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Thread: multiple tbi pressure regulation

  1. #1
    Electronic Ignition!
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    multiple tbi pressure regulation

    Hi, I have a three carb manifold to which I have adapted three GM tbi bodies. What is the best way to regulate pressure? Just attempt to adjust all three for about the same pressure, or install a separate pressure regulator in the return to tank line?
    Thanks
    Abe

  2. #2
    Fuel Injected!
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    Quote Originally Posted by trades707 View Post
    Hi, I have a three carb manifold to which I have adapted three GM tbi bodies. What is the best way to regulate pressure? Just attempt to adjust all three for about the same pressure, or install a separate pressure regulator in the return to tank line?
    Thanks
    Abe
    When I setup a dual TBI I made block off plates and used an Aeromotive regulator on the return side. I plumbed them in parallel.

  3. #3
    Fuel Injected!
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  4. #4
    Administrator
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    I believe Fast355 has the winner.

  5. #5
    Fuel Injected!
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    I would expect that the pressure regulator with the lowest pressure setting would dominate and control the fuel pressure of all 3 TBI units if your simply paralleled the inlet and outlet lines from all 3 TBI's.

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