TwinTurbo.NET: Nissan 300ZX forum - There are surely gains from porting the manifolds
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Subject There are surely gains from porting the manifolds
     
Posted by Turbodog (CT) on February 05, 2005 at 8:30 AM
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In Reply To "heavily port your exhaust manifolds while you're at it" posted by College Boy on February 05, 2005 at 07:17 AM
     
Message Maybe on stock turbos, no, but with upgraded turbos YES. If you could compare side by side a set of stockers and a set of nicely ported stockers you would be surprised just how much restriction there is. I don't have any concrete evidence of it but many would agree there are gains and the time spent to do it is worth it. But I agree that Greg's manifolds are probably be far superior in performance over stock ported. Which again points to how restrictive the stockers are.


Last dyno:
478 whp
435 lbs-tq
On 94 octane @ 17psi

Best 1/4 mi:
12.59 & 120mph on old steet tires

Daily driver, 05 Titan KingCab Tow package, 2.5" lift kit.
Looking for used trailer to tow Z to the tracks and back.

     
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