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Ceramic coated turbine housing + heat blanket=decreased longevity?

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Old 12-31-06, 10:43 AM
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Arrow Ceramic coated turbine housing + heat blanket=decreased longevity?

I've searched and read the numerous threads on this, and it's been stated that running a heat blanket with a ceramic coated turbine housing can lead to failure of the ceramic coating and/or decreased turbo longevity.

My question: how many people have actually experienced these problems? I'm looking for hard data here, not theories or friend-of-a-friend stuff.
Old 12-31-06, 10:49 AM
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lol me and you are in the same boat. I was going to go ahead and put mine on anyways. Don't really know how this would decrease turbo longevity any more than just a heat blanket or ceramic coating alone. I'm no expert though in this so I can't say much. Hopefully we can get some pretty good data here.

edit: only thing I remember is that guy that seemed to know alot of ceramic coating said the ceramic coat needs to breath or at least let the heat radiate out somewhere and if it can't then the coat will fail prematurely.
Old 12-31-06, 01:23 PM
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When using a heat blanket turbo coool down is very important. Those blankets are very good at holding/keeping the heat inside the turbine to the point where you can touch the blanket briefly after boosting without getting burnt.
Cool down is a must or you will cook the bearings/seals etc.
Old 12-31-06, 02:29 PM
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I have ceramic coating on my turbine housing with a heat blanket boost logic sells
the nice gray ones,,and I have no issues with my ceramic coating coming off or hurting the turbo. My manifold is ceramic coated as well.
Old 12-31-06, 07:20 PM
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so how long have you been running it like this? Thanks for the info.
Old 01-01-07, 01:38 AM
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Recently, I had my exhaust manifold, downpipe, and related wastegate piping ceramic coated inside and out. I held back from getting the turbine coated and opted for a heat shield instead. I can tell you that the ceramic coating I got is thick enough where it would interfer with turbine wheel clearances, which is the main reason I didn’t get it coated. The turbine is now the only piece you can see glow at night, where before the whole manifold would glow. I can post pics if you guys want
Old 01-01-07, 12:44 PM
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Sure, pics would be nice.

I had my dp, mani and turbine coated, but only on the outside. I have a turbo heat blanket and 100 feet of heat wrap, but am not sure if I want to use them.....
Old 01-01-07, 01:18 PM
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I did some research on this a while back and found lots of theory and no empirical data. The thing to consider is that a turbo manufacturer will void your warranty if the housing was coated. I personally called Turbonetics and was given the theory that coatings and blankets lead to increased heat transfer to the chra and heat is a major degradation factor and cokeing of the oil on the shaft then starts to build up. They recommended if using a blanket and/or coating, then water cool the chra. The best practice is heat shielding and water cooling. I found lots of discussion on this in the aus rotary web site.
Old 01-01-07, 01:35 PM
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Originally Posted by hondahater
so how long have you been running it like this? Thanks for the info.
about 4K, I have the downpipe wrapped as well
Old 01-01-07, 02:41 PM
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pics

here are some shots.
You can see how the coating has changed color in some areas...it used to be dark black everywhere.
Attached Thumbnails Ceramic coated turbine housing + heat blanket=decreased longevity?-img_0534.jpg   Ceramic coated turbine housing + heat blanket=decreased longevity?-img_0535.jpg   Ceramic coated turbine housing + heat blanket=decreased longevity?-img_0536.jpg   Ceramic coated turbine housing + heat blanket=decreased longevity?-img_0537.jpg  
Old 01-01-07, 03:50 PM
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Originally Posted by III Gen X
I did some research on this a while back and found lots of theory and no empirical data. The thing to consider is that a turbo manufacturer will void your warranty if the housing was coated. I personally called Turbonetics and was given the theory that coatings and blankets lead to increased heat transfer to the chra and heat is a major degradation factor and cokeing of the oil on the shaft then starts to build up. They recommended if using a blanket and/or coating, then water cool the chra. The best practice is heat shielding and water cooling. I found lots of discussion on this in the aus rotary web site.
I've heard alot of people say the same thing however I've also heard the argument against this saying that it is better to coat and or cover your turbine housing and potentially degrade the life of the turbo rather than heating up the engine bay causing all sorts of damage to wiring and engine due to very hot iat due to uncovered turbine. They also say that while yes it does degrade the turbos life span it's not by that much meaning your turbo will still last a long time.
Old 01-02-07, 05:33 PM
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Talking

