I've got the facilities to weld this stuff, but I'm not sure
exactly

how to fabricate a tight bend like this out of flat stock. I'll have
to take a look at it. I will have air cooling the exhaust system.

Brian Trubee

     Brian, clarify something for me. Are you going to make square
tubes
     coming off the square exhaust flanges? Like your originally
square
     tube tuned muffler? If so I would like to test it on the dyno
for noise
     and power  if you don't mind.  I think it is a good idea worth
testing.
     Don't forget to purge the inside of the SS tubes with inert gas
when you
     are welding them. Keeps the flash down.

     Paul Lamar

No, sorry about the confusion- the exhaust flanges are square with
four
bolt  holes, but the exhaust pipes are round. I had to get a machine
shop near here cut the flanges with a water jet. It would be
interesting
to see how well square pipes attenuate noise.

Brian Trubee

While you are at it get them to make a batch of those square flanges.
I am sure a bunch of people would like some. I'll take four right
off the bat. Build a drill jig while your at it so the holes
will line up with the exhaust port.

Paul Lamar

Paul,
I am going to make a mild steel prototype of my new square tube exhaust
system to check the bends and clearance on the motor mount.   The
material will be .063.   I don't know if it will hold up long enough
for a dyno run.   It might last a couple of minutes. I was  just going
to tack it together but the welds could be completed if you think it
would be worth the trouble.  This would be ready about the end of
January.    Are  you interested?
Jerry (Still waiting for electricity in the shop. )

Mild steel will work fine on a dyno. It is the temp cycling that causes it
to corrode and eventually flake off.

Paul Lamar
 
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