Megaphone Baffle Packing

daveo
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01 Sep 2020 19:30 #834190 by daveo

Megaphone Baffle Packing was created by daveo

Liking to quiet the exhaust sound down, and wonder if fiberglass packing will produce the best result?
There is no quiet-baffle available that I am aware of.

Currently using the V&H Street Baffle with no sound deadening material.

1982 KZ1100-A2

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SWest
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10 22 2014

01 Sep 2020 19:47 #834192 by SWest

Replied by SWest on topic Megaphone Baffle Packing

No eBay APP ID and/or Cert ID defined in Kunena configurationGet the mat type. It will do the job and last longer.
Steve

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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daveo
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02 Sep 2020 05:51 #834203 by daveo

Replied by daveo on topic Megaphone Baffle Packing

Is there a better way to do it, than just wrapping it tight and stuffing as much in as possible?

When the header was all shiny new ten years ago, the baffle had a thin fiberglass sheet held together with a couple pieces of tape.
That sheit ended up a shredded mess in short order, and something bout that didn't seem right.

:blink:

.

1982 KZ1100-A2

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loudhvx
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02 Sep 2020 09:59 #834209 by loudhvx

Replied by loudhvx on topic Megaphone Baffle Packing

I use thin steel wire to hold the glass mat. Tape can melt and make it difficult to remove the mat later.

I only use mat specific to exhausts, like what is shown. Construction fiberglass insulation supposedly disintegrates over time.

1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.

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DoctoRot
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Oh, the usual... I bowl, I drive around...

02 Sep 2020 11:34 #834215 by DoctoRot

Replied by DoctoRot on topic Megaphone Baffle Packing

its preferable to use stainless steel wool in on the inside and fiberglass on the outside as it handles the heat better than fiberglass. I use safety wire to hold the matt on. this will make it quieter at idle but the only way to really quiet down an exhaust at full tilt is to increase the volume of the muffler.

'78 1000 Long Term Project
'80 750G
750 Twin Big Bore Track Bike

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daveo
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02 Sep 2020 12:48 #834225 by daveo

Replied by daveo on topic Megaphone Baffle Packing

No eBay APP ID and/or Cert ID defined in Kunena configuration

DoctoRot wrote: its preferable to use stainless steel wool in on the inside and fiberglass on the outside as it handles the heat better than fiberglass. I use safety wire to hold the matt on. this will make it quieter at idle but the only way to really quiet down an exhaust at full tilt is to increase the volume of the muffler.

How many wraps do you suggest applying around the baffle, and how tightly?

Is this the SS wool you recommended using?

1982 KZ1100-A2

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SWest
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10 22 2014

02 Sep 2020 16:22 #834243 by SWest

Replied by SWest on topic Megaphone Baffle Packing

I don't think that's needed. My baffles came with the usual packing with the wire in a cross pattern. The mat works well. I'd wrap it for a tight fit.
Steve

Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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DoctoRot
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Oh, the usual... I bowl, I drive around...

03 Sep 2020 10:45 - 03 Sep 2020 10:48 #834301 by DoctoRot

Replied by DoctoRot on topic Megaphone Baffle Packing

just one layer of the stainless. Stainless doesn't dampen the sound as well as fiberglass but it handles the heat much better. This is the kit I used the last time I repacked the mufflers on my Aprilia, it comes with a stainless mesh as well. I would wrap as much as you can and as tight as you can and still get it in there. www.amazon.com/gp/product/B00EDA0UXU/ref..._title?ie=UTF8&psc=1

'78 1000 Long Term Project
'80 750G
750 Twin Big Bore Track Bike

Last edit: 03 Sep 2020 10:48 by DoctoRot.

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