thunderace
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| posted on 19/12/07 at 02:33 PM |
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how to quieten my exhaust advice needed
hi i have an american import honda cmx450cc and needed to buy an exhaust but i could only get one from the usa with removable baffles ,but now i have
it its too loude (its giving me a head ake andhurting my ears )so i needing to mod it im going to wield a washer on it but shoud i do it at the start
or end of the baffel and how big should i make the whole in the washer (its 35mm at the moment).here is some pics so you know what im on about.
[Edited on 19/12/07 by thunderace]
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RazMan
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| posted on 19/12/07 at 02:46 PM |
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That wadding looks quite tightly packed - it fibreglass? A looser pack might help a bit. Also you can fit a 'decibel killer' on eBay which
are quite effective.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Mr Whippy
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| posted on 19/12/07 at 03:11 PM |
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a cone (with a hole at the tip say 20mm) at the end of the exhaust with the cone pointing inwards as that will reflect the noise back into the
wadding, which by the way looks pish. You'd be better ditching that stupid thing, buying some rock wool and wrapping it round a chicken mesh
tube. sorted
[Edited on 19/12/07 by Mr Whippy]
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Dangle_kt
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| posted on 19/12/07 at 03:27 PM |
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you'd want the cone ^^^ to be made of some metal with small holes in so it doesn't end up too restrictive.
Also if you are after a real locost alternative, an socket that is the right size does a great job as a cheap decibel killer, square hole closest to
the end, it s a good temporary fix.
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Mr Whippy
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| posted on 19/12/07 at 03:40 PM |
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you should be wearing ear plugs whilst on the bike anyway
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David Jenkins
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| posted on 19/12/07 at 03:47 PM |
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You might find this thread interesting, if you're planning to do your own
mods.
I did it on my car's exhaust - I can't say whether it made it quieter, but it did change the note and it's definately less harsh on
the ears.
David
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