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Clear Manifolds - Clear Heads
Stan,
That would be the way to go but it is not quite as easy as it might seem. Polishing a machined port made of plastic is quite a long job. However it becomes much more easy as the form is simplified. This is what we did with an Aston Martin deal when I was doing a spell back in the 90's consulting for one of their satalite companies responsible for much of the development on vintage race engines. The wet flow testing and the consequent changes in the manifold plus the combustion chamber was worth just over 25 hp on a straight six.
As for the valve area discrepance you mentioned I was refering to available area - that's the curtain area as the valve lifts.
DV
Last edited by DavidVizard-GFN; 10-03-2007 at 05:54 AM.
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