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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
poor quality repop silencers
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<blockquote data-quote="Bill Thomas" data-source="post: 59987" data-attributes="member: 485"><p>Hello Ron, It was only an aprox' Measure, I am not clever, Just a bit of fun, And it was on my Comet, I just thought it looked too long, So I may as well take a bit off, And try and get it close to the race pipes length, I have done this all my life, Sometimes it works sometimes not !!I would take the measure on the centre line, Years ago on my Blue twin road bike, I had two pipes with alloy ends, Sprinting 1/4 mile did 13.5 sec' Rain or shine !, I got my brother Ron to weld 6" on each end, It killed it, !! 14 .5 sec' !!, Did not know if it was something else, Got the saw out, Took 3" off, = 14 sec !, Saw another 3" off, Back to 13.5. !!. On Twin front pipes, I have seen a lot of differance, Some of the ones in Aus',The front one goes a long way forward, I have a set on my road L/ning that nobody could fit !, They were very cheap ! so I made up a stub fitting, If it is going Blue, Is there a hot spot where the gases are getting stuck ?, I have seen this on twin pipes where they go two into one, Some are very bad there. Soon be spring, Cheers Bill.</p></blockquote><p></p>
[QUOTE="Bill Thomas, post: 59987, member: 485"] Hello Ron, It was only an aprox' Measure, I am not clever, Just a bit of fun, And it was on my Comet, I just thought it looked too long, So I may as well take a bit off, And try and get it close to the race pipes length, I have done this all my life, Sometimes it works sometimes not !!I would take the measure on the centre line, Years ago on my Blue twin road bike, I had two pipes with alloy ends, Sprinting 1/4 mile did 13.5 sec' Rain or shine !, I got my brother Ron to weld 6" on each end, It killed it, !! 14 .5 sec' !!, Did not know if it was something else, Got the saw out, Took 3" off, = 14 sec !, Saw another 3" off, Back to 13.5. !!. On Twin front pipes, I have seen a lot of differance, Some of the ones in Aus',The front one goes a long way forward, I have a set on my road L/ning that nobody could fit !, They were very cheap ! so I made up a stub fitting, If it is going Blue, Is there a hot spot where the gases are getting stuck ?, I have seen this on twin pipes where they go two into one, Some are very bad there. Soon be spring, Cheers Bill. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
poor quality repop silencers
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