My understanding is that Jethot is coated inside and out. John
John c Kahoon wrote:
> Ideal would be some sory of White high temp coating INSIDE the header.
> This would cut down on the heat getting to the steel and engine bay.
> The reduced header temp would reduce the thermal cycling and make the
> header
> last longer, and the fringe benfit would be lower engine bay temps.
> Wrapping the header would trap the heat in the header.
> Stainless is the best choice for dealing with the thermal cycles.
> So , white high temp coating inside a stainless header with a, Black high
> temp.
> coating on the outside would give you the best possible senerio.
>
> john.kahoon@juno.com
> 71 midget
>
> On Tue, 27 Oct 1998 09:22:27 -0800 "Mike Gigante" <mikeg@vicnet.net.au>
> writes:
> >The header wrap is very effective (more effective than the coatings)
> >at
> >reducing engine bay temps.
> >
> >However, if you have mild steel header they'll be rusted out very
> >quickly.
> >
> >The higher operating temp (of the headers) also appears to cause
> >cracking
> >of welds/joints.
> >
> >I think that the header wrap would be fine if you have the coatings -
> >the
> >coating will prevent the corrosion problem. Not sure about the
> >cracking
> >problem.
> >
> >Mike
> >
> >-----Original Message-----
> >From: ENRIQUE CLAURE <span@datacom-bo.net>
> >To: mgs@autox.team.net <mgs@autox.team.net>
> >Date: Monday, October 26, 1998 1:23 PM
> >Subject: was ceramic coatings
> >
> >
> >>Hi folks, as I was reading through the ceramic thread I recall seeing
> >an
> >add
> >>in my Car Craft Magazine of a sort of tape-on cloth that you wrap
> >your
> >>header with. From what I recall they have real stats on their product
> >and
> >to
> >>me the thick tape seams to REALLY work. I have friends that race and
> >they
> >>swear that you can tell the temp is lower. I will let you know more
> >about
> >>the product. Enrique
> >>
> >
> >
|