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Compression?

This is a discussion on Compression? within the Internal Engine forums, part of the LSx Technical Help Section category; I Am Looking To Do A 383 Lunati Stroker For My Ls1 What Is The Deal With The Different Compresions ...

  1. #1
    LS1-TA schrysler's Avatar
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    Compression?

    I Am Looking To Do A 383 Lunati Stroker For My Ls1 What Is The Deal With The Different Compresions For The Rotating Assembly? I Always Thought That It Was The Cam And Heads That Determined The Compression
    1998 Trans Am Vert, M6, Soon to be full of goodies......

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    Slow'er'Ass Mr. Luos's Avatar
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    Cam helps determine dynamic compression. How much compression gets 'bleeded' off because of the overlap.
    Pistons and heads determine static compression. The cylinder compression without overlap.

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    LS1-TA schrysler's Avatar
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    If I Am Doing A Forged Bottom End Will The Compression Matter? I Am Going To Do A Sts Kit On Top Of It All, Would It Need To Be The Lower 8:5 Or Could I Get More Hp From Doing 10:1 Comp Ratio?

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    Slow'er'Ass Mr. Luos's Avatar
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    I think your caps lock button might be on.


    The STS system can't high really high boost numbers. 9:1-9.5:1 would be ideal I would think.
    Probably get better answers in the forced induction section.

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