not a factory rating. I am not disputing either rating since there is no factory rating; but both cannot be correct!

    Stomberg found that 1 1/16 inch was the MAXIMUM venturi size that could be used on the S.A.E. size 1 frame without issues. This was true whether we are talking EE-1 for Ford or the larger venturi size for Buick; or the 4 bolt EE-16 for Packard. If more than 1 1/32 venturi was needed, Stromberg went to a S.A.E. size 2 frame.

    The "97" has 31/32 venturi.

    The 1 1/32 venturi has 13 percent more area than the 31/32 venturi.

    So IF the normal "97" flows 150 CFM, then the maximum on the S.A.E. size 1 frame would be 150 plus 13 percent, or 169.5 CFM.

    Jon
     
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  7. 40Vert
    Joined: Jun 10, 2006
    Posts: 654

    40Vert
    Member

    My .02. The English Stombergs (stromberg-97.com) are spectacular. I have a total of four for my flatheads, two of the big-97’s on my Scot blower, and 2 of the regular 97’s on my Eddie Meyer. Super pleased with the quality and Clyde’s customer service is second to none.
     
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  8. klawockvet
    Joined: May 1, 2012
    Posts: 485

    klawockvet
    ALLIANCE MEMBER

    I have two of the English 97's on the avitar and they have been trouble free for several years and many miles.
     
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  9. WiredSpider
    Joined: Dec 29, 2012
    Posts: 1,032

    WiredSpider
    Member

    Clives english Strombergs GOOD
    speedway motors 97,s SHIT
     
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  10. caprockfabshop
    Joined: Dec 5, 2019
    Posts: 83

    caprockfabshop
    ALLIANCE MEMBER

    Glad to be hearing these opinions, was deciding if I wanted to run 9Super7s or pay up for the genuine article. Sounds like it's Stromberg all the way.

    ~Peter
     
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  11. panheadguy
    Joined: Jan 8, 2005
    Posts: 1,061

    panheadguy
    Member
    from S.E. WI

    Personally....I like the Holley 94's
     
  12. panheadguy
    Joined: Jan 8, 2005
    Posts: 1,061

    panheadguy
    Member
    from S.E. WI

    And S.U.'s
     
  13. HOTRODNORSKIE
    Joined: Nov 29, 2011
    Posts: 195

    HOTRODNORSKIE
    ALLIANCE MEMBER

    Have 4 of the English on my olds 303 well built for sure but you will need to open up the wallet and worth every penny .
     
  14. cretin
    Joined: Oct 10, 2006
    Posts: 3,028

    cretin
    Member

    The English reproductions are good. Never used the speedway ones, but haven't heard good things.

    While the English versions are good, in our experience, the floats are set too high out of the box and overflow. Hasn't happened every time, but enough times to mention it.
     
  15. Get some original Stromberg 97 carburetors and send them to Max Musgrove ( Uncle Max ), e-mail, madmax1946@comcast.net. Max is probably the best Stromberg re-builder in the USA.
     
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  16. Dreddybear
    Joined: Mar 31, 2007
    Posts: 6,042

    Dreddybear
    Member

    I like Holley 94s too. Theyre great and relatively cheap. But they leak. Always. From somewhere.

    Original nicely redone Strombergs are great too. Even better than the 94s I will finally admit (and I spent years evangelizing 94s on here).

    All that being said. The reproduction licensed Strombergs being produced by Clive in England are perfect. They're disgustingly good. Like, holy shit good. After dicking with 94s for years and trying to fine tune 4 original nicely rebuilt originals, I bit the bullet and bought 4 reproductions.

    I bolted them on and zeroed the linkage and had them singing at a sweet balanced idle in 15 MINUTES. Havent touched them since. Straight linkage, 4x2, NO gap or surge in the power band. Way better throttle response than the 94s. It woke up my motor.
     

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