svtkid78 Posted February 9, 2004 Report Posted February 9, 2004 what is a good bore and piston size on stock cylinders to gain some top end but not lose any off the bottom. Quote
frocashmoney24 Posted February 9, 2004 Report Posted February 9, 2004 dont bore more then you have to, it would just be like cutting down the engine life, you dont get much power from boring, just a fresh top end, so abore to .10 and get some new pistons Quote
sredish Posted February 10, 2004 Report Posted February 10, 2004 what is a good bore and piston size on stock cylinders to gain some top end but not lose any off the bottom. opening the bore won't necessarily cause you to lose or gain bottom or top. It won't be any different than it is now, other than maybe making more power overall. It depends on the setup. If you go to a much bigger bore, you'll just have to give it that much more air, and fuel. But, back to the question, the bore size it not directly related to the top or bottom in particular. The way the machine is built will dictate how the machine will run, this is especially true on 2 stroke motors. Quote
spoin39 Posted February 13, 2004 Report Posted February 13, 2004 I agree with sredish, to get more power out of it you have to move more air in/out of the engine. Airfilters, reeds, porting will help get air in and pipes, porting help get it out better. Boring will not get noticeable power gains. Quote
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