V&H baffles

from what I see, the packing is a renewable resource which can be obtained from a number of sources for a minimal amount of quid and if you complete your transaction of said packing online you won't have to move away from your computer or your rum for that matter which could also translate into a much more pleasurable shopping experience to say the least if not less

killin' me lol

[beezer]

did you do it yet
did you do it yet

[dogdoc]

just slide them out and forget the cutting stuff.

Did that doc... they're just incredibly loud..... need to tone them down just a bit so I don't have to worry about a ticket. Yes... they are that loud! :)

[beezer]

what?

what?

Shush.

[Scoot]

Go ahead and do it Nico Then yours will sound as good as mine

[beezer]

what's the frequency Kenneth?

I did it! Cut them in half.... and back in...... super loud but pleasing!

[NogiRider]

Thank you for this post. I have V&H dual baggers with the baffles out. I like the loudness, but I get a bit of a "tin" sound. It's too quiet for me with the baffles in, so I too will try halfing them and see how they sound.

[andyvh1959]

Cutting the baffle in half will only increase the noise level. Cutting the baffle in half will not double the noise because sound waves don't work like that. DOUBLING the length of the baffle will decrease the noise level, but not by half, again because sound waves don't work that way. My VN1600 has V&H Bigshots with straight through baffles (no packing), STUPID loud in my opinion. I bought the bike used so the PO installed the loud pipes. So I installed the V&H Super Q baffles which feature the fibreglas packing and only a 1" hole onto the baffle from the side of the baffle nose. More quiet than the straight through baffle, but not by much, still too loud for my ears.

So the next move is to ADD length to the baffle. I'll add a deflector/divider welded onto the inlet side of the baffle, which will cause the exhaust flow to move around the deflector and break up the sound waves. As sound waves move slower the pitch of the sound gets lower, which is generally more pleasing.

[alwhite00]

I added 6” to my V&H and it was still annoyingly loud.

[andyvh1959]

Hmm, what did you do to add 6" to the baffles? Weld on another section of straight through baffle? My plan is to add a folded deflector section ahead of the Super-Q baffle. The Super-Q baffle is the left most section with the packing around it. Note that the Super-Q baffle has a single inlet hole about 1" diameter. Even with that in the Big Shots exhaust it is still too loud/raspy for my taste. The Super-Q baffle only extends into the outlet pipe about halfway, and leaves an area ahead of the baffle that is empty. Usually an empty area is good to reduce the harsh tones because it acts as a damper. However, there is not enough open volume in this area to dampen the noise level any amount. So the added deflector section should disrupt the exhaust flow which slows the sound wave, and lower the sound wave frequency.

The other option is to weld the straight through baffle originally in the Big Shots onto the inlet end of the Super-Q baffle, but then to also add deflectors into the added baffle to also disrupt the exhaust flow.

[MAS Tequila]

http://www.vulcangadgets.com/files/vhbagger_shhh.html

[alwhite00]

Originally Posted by andyvh1959

Hmm, what did you do to add 6" to the baffles? Weld on another section of straight through baffle?

I added a 6” piece of perforated baffle material and wrapped it with baffle material.