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How Many RPM
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Posted by: EBOD---------------------
In connection with the current generation KDXs, does anyone know the maximum RPM for a KDX 220 stock. Does this change with a FMF rev pipe (or is there just more HP at the higher revs)? Does the number change with the airbox and/or carburation mods? Where in the rev band is the KDX 220's peak power (stock, w/ pipe, w/ other mods, whatever info you may have)?
How do the foregoing numbers compare with the KDX 200 and/or a KTM EXC 200?
Any easy ways to get more revs out of a KDX 220?
I'm interested in these numbers in light of the KDX's reputation as a low-end bike and the recent discussion as to whether a YZ 125 can spin to 14,000 RPM.
Thanks
--EBOD
Posted by: atc3434`---------------------
Well, I don't know about the KDX220's max revout, but I went over to the MXbike board and got set straight on the YZ125. (I was the one who origninally stated that a yz could do 14,000rpms.) Well, most of the guys over there said that most 125s pull good to about 11 or 12 grand, then sign off. So I guess I was off by a good two grand! Opps! :mad: I guess that a KDX220 couldn't run those numbers, maybe to 10,000rpm, but I'm guessing. Have also heard that they are done making power (stock) at about 8,000rpm. For some interesting info on the KDX220 powerbands, look on the JustKDX website, they have some cool dyno charts.
Finally, I appologize about the wrong comment on the YZ's spinning to 14,000rpm. I got fed some bad information, and almost sent it on, glad you fellas checked me on that one! 
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