V&H Straight shot baffle issues(?) - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 10 (permalink) Old 07-06-2019, 12:37 AM Thread Starter
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V&H Straight shot baffle issues(?)

So, this is my first post. Want to leave with how much I love this form it's been very helpful. Especially with installing a nautilus horn. Now it's my issue. I bought an 05 C50 with Vance & Hines straight shot pipes. They had the standard baffles with them which I found to be a little loud for my taste. After looking at several reviews of The Quiet Vance & Hines baffles I didn't I think that it would be worth the $100. So, my cheap ass went with a universal set from Amazon.com.



They didn't quite quiet it down but it gave it a much deeper noise which I liked. However, when I would accelerate forgive a rather loud WAP WAP WAP WAP WAP WAP WAP. After I let off the throttle and would maintain speed it gave a really nice deep thrum that I liked. So, I thought maybe removing the fiberglass wrapping would let it breathe more and eliminate that rapid succession of womp womp womp. Fortunately it did and it gave it a wonderful pitch that I love. Unfortunately, it created a chirp. Now the chirp only happens in very slow acceleration or deceleration. Occasionally it will happen at certain speeds but usually goes away with it open throttle. I thought maybe it was caused by the gases trying to escape through the tight end cap so I drilled 1/4 inch holes in the end cap towards the end of the exhaust. This helped a tiny bit but did not alleviate the issue. I should also note at this point I had them secured from the whole closest to the end of the exhaust. From doing some research I found this sound could be caused by an exhaust leak which I thought maybe the second hole further up from the end of the exhaust. I tried moving the exhaust to the second hole and blocking the 1st hole which did not fix the issue unfortunately. The Bell ends do seem to fit tightly and some areas in Loosely and others I'm wondering if the chirping is caused by friction in the metal vibrating between the exhaust tube and the baffle or if it could be gases spreading out the split side of the thin stretch of the exhaust that is perforated. Does anyone have any insight to this issue? Should I just buck up and spend the money on the Vance & Hines quiet exhaust? Or just put the fiberglass wrap back on and be done with it?
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post #2 of 10 (permalink) Old 07-06-2019, 07:30 AM
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Opening an entire can of worms with this after market exhaust question! I have opinions on new baffles but I dont know for sure so I wont give them. My cobra exhaust was too loud and now Im loving my oem exhaust. I hope you find the sound your looking for. Search older "exhaust" posts for other thoughts.
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post #3 of 10 (permalink) Old 07-06-2019, 08:33 AM
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I had quiet baffles & never had a problem, until years later when I lost a bolt & they would rattle slightly. Too lazy to find a new bolt, so I sold the bike

Robyn
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post #4 of 10 (permalink) Old 07-06-2019, 04:15 PM
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Quote:
Originally Posted by Rob 61 View Post
I had quiet baffles & never had a problem, until years later when I lost a bolt & they would rattle slightly. Too lazy to find a new bolt, so I sold the bike [IMG class=inlineimg]https://www.volusiariders.com/images/smilies/icon_biggrin.gif[/IMG]
Lol!
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post #5 of 10 (permalink) Old 07-09-2019, 01:02 AM Thread Starter
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* update. I wrapped the skinny parts of the baffles with some Scotch-Brite stainless steel scrub pads. It added a little more to the wop wop wop but also took away from the chirp. This leads me to believe that the small holes in the skinny part of the baffle are the cause of the chirp. Sometime this week I think I'm going to use a drill to enlarge and a few sections of the holes and see what effect that has. Hopefully this post can help someone and the same situation as me. And if I can figure it out definitely going to post this an Amazon review for said baffles.
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post #6 of 10 (permalink) Old 07-09-2019, 08:41 AM
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Wop wop wop
Italian bike?

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post #7 of 10 (permalink) Old 07-09-2019, 10:42 AM
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Quote:
Originally Posted by Thorntonj3 View Post
* update. I wrapped the skinny parts of the baffles with some Scotch-Brite stainless steel scrub pads. It added a little more to the wop wop wop but also took away from the chirp. This leads me to believe that the small holes in the skinny part of the baffle are the cause of the chirp. Sometime this week I think I'm going to use a drill to enlarge and a few sections of the holes and see what effect that has. Hopefully this post can help someone and the same situation as me. And if I can figure it out definitely going to post this an Amazon review for said baffles.
Can you please post a link to the particular baffles you've installed?

Joy Rider

2008 Suzuki C50 Limited Edition

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post #8 of 10 (permalink) Old 07-10-2019, 12:28 AM Thread Starter
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amazon.com
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post #9 of 10 (permalink) Old 07-10-2019, 12:31 AM Thread Starter
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The holes in the skinny part of the baffle are pretty small. Maybe 1/8th of an inch.
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post #10 of 10 (permalink) Old 07-11-2019, 11:16 PM Thread Starter
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I fix my issue today. It turned out my suspicions were true and that the chirp was being caused by are being forced through the tiny holes. So, I pulled the baffles out, put them in the vise got the drill. I used a 13/64 bit. Wanted to keep things even so I did it on the top bottom and both side lines of holes and then the ones in between. So kind of like the eight points of a compass. Put it back in took it for a ride and no more chirp! Very happy with the sound and I'm not getting too much back pressure oh, it seems to be breathing just right. Hope this can help somebody else out if they decide to buy some cheap baffles and don't mind putting a little elbow grease into it.
Rob 61 and scorpion46 like this.
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