MadMac

Just wondering, how resiliant is anodising to tempratures?

For example, if you get an Ally rad/intercooler and anodise it to say black, how would that effect the rad/intercoolers efficiency?

And would the anodising stand up to high temps? Or just fade?

Charlie Chalk

iTrader: (1)

why would you want to ?

MadMac

maybe I dont want silver ally like evryone else

Charlie Chalk

iTrader: (1)

maybe you should think about spending your money else where and get this cabby on the road





would be pointless tho imo, spending alot of money on something you wont see much of

PhilM

Anodizing will stand upto a blow torch for a short period of time, so it will easily cope with <120degC found in a car radiator mate.

As for how effectivly black dispureses heat over a silver surface, they seem to do the trick since all car radiators/intercoolers etc are black as std! Im sure the physicists will let you know more.

MadMac

Nice one Phil

Charlie Chalk

iTrader: (1)

you still wont see it, unless you take it out at shows and say " hey guys look at my rad"






POINTLESS

MadMac

Not when your at shows with the bonnet up

Charlie Chalk

iTrader: (1)

and your running a zetec block, which is bigger head, so unless your looking for the rad, you wont see it

PhilM

Why not just paint it black.

I mean, black anodising is hardest of all the colours......and will cost you loads lol.....paint it black.

Hell, you got a bling ally rad, and itll then look like a boggo std one, noone will look twice lol

Charlie Chalk

iTrader: (1)

or once, as its black

PhilM

MadMac

sod it I give up, just take 10 min to TRY and be original and always someone about to stomp on your ideas

essexrsturbo

why you getting pissed off mate? as if it matters wot other people think?

SteveB

iTrader: (3)

In answer to ya original question..... Bailey Motorsport anodise header tanks so it must take the heat of coolant in the car

MadMac

Charlie Chalk

iTrader: (1)

still pointless

JesseT

You bufties! What does it matter if anyone notices it? It's all about how it performs...

Heat is dissipated from a body by two principal phenomena. Convection and radiation. Convection means that the heat is transfered and carried away by the air flowing through it. Radiation has everything to do with how much it's temperature is above the ambient temperature about what is the relative emissivity of the material surface. The relative emissivity of a silver reflecting surface is minimal and thus it will radiate heat away poorly (On the other hand if it is cooler than ambient temperature, it will also heat up by radiation poorly). A black surface has a relative emissivity reaching 1 and thus is the perfect surface for heat radiation as long as it's a hotter body than the other bodies surrounding it. Ideally you'd want to have the rad silver facing the turbo. Then the IC and rad's font side black.
Anyhow convection carries away by far the biggest part of the heat.

MadMac

Great answer Jesse

The main reason I want to do it in black is to cordinate the engine bay with the rest of the car.

But, it sounds like it would have some great performance benefits too

And I hate shiny chrome and silver

Alloy

Do it if you want to do it mate, don't let anyone put you off. Anyway, I have an aftermarket cylinder head on my bike and it anodised, so....