Join Date: Jan 2007
Location: Rehoboth Beach, Delaware
I have repacked my Silent Touch about 6 times. I experimented
with nearly every fiberglass material, stainless steel mesh, stainless
steel cloth, and different bland clamps.....I finally came
up with the best solution that will not blow out, at least it
hasn't yet. These are BristolCore products:
- wrap the entire length of the core with S400 steel wool sheet (14.5" by 24"), but
leave enough room for the core to slot into the mating holes. Secure with worm
clamps every six inches or so. Be sure to secure the ends especially well so the
steel wool does not slide down the core. Trim off excess worm gear end bands because it
will get stuck on the fiberglass packing otherwise.
-fill can with spec 19 (*do not use the fiberglass mat, it will burn up very quickly), use
a dowel, rod, etc. to push the fiberglass down into the muffler but don't push too hard, just enough to
lightly compact the material. Be sure to add enough fiberglass at the endocarp to account for the space
between the endcarp and muffler body or else you will have a void with no packing material in that area.
This will reduce flow and create unnecessary heat in the endcap.
- use permatex high heat copper sealant around the mating surfaces between end cap and body to prevent
exhaust gas leaks. The muffler body may distort through the many heat cycles and if the bands holding the
can to the mounting bracket are tightened too much causing the body to indent/bend then this may cause exhaust
gases to leak past the mating point.
-if one of the screw fastener locations strips or has to drilled out then use steel rivets (not aluminum)
2006 Elise ST (someone else has it now . . . )
2008 Exige S240 ST