Thanks again,  we have decided to have the 4" exhaust pipe angle
back from the muffler at 45 degrees for 10 inches and then curve
down to vertical for another 10 inches.  If you can draw that on the
one inch grid,  I will try to find the graph paper.  Jerry

Jerry, Thats what the double curve one does only it also does an S
curve when looking at it from the front. You already have the flats on
grid paper but here they are again. This is for the Tailwind as you
did not tell me it was for the BD4. I'll have to check the fit on the
BD4.

BTW Bob white, why the evap cores?

Paul Lamar

Hi Paul,

I decided on them early on due to conversations with Tracy.  I know you
consider his system to be marginal, but it is flying. :)

I will have to get the dimensions next time I get to the airport.  I
have made a cardboard mock up of Jerry's muffler and know that
moving the exhaust tube back about 7 inches will clear the evap
core.  They are GM evap cores that fit a 1984 Buick Electra.

Bob White

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http://www.bob-white.com
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