Most of the stuffin's in my Wolf underseat are blown away and I'm going to repack it with stainless steel wool.
Since it comes in three grades (fine, medium, coarse), I thought I'd see if anybody has done this and, if so, what grade they used.
I know some folks have used stainless steel Choreboy pads, but I thought that the wool might be a better material.
Any (relevant) :goofy: opinions ?
I would think that the wool would break down quickly, from vibrations and temp changes, being so thin.
the SS packing visible in my Staintune can seems to be of the coarse variety.
So coarse grade must be OK.
I heard that the heavy duty stuff gives and additional 10HP on any bike because of the harmonic resonance that develops between the heavy coils of stainless steel. It helps drive the exhaust pulses out of the can much faster, thus creating a negative pressure that helps the engine breath better. :unsure: .........really! :goofy: ...............and it should also last much longer than glass batting.
Beck
95 VFR +10HP really!
Medium or coarse stainless wool is the ticket. The reason most aftermarket mfgs. don't use it is $$. Also, they don't get to sell you repack kits after the initial purchase.
The best non stainless repacking material is called SilentSport. When I was R&D Mgr. at SuperTrapp/Kerker back in the mid '90s, we started using SilentSport for all of the 'Trapps. Good stuff, made in Germany IIRC. www.silentsport.com
Rex
rode2rouenWhen I was R&D Mgr. at SuperTrapp/Kerker back in the mid '90s, we started using SilentSport for all of the 'Trapps. Good stuff, made in Germany IIRC. www.silentsport.com
I guess you remember the old Kerker Hot Tips series. Man I loved my white edition. I wanted to try a set on my vtec (targa still carries the red) but thought two would leave too much gap while four (ala' mv agusta/lasers) wouldn't fit and moved on to other ideas.
FotoMotoI guess you remember the old Kerker Hot Tips series. Man I loved my white edition. I wanted to try a set on my vtec (targa still carries the red) but thought two would leave too much gap while four (ala' mv agusta/lasers) wouldn't fit and moved on to other ideas.
Do you have any pics of those?
Yea use the cermaic, you will never have to repack it again.
rode2rouenMedium or coarse stainless wool is the ticket. The reason most aftermarket mfgs. don't use it is $$. Also, they don't get to sell you repack kits after the initial purchase.The best non stainless repacking material is called SilentSport. When I was R&D Mgr. at SuperTrapp/Kerker back in the mid '90s, we started using SilentSport for all of the 'Trapps. Good stuff, made in Germany IIRC. www.silentsport.com
Rex
Better link: http://www.silentsport.com/index.php?page=...&kat=silent
FotoMotoI guess you remember the old Kerker Hot Tips series. Man I loved my white edition. I wanted to try a set on my vtec (targa still carries the red) but thought two would leave too much gap while four (ala' mv agusta/lasers) wouldn't fit and moved on to other ideas.
I don't recall Hot Tip (could have been after I got axed), but they did make systems that were called "White Tip" (cool shark logo). These were systems that had the header Jet Hot silver ceramic coated.
Rex
Thanks everyone !
Just so ya'll know, the North American distributor for SilentSport:
http://areapnolimits.com/silentsport.html
Prices:
250g bag - All 2-stroke and most small 4-stroke of road mufflers - MSRP $19.95
450g bag - Large 4-stroke offroad mufflers and many Sportbike mufflers - MSRP $24.95
700g bag - Sportbike mufflers - MSRP $39.95
They don't have an automated shopping mechanism, but you can email them to order and they'll tell you the total cost.
They take credit cards or Paypal.
:thumbsup:
[image: gallery_10538_2675_11377.jpg]
whitetip.jpg
When using Silent Sport, pack it in tight!
Rex
rode2rouenI don't recall Hot Tip (could have been after I got axed), but they did make systems that were called "White Tip" (cool shark logo). These were systems that had the header Jet Hot silver ceramic coated.
Rex,
My memory is often quite bad so I may just be remembering this wrong but I believe they were made by Kerker/supertrap and sold under the targa brand:
[image: gallery_611_2287_2937.gif]
targa hot tip.gif targa hot tip
I had the white one on my, then new, white 87 Honda Hurricane CBR600F.
