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Old 06-08-2004, 07:08 PM   #10
BlownCJ
dangerous rider ?
 
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Joined: Nov 2003
Location: Powder Springs GA
Oddometer: 153
Quote:
Originally Posted by Mack
Your certainly headed in the right direction. I bet either would work, I went with a 41, but I still want to try a 39 as well just to see the diff, dyno curves, etc. My guess is the 660 Rallye gets by with a 39 as IMHO its motor is a better matched to this with the high compression, they really need the low end, dual exhausts, and that garage the rallye calls an airbox, etc. I suspect a FCR41 fitted with a Powernow intake will operate much like a 39, that is my plan. Still a properly priced and well sorted 39 might just be the ticket. Cheers, Mack

PS. I would think that it might make a difference if it is a pre-03 or otherwise.
not true got an fcr 39 with the tps and hot start off of ebay from a 03 450 exc well see how it does on the 03 adv with a rallye cam and akra

Barry
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