satts Posted June 30, 2013 Report Posted June 30, 2013 Hi all what size bore makes 420cc ,without strocker crank? Quote
BANSHEE HP Posted June 30, 2013 Report Posted June 30, 2013 70mm piston makes 416cc 70.5 makes 422cc Quote
BANSHEE HP Posted June 30, 2013 Report Posted June 30, 2013 what cc do i have bored .20 over with a 4mil stroker crank and 115mm long rods? 379cc Quote
vulvafan537240 Posted June 30, 2013 Report Posted June 30, 2013 Port work will give you more power than a few more cc's Quote
vulvafan537240 Posted July 1, 2013 Report Posted July 1, 2013 Hi all what size bore makes 420cc ,without strocker crank? 68mm bore and 58mm stroke makes 421cc Quote
toytech Posted July 1, 2013 Report Posted July 1, 2013 68mm bore and 58mm stroke makes 421cc wouldn't that be an 842cc since there are 2 cyls? Quote
satts Posted July 1, 2013 Author Report Posted July 1, 2013 Reason i ask is cause there is a motor on ebay thats for sale claimed to be a klemm research 420 cc its only stock crank. Quote
trickedcarbine Posted July 4, 2013 Report Posted July 4, 2013 NVM, just did a little research on Klemm Research. Guess that is an old shop. Used to do a lot of 250r stuff. Quote
vulvafan537240 Posted July 4, 2013 Report Posted July 4, 2013 Used to do a lot of 3 wheeler stuff back in the day Quote
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