Ceramic coatings

[Alpineandy]

Anyone tried this stuff?
Is it expensive VHT paint or more?
www.racestuff.co.uk/70040/info.php?p=8&pno=0

[catso]

I know of a few people that have applied it to bike exhausts, mainly because it, supposedly, reduces the heat given out from the pipe.
Some people reckon that this will increase gasflow speed and therefore power, like exhaust wrap, but I think they mainly do it for the looks.

[chuntington101]

sounds like similar stuff to what the guys in the US use! its designed to reduce radiating heat form the exhaust! a good idea to reduce underbonnet temp, esp. on turbo'ed engines! also the idea is that on N/A applications you keep the heat (and thus the energy) in the gas thus helping scavaging and thus making more power! i think you would gain more power form lower under bonnet temps though!

thanks Chris.

[eliot]

Getting it to sick to your manifolds may be an issue though. Ive got POR15 on my headers, takes the heat ok - but falls off in big flakes where it didn't stick (yes, i degreased it etc)

[steve_D]

Quite a number of Ultima have ceramic coating.
For best affect the inside of the headers should also be done.
The pipe should be chemically cleaned first if you want the stuff to stay on.
Does work though and stays looking nice.


Steve


>> Edited by steve_D on Friday 11th November 23:25

>> Edited by steve_D on Friday 11th November 23:26

[victormeldrew]

Blimey, that does look good.

[Alpineandy]

steve_D said:

Quite a number of Ultima have ceramic coating. For best affect the inside of the headers should also be done. The pipe should be chemically cleaned first if you want the stuff to stay on. Does work though and stays looking nice.

Have they used this stuff or did they get it professionally done?

[steve_D]

The product is cermachrome (sp) and was proffesionally applied.
A number of owners grouped together and got a deal.

Steve

[spool]

Ceramics applied correctly works like a charm.

Ever since the Skunkworks made the SR-71 (with its very special heat responsive structure)
the industries that deal with high heat and its pros and cons have been stedily getting better.

However. To plan a build really good is adamant to its success.
Some things can benifit from properly used hotfilms/or the likes.
Every engine does not need this.

Its also not a "do it yourself" hobby. At least not in my book.
I am a fan of this tech to a very high degree.
But I have also researched it for many years now on the web and elsewhere.

A good layout in the engineroom and under the car is just as important, more so actually.
You can apply gold to a turd. Its still a turd. So the first job is to find out if its
the real shit you need, or can you get by without it...

[rev-erend]

Crematic coating can also be used inside engines..

but areas that are not coated of flake off will become
heat spots - so nice area for pre ignition.

[v8 racing]

I use ceramic coatings on quite a few of my race engines components, just by ceramic coating will give more power generaly around 5%, however if you build the engine to run with ceramic coatings you can see increases of upto 15% cost is around £900 for an 2 valve per cylinder v8 but well worth it

[stainless_steve]

v8 racing said:

I use ceramic coatings on quite a few of my race engines components, just by ceramic coating will give more power generaly around 5%, however if you build the engine to run with ceramic coatings you can see increases of upto 15% cost is around £900 for an 2 valve per cylinder v8 but well worth it

How long would the coating last?

[v8 racing]

The only failure i have had was years ago on the valves, it was chipping on the edges, what i do now is machine a 2 though recess on the face of the valve upto 20 though to the edge and it works great, no problems since

[stainless_steve]

Are all the parts coated,and if so how does this affect balancing


thanks for the info

[v8 racing]

The bits i coat are the piston crowns but they also put a silicons coat on the skirt to reduce drag, the valves the head chambers the ports both inlet and exhaust and inlet manifolds, you can do the cam followers but i found no gain in doing this just a lighter pocket!! the balance is fine as the coating is only about 2 though thick and you get more carbon than that after a few miles, dont forget to run a much cooler plug though or you will just melt it

[chuntington101]

yeah, i read an article on coaings. some even coat the whole combustion chamber with a thermal barrier, and the intake and exhaust ports. then they apply a sell lubricating coating to the skirts. this coating bascially has a really low coaficent of friction. they also coat valve springs big end and main bearings , crank (reduce windage) conrods (for the same), basically anyhting to reduce friction, apart fro mthe bores!!

finally you can use a coating to actulay reduce the temp of things (kinda pulls the heat away) and you use that on the block.

its all in the hotrod article.

thanks Chris.