Gary Buster wrote:

Been there-n-done that ....   the stainless and the welds won't take the
heat... unless the Inconel is used!!!

I'm tired of refabricating another exhaust manifold every 40 hours!!!   I
might call Atkins to have him weld one up for me... Steve McGowan's has
lasted over my 40 hour threshold without a hint of delamination... (the
backfire after shut off is the usually the destructive mechanism... )enough
of this, time to sleep so I can fly in the AM!!

~~~~~~~~~~~~~~~~~~~
Gary C. Buster LPT
Tyler, Texas

>From the looks of it Gary you have a resonant condition of the whole exhaust
system vibrating laterally putting too much strain on the pipes up
near where they are the hottest. Right in that 90 degree bend area as they
come out of the engine.

You need to put a piece of flex tubing in the system and support the muffler 
with a bracket of some sort. Tracy has boo coo hours on .035 stainless.

Another bracket tying the pipes to the engine below the pan would also
help.
 
Paul Lamar
 
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