Quote:
Originally Posted by dholloway543
Im not sure why but more boost = more power even though the overall cp is the same. My guess is that its less of a fighting force as the piston comes up so less power is waited on the compression stroke. More power in boost less power out of boost.
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I've heard it said different ways, and all ways of saying it probably contribute:
--Increasing pressure increases heat a lot, and it is in a non-linear way, so higher compression can lead to knock, which limits boost potential or makes it necessary to reduce timing a lot.
--I have heard that high compression/low boost means there is less manifold pressure wanting to inject air into a cylinder that is a smaller space versus low compression/high boost where there is a lot of manifold pressure which pushes a lot of air into a bigger cylinder.