Is ceramic coating needed stainless headers
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
There was a thread on this forum not that long ago which had some hard data on this subject. If I recall correctly it showed a very significant improvement in underhood temps.
Any of you "search" ninjas out there able to find it?
Any of you "search" ninjas out there able to find it?
Le Mans Master
Joined: Sep 2006
Posts: 6,619
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From: Prattville Alabama
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Safety Car
Joined: Nov 2007
Posts: 4,537
Likes: 1,405
From: Bethesda MD
Here is the thread I was referring to... http://forums.corvetteforum.com/c6-t...t-coating.html
Race Director<br><img src="/forums/images/ranks/7k-10k.gif" border="0">
Joined: Feb 2001
Posts: 13,013
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From: HOME OF THE FREE. BECAUSE OF OUR BRAVE. Babylon NY
St. Jude Donor '06 thru '20
Another one for it's not really needed. But I have coated every header system and would not mount a set without being coated. I have been using Swain Coating for my need's. Over the winter the rest of the exhaust will be Swain Coated , cat's and midpipes.
Racer
Joined: Sep 2008
Posts: 312
Likes: 0
From: Odessa FL
To be honest, I have to say, the majority of headers we coat, are stainless steel.
IMO, coating is worth every penny. It is a must when you are talking mild steel headers, but even with stainless steel, it has its benefits. The biggest reason, is keeping the temperature down. By coating the headers, the majority of the heat stays within the exhaust, and does not radiate into the engine compartment. Also, the coating helps cool down the headers more rapidly.
We started some testing this week on the cool down times of coated headers vs no coated headers. Ambient temperatures are in the mid-high 90's right now, so we are talking worst case scenario here.
With coated Long Tubes on our 08 Corvette, the temperature at the hotest point right after a dyno pull was 650 degrees. After 1 minute it was down to 450 degrees, 2 minutes 350 degrees...
Bottom line, it really is beneficial to coat the headers, even if they are a high quality stainless steel.
IMO, coating is worth every penny. It is a must when you are talking mild steel headers, but even with stainless steel, it has its benefits. The biggest reason, is keeping the temperature down. By coating the headers, the majority of the heat stays within the exhaust, and does not radiate into the engine compartment. Also, the coating helps cool down the headers more rapidly.
We started some testing this week on the cool down times of coated headers vs no coated headers. Ambient temperatures are in the mid-high 90's right now, so we are talking worst case scenario here.
With coated Long Tubes on our 08 Corvette, the temperature at the hotest point right after a dyno pull was 650 degrees. After 1 minute it was down to 450 degrees, 2 minutes 350 degrees...
Bottom line, it really is beneficial to coat the headers, even if they are a high quality stainless steel.
Safety Car
Joined: May 2000
Posts: 4,829
Likes: 358
From: Albuquerque NM
I had coated headers on my C5, after 6 years they still looked like new. I put uncoated stainless headers on my C6 two years ago and while they aren't rusty, they look like crap. I just had them coated while they were off for a clutch swap. They look great and should for a long time.
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