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EGR Port plugging

290 Views 3 Replies 2 Participants Last post by  LotusElise
Has anyone found a way to plug the hole in the actual Exhaust Port? I'm porting my Tsx head and noticed I have a EGR hole in the port, Would the flow gains be miniscule if it was plugged? Is it worth it? What about high temp copper Permatex? JB WELD? Ideas?
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I'm not talking about the external block off plates lol when you look inside number #4 exhaust port you'll see a hole "inside" the actual port that the exhaust gas flows across, since my head is dissembled while I was porting & reshaping the exhaust port I noticed the hole, I'm thinking about plugging it from inside the actual exhaust port to gain better flow characteristics, possibly more CFM.
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