Manifold porting methods
09-18-06, 12:51 PM
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Manifold porting methods
Where can I send my lower intake manifold to get ported (gasket matched?)to match the motor. What kind of bit would I neeed to do it myself?
09-18-06, 12:53 PM
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Don't know where you can send it besides a hot rod shop or performance shop. There's nothing really hard about gasket matching the manifolds...
You can easily do it with a Dremel tool and a number of rotary bits. I prefer rotary files as they love to eat aluminium. Then finish off with a sanding disk to get a smooth transition.
You can easily do it with a Dremel tool and a number of rotary bits. I prefer rotary files as they love to eat aluminium. Then finish off with a sanding disk to get a smooth transition.
09-18-06, 02:35 PM
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Before I do this, is it worth doing? What kind of gains should I expect? Doesnt bigger ports mean less low end? Anyone done this on a S5 na? any info is appreciated
09-18-06, 08:15 PM
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You might get differing opinions on this, mine is that you should keep from making the port sizes much larger than they are now, you can lose a certain amount of velocity from making the ports larger. You can have noticeable improvement by smoothing out casting flash (ridges) and gasket-matching the port openings.
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