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  1. Louie928

    Fuel Temperature

    The original question was in regard to the fuel picking up extra heat from the line passing in close proximity to the exhaust system. Usually fuel that isn't used by the engine is routed back to the fuel tank. After a lengthy drive, the fuel in the tank can get excessively warmed by the...
  2. Louie928

    Intake runner cover

    Marquis, Thanks for your informative reply. I also thought the space of runner diameter/2 might work, but had no experience in the matter to know for sure. One concern I had was that with a gap that tight the air would have to accelerate up to speed within the fairly short distance of the radius...
  3. Louie928

    Intake runner cover

    Rod, Thanks for your personal experience info. A friend did some computer flow analysis and came up with a 1.75 inch spacing as being good, and that correlates with your experience as well as some other's thoughts. The engine is a Porsche 928 32 valve, 6.5L. I am using 4 dual throat FI throttle...
  4. Louie928

    Intake runner cover

    Thanks Bryan, The filter element itself will have enough space between it and the runner entrance. What I can't find is the acceptable distance from the runner bellmouth to the lid, or cover, (sheet aluminum) that is above it. Fluid dynamics books I have don't address this issue and I can't find...
  5. Louie928

    Intake runner cover

    I'm designing an individual throttle body per cylinder intake system. I will need an air filter assembly with a closed top over the air horns. The question is how close to the bell mouth opening can I have the air filter top, i.e., the clearance space between the bell mouth opening and the...

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