Intake manifolds

[neptunonc at yahoo.com (Neptuno)]

The question I would ask is which TB was used for the testing? See, I ask that because if the A1 tb was used well then that explains some sort of differtiated gain on the stock A1 manifold, while "restricting" the flow on a fox intake that already would be factory "ported for the larger TB's.
   
  Am I crazy when I say this? correct me if I am wrong, So I guess the point on the post is more about the runners, Correct?
   
  EL T

Dan Bubb <jdbubb@verizon.net> wrote:
  Plus there's the extra added bonus that the old butt dyno is notoriously unreliable mostly cause it doesn't sense acceleration, it senses change in acceleration.
So, an engine with a flat smooth torque curve will feel slow and an engine that dramatically "comes on the cam" will feel really fast once it hits the increase in the torque curve.
Another thing is engine power vs. driver input. An example here is the bigger throttle body, or in particular a Weber single plate throttle body, vs. the stock TB. Because those TB's allow more air flow for a given pedal movement, they feel faster since the engine has a greater response for given operator input. In reality they only supply an HP or two even on an extensively modified engine.
Dan

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