Finn Lassen wrote:

No marked improvement on the ground (idle to 3000 RPM). Maybe a bit

better in the cockpit

while flying. I need to run with and without several times.

Finn

Finn,

Mike Wills wrote:

  No improvement in comparison to what? Hope your not saying that there

is

no improvement in comparison to a straight open pipe with no muffler at

all.

Mike Wills

Jeff Spitzer wrote:

I'm really not an expert but I was afraid the pressure wave would all come
out of the first row of holes with no particualr improvement.

Jeff Spitzer

Make them smaller and gradually larger as the wave travels down the pipe?

Paul Lamar
 
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