Benifits and purposes of coating engine parts

[gectek]

yah, but i wanted to see if the guy ben was talking about that does his coatings could get a good job done on my heads that i wanna get off here for the 3500, i want the valves and the combustion chamber coated, and i was gonna do that after i got them cryo treated. i just dont want the coating to flake or anything due to the increased surface density of the cryo treated heads and valves

[El_Diablo]

i highly doubt anything more than the normal wear and tear would occure

[X11_STE]

I was told by a company in arizona that you should have the machine work done first. To do it after would be difficult as the metal would have a different/ harder temper.

[gectek]

thanks for the info, ill prob get all the porting and milling done first, then get it treated and see if i like it, hopefully itll keep all the finish on the surfaces, then see if i can get them coated maybe

[geoffinbc]

I have a good article on treating heads,valves and piston tops in order to reduce heat transfer improving resistance to detonation and limiting the heat loses to the metal and keeping the heat in the combustion process.

I will re write it so it is not plagerism but the requied info is in tact. Brad let me know when you want it and I will get on it.

[Steevo]

I also frequent a few other forums that have the holy grail of parts treating. Such as cryo-treating after ceramic coating pistons. Cryo-treating rods, cranks, valves, guides and seats for the application that take them. One guy even treats his spark plugs.


Then again, 27PSI boost and 500+ WHP out of 2.2L, mebey he is right.

[gectek]

yah im lookin at cryo treating the head assy plus the lifters and pushrods, so maybe thatll help, idk if i wanna do the intakes, but doesnt seem like a bad idea, dont cost that much really

[gectek]

so what are a few places that you have found Diablo that offer the TiNitride coating?

[El_Diablo]

http://www.tincoat.net/

http://www.crystallumepvd.com/

http://www.brycoat.com/

[Juglenaut]

Any kind of coating that would keep heat out of the engine compartment is a benefit and will increase fuel detonation. However I am skeptical that a ceramic coating internally will yeild any long term benefits that would out weigh the cost of doing so either by HP gain or more MPG.

The simple fact is carbon and various other contaminates will deposit on the ceramic or other radiant barriers in colder areas and will deplete the reflectivity or radiant blocking coeffecient. The lowest it can go is around 66% reflectivity on most refective barriers even though most stock refective surfaces in a engine are eventually covered in a coat of carbon which will not only absord heat the valves and heads will dissipate heat soak into the engine componets and block, this concept has been around for a decade or more and applications have been applied.

Now in the long term, a ceramic or thermal reflective coating may help at first, however when carbon does eventually deposit and it will even on titanium. The benefit rolls down hill only to combat a over heated combustion chamber which could cause stock cylinder walls themselves to melt through. The reason now is the carbon which stock could dissipate the heat easily now has a thermal barrier in the way now it is possible that the carbon may burn off before a certain state of heat soak but other things need to be taken into consideration besides cryo'ing a head or block when it comes to heat dissipation engineering of a stock block.

If a person is in the habit of driving daily and not like a monster chances are the camber will not get hot enough everytime to burn off the carbon before it contaminates the ceramic and will eventually build up and may cause a engine melt down.

I can see coating some things, but coating everything possible to refect or retain as much heat in the combustion camber as possible will require rethinking the stock cooling system and heat dissipation engineering. I really don't think it is as easy as just coating everything or treating everything.