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Author Topic: Exhaust port matching  (Read 2432 times)

June 22, 2006, 07:48:38 am

zooky

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Exhaust port matching
« on: June 22, 2006, 07:48:38 am »
just finished matching the intake ports, it was easy, not much materal to remove. The exhaust ports have more materal, almost 1/8 all around. That seems excessive, I dont want to cut too deep. Is there enough material there or should I just maybe do half. Polish or no polish, I searched and found conflicting results...
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Reply #1June 22, 2006, 08:21:46 am

Dr. Diesel

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Exhaust port matching
« Reply #1 on: June 22, 2006, 08:21:46 am »
there's theory that having a step up in size from ex. port to manifold helps out. Anti-reversion or something like that. Might be worth looking into just leaving it that way.
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Reply #2June 22, 2006, 08:31:29 am

zooky

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Exhaust port matching
« Reply #2 on: June 22, 2006, 08:31:29 am »
that makes sense, I'll probally match the manifold and do half on the head.
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