Subject: Exhaust system materials
From: ACRE
Date: 1/4/2004, 10:43 AM


     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
 
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