Reply to "Sticky #4: Pantera Exhaust Systems"

quote:
Originally posted by ehpantera: I think, as regards thermal coatings, you get what you pay for.............I don’t think it is even fair to compare the two products anymore because
Jet-Hot is catering to a different market than Swain coatings..........Bottom line, Great looks = Jet-Hot, Great heat retention= Swain White Lightning coating.


I had actually used Swain a long time ago but not for header coating. Definitely a high performance barrier coating. They cannot coat internal diameters of long, or winding tubes. I contacted them again to confirm this was still the case. Upon reflection, I dont think it makes any sense to use a cosmetic coating like Jet Hot on the interior. The Swain site caused me to revisit some heat transfer fundamentals and they are correct, there is not much that a .002" thick paint based coating can do in this regard especially considering the minority composition is actually cermaic. It does do a good job as corrosion, heat resistant, cosmetic coating.

The stainless will be somewhat better about lessening heat imparted to the engine compartment, this will easily be more than offset by the additional area of the 180s. Though I'd like to reduce engine compartment temps I dont think I can get myself coat the exterior of the stainless in the Pantera. It's more of a street/show car than a track car. My GT40 on the other hand may be a different story.

Best,
Kelly
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