FotoMotorode2rouenI don't recall Hot Tip (could have been after I got axed), but they did make systems that were called "White Tip" (cool shark logo). These were systems that had the header Jet Hot silver ceramic coated.Rex,
My memory is often quite bad so I may just be remembering this wrong but I believe they were made by Kerker/supertrap and sold under the targa brand:
[image: gallery_611_2287_2937.gif]
targa hot tip.gif targa hot tip
I had the white one on my, then new, white 87 Honda Hurricane CBR600F.
If someone put all three of those on an '07 RWB(a la CBX), they'd be my hero... :unsure:
Doug,
That's an interesting pic! The cans sure do look like Kerker units.
The time frame would put them on the market when Kerker was a stand alone company.
IIRC, the Berger family bought Kerker in '91. They already owned 'Trapp at that time. They moved all operations from Sacramento,CA to Cleveland,OH in '94 which was when I got involved.
Decided to repack my Micron CF and didn't see a repack kit on their website, so bought a stainless steel kit from a local dealer and installed it. When I got off after my first ride, the canister was too hot to touch. Before, it only got warm.
So I'm back with the stock muffler and called Micron to order their rebuild kit.
milesbanditDecided to repack my Micron CF and didn't see a repack kit on their website, so bought a stainless steel kit from a local dealer and installed it. When I got off after my first ride, the canister was too hot to touch. Before, it only got warm.So I'm back with the stock muffler and called Micron to order their rebuild kit.
SS wool will conduct heat much better than fiberglass or ceramic packing, so I would expect the extra heat.
Ja, could burn out the carbon sleeve.
Prolly be OK to use SS wool in a Ti sleeve muffler though.....
I have an extra Yoshi pipe that was cut down to 10" and I have it packed full of stainless wool. Its still way too loud.
Two brothers sell a repack kit for $21
Ive seen a pile of steel wool catch fire once, I dont think I would want it in my exhaust system...
Anybody do how to with photos on this stuff? I have a Kerker carbon on my 5th gen and would like to tone the thing down.
MD
Edited April 27, 2009 by mello dudeWe used steel wool to repack the silencers on our tz250's and stuff to go through sound and tech inspection ,first practice after you came in there would be steel wool strands embedded in your leathers if you followed anyone too close .It did not seeem to last long just the first practice then it came out the tip and was gone forever .
definaetly go with sos extra celaning.................................. :unsure:
Is there an easy mail order source for SilentSport muffler packing? It looks to be the easiest to deal with and lasts plenty long, no?
theelfdefinaetly go with sos extra celaning.................................. :fing02:
make your you get the box with the freesh lemon scent :biggrin:
Steel wool will not burn inside a muffler for several reasons. Mainly the exhaust gasses do not carry enough oxygen or heat to support ignition. Steel wool burns in air because the conditions are just right. Most major muffler manufacturers use steel wool in their mufflers. If it were a fire hazard lots of people would know about it.
Steel wool is more durable than fiberglass when used properly. According to Borla it is used as a barrier to make the fiberglass last longer.
There must be some benefit to using steel wool because the manufacturers use it even though it's heavier, costs many times more than fiberglass, and has poor thermal insulating properties. I think it absorbs different frequencies than fiberglass, so it provides dual-stage sound absorption in addition to increased durability.
Check out the Two Bros site, they show a cutaway of their muffler construction.
When I repacked my M4s I measured the thickness of the steel wool strands and ordered new stainless steel wool with the same strand thickness. The new stuff looked a lot finer than the original, but I used it anyway. FMF and Two Bros sell repack kits with steel wool.
on the last muffler I had, in noticed the inside pipe had been wrapped in header wrap. and the muffler itself was packed with that long strand fiberglass packing. they were cool to the touch and I'm guessing it was prolly more horsepower condusive than the setup I have now, which is everything gutted. can gets Real hot, and it's REAL loud, just barely a peg below open cat/header. but it sounds so good too. lol.