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[warwick]

Hi. There is a guy on ebay selling exhaust packing material. Has anyone used his stuff?

http://cgi.ebay.com/ebaymotors/EXPORT-SALES-ONLY-EXHAUST-MUFFLER-PACKING-20-X-38_W0QQitemZ280374444300QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item41479e810c&_trksid=p3911.c0.m14

Size of sheets is 20" by 38".

How much do I need to wrap a set of 1.75" Fullsac baffles in 4" CVO mufflers? Will two such sheets be enough?   

Thanks for your help. 
Warwick

[Boatman]

First welcome to the site.   Fellow member Dartman will give you the definitive answer on how much you need but he highly recommends that Ebayer for the packing.

I don't know how much noise you want but the tighter the packing is wrapped around the actual baffle, more the noise.

It takes about 10-11" by the length of the baffle to insert the packing inside the 4" muffler shell.
I did not wrap the actual baffle.  I cut and inserted the packing inside the muffler shell, bought some galvanized metal 1/4" square hole landscape cloth at Lowe's (lawn and garden section) and slid the 1/4" square material to hold the packing from the baffle.  Then slid the baffle inside the tube with the packing and metal 1/4" material already inside the shell.

Of course others wrap the baffle.

If you wrap the baffle you can probably get by with one sheet and would take 2 sheets to line the muffler shell as I did (I only had to wrap one  muffler)..   The mufflers already have packing in them that is quite good if you didn't already know.

Good luck. 

[warwick]

Hi Boatman. Thanks for your welcome greeting.

I assume that when you repack the muffler walls (instead of the baffle) you get a mellower, deeper sound by enlarging the sound absorption area? And conversely, when you wrap a tight layer (or two) of insulation round the baffle the exhaust note becomes more high-pitched?

warwick     

[dartman]

Warwick, 20 x38 should be sufficient for 2 mufflers, But it would probably be prudent to get two because of the increased international shipping rates. Boatman gave you excellent info, and you have grasped the packing concept perfectly.

[DakotaZeb]

I have used the packing in question and found it to be very good stuff.

I also tried wrapping more of the packing around the baffles and it did not make them quieter, just a different sound I did not like.  I would not put in more packing than originally came in the mufflers.  I pulled the screens and original packing out of one set I did, wrapped a layer of packing around the screen and re-inserted the screen/packing.

I now have a set of mufflers I can't get the screens out of.  Anyone have any thoughts?  Also, the baffles really fit tight and I think they are going to be a bear to get out also.

[Boatman]

I really can't help Zeb but I coated the header end of the Fullsac baffle and the setscrew end with antiseize.  Figured it couldn't hurt.

[igofar]

Slightly OT....
Has anyone ever cut off the baffle "stub" that sticks out past the end plate of the baffle.
I do know that the shape/size of the outlet changes the sound.....

With my higher compression and the dual headpipe kit, the 2" ones are hell on the guys following you!!!!!
(Blasted one of my Buddys going through a tunnel and he said it made his eyeballs shake!!! )

Brad

[HOGMIKE]

Slightly OT....
Has anyone ever cut off the baffle "stub" that sticks out past the end plate of the baffle.
I do know that the shape/size of the outlet changes the sound.....

With my higher compression and the dual headpipe kit, the 2" ones are hell on the guys following you!!!!!
(Blasted one of my Buddys going through a tunnel and he said it made his eyeballs shake!!! )

Brad

No Problem, just roll off the throttle a bit in the tunnel!

[Boatman]

Fullsac started shortening that stub here lately.

[DakotaZeb]

Don't shorten it too much or it makes it difficult to get a hold of to pull the baffle out.  Like Boatman said, Fullsac has started shorten them.  They are now 2.75" and they use to be 4.25".  I shortened mine to 2.75" and think they look better.

[igofar]

DakotaZeb,
Any difference in sound when you shortened them?

Brad

[DakotaZeb]

Any difference in sound when you shortened them?

Not that I could really tell.  I just like the look when you don't so easily see the end of the baffle.

[DW6019]

I have 1.75" Fulsace baffles in my 09 SERG slip-ons, I wrapped 2 yards of Woven Roving Fiberglass insulation around each baffle. 1st wrap , a full yard going clockwise using a piece same length as the baffle and tied with fiberglass strand, second wrap with 6 inch section cut off the first wrap when it was cut to length of the baffle going counterclockwise and once again securing with f/g strands from the edge of the mat, third wrap a full yard in length the same length as the baffle wrapped clockwise again and once again secured tightly with f/g strands. Very nice sound, no rattle or tinney sound from the cans. Bought the f/g mat from local marine surplus for $4.00 / running yard. Wrapped each layer very tightly and when finished "wound" the whole thing back inside the factory insulation/wire mesh. Did a buddies Reinharts and they sound much better than before, not sure the Reinharts on his otherwise stock 04 Electra Glide isn't the best sounding stock harley I ever heard. Main thing to remember is that woven roving is not the compressed "insulation" looking stuff sold online, it is a high quality criss/cross stand product that is used in manufacture of hi-end boat hulls. This is a two man job, unless you have three hands, hard to wrap tightly and tie at the same time otherwise. When complete the muffler bodies are completely full of insulation/baffle and run very cool.
And sorry, before anyone asks, no photos.

[cahdbiker]

I have used the packing in question and found it to be very good stuff.

I also tried wrapping more of the packing around the baffles and it did not make them quieter, just a different sound I did not like.  I would not put in more packing than originally came in the mufflers.  I pulled the screens and original packing out of one set I did, wrapped a layer of packing around the screen and re-inserted the screen/packing.

I now have a set of mufflers I can't get the screens out of.  Anyone have any thoughts?  Also, the baffles really fit tight and I think they are going to be a bear to get out also.

I would suggest a slide hammer with a hook on the end of it(providing you have some part of the baffle you can hook it to) and it should come out pretty easy. I have used this technique when removing and modifying some S.E.II baffles on my Heritage it worked great. Good Luck CAHDBIKER