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Dynamic compression
Pull static CR from the compression tool and intake closing from the cam tool.
Shared build memory
Static CR + rod + stroke + intake closing. Not gearing.
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8.68 : 1 dynamic
Static 10.50:1 · piston from TDC at IVC ≈ 2.813 in
Stout street/strip — good fuel and timing discipline.
Slider-crank DCR model — same method used in common engine spreadsheets. Cam cards, lash, and rocker ratio change actual IVC. Not a knock guarantee.