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If you want the definitive story on the subject, get a
copy of "Two-Stroke Tuner's Handbook" by Gordon Jennings. Very
interesting but of little use to the rotary enthusiast other than to educate one
about how little it applies to our engine of choice.
I agree
completely with Tracy on this. A few years back when stock snowmobiles just
weren't good enough for me, I wasted copious amounts of money on various
aftermarket exhaust pipes (amongst other things) in an effort to be top dawg.
I discovered
that 2-stroke exhaust tuning is very much a black art based in scientific
principles, but some pipes worked very well while others that should have
simply didn't.
However they aren't subject to the same destructive hi-temp/press pulses that
the rotary produces, so can be made very light weight. Interestingly though the
concept of tuning them is based on reflective pressure pulses not unlike the
EDDIE effect :-). So they may have more in common with our (Ed's) intakes than
our exhausts?
S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe in,
Enthusiastically act upon, Must inevitably come to pass".
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