Good advice Lynn. Here is a bit more info while we are on the subject.
Ed Anderson is using .140 thick SS pipe bends designed for cheap SS

hand

rails

and it does'nt even discolor. A bit heavy. You can buy it from RB

Wagner.

Ideal to build your own turbo manifolds. I would only use it for the
first couple of feet and then go down on the wall to .065 and finally
.035 out on the cooler ends. Slips joints on all transitions.
A system like this should last forever.

Paul Lamar

Paul,
How does 316 SS go for exhaust.
George (down under)

Supposedly not as good as 321 but it sure works for Ed in the .140
thickness.

Paul Lamar

I have 256 hours on the schedule 40 SS pipe used by RB Wagner for railings.
While they have finally discolored (perhaps due to the long duration flights
and constant heat of later flights) there is no other deterioation.  In
fact, after the PowerSport accident, I decided that even though I have flown
185 hours and have 256 hours on the exhaust pipes that the 18" unsported
from the exhaust port to the end of the header pipe is probably asking for
trouble.   So out tomorrow to put some spring supports although I have
carefully check for cracks near the flange, I have noted none.

My pipes go up into the 1/2" thick flange and are welded on the top inside
of the flange/pipe area approx 1/8" inch down from the port surface.  The
welder that did it at one time welded turbine blades so apparently knew what
he was doing.

They are noticably heavier than an equivalent exhaust made out of 0.065 but,
I am pleased with their performance.  Based on the wear so far, I expect
never to have to replace the headers for that reason.

Ed Anderson

 
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