Great write up Paul - an excellent resource for others.
Quote:
Originally Posted by
El Forko
I'm thinking about cutting it down by 15cm to remove the temporary repair job, but am unsure what impact that will have on performance and noise levels. Any thought on that, please?? (Kev tells me that when he did similarly to a set of twins, it pushed the power band up the rev counter by 150rpm.)
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Overall exhaust length can also skew an engine's torque and power curves (header length/diameter has a much more significant factors though). A longer overall system tends to increase power below peak torque while sacrificing power above peak torque. Shorter systems tend to affect the engine in exactly the opposite way, reducing midrange torque in favour of increasing top-end power.
It will make a slight difference in torque/power shortening the silencer by 15cm, but probably not so as you'd really notice in the real world (you'd notice it more on a dyno). The biggest issues I reckon you'll have are with increased noise, and the much greater risk of melting your soft luggage!
