Ceramic coating turbo

[sleepydsm]

I'm sure the clearance between the exhaust wheel and the turbine housing has plenty of room for the .0005" per side that coating probably adds.

So I can go to MAP and this guy Bob works through them now? I will be getting all my hot parts coated.

[iroc_g]

I have read threads about people having the coating flake off in the housing. That is my main concern, as well as the clearance issues.

[Halon]

Yeah he's at MAP. Just go there and talk to him.

As for the stuff flaking off, what kind of coating was is that was flaking off? And did they coat it properly? There's a bit more to it then just slapping on some paint. Things like part cleanliness, pores closed/open in the metal, curing. Just because some people have had it flake off, I wouldn't make a blanket judgement about it. You have no their exact situation. Dig deeper. I'm pretty sure Bob warantees his work, so your best bet would just be to call up MAP, talk right to him and have him answer all your questions. Ask him what he recommends, and ask him if he's EVER had it flake off in any of his customers housings. And if it did, would he stand behind his work.

I know has a screen name on here, wonder if he'll post up in here any info he has.

[blackrosenova400]

Why wouldnt you coat the inside? If the inside was coated the heat would have less of a chance of being dumped into the turbine housing metal.

All coating the outside of the housing will do is make sure the turbine housing cant radiate heat into the engine bay, because most of the heat will be trapped inside the material.

imho, from a logical standpoint if you are going to coat it at all coat the inside.

input from others welcome.

I was quoting super bleeder and missed it said turbine housing.

Regardless, you got a ton of heat and pressure depending on your boost levels so I would have to say not a good idea. Anything in the intake tract or the exhaust tract that has has an opportunity to become free is not a good idea to have. Besides if the outside of the turbo is coated, there is no use of coating the inside, wheres the heat gonna go besides through the exhaust turbine!

[iroc_g]

I'm gonna call a few coaters next week and seewhat they have to say.

[spoolin d dub]

Are you trying to gain power or just keep the temps under your hood down?

[turbotalon1g]

I did it to keep temps down, bob I believe has done multiple tests and has found power gains on ceramic coating, of course the more power/heat you make the more the difference was seen.

Thanks for putting up this thread reminds me I need to get mine done.

[Kracka]

Just go talk to Bob at MAP, he is a very smart guy and really knows his stuff, I was quite impressed when I first met him.

[blageo23]

I was quoting super bleeder and missed it said turbine housing.

Regardless, you got a ton of heat and pressure depending on your boost levels so I would have to say not a good idea. Anything in the intake tract or the exhaust tract that has has an opportunity to become free is not a good idea to have. Besides if the outside of the turbo is coated, there is no use of coating the inside, wheres the heat gonna go besides through the exhaust turbine!

There is a use for coating the inside. Like what was said before, When you coat the outside then the heat get into the metal but has to good way of releasing the heat. Whereas if you coat the inside then the heat never gets a chance to see the metal it would just flow right on though and out the exhaust.
As far as it flacking off. What, is a tiny flake of ceramic coat going to mess up your turbine wheel? Probably not. And as what was said before, If it flakes off then it was a crappy ceramic coat/job in the first place and probably didnt do much for you anyways.

[mx3twinturbo]

We coat the inside and the outside of our hot parts,
it will keep your hot parts from oxidizing quickly, basically lowering the chances of cracks, and keeping the metals structure intact,
A lot of racers using tubular headers, when coating just the outsides will only get half a season out of the headers before the just "decompose" under the ceramic, and crack apart. thats why you coat the insides as well.
Blageo23 is correct about the coating flaking off, if its done properly it shouldn't ever flake,

Jesse-
Primo Performance
612-750-3123