Originally Posted by hondahater
I've heard alot of people say the same thing however I've also heard the argument against this saying that it is better to coat and or cover your turbine housing and potentially degrade the life of the turbo rather than heating up the engine bay causing all sorts of damage to wiring and engine due to very hot iat due to uncovered turbine. They also say that while yes it does degrade the turbos life span it's not by that much meaning your turbo will still last a long time.
heating up the engine bay??? hot very iat's??? Not on my ride!!! (lol) But seriously, you make a good point, and not everybody wants the looks and hassles of a vented hood.

Old 01-02-07, 07:34 PM
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I've heard people say that if you only coat the outside of a tubular piece (tubular manifold or downpipe) that will trap in a lot of heat, and to coat it both inside and outside.

not sure how this is w/ cast iron as cast is pretty resilient to high temps, but it still heatsoaks more w/ coating on outside and not both inside and outside.

this is just hearsay and theory though.

I'm coating my downpipe, turbine housing and manifold inside and out. well, not sure if inside and out on the turbine housing, but i think so.
Old 01-02-07, 08:52 PM
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Originally Posted by III Gen X
heating up the engine bay??? hot very iat's??? Not on my ride!!! (lol) But seriously, you make a good point, and not everybody wants the looks and hassles of a vented hood.

nice ride! I would definatley sport that hood if I had an fd
Old 01-03-07, 08:22 PM
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I ABSOLUTELY HATE when you have a nice long post going on and you submit to only see the error page!!! anyway i'll start over.

i have also heard that coating or adding a blanket to a turbine housing will lead to bearing failure. reason stated was that the coating or blanket insulates/insulated extreme amounts of heat that is translated into the oil in the turbo. that seems to be easy to see and understand. yet i believe if you allow a proper cool down period ( as you already should) that the heated oil will be brought out to the pan and oil cooler and abviously allowing cooler oil to be fed back in.

i have my manifold and downpipe wrapped. in addition i have the strut tower/chassis and the lower intake manifold coated with heat reflectant barrier. im very sure it helps keep heat soak to a minor case. plus it looks pretty

greg what blanket are you running from boost logic? i assume its the t6 right? how does it fit and how far down does it go on the housing? im asking cause i was very determined to have the manifold and turbine housing ports centered for flow. yet it allows my housing to be against the chassis at either the base where the flange is or the lower radius. im not sure cause i really cant see. let me know as i would like to keep some more heat out of the bay. i cant wait to see mr wilson

-Lance
Old 01-03-07, 10:50 PM
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Originally Posted by mono4lamar
I ABSOLUTELY HATE when you have a nice long post going on and you submit to only see the error page!!! anyway i'll start over.

i have also heard that coating or adding a blanket to a turbine housing will lead to bearing failure. reason stated was that the coating or blanket insulates/insulated extreme amounts of heat that is translated into the oil in the turbo. that seems to be easy to see and understand. yet i believe if you allow a proper cool down period ( as you already should) that the heated oil will be brought out to the pan and oil cooler and abviously allowing cooler oil to be fed back in.

i have my manifold and downpipe wrapped. in addition i have the strut tower/chassis and the lower intake manifold coated with heat reflectant barrier. im very sure it helps keep heat soak to a minor case. plus it looks pretty

greg what blanket are you running from boost logic? i assume its the t6 right? how does it fit and how far down does it go on the housing? im asking cause i was very determined to have the manifold and turbine housing ports centered for flow. yet it allows my housing to be against the chassis at either the base where the flange is or the lower radius. im not sure cause i really cant see. let me know as i would like to keep some more heat out of the bay. i cant wait to see mr wilson

