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Shoggin
Posted on Monday, April 16, 2018 - 11:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's so quiet in here I'thought Id cross post from Buell XB.
I had some fun with wrenches and thought I'd share:



The victims:


(Spoiler) The winner:



(Message edited by shoggin on April 17, 2018)
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Shoggin
Posted on Monday, April 16, 2018 - 11:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok that was fun... so heres the info
I did all the testing with the most appropriate ECM, in the same location using the Niosh iPhone app 6' from the tip, in a 4000' bldg, warm engine.
Idle, 5k and 7k.

Stock resonator 80dB, 94dB, 100dB (Quiet. Too quiet and rattly)
Stock muffler with 2.5" tips on the OD of the muffler outlets 88dB, 97dB, 106dB (really nice deep tone and mellow volume)
Open headers (LOUD) Probably maxed the 'meter' and the snow falling is insulation from the roof. 102db, 117dB, 124dB! (The dead are coming to complain about the noise)
APH RACE Y-pipe only 100dB, 111dB, 118dB (Meaty)
APH RACE y-pipe and muffler with single tip 90dB, 105dB, 110dB (Deep tone, and ok on the highway but your neighbors hate you. It's totally worth the performance increase though: D)

On to the vids!
Stock resonator:


Tips:



OPEN!! I SAID OOOPPPPEEENNN:




(Message edited by shoggin on April 17, 2018)
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Shoggin
Posted on Monday, April 16, 2018 - 11:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

APH RACE Y-pipe:
https://www.youtube.com/watch?v=-tTB2cBrviA

APH RACE Y-pipe and muffler (single outlet)
https://www.youtube.com/watch?v=FsacXR-z7Tg

And more fun with the lights out:
https://www.youtube.com/watch?v=6He0cA52CK0
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Hughlysses
Posted on Tuesday, April 17, 2018 - 08:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

See this for how to insert videos:

http://www.badweatherbikers.com/cgibin/discus/disc us.cgi?pg=formatting#images
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Shoggin
Posted on Tuesday, April 17, 2018 - 01:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You just add
\youtube in front of the eleven digit code thats in-between {}, yes?

Oh well heres a like to BuellXB:

https://www.buellxb.com/forum/showthread.php?54378 -Cooters-EBR-exhaust-test-with-dB!

(Message edited by shoggin on April 17, 2018)
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1313
Posted on Tuesday, April 17, 2018 - 08:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

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