CCPcoatingscom

"Bright Ceramic Coatings" are VERY effective thermal and corrosion barriers that are still used in aerospace turbine applications as they were 25+ years ago when they first came on the scene in automotive applications. The biggest problem with their use, is it's MIS-USE. Jet Hot being the biggest offender, most coaters either don't know or don't care about its temperature limitations. ALL bright ceramics are rated at approx 1000F - 1100F metal temp which translates to about 1300F - 1700F. That being said places like this routinely coat hot side turbo or supercharged components when these applications are clearly outside of their temperature ranges. Doing so leads to an almost immediate dulling and continued elevated temps lead to coating failure. Whereas if they had used the proper high temp ceramics from the start it would be a non issue. This particular coating can be damaged by tuning scenarios that are too rich or too lean. So again, unsuspecting customers get a new set of headers, fire up an untuned engine or proceed to the dyno and promptly smoke teh coating on a new set of headers. With this p[articular coating tuning should be done before coating. Better yet, they can use a high temp ceramic rated at 2000F+ and its a none issue....

"Shut up, you're being infantile", ???? Well that's much more mature. What YOU said quite clearly is that SS is so thermally efficient that it doesn't require any additional thermal barrier. Also, it won't degrade like mild steel. Define degrade? Clearly it's not going to corrode away like mild steel would after numerous heat cycles , but it will most certainly oxidize and look like hell rather quickly. I've just shown you 3 normally aspirated examples of uncoated SS components and they look like hell. The turbo stuff looks even worse. Further, you have no idea why Bloz is even entertaining the idea of ceramic coating his headers. You've made the assumption its for thermal management concerns when it could be purely for aesthetic purposes, If it is for thermal management concerns, your heat shield does nothing for reducing temperatures or making the headers more thermally efficient, it merely insulates the radiated heat from affecting a particular part or area, i.e. delicate wires or electronics. As for temperature, its rather pointless to regurgitate the specific thermal properties of any given grade of SS or mild steel in that you have no idea what material he is using and what the wall thickness is. The most thermally efficient SS is going to be less effective than the lesser performing mild steel if the mild steel has a significantly thicker wall. As a rather large generalization, there is no argument that SS is more thermally efficient, than said mild steel, BUT......... the problem with SS is that once its hot it acts like a huge heat sink much like a cast iron manifold. It retains and radiates a significant amount of heat off of it surface. In 15+ years of dealing with exhaust systems ranging from OE manifolds to 5000HP plus twin turbo shoot out cars I have never heard from anyone that changed from a mild steel exhaust to a SS exhaust and said their under hood temps went down...... On the contrary, guys with mid-engine cars like the earlier mentioned Ferrari F430 and panteras see an IMMEDIATE increase both underhood / cabin temperature from upgrading to SS exhaust....

SS doesn't radiate heat? First off, the comparison between SS and mild steel would be contingent on alloy and wall thickness. Either way, you may want to re-calibrate your data acquisition equipment again. A / B test a set of mild steel and SS headers and let me know which one burns the shit out of your hand when you grab it 20 minutes later...... Below are some samples of some of your "none degrading, radiant heat impermeable, stainless steel" headers. Obviously these oxidized and turned every color in the rainbow because they run so cool..... LMAO.... I almost forgot, these examples are all NORMALLY ASPIRATED. I wonder what happens when you throw a turbo or supercharger in the mix? Does it become even more thermally efficient? 1) $10,000, FULLY POLISHED 304SS exhaust from a 2007 Ferarri F430 409SS street header from a 5.3 sbc BRAND NEW kooks 409SS sbc headers after only 5 hours of a 750F bake

A blowhard indeed. This is what NON High Temp Ceramic looks like in Supercharged and Turbo applications and a Swain tech application for good measure.....

If its a normally aspirated application,1500F material would suffice. ALL supercharged or turbo charged applications require a High Temp Ceramic which will be rated at 2000+. Natuarally this excludes ALL bright / polished ceramics as well in that they are only rated at 1000F - 1100F metal temp which translates to 1300F -1700F EGT temps......

LOL, You are correct. I'd have to call BS on that one. I don't care what sound it makes when you hit it with a wrench......... Scavenging in a 4 stroke scenario would involve pressure waves / back pressure as you've addressed. I can't see where sound waves would have any affect. As for NASCAR, I think they have rules prohibiting such coatings. If you need validation for coating both SS and inconel, look at F1 cars that use numerous types of coatings.....