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Can anyone share any experience relative to fuel consumption of a 10:1 motor versus 12.5 ? I am trying to understand if lowering the comp ratio will automatically result in worst fuel economy because of an inherent less efficient engine, or if careful tuning of the turbo on a built 10:1 engine can actually allow to maintain equivalent fuel economy (at equal performance) to a stock 12.5:1 by having boost coming on sooner and reach the same overall effectiveness (once spooled).
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