C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Coated Headers & Underhood Temps

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Old Feb 10, 2004 | 09:53 AM
  #1  
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Default Coated Headers & Underhood Temps

Do underhood temps increase or decrease when going to coated headers form stock exhaust manifolds?
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Old Feb 10, 2004 | 09:58 AM
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Default Re: Coated Headers & Underhood Temps (geezel)

With Headers you're temp will increase.... :thumbs:
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Old Feb 10, 2004 | 10:12 AM
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Default Re: Coated Headers & Underhood Temps (vinnies87)

With Headers you're temp will increase.... :thumbs:
I have heard the coating is extreamly helpful in the cooling process tho. I'm not sure. :lol:
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Old Feb 10, 2004 | 10:14 AM
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Default Re: Coated Headers & Underhood Temps (geezel)

With coated headers, you underhood temps will decrease.
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Old Feb 10, 2004 | 10:49 AM
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Default Re: Coated Headers & Underhood Temps (STL94LT1)

With coated headers, you underhood temps will decrease.
Yeah thats what I was thinkin..... :crazy:
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Old Feb 10, 2004 | 12:06 PM
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Default Re: Coated Headers & Underhood Temps (VictorRussell'92)

You will decrease the increase of your increase.
Basically.

:jester
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Old Feb 10, 2004 | 12:10 PM
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Default Re: Coated Headers & Underhood Temps (HammerDown)

You will decrease the increase of your increase.
Basically.

:jester
:lol:
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Old Feb 10, 2004 | 08:52 PM
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Default Re: Coated Headers & Underhood Temps (HammerDown)

You will decrease the increase of your increase.
Basically.

:jester
So temp will go up, just not as much as uncoated. :confused: :confused: :confused:


[Modified by 90 Convertible, 7:53 PM 2/10/2004]
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Old Feb 10, 2004 | 09:05 PM
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Default Re: Coated Headers & Underhood Temps (90 Convertible)

Generally,
Highest Temps- Uncoated Headers-- greatest surface area to dissipate high heat.

Less- Coated Headers-- depending on the coating (ceramic, not just HiTemp Paint) and whether outside only or inside and outside.

The same (if inside/outside ceramic coated) or less (if single coated or just painted)-- Stock manifolds

Lowest Temps- Thermal wrapped and ceramic coated headers. But doesn't look nearly as sharp as the coated headers alone.
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Old Feb 11, 2004 | 01:42 AM
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Default Re: Coated Headers & Underhood Temps (tkrussell)

yeah, coated headers will be cooler than non-coated :yesnod:

BUT i believe that coated headers are still going to be hotter than stock manifolds (because of the amount of surface area. Stock manifolds retain the heat a lot longer though since they are made of iron instead of thin pipes.
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Old Feb 11, 2004 | 05:24 AM
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Default Re: Coated Headers & Underhood Temps (GlockLT4)

Stock manifolds retain the heat a lot longer though since they are made of iron instead of thin pipes.
L98 Factory Exhaust Manifolds are basically shorty headers, that's why they have the heatshields there.
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