Brian,
I do not want to recommend for or against exhaust wrapping, because I have
no experience with it, but my quick comment is this:
I would rather not reduce the air cooling of the exhaust pipes. Have you
seen the photo from Rotax' engine test bed, at max take-off condition?
Frightening, if you did not know that it is designed to take it: The
exhaust pipes are literally glowing red!
After I saw this, I always think about it at lift-off and reduce to climb
setting as soon as it is safe.
My personal view is therefore to reduce the radiation that hits the carbs
and rubber hoses as much as possible, rather than trying to prevent the heat
---From escaping its source. Shielding the carbs and the hoses has only
positive effects, and weighs very little.
Regards
Svein
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