>> Regarding efficiency, the standard Otto cycle efficiency is limited by >> the compression ratio and the ratio of the specific heats of the gas >> being compressed. > Theoretically, but it is necessary to get the maximum amount of the > correct fuel/air ratio into and exhaust out of the combustion chamber. > This is where gas dynamics enters. We all know how much on a standard > engine, the intake and exhaust manifold design effects the power output. > It appears this would be a design issue to getting good power out of the > engine. =A0:) Note that it's "supercharged" of necessity. Works for my MR2 :-). Russell --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .