How does the variation on a Peugeot(or other variated bikes) effect the expansion chamber. Since the variation does not change the RPM's dramatically like on Puchs where the RPM change from take-off to top speed vary so much.
I bought a pipe with more of a "top-end" to it but if my RPM's dont change that much then how does it effect my "low-end"?
your expansion chamber will hit for a shorter rpm range which will be extended longer do to the variator. in other words your bottom end won't suck as bad as a puch.
the design of the expansion chamber is affected by the narrower operating range of engine speed on a cvt bike. you will find a steeper converging cone to maximize the power hit on the pipe, since the bike spends much less time off it.
So from a practical standpoint unless you use very light variator weights to delay variation you would want to use a midrange pipe. Ideally you would want your variateur to keep the engine at the exact RPM at which your pipe produces maximum power at all speeds. So you are juggling variateur weights and possibly drive sprockets and port timing. It should take a lot of time to even get close
Well, you're juggling clutch stall rpm, spring preload, spring rate/dampening rate, and variator adjustments. If one was really patient you can do a lot of tuning with the variator settings and have a really narrow powerband pipe that came on at whatever rpm you so like.
Lighter Variator weights will get you in to the power band of a high RPM pipe sooner. But then your bike is screaming all the time, and if you go too light you don't get full variation.
get a launch lever! hit the pipe twice!
tune your vario!
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