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Thread: Black intercooler?

  
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    lee gsi's Avatar
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    Black intercooler?

    Would painting an intercooler black have any affect?

    Most are soliver etc but the standard one is black.

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    Coube's Avatar
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    You can paint it with black paint in spray - I did it on one car, there is no difference in efficiency(I've meassured it) but You have to know it won't last forever and will need repainting after a year or some. You can try to paint it..(dunno eng. word) powder-coating method(?)
    Astra QP Flash by Neodesign with gt2871r getting around 350bhp

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    lee gsi's Avatar
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    Was thinking about powder coating but didnt know if it would 'coat' it and keep the heat in

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    Craig's Avatar
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    the black paint is good for a stealth look

    also it apparently absorbs heat less
    Ibiza FR CR TDI with 203 BHP

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    Surely if you paint your intercooler any colour, it will have a detrimental effect on its cooling ability because basically you are adding a layer of insulation .(i.e the paint and if you are painting it properly, primer)
    I know it is only a thin layer but it will act as an insulator nonetheless.

    I suspect that the standard intercooler is painted because it is made of steel which needs painting to stop it rusting, black is as good as any colour for vauxhall to paint it I guess.

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    purple pride's Avatar
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    actually black absorbs heat more! would you prefer to wear black or white on a hot day? the reason i polished my top hat and x-over pipe wasnt for looks, but to reflect the heat away from them.

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    Yes black does absorb more heat, but if i was to wear a black t shirt on a sunny day and sat in a dark room, I would get no hotter than if i was wearing a white t shirt because their is no light to absorb the heat from!
    Intercoolers will see a bit of dayslight so technically a shiny metallic finish is surely preferable to a black finish because as you say black absorbs more heat.

    Under the bonnet there is no light so colour won,t make a difference to heat absorbtion at all on components, the heat you have to deal with is radiant and conducted heat, so colour dont come into it.

    As you have said, you have polished some underbonnet components and this will help to stop the heat but not on the grounds of colour, but because you have reduced the surface area of the part by polishing and removing the rough crackle finish of many componenets but as i have already said, most paint itself will act as a s;ight thermal barrier anway so it really is swings and roundabouts!

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    oh ok didnt think of it like that but then when roasting potatoes why do some people wrap them in foil afterwards? its because the potatoes radiated heat is reflected back into the potatoe, thus keeping it hotter for longer, it is also possible to part bake it and wrap it up to let it cook itself!-but enough about cooking, this also applies with engines.

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