Toymods Car Club Inc: Tech & Conversions => What colour for intercooler?

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Joshstix
Forums Junkie

Toymods Vice President

Location:
Sydney
Registered:
May 2002

Re: What colour for intercooler?	Thu, 06 November 2003 09:14

The whole black or not question is a waste of time in my opinion. Sure black radiates heat much better than silver however you are not trying to cool the intercooler by radiating it's being cooled by conducting the heat to the air stream. The relative percentage of heat that is released by radiation compared to conduction is minute. It's been a long time since I've needed to know this stuff and I've since offloaded the texts but from memory radiation accounted for around 2 percent of the heat lost from an automotive radiator, which should be about right for an intercooler as well. When conducting heat there is loss of efficiency in the transfer at any junction layer. So basically if you "paint" an intercooler black you are working to increase the efficiency of the least efficient component of the heat trasfer, while reducing the efficiency of the more efficient component. Even if the paint increases radiation performance by 100% and only reduces conduction by 3% you are still losing efficiency. However as with a lot of things with cars these days performance and efficiency aren't necessarily the deciding factors in a choice like this and stealth definately has it's advantages. [Updated on: Thu, 06 November 2003 09:16] [Report message to a moderator]

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