Quote:
Originally Posted by petrolhead
BTW, the factory manual quotes 272° from 0 to 0 for the 2008-12 cams.
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Really? Which page? I was looking for that years ago and couldn't find it.
Then our own Racer_X actually measured with actual hands on those parts and he came up with those specs @ 1,25m lift. I think pre-gen manuals used 1,00mm or less because an earlier version had 290° cams or some insane number.
https://www.ninjette.org/forums/show...2&postcount=21
Also new-gen intake-cams have 1mm more lift than exhaust. Some people installed intake-cam on exhaust side, but gains are minimal as intake-ports are primary restriction in head.
Yes retarding intake couple degrees should move power-band up. Nice thing about Beet cams is longer duration matches increased lift so you don't have to install stiffer valve-springs. All U.S. made cams are crap, I've never gotten cam from Web or MegaCycle with two lobes that actually matched. I think they're using monkeys in back-yard with sticks & stones to cut these cams. Only one I would trust is custom-grind from Dema Elgin (not the copycat Elgin Industries).
Easy way to port & polish head to remove restrictions along with getting 1mm larger intake-valves is to.... install Ninja 300 head!!!
