Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - max compression ratio on 89 octane
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Old 06-23-2005, 07:49 AM
454C10 454C10 is offline
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With 216 degrees duration and 110 lobe centers I would go for 9.25:1 to 9.5:1 cr with 91 octane and 9.0:1 to 9.25:1 cr with 89 octane.
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