Thread: Combustiom chamber vs compression ratio
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Old 10-08-2003, 04:51 PM
CStraub CStraub is offline
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It has been well explained here to mill the heads. To answer the power difference. At 10 to 1 compression, for every point of compression gained, you increase power by 7% of the CID of the engine. IE 306 at 11 to 1 =21HP gain. Now a 11 to 1 aluminum headed engine is equal to a 10 to 1 iron headed engine due to the thermal ineffeciny of aluminum.

CStraub
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