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Canadian Daves JustKDX
KDX - Shortcomings as a Dual Sporter?
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[QUOTE="adam728, post: 1361750, member: 55463"] Marana? I live by you.... Anyway, [list][*]Fredette Racing Products (FRP) cylinder porting [*]FRP reshaped head [*]FRP carb bore [*]FMF rev pipe [*]FMF Turbincore II [*]Boyesen Super Stock reeds [*]Chopped airbox lid [*]Twin air filter [*]Obsessive-compulsive jetting [*]49 tooth rear sprocket (up from the stock 47) [/list] Stone stock my bike put down 71.9 mph on GPS. After a few months I tore it down and found the anti-rotation pin for the ring had backed out of the piston and sawed a huge groove in the cylinder. Luckily I had a 6 month warranty, so I got all new parts, then promptly send everything to Fredette (it was winter in Michigan). When I got everything together I knew the bike revved much further than stock, but I figured that it would all equal out, more revs, shorter gearing, same top speed. Boy was I wrong. I threw together a spreadsheet to calculate speed based on rpm and about any gearing combination. This showed my that stock my 220 ran outta umph in 6th at 8,400 rpm. Modded? 9,600 rpm to reach the top speed I saw with the gearing I was running. Massive difference. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
KDX - Shortcomings as a Dual Sporter?
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