What wall thickness was the 321 stainless exhaust tubing Keith?
Paul Lamar
Keith Holm wrote:
16 gauge, or .065".
Keith Holm
Powersport Aviation
Wow! .065 thick 321 and it still broke in only four hours. Hard to believe.
Must have been a defective weld or he cantilevered the entire ridged exhaust
system off the flange with no braces and it vibrated at a sympathetic
resonant frequency. Either that or that PowerSport PP 13B is one powerful
motor :)
Tracy got 650 hours out of this .035 thick SS muffler.
Paul Lamar
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