Team7
New Reader
4/28/24 10:24 a.m.
I've got a turbo track car that I do track days with, so 20min stints. I recently had the turbo hot side and exhaust manifold ceramic coated. I'm wanting to ask if it's a good or bad idea to additionally wrap those pieces with heat wrap. Obvious reason is additional heat management but it's also to protect the coating from chipping when pulling parts. Thanks!
What problem are you trying to solve? Just chipping coating?
Back in the stone age, wrapping plain (not 409 CRES or anything remotely fancy) steel headers was one way to mitigate radiant heating of everything in range at the cost of greatly accelerated corrosion of the header. The same physics and chemistry applies to a ferrous casting. Ceramic coatings now do a far better job of insulating without the corrosion & resulting lifespan reduction. I'm not sure what would happen to a cast part that was both coated and wrapped long-term, but first guess is that the coating may be overcooked and not last as long. Maybe check with the coating supplier to see what their recommendation is.
In my experience, the old-school white ceramic coatings are pretty fragile and chip easily, but the newer silvery stuff is much more durable. It can be scratched like paint and can be overcooked, but typically doesn't flake.
Team7
New Reader
5/2/24 10:11 p.m.
Thanks so much for the reply. I'll ask the company I used to coat it. Embarrassed to say I didn't even think of that.
What I was trying to solve is partially chipping but also two heat management solutions is always better than one right?
Team7
New Reader
5/7/24 10:45 a.m.
Just to close the loop the place I used to coat the turbo hot side and exhaust manifold gave me an emphatic no wraps, no wraps.
Mr_Asa
MegaDork
5/7/24 11:01 a.m.
If you're worried about chips while pulling parts, you can always zip tie a towel to everything when you go to pull something? So long as the engine is cold and you remove the towel when you finish it should be fine.