http://www.piteraq.dk/flight/muffler.html

Wade, In rotary use the packing in this style muffler would probably

last

till the first run-up. Then there would be lots of
sparks and a much louder exhaust note.
Bill Jepson

You can say that again :) ANYTHING inside a can is coming out!!!!

Paul Lamar

I never thought for a second that his would work in the exhaust temp range
of a Mazda rotary much less a 20B. Great idea, wrong application. Ballistic
silencers only last so long before the heat from repeated firing destroys
the packing or the repeated expansion and contraction takes the packing out.
I know, I've shot silencers before.  Just stating the obvious. ;>)
Wade

Hopefully the RX8 motor will be better.

Paul Lamar
 
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