09-21-2003, 06:06 PM
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CC Member
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Join Date: Jun 2003
Location: CA,
Posts: 37
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Not Ranked
Combustiom chamber vs compression ratio
Let's say I want 10.0:1 compression. Now let's say my engine builder says "this engine has 9.5:1 compression with a 65cc head" Is better in any way or more efficient to add heads with a 58cc chamber to raise compression or to have the engine built to have a true 10.0:1 with the 65cc head?
I guess what I'm really asking is what are the performance differences/charasteristics (other than the apparent effect on compression) between different size heads with all other things being equal?
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