Been doing some research on the possible benefits of doing this to a F/I motor and have gotten some mix feedback. I wanted to get a little more feed back from people here who may have had it done or know more about it.

What I was interested in doing was thermal coating the piston crowns, chambers, exhaust valves, exhaust tracts, headers, turbine housing and turbine (once I decide on and purchase my turbo kit). From what I've been told, coating these parts will definetly keep the heat confined and also increase the performance of the turbo because of the minimal loss in heat to drive it. For the downside, I was told that doing the piston crowns and chambers will also raise temps in the cylinders which could lead to higher charge temp. This could lead to detonation and possible pre-ignition because a majority of the heat that would normally be absorbed and transferred by the piston to the cylinder walls would no longer be happening.

All said and done, it was suggested to just do the valves, exhaust tracts, header and turbine housing and move on. I'm looking at it for the point of transferring as much heat to drive the turbo as possible with ver minimal loss.

Any feedback/suggestions/opinions from the board members here?
Thanx

 

I had the top of my custom CP pistons thermal barrier coated. They just came back yesterday. The block is being put together next week, so I don't have any comments just yet.
The NASCAR motors do the same piston coating. I wouldn't spend the money on coating all the other parts. I'll keep everyone updated as soon as the build is done.

Wes

 

i'm going to jethot my intake tube and SSV intake manifold and use a thermogasket with it - along with a vented hood

 

I have never believed in heat coatings for street driven cars, primarily becuase they always wear off, given enough miles. On race engines, that see 20 passed down the track, and then are town down, they have their benefit.

Instead, I prefer the moly or dry lube coatings of the skirts, bearings, and other friction contact parts.

But every engine builder has their opinion, and I can respect that.

 

Well here's the "somewhat" hidden beauty of it all. Through our wonderful reduction in force / displacement program I was tranferred to a shop that applies this stuff to turbine engine parts. They use plasma spray to apply it, the coatings can be machined and the only way to remove it is by high pressure water stripping (55,000 psi).

 

BTW, I was refering to combustion chamber coatings.


I am a big believer in heat retention coatings for turbo housings, manifolds, and other parts "outside" of the combustion chamber.

 

Gotcha... Well, I guess I'll just stick with what you mentioned and probably do the exhaust ports as well.
Thanks