Ceramic coating turbo

iroc_g · 01-29-2009

I was wondering if anybody here has there turbine housing ceramic coated. I'm thinking about having it done, but I'm trying to figure out if they do the inside as well, or if it would interfear with the blades.

Also, anybody local worth getting a quote from?

spoolin d dub · 01-30-2009

My turbo is ceramic coated. The outside is the only part that gets coated. Never coat the inside. Make sure the place you go does a good quality ceramic coat to get the full benefits of holding in all that heat to help spool up.

Here's a pic.

http://i307.photobucket.com/albums/n...o/IMG_0085.jpg

Swifty1638 · 01-30-2009

mine is ceramic coated too..didn't even look if the inside was done though..i just slapped her together.

Super Bleeder!! · 01-30-2009

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.

blackrosenova400 · 01-30-2009

Its best to leave anything out of the intake tract. EOS.

Swifty, where was yours done?

spoolin d dub · 01-30-2009

You don't want to coat the inside of the turbine housing to prevent damage to the wheel. At first I wanted the inside coated also but Comp Turbo advised me not to do it.

**Kracka** · 01-30-2009

Contact MAP; they have a local guy who does really good porting/coating work. You'll want both the inside and outside coated.

niterydr · 01-30-2009

Quote:

Originally Posted by Kracka

Contact MAP; they have a local guy who does really good porting/coating work. You'll want both the inside and outside coated.

Yeah that is duder (Bob).

Bob did all the coating of my setup and anything we had done for a customer at LSE as well, good guy and does great work.

+1 for having the outside of the turbo coated only. I was concered about keeping the engine bay temps down and did not want to have coating find itself in my turbine wheel.

turbotalon1g · 01-30-2009

I had the outside of mine done. I don't remember if i got the inside done. I want to say that I didn't.

But I can say that I agree a little with super, he makes a lot of sense and is agreement with what I have been reading up on about metals.

How would the coating get on the wheel?

oh yeah +1 for bob
He is working out of MAP now.

**Halon** · 01-30-2009

Quote:

Originally Posted by blackrosenova400

Its best to leave anything out of the intake tract. EOS.

Swifty, where was yours done?

Turbine Housing = exhaust not intake

As Floppy said, if all you coat is the outside, you are trapping all that heat in the metal, and not leaving it a nice escape route do to the ceramic coating on it. Coating it inside as well, will give you a barrier helping to prevent some of that heat from ever even entering the metal. Go read up on a lot of the coating forums, and you'll see a majority of them are going to recommend coating both inside and outside.

I also had mine done by Bob at Form and Function. As others have said, he works out of MAP's shop now which is nice and convenient. I had both my manifold, and my turbine housing coated with his Black TurboX coating, inside and out. I definately recommend him.

If you do a search on here for "Ceramic Coating", you'll probably run into the thread I started about a year ago on it. You'll see my pictures in there.

sleepydsm · 01-30-2009

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 · 01-30-2009

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** · 01-30-2009

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 · 01-30-2009

Quote:

Originally Posted by Super Bleeder!!

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 · 01-31-2009

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

spoolin d dub · 01-31-2009

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

turbotalon1g · 01-31-2009

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** · 01-31-2009

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 · 01-31-2009

Quote:

Originally Posted by blackrosenova400

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** · 01-31-2009

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