Edward Klepeis wrote:

Dear Paul
     I have a suggestion why not make the 1st. dyno  testing type

muffler

out of steel. I know the rotary eng. will do it in a
very short time. just to see if concept  has any merit and to
keep cost down.On center tube would it help for  expansion and
contraction if a small piece of tube was welded into donut front
end with end in muffler expanded  to accept long inner tube. I
am open to suggestion about how to secure inner tube to inside of
tail pipe to keep centerd. I am waiting on dim. and a flange
to be bolted to my 13b motor if anyone can come up with this I can start

work.

                                                               Regards
                                                           Ed   Tech

Welding

That's is fine with me Ed as we will have to make some changes anyway.
What thickness steel sheet do you have lying around?

We are hashing out the details of the aft support for the center pipe.
Please send me your shipping address as Doug will ship you a flange.

Paul Lamar

Paul,
    I am not 100% sure what Ed is saying here but I think it is along the
lines of what I was thinking. In the original JPEG cut off the inner cooling
tube a few inches into the can. Slip another pipe over the inlet stub and
run it right to the outlet. Support the back of the slip pipe with the three
120 degree legs welded to the outside of the slip pipe as mentioned earlier,
but weld a larger diameter pipe to the other end of the legs. The diameter
of this rear outer pipe should be a slip fit in the outlet pipe of the can.
Another section ( 1" or so ) of this larger diameter could be welded in the
end of the outlet to stop the now full floating inner pipe from coming out
the back. I hope you understand what I am trying to say.

John

 
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