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Bob,
No doubt that wrapping the pipes will lower heat under
the cowl, however, it does make more difficult to detect cracks at an early
stage.
Several years ago, a Velocity had a Powersport 13B power plant
installed and went down (fortunately without injury to anybody) and the cause
was a cracked header pipe that leaked hot exhaust gas and apparently caused the
fuel line to go into vapor lock. The engine ceased to delivery sufficient
power and the bird came down.
The accident was traced to a cracked header pipe of an exhaust
system which did have the tubes wrapped. Apparently the evidence
indicated the crack had developed over a period of time to the point of causing
failure. It was certainly implied that the wrap may have been the reason
the crack was not detected in time.
No trying to sway you one way or the other, but my pipes are
not wrapped. I tried it on a Honda civic I turbocharged back in 1976 and
found the tubes deteriorated very quickly. Just another point of
view.
Ed
----- Original Message -----
Sent: Sunday, November 11, 2007 11:04
AM
Subject: [FlyRotary] Re: Burns Stainless
Drag Muffler
dunno.....kind of a dilemma huh. not like im going to hear a
leak
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