[DeTomaso] ceramic coat vs. wrap

[Thomas Tornblom]

Will Kooiman skrev:
> We compared coated headers with non-coated headers during a dyno-day
> session.  
>
>  
>
> Text from the newsletter - in myth-busters style:
>
>  
>
> Myth#3 - Coating Ceramic headers significantly reduces engine bay
> temperatures
>
>  
>
> We tested the temperature of every car's headers with a pyrometer
> immediately after shutdown of full throttle testing.
>
>  
>
> Ceramic coated headers averaged about 460 degrees.  Painted headers averaged
> over 800 degrees.
>   

Was that a shiny coating? I have noticed that my IR-temp gun reads 
significantly lower temps on shiny metal parts than if they are dull.

I have had to put pieces of masking tape on the shiny copper heating 
pipes in my house to be able to reliably read the surface temps.
>  
>
> Myth NOT busted.  Get yer headers coated!
>
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>