300 / 331 / 340 / 350 cc kits
#81
Any one tried that 340 yet? Is it a good compromise? Hows the hp and torque numbers of the 331 vs 351? Most of the thread I find have had all the dyno chart pictures deleted I'm wondering if the 351 makes more torque and less horsepower, but the 340 (just maybe) might less torque and more horsepower? Or is the increase in CC on this bike directly proportional to more overall power
At a certain point beyond about 330cc it seems like the head design is what starts holding back unlocking more power (along with the stock cams). There are ways to address this but by that time you'll already have so much money into the bike its probably cheaper just to get a bigger bike.
I think the 340 is more or less a remnant of Bills development of the 351 kit, seeing how far he could push it. IIRC its still a "wet sleeve" and probably would have little gain over the 331 kit which is a "dry sleeve" and IMO the choice would be either 331 or 351 if you are looking at Bill's kit.
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