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Ceramic coating vs. Exhaust wrap?

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Old Apr 28, 2006 | 05:57 AM
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Default Ceramic coating vs. Exhaust wrap?

Anyone have experience which would work keeping the heat in the pipes better and not in the engine bay?
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Old Apr 28, 2006 | 12:41 PM
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Well I can tell you to jet-hot a set of turbo headers it will be about $300, turbo housings are around 75 each when I got my quote for 2000+deg

I'm going to be using header wrap because I'm making new 304 headers so no point in coating my current ones right now.
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Old Apr 28, 2006 | 12:42 PM
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I've heard that header wraps trap in moisture and make the pipes rust really fast. I have no direct experience.
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Old Apr 28, 2006 | 12:47 PM
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Originally Posted by Pro Stock John
I've heard that header wraps trap in moisture and make the pipes rust really fast. I have no direct experience.
Well ****, mild steel rusts fast as hell anyway, and that is a huge bonus to ceramic.

Thats also another reason I am making 304 headers from some of the research I've done ceramic on 304 is pointless - it would be nice to hear from someone that knows how much of a difference there really is
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Old Apr 28, 2006 | 01:56 PM
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Originally Posted by Pro Stock John
I've heard that header wraps trap in moisture and make the pipes rust really fast. I have no direct experience.
on stainless no, mild yes.
course mild rust anyways, dont know the difference on how fast one rusts wrapped to unwrappped.
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Old Apr 28, 2006 | 02:08 PM
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Originally Posted by smokinHawk
on stainless no, mild yes.
course mild rust anyways, dont know the difference on how fast one rusts wrapped to unwrappped.
It makes for problems with aftermkt headers, as some mfgrs will void your warranty, if they are wrapped.
The wrap holds the heat in the tubing, and can concentrate it to a point that the materials are affected in a negative way...

As for ceramic on stainless... WHY NOT? The idea of the stainless is to better stand the elevated temps, especially that of an FI engine. The coating holds the heat rejection down, and lowers the under hood temps by a significant amt.
The results?? The best of both worlds, so to speak. More durable headers, and less heat in the under hood area.

As for the wrap... It makes a great wick, when oil soaked.
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Old Apr 28, 2006 | 02:40 PM
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unless when you need to weld on your coated stainless cause of cracks, thats a pain to strip off the coating before welding.
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Old Apr 28, 2006 | 02:52 PM
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Originally Posted by Country Boy
Anyone have experience which would work keeping the heat in the pipes better and not in the engine bay?

get it in get it running get it wrapped...

then later on in life id get them coated..but get it on and all worked out id do that...
onec you do your first intalll tske the tti street kit apart and back in is easy!
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Old Apr 28, 2006 | 02:56 PM
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well i would get the headers coated inside and our! thsi reduce the heat stress on the stainless and reduces under hood temps! then heat wrap just to be safe and to reduce temps even further! then you could even add a heat shield!

thansk chris

PS anyone multi layer the ceramic coarings???? i have heard of it being done!
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Old Apr 28, 2006 | 04:06 PM
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Originally Posted by SINISTER
get it in get it running get it wrapped...

then later on in life id get them coated..but get it on and all worked out id do that...
onec you do your first intalll tske the tti street kit apart and back in is easy!

Id rather not have to take it all back apart again. This is my only car too. I have another one I could drive, but its a PITA since its my work truck. I dont want the couple week down time
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Old Apr 28, 2006 | 04:07 PM
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Originally Posted by chuntington101
well i would get the headers coated inside and our! thsi reduce the heat stress on the stainless and reduces under hood temps! then heat wrap just to be safe and to reduce temps even further! then you could even add a heat shield!

thansk chris

PS anyone multi layer the ceramic coarings???? i have heard of it being done!

I wouldnt get the inside coated. I wouldnt want to risk it flaking and send stuff into the turbine....

How much mositure can the wrap hold? Wouldnt it all burn off when you drive it? I didnt like the oil and wick comment though.. LOL
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Old Apr 29, 2006 | 01:19 AM
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Country Boy, as long as you get the costings done profetionaly at a shop the does all the right prep work then you will be fine!

and the internal coating really helps! it smooths out imperfections and drematicaly reduces the thermal stress on the header itselfs (heat has to go through the coating before even getting to the metal)! and just doing an external coat will lead to even great thermal load on the headers as there is no where for the heat to go!

thanks Chris.
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Old Apr 29, 2006 | 04:57 AM
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oh i forgot your talking about the tti street kit, IMO dont get it coated, youll eventally have to reweld the cracks on the log, and its a pain to strip off the coating to weld. just wrap them, its 304 stainless so it wont rust.
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Old Apr 29, 2006 | 07:14 AM
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Why do they crack? Is it the heat expansion or the weight of the turbo?
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Old Apr 29, 2006 | 08:09 AM
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I was wondering if coating with ceramic on mild steel then wrapping it would be a good combo ? The coating would keep it from rusting right ?
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Old Apr 29, 2006 | 12:29 PM
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Originally Posted by Pro Stock John
I've heard that header wraps trap in moisture and make the pipes rust really fast. I have no direct experience.
Yes, I have seen this happen. Bob
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Old Apr 29, 2006 | 12:30 PM
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Originally Posted by GTFORMULA
I was wondering if coating with ceramic on mild steel then wrapping it would be a good combo ? The coating would keep it from rusting right ?
Possibly for a while, but I wouldn't do it unless you just want to experiment. Bob
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Old Apr 29, 2006 | 01:40 PM
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Originally Posted by GTFORMULA
I was wondering if coating with ceramic on mild steel then wrapping it would be a good combo ? The coating would keep it from rusting right ?
You'd have to check w/ whomever you have do the coating to verify, but I'm pretty sure most advise against it and will void the warranty on their coating if you do.
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Old Apr 30, 2006 | 09:45 AM
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Originally Posted by Country Boy
Why do they crack? Is it the heat expansion or the weight of the turbo?
heat expansion mostly IMO
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