Black only helps radiation losses, NOT conductive losses which are
by far the biggest contributor. Radiation losses at intercooler temperatures
are not even worth considering.
A coat of paint will reduce conductive efficiency much more than a change of
colour will help radiation efficiency.
Of course paint will stop corrosion, which will also drastically lower
efficiency
(that's why they paint radiators).
The ideal is to black anodise the item, since that does add a layer of
insulation.
Or get funky and do blue, red, purple, green, etc...
----- Original Message -----
From: "Steven Copcutt" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, July 27, 2001 2:01 PM
Subject: Re: intercooler color
> My two bits worth..
>
> If your intercooler was painted black , it will give off heat faster than
a
> light coloured ( ie plain Alloy ) one .
> This is why the SR-71 was painted black ( Black Bird )
> Quote " Black paint can reduce the skin temperature by up to 28 C " end
> quote
> the only reason manufactures are leaving the intercoolers unpainted is
> because that is what the aftermarket guys are doing and putting on to the
> show cars , ie visible
>
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