Gary Wolf wrote:

Paul,
   The other day one of our club members told me the old chestnut about
exhaust wrapping creating more horsepower by holding the heat in the pipe. I
explained that the origin of that myth was in Nascar, where the carb air had
to come from under the hood and the hp was increased by lowering the
under-hood temperature.
   Since the use of this tape began, I have been seeing lots of exhausts
(mild steel) that have a zillion spider-web cracks from the absorption of
carbon into the 1010 steel until it becomes brittle. There is little point
in welding them up as they continue to propagate.
   My question is: does this happen with the common stainless steels as well?

                                                        Gary Wolf

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