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Re: Exhaust header insulation

To: "'spridgets@autox.team.net'" <spridgets@autox.team.net>
Subject: Re: Exhaust header insulation
Date: Mon, 20 May 2002 09:32:51 -0400
Cc: "'unltd@aloha.net'" <unltd@aloha.net>
I'm running a maniflow LCB header and had some serious issues with vapor
lock.  I used header wrap (the thick variety works fine and is supposed to
cut radiant heat more than the thin version) and presto, not one problem
with vapor lock.  I must say that my experience with it has been good.  If I
were doing the setup again, I would have it ceramic coated the header at
Swain Tech (Jet-Hot and HPC'c coatings are not as good) and see if that cut
the temps enough, if not then use headerwrap over the coatings.  My
experience is that the wrap does cut down radiant heat, how much I don't
know, but enough to solve my problem.

The one significant downside to header wraps is that they typically do
impact header life.  But between the choice of dealing with vapor lock or
replacing headers every 10+ years, I'll fork over the relatively minimal $$$
when the time comes...

Jackson Zimmermann
jzimmerm@albemarle.org
'64 A-H Sprite

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