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Pdxguy

Kugelfischer
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Posts posted by Pdxguy

  1. 12 minutes ago, TobyB said:

    PSI is the problem.

     

    The Weber uses a relatively large needle in the float valve, and 

    any pressure against it will cause it to overfuel.  But only at low volumes.

     

    So you'll get high float levels at idle when you don't want that,

    and low float levels at full load, when you don't want that.

     

    I have yet to find an electric pump that DOESN'T overfuel a Weber.

     

    I use a Mallory bypass- style regulator, which is slight overkill, but I

    just NEVER have trouble with it, so why break that?

     

    t

    2 psi is plenty.  1 psi is enough.  As long as the flow is there!

     

    What size return line do you use? Bigger than the feeder line or same size?

     

    Thanks,

    Dennis

  2. 15 minutes ago, David Layton said:

    When I re-assemble my 73, I will be doing this with a Behr console and evaporator, everything in front of the firewall is new:  Sanden Compressor on a Hobie, dryer, and parallel condenser MIT Spahl fan. 

    Sprechen Sie Deutsch Herr Layton? (I don't, but mit is one of about 12 german words I learned when I lived there)

  3. Based on multiple threads here the Carter P4070 electric fuel pump is being used successfully by lots of folks with dual Weber 40s. Question about the pressure. Looks like ideal pressure is 3-3.5psi for the Weber 40 dual carb set up. If I am understanding things correctly, the Carter 4070 produces 4-8 psi; above the recommended pressure. Am I mistaken?

    Found this Carter marine unit, specified as 4psi, rather than the 4-8psi. Would this be a better choice? Any downsides to a marine unit vs auto specific?

    https://www.summitracing.com/parts/crt-p4389

     

    I plan on using a pressure regulator which decreases the pressure, meaning the flow velocity increases, ie higher volume per unit time. Not completely understanding carb needle/jet functioning, is the PSI (pressure) or GPH (flow velocity/volume) the problem when too high?

     

    Last question, is the recommended psi based on what is delivered at a certain RPM, or from idle to full throttle?

     

    I see a carburetor for idiots book in my future. 

     

    Thanks,

    Dennis

  4. On 10/31/2016 at 10:20 AM, eurotrash said:

    Here is a system I am working on for a customer.  Becker head unit, with BT/wired input capability, injected into the antenna input on the head unit,  and 4.1 speaker kit..

    I am building the wiring from scratch and delivering it as a plug and play system. 

    4.1withVintageHeadUnit.jpg

    Eurotrash,

    Do you still do setups?

     

    Thanks,

    Dennis

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