How can I calculate compression ratio? I'm pretty sure I'm around 10:1 now with the Windsor Jrs 58cc combustion chamber. The AFR 185s come 3 different ways:
185cc Street Head, Stud mount rockers, 58cc chambers;
185cc Street Head, Pedestal mount rockers, 60cc chambers;
185cc Street Heads, Stud mount rockers, 61cc chambers
I would either get the 60cc or the 61cc chamber version. Depending on where it will put my compression ratio. Another question is which rocker mounting style is better?
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03 DR 650SE
Sgarzi's Machine Works
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