Wow, Very nice! I would love to see the aftermath when you rip your engine apart again. Where did you get it coated and how much per rotor?

During combustion, does the ceramic coating absorb the heat or does it deflect elsewhere?

 

WOW.

It looks like Chrome. I always thought ceramic coating was white for some unknown reason.

 

Way to go bonehead. Now you made them too damned pretty to be hidden inside of the engine. But seriously, what are the bonuses of doing this.

 

I may be mistaken but I think he had it done so that he can use it as a paperweight.

 

IS this just a Myth or truth, Ceramic coated Apex seals ??

Also i would think that if the rotors are ceramic coated, meaning much smoother, that there would be less friction in turn making it possible for the Engine to reach higher rpm. Is this a correct assumption.

 

Ceramic apex seals are out there, they are an extremely expensive alternative though and they have huge benefits and also some disadvantages too. I'm talking a couple hundred dollars ... PER SEAL.

I have heard people talk about ceramic coated steel apex seals, but I think it's just some talk so far, and I don't know of any in production.

Anyone else?

 

Most ceramic coating processes subject the part to high heat load, enough to take out the spring tension in the pins that hold the stationary gear in place. It looks from your photo that they treated the gear as well??? If so you should remove the pins and put in new ones as they would not be as strong as non heat effected ones.

If they have lost tension when the gear vibrates it will creep out and jam against the side plate.

this all depends on the process used to coat your rotors, most true ceramic processes uses very high heat which will destroy spring steel used in roll pins that retain the rotor gear. Maybe yours are treated differently? Some thing to check though before you put them in the engine.

 

Why did you not race clearance them before doing that? You know that the tips touch the side plates at revs above 8k and power levels over 500bhp....

 

Garfinkle has ceramic seals they have been out for several years,several people sell them ,cost is high $1500 to$1700 just check around many people run them.

 

two words:

$ Bling-Bling $

 

Rice, could you explain race clearancing with a little more depth? I've got my rotors out and might want to do this. How much do you clearance, ect...

Thanks man,
STEPHEN

 

How thin is the ceramic coat? Will it interfere with the tolerances and clearances of the various seals and springs? -- Tommy

 

Correct me if I am wrong but , isn't ceramic coating supposed to keep heat in (or out) ? , and doesn't a rotary engine loose about one third of its heat through the oil which is sprayed into the rotors ? , so wouldnt that coating prevent the efficient transfer of heat into the oil and keep it in the combustion chamber where it would either pass into the cooling system ( and maybe cause overheating ?) or be retained by the internal components causing thermal overload or be translated into more power ( more heat=more power) ?.

 

Translated into more power.

 

I have been speaking with HPC here in Australia and they in turn have been speaking with HPC in the states and as of yet have been unable to get back to me with the recommended HPC coat to use on rotor's for a turbo motor !!!! Witch one did you get done and was it recommended to you ??? IMHO you should have only got the combustion chambers them selves HPC coated as this is where all of the work is done. Although there are other types of coats available that have proven use full on piston engines that could be used on the sides of the rotor's ie metal to metal area's. Factory Mazda end plate / center plate faces are Teflon coated at the factory to help fill in any minute imperfection in the machining process too so this may also be worth further investigation !!!! In real life though I have seen NA bridge port motors used in the local production car category with there combustion chambers coated and with extensive engine dyno testing it has been proven that there is an increase in torque between engine that don't have it and engines that do have it ............... though there is still some debate as to where this heat load is being expelled to though the exhaust is looking like the most logical place for most of it.

 

Guys...he's pulling your leg. I think he would have replied by now if they were real. Besides, ceramic doesn't look like that anyway, not in the really high temp versions needed for something like this.
Michel

 

But what about the turbine wheel ? , there was a thread a while ago about wraping the exhaust manifold ,saying that if done on a rotary it causes the exhaust to be too hot causing the turbine wheel to melt , so how would this hot exhaust (caused by the thermal coating -since the heat cannot be absorbed
anymore by the oil through the rotor) affect the turbine ?

 

Its definatly something to concider even if he didnt get his rotors coated.

 

Ok lol

The lie: those arnt my rotors
The Truth: Those "ARE" ceramic coated Rotors
got it (pics)of a Japanese Tunning Garage site

 

ASSSSS!!

get AIm monkey!

 

Hey, I'm pretty sure the ceramic coating would crack in the compression stage..but I could be wrong, I'm not a ceramics expert.

 

That is still one pretty damn sexy rotor.

 

It has been done before. Usually ceramic-metallic that is thermal sprayed. Mazda did it on their R26B engine. It has been done on many piston engines too, with claims of more power.

http://www.techlinecoatings.com/Engine.htm