-Lance
I am actually running the smaller one, but the T6 would probably fit better, but I think the T6 will wrap all the way down too far so you might have frame rail clearance issues. I also have the Xcessive LIM so its even tighter of a fit, thats why I am using the step down from the T6.
Old 01-03-07, 11:09 PM
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Originally Posted by crispeed
When using a heat blanket turbo coool down is very important. Those blankets are very good at holding/keeping the heat inside the turbine to the point where you can touch the blanket briefly after boosting without getting burnt.
Cool down is a must or you will cook the bearings/seals etc.
So, bassically use a turbo timer to allow enough time for proper cooldown and you shouldn't have to worry about it then?
Old 01-04-07, 07:07 AM
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thats what it's looking like. Thats been the general consensus with cooling down dry chra's for as long as I can remember. One thing though, we are straying off topic, this is about if the ceramic coating on a turbine housing will be compromised if you use a heat blanket at the same time.
Old 01-12-07, 09:34 AM
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just talked to andy with world wide racing. He said that they ceramic coat thier housings as well as if they have a blanket they will use it. He also said he wrapps the manifold as well as ceramic coats them. He said he has had no issues.
Old 01-12-07, 05:35 PM
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Originally Posted by hondahater
just talked to andy with world wide racing. He said that they ceramic coat thier housings as well as if they have a blanket they will use it. He also said he wrapps the manifold as well as ceramic coats them. He said he has had no issues.
Interesting. How long has this place been in business? how long have them been using blankets in conjunction with the ceramic coated turbines housings?
Old 01-12-07, 05:51 PM
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rich,

i had a boost logic turbo blanket on my white s5 TII for about a year with no problems. the turbine housing was not ceramic coated, but i feel that if you have the turbo blanket you really dont even need to worry about the coating...
like what crispeed said, i could be cruising on the interstate with 38* of timing at 15:1 AFR's (read: hot EGT's) and i could pull over -mind you, the turbine housing was red hot underneath the blanket- and i could touch the turbo blanket and hold my finger on it and not get burned.
i had my downpipe wrapped and the blanket on my turbine housing and it worked wonderfully. i'd say the ceramic coating would only help marginally at best if you're planning on using heat-wrap/blanket stuff.
if i had to do it over again i'd use heat wrap on the downpipe and blanket on the turbine housing like i did before, and i'd get the manifold coated.
Old 01-12-07, 06:26 PM
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Originally Posted by jacobcartmill
rich,

i had a boost logic turbo blanket on my white s5 TII for about a year with no problems. the turbine housing was not ceramic coated, but i feel that if you have the turbo blanket you really dont even need to worry about the coating...
like what crispeed said, i could be cruising on the interstate with 38* of timing at 15:1 AFR's (read: hot EGT's) and i could pull over -mind you, the turbine housing was red hot underneath the blanket- and i could touch the turbo blanket and hold my finger on it and not get burned.
i had my downpipe wrapped and the blanket on my turbine housing and it worked wonderfully. i'd say the ceramic coating would only help marginally at best if you're planning on using heat-wrap/blanket stuff.
if i had to do it over again i'd use heat wrap on the downpipe and blanket on the turbine housing like i did before, and i'd get the manifold coated.
Thanks for the good info. My turbine housing is already coated, so I'm wondering if running the blanket along with the coated turbine housing is going to lead to problems down the road......
Old 01-13-07, 08:06 AM
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I haven't asked them those questions but I will next time. Here is a link to thier website. They tune mostly on microtech systems and seem very knowledgeable as most of the systems they setup and tune are high horsepower applications. If you look under videos they have a few cars they have tuned and/or built.

http://www.wwrturboinjection.com/
Old 01-13-07, 07:57 PM
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Hate to thread jack, but where are you guys getting your blankets. I've never been able to find a supplier besides eGay.
Old 01-13-07, 10:53 PM
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Smile

Originally Posted by Hyper4mance2k
Hate to thread jack, but where are you guys getting your blankets. I've never been able to find a supplier besides eGay.
http://www.gothamracing.com/catalog/...roducts_id=856


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