Quote:
Originally Posted by njn63
It's all about allowing the smoothest possible entry and the quickest possible transition to laminar flow as far as I know.
It's such a complicated science and there really is more than 1 way to skin a cat so to speak. I was reading not too long ago in one of the engine master's magazines about one of the top guys welding the ports up and making them smaller to increase velocity and fill the cylinder quicker (SBC).
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If you shorten the runners believe it or not you increase turbulance. way to prove it is grab a straw. Blow into it at normal length then cut the straw in half or more and then blow into it again the air escaping on the other end is more violent and you can hurry more air through it faster.