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Hot Rods Model A Rake and Mechanical Brakes, etc.. Build thread?

Discussion in 'The Hokey Ass Message Board' started by tricyclerob, Sep 16, 2025.

  1. Lättähattu
    Joined: Oct 29, 2009
    Posts: 132

    Lättähattu
    Member
    from Finland

    I did have fuel feed problem even with the original up draft carb. When i drove little longer, expecially when it was hot day, it starwed. First thought it was dirt in the pipe problem, so open up the pipe and blowed into it and gas flow fine (still hate the taste of fuel...). But then find out, that only opening the pipe and wait couple of seconds will fix the problem. So i guess it was gas vapor lock problem. Added electric fule pump and haven't had problem ever since, even when swapped to down draft carb. Highly recommended adding the fuel pump.
     
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  2. Lättähattu
    Joined: Oct 29, 2009
    Posts: 132

    Lättähattu
    Member
    from Finland

    But remember add also pressure regulator. Those old carbs can only hadle pressure around 2-2.5psi
     
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  3. tricyclerob
    Joined: Oct 1, 2011
    Posts: 40

    tricyclerob
    Member
    from Fork, Md


    I kept looking at them and they looked low but never saw a shot where I could really tell how low they were. I think I was looking at them on eBay. Your link has better shots where you can really tell how low they are.
    I had a laser level out checking out the on/off at the bottom of the tank and the outlet of the glass bowl filter. It really wouldn't take a lot to get a 97 low enough for total gravity feed and that one just might make it;. Maybe a velocity stack would make up for loss of intake velocity. I mean Henry never had air filters... But what did he know, right?
    I really think that would work. Plus it might just pick up enough warmth from the exhaust that it wouldn't care if it wasn't attached to the exhaust manifold like Henry designed.

    Robj
    rj
     
    Last edited: Oct 17, 2025 at 3:31 AM
  4. jet996
    Joined: Jul 10, 2024
    Posts: 114

    jet996
    Member
    from WY

    The Gear Drive intake is similar in height to my old Vulcan. That style will work if you enlarge the internal passages in the sediment bowl. They're really small. Put 3/8" fittings and line and only one 90 at the carb (I changed the 90°on my sediment bowl to a straight fitting after this picture). I've put thousands of miles on this setup and run it down to below 1/4 without issues. It Won't! work with any of the manifolds with a riser like Ansen etc.. BTDT IMG_9157.jpeg
     
    Okie Pete, Deutscher and tricyclerob like this.
  5. jet996
    Joined: Jul 10, 2024
    Posts: 114

    jet996
    Member
    from WY

    Forgot- 060 over, Stipe RR340 cam, Snyders 6-1 head, reds 4x2 header. Great reliable runner!
     
    Deutscher and tricyclerob like this.

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