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Old 06-30-2014, 02:51 PM   #21 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
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My experience in the world of computers has been that active cooling (convection) is far more effective than passive (radiation), and I assume it applies equally to cars. With as little as 1-2 cubic feet per minute of airflow (and a radiator fan is likely in the hundreds, if not thousands!), you're getting more cooling from convection than radiation. Even a slight breeze over your radiator is probably helping more than radiation.

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