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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through January 15, 2009 » My Attempt at Exhaust Modifiacation « Previous Next »

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Bikejunky
Posted on Sunday, January 11, 2009 - 08:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well I am trying this one out. Hopefully next weekend I will have it sealed up and mounted.



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Hooliagn
Posted on Sunday, January 11, 2009 - 08:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Good Luck !
Keep us posted and make sure you post a sound clip.
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Walt
Posted on Sunday, January 11, 2009 - 08:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I see you have the end off the muffler. Would you post a picture of the inside of the muffler?

Thanks,
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Mrncgy1
Posted on Monday, January 12, 2009 - 04:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Good luck Nate. Make us proud and put that exhaust to good use. I'll have to come see the finished product when you're done.

-Tony
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Carbonbigfoot
Posted on Monday, January 12, 2009 - 11:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Please, please document with pictures. More pics, better!

Rob
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Bikejunky
Posted on Tuesday, January 13, 2009 - 09:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Here are a few more work in progress pictures. Also, If anyone has any exhaust experience or suggestions please feel free to chime in. My thinking is that by eliminating 1.5" of muffler, and cutting out the piping inside the end of the muffler it should eliminate some of the muffle. Also I used a 1"x1.5" square outlet as re-enforcement where I removed the stock outlets. I took the part I cut out, flattened it and welded it back in place as you may be able to see in the pictures. My intent is to make louder without really changing performance.





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Slypiranna
Posted on Tuesday, January 13, 2009 - 09:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)



Done months ago.

Rerouted the internal gas flow route along with a slight mod to the reflection point.

Pic obviously doesn't show the final flow route nor final size/exit style...but this has been done, just the same.

Side exit within the major chamber yielded a minor hp of 4 peak and 3 tq...BUT, still required tuning.

Prior test/tune over ride found an AFV of 108/106 with learning enabled but it took well over 175 miles to understand. 08 1125R w/8k+ on the clock/getting perfected.

DB's was only increased by a mere 5, tho deeper tone noted...and there are witnesses herein that heard it.

Best of wishes on your tests, mm
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Zac4mac
Posted on Tuesday, January 13, 2009 - 11:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

5 dB sounds small, but it's between 2-4 times as loud.
nice
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Bikejunky
Posted on Wednesday, January 14, 2009 - 12:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

SLY,

What kind of routing did you do internally, My plan so far is to just leave the exit as an opening without any tubing routed to it. You can see in the pictures I posted that I haven't hooked up any plumbing. In your opinion is this a bad move? I haven't sealed her up yet so I still have options on the inside. I am also thinking of doing an identical exit on the opposite side. Any feedback would be helpful!



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Bikejunky
Posted on Wednesday, January 21, 2009 - 06:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

so anyone have any feed back on this?
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Bikejunky
Posted on Wednesday, February 11, 2009 - 05:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)



My Video of the finished project, I'll try to get an actual video camera for a good clear look and sound!
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