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xs650 > > Motorcycle Systems > > Exhaust > > 3" choped std pipes- too darned quiet with steel wool! + pic


3" choped std pipes- too darned quiet with steel wool! + pic
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philby
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Joined: May 30, 2006
Posts: 30
Location: australia/philippines
PostPosted: December 13, 2007, 7:39 am    Post subject: 3" choped std pipes- too darned quiet with steel wool! + pic
well the 3" end caps looked good but were TOO quiet! so i have a new plan. i will fit the perforated tubes (as pictured) with f/glass packing material. this will get them 'flowing' better and should sound better. before i started all this they were too loud.

previously unbaffled @ 1,200 rpm : 111 db
" " @ 3,500 rpm : 115 db

baffled with steel wool and perforated end 'disc' @ 1,200rpm : 101db
" " " " " " " " @ 3,500rpm: 105db

the stainless steel scouring pad baffleing affected performance at lower revs, i think it may have been choking a little too much....

tomorrow ill try it with the new perforated baffle as pictured (with glass wrapping)...

ssa40034.jpg
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the new style baffle... should flow better...
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ssa40034.jpg

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