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Thread: Engine Sleeves 2.0l Ecotec

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    Engine Sleeves 2.0l Ecotec

    I have a Saab LK9/B207R engine that will be tuned very shortly.

    I was wondering about the sleeves of this engine. How much can they take. My goal is at least 400 hp on normal pump gas and more on E85.

    Are the sleeves the same on all 2.l ECOTECS? I have not been able to find any information about this anywhere.

    Thanks.

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    And another few questions.. What brakes sleeves in cars and why do you need to change them?

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    You'll be fine to 400. I wouldn't go much past 450 whp for longevity reasons. I would assume sheer cylinder pressure breaks sleeves, knock, or lean conditions, and changing them to darton or whomever who makes forged sleeves will make them much stronger.

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