Exhaust Back Pressure

Discussion in 'Challenger DIY/Tech Info' started by SRT-Tom, Nov 16, 2018.

  1. SRT-Tom

    SRT-Tom Full Access Member

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    Here is a great discussion of exhaust flow and why back pressure is not desirable.

     
  2. Diehard

    Diehard Full Access Member

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    So he's saying you don't want back pressure but then says basically that you need some, by reducing pipe sizes, to get optimum velocities for scavenging.
    So I think he's indicating, but not saying, you need just enough to aid the scavenging affect.
     
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