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Compression Calculator

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  • Compression Calculator


    Now has Dynamic Compression as well.

    I will later add in forced induction to the dynamic calculation but it's a little bit more complex than just NA Dynamic Compression.
    Attached Files
    Last edited by ShorTuning; 05-24-2011, 12:18 AM.
    James Short

  • #2
    :thumbsup2: Cool!


    • #3
      Bump Mod's could you put this in the top as a Sticky. I updated the calculator to have a very accurate Dynamic Compression calculation based on camshaft valve event's as well.

      Very useful tool!
      James Short


      • #4
        Is this a LS based calculator only?
        Sean Foster

        1.32 60ft
        6.30 1/8
        108 mph
        9.95 1/4
        133 mph
        Bluecat approved!
        383 AI 200cc/custom grind w/full bolton's. 4L80E w/edge 3600 stall, Moser 12 bolt w/4.10

        91' RS 7.88 8th 320rwhp 442rwtq

        "Wrong is wrong, even if everyone is doing it, and right is right even though no one else does it."


        • #5
          Just a note: "PI()" is the function for Pi in excel... instead of writing 3.141593 everywhere... looks really good though!
          Eric "the" Pyles

          White '08 BMW 335i

          Blue '85 Ford F-150


          • #6
            Yeah I will go back and edit the earlier functions with that. The newer dynamic compression functions has PI() instead of the actual number. That alone will make it a little more accurate too. I'll update it later in the day. Thanks for pointing that out cause I wrote the static compression side of it a couple years ago.

            This can be used on any motor. I just titled it LSx because that's what I deal with the most.

            I updated the forumula's.. so should be even more accurate now.
            James Short