Quote:
Originally Posted by KTL
Thanks for confirming my suspicion about the need for a special small end bushing. Makes sense to add a little bit of deck height to drop the comp ratio, but not too much that you lose your squish at the periphery. My wacky 3.2SS was probably way off on comp ratio (using 9.8 Mahle motorsport Carrera pistons) with a deck ht of ~0.095" (approx. 2.4mm) and the squish zone around the periphery was pretty fat.
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A .095" deck will result in a compression difference of about 1.4 points.
If you started with 10:1 @ .040" your new compression would be close to 8.6:1. yikes!