| | | quote | Originally posted by E.Furgal:
lol.. why.. if I have a set up that makes 9psi and change to ported heads that flow better, and now the same set up is at 7.5psi.. but making more power.. well......................... |
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You're implicitly talking about a twin screw supercharger in this context. Constant blower drive ratio means constant airflow between the two systems. The improvement in power comes from a reduction in waste heat from the blower, reduction in blower drive power (meaning power that formerly drove the blower is now available at the flywheel) and concurrent lower intake temps and denser intake charge.
If the engine has a wastegated turbo regulated at 9 psi and you install ported heads, the engine will still have 9 psi of boost, but will make more power.
Boost=Positive Manifold Pressure... period..
[This message has been edited by Will (edited 04-25-2012).]
