Thread: EJ207 Owners?
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Old 09-12-2006, 08:17 PM   #31
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Join Date: Jul 2001
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US STI heads are around 57cc combustion chambers, EJ205's are around 52cc, V7 and V8's are a tiny 48-49.... You really need to lower the compression with pistons or with Gaskets at least. If not you will be limited on the boost you can run. This makes a huge difference on a GT35R that does not want to be at 14 psi...

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