Porting Cast Iron Exhaust Manifolds
07-02-2013, 12:11 AM
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Porting Cast Iron Exhaust Manifolds Just curious if you decided to port your cast iron LS manifolds, why and did you do it yourself or have someone do it for you? Did you remove a lot of material, or just a polish? Any proven gains?
For the record, I did not port mine. Didn't see any need in it. But willing to listen to your advice and your experience!
For the record, I did not port mine. Didn't see any need in it. But willing to listen to your advice and your experience!
07-02-2013, 09:18 AM
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Just curious if you decided to port your cast iron LS manifolds, why and did you do it yourself or have someone do it for you? Did you remove a lot of material, or just a polish? Any proven gains?
For the record, I did not port mine. Didn't see any need in it. But willing to listen to your advice and your experience!
For the record, I did not port mine. Didn't see any need in it. But willing to listen to your advice and your experience!
07-02-2013, 05:15 PM
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Nice one! Kinda why I never bothered to do mine. Figured what was the point? Thanks, hairynuts32?.......
07-03-2013, 12:19 AM
#4
I remember back in like 2000, a company called LS1Motorsports would build turbo kits and port the manifolds. I'm not sure how much material they took off. The main thing when porting something is not to necessarily make it bigger, but to smooth it out. Remove imperfections in the castings that'll effect flow, bottle necks, etc.
