Intercooler Thermo Fan

[STAINLESS again plz]

Drive through water

[Panda Eyes]

attn ladies: I have a black d*ck....

[JETURBO]

does it quack ?

[Panda Eyes]

that's dithpickable....

[Cameron02]

  On 13/01/2013 at 6:43 AM, Kroozin said:

Black has better heat exchange properties than any other colour

As far as I am aware (and I am prepared to be corrected) the colour is only an issue if the heat energy is comming in the form of photons (light) eg. sunlight. In the case of sunlight, black will absorb more heat as it absorbs the photons. White will be coolest as it reflects all the colours of the spectrum. Differnt colours will have different effects depenging on which colours of the spectrum the absorb or reflect. This is subtractive colour (reflective). Not to be confused with additive colour where you are simply looking at light itself (such as a computer screen).

  On 13/01/2013 at 6:43 AM, Kroozin said:

that's the reason car radiators are painted black, unless the radiator is from a new car by which it is made of aluminium, thus left in its natural state as aluminium is better at heat exchange than copper core traditional radiator

Not sure where you are getting your info from but I just cant let this one go. Copper is far better at transfering heat than aluminium. that's why radiators have been cooper for so long. They paint them black because copper oxidises (a form of rust). Radiators were usually considered ugly so black was the colour but you can paint them any colour you want...no difference. So I hear you ask, why are all the intercoolers aluminium then. Cooper is a better conductor but it is softer. You will find radiator fins bend much more easily that intercooler fins. From memory I thank most radistors have brass tanks with cooper fins. Any way due to the pressures going through an intercooler aluminium is used for the extra strength. In fact gold is a much better conductor than cooper but its a tad expensive and softer again. Electricity works much the same aluminium ok, cooper better, gold awesome. Thts why gold is used for critical electronic components. I think the reason some people paint their intercoolers black is for the stealth look. Aluminium oxidises too but very slowly and you can easily rub it off.

  On 13/01/2013 at 6:48 AM, Adam said:

And that's the difference. XR's are moving when the engine and turbo are working hard so there's natural airflow through the cooler. They're not working hard when the car is stationary like the 4x4's you mentioned.

Correct, as I think I mentioned earlier, once you hit 60kmh the fan will be useless. However whilst you are idling at the lights on a hot summers day or doing a burnout before the drag it may be usefull to get the intercooler as cool as possible before the run. Once you are moving this is where I believe the water spray takes over as the air flow increases evaporation and therefore cooling.

[STAINLESS again plz]

Wikipellor would be proud

[JETURBO]

^^^ wikipellors brother ^^^

[bjc]

Pretty sure copper is alot more expensive also so that was another reason that radiators are now aluminium not to mention the production quantities of both metals.

[Cameron02]

Yeah, I think cooper has gone up in price in recent years. I recall hearing many cases of people stealing cooper wire from train lines? For an intercooler an aluminium tank and bar with cooper fins would be good but I'm pretty sure cooper cant be welded to aluminium.

  On 13/01/2013 at 2:10 PM, Cameron02 said:

Aluminium oxidises too but very slowly and you can easily rub it off.

Oops! I have to correct myself Aluminium actually oxidises very quickly. Its just that it does not interfer much with its heat transfer abilities and does not look bad either.

[dasmq]

About the air con pipe Ford did it on one model of the SVT they built a box and piped in an air con to assist the intercooler I think it was in 2000 I read it in a magazine