Hi Tadek,
my garage buddy is running his BN2-M since 15 years with heat wrap around the
tubular exhaust manifold. He even went racing with it to Nuerburgring etc. He
faced absolutely no issues. On the other hand, the fitting of the heatwrap
stopped the random fuel evaporation on very hot days.
I go for heat wrap.
Regards
Thomas Willig
-----Urspr|ngliche Nachricht-----
Von: Tadeusz Malkiewicz [mailto:tadeusz.malkiewicz@plusnet.pl]
Gesendet: Donnerstag, 26. August 2010 21:11
An: healeys@autox.team.net
Betreff: [Healeys] Heat wrap vs. ceramic coating
Hello all,
I have done some research on this and I found that the heat wrap has 2
drawbacks:
- if you isolate your manifold and the down pipe continuously you may end
up with a burned pipe, as the heat that is traveling through the pipe has
nowhere to escape, in result heating the exhaust system to a point where it
may burn out. A solution is to wrap it intermittently, leaving gaps.
- the heat wrap (although flame retardant) may start burning.
Ceramic coating is better in both cases, although more expensive. Ceramic
coating may though look more original on your car if you choose the right
color..
There was an article comparing the two - I have it and will post as soon as
get back home.
With the heads we have, where exhaust & inlet are on the same side of the
engine I would not use heat wrap.
Best, Tadek
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