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yeah, the JE pistons i got are 2mm oversize, = 265cc, which is like a 16cc increase. not too significant, but what will also add to the power improvement will be the increased compression ratio, which is rated @ 12.5:1 with these pistons.
there are still more improvements that you can make with the engine, such as ceramic ballbearings, new crank or something i think~ plus the option to lob in a pair of CR31 carbs from SUDCO for example. which would end up being another grand worth of parts if not more... but ill leave those mods alone for now lol, spending more than i should as it is. rofl
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Kawasaki Z250, Bored up to 300cc with 12.8 CR, 41hp at wheel 27nm torque, Two bros full exhaust with DB killer
Dynojet Power Commander V, KnN Open filter, intake and exhaust ported, Puig Windshield
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