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Doug,
From previous chatter on the list the answer seems to be
to go up to about 2.5 inch for the collector to take advantage
of the scavaging pulse where the two equal length primary
tubes converge..........This 1/2 wave pulse was said to be at
about 12 inches for the primary tubes at about 6000 rpm
for the rotary.........If I recall correctly..........
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold
-------------- Original message from DLOMHEIM@aol.com: --------------
I need to order in a Merge Collector for my exhaust system and I was wondering what some of you are doing in this dept. Can I get a way with two 2" into one 2" collector or does it need to be 2.5" or 3" on the way to the muffler? Also, is burns he only good source for this? Their price seems pretty steep for a two into on collector in 304/.065 SS.
Thanks for any inputs.
Doug Lomheim
RV-9A, OK City, OK FWF
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