Hollowmen asked so lets figure this one out:
INCREASING COMPRESSION
borexstroke = 72x62.1
so displacement = 252.8cc
divide by 8.9 = combustion chamber volume = 2.8cc
we want 10:1 so ideal combustion chamber volume = 2.5cc
difference of 0.3cc is taken out of barrel so as to not change combution chamber shape.
So i ended up with 0.767mm shave to achieve 10:1, because of increased compression 96 would be used, flame propagation would be faster so therefore more controlled
Because of the head being lower the slack would have to be taken out of the cam chain as well.
ADVANCE IGNITION
simple as making the woodruff key thinner and rotate the flywheel, would need to be done on dyno.
EXHAUST
Ditch it from the footpegs back for some straight pipes. Probably lose power but the diapproving looks from old ladies makes it worth it.
CAMS
throw a few $$ at a cam grinder and see what he comes up with, I'm thinking you want stage3+ and you'll need to replace the valve springs at the same time with something a bit more heavy duty.
CARBS
Will need some serious work with these mods, specialist work with that high tech system.
TURBO/NOS?
You know you want it.
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