Quote:
Originally Posted by JayRash
My money is on the longer intake port, thou if ur planning to boost the engine the short port will work better since it wont reach sonic speed as quickly.
I mean to say on an NA the long port to the valves will help accelerate the intake charge helping both mid range and top end. the shorter wider port will flow at lower speeds, thou it might acctually work better at real high RPMs. this lower speed is a plus in boosted engines, but we r considering that you will be reaching either head's flow limits.
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I'm not quite sure that's my point. The longer point will provide more uniform flow without the intake, but basically what I'm saying is the newer port seems to be something akin to taking about an inch or two off the origional intake and casting it into the head. I want to know how these heads perform with some runners bolted up, as that's how they're going to run. Flowbenching a head with now intake on it is mostly pointless, IMO as no gas burner I know can just run with open ports into the environment!