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Fuel Pressure Regulator Drilling

Discussion in 'Engine Building' started by c17r15, Aug 29, 2004.

  1. c17r15

    c17r15 Junior Member

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    Oct 30, 2002
    http://www.theoldone.com/articles/regulator/

    i have a walboro 255 fuel pump. Without the installation of a fuel pressure regulator will cause my engine to run excessively rich due to the increase of fuel pressure across the board. now i have a B&M FPR and i'd like to do the drilling trick.

    has anyone done this? i don't have a .035" drill bit but a 1/16" (.0625") bit. i'd think that the bigger the relieve hole the bigger the adjustability?

    please let me know.
    thanks
    chris
     
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