I think we all understand the purpose here, but what's missing is the theory of operation.
You say that the copper intake is to get the incoming air as cool as possible, but how does the copper wrapped in asbestos accomplish that? True copper is a good conductor of heat, but since it's wrapped in an insulator, once it has absorbed as much heat as possible, which wouldn't take very long, it will no longer be able to cool the air since it has no way of dissapating it through the insulator. If the aim is to keep the engine from heating up the intake, then you could accomplish the same thing by wrapping the asbestos around the original plastic intake. The copper does nothing in this respect.
As for the fans in the intake, they may cool the copper by convection when the car is not running, but like others have said, it becomes just another obstruction when the engine is actively taking in air. You said it kept getting cooler, but what were the conditions leading to that observation? Did you use a temperature sensor and measure it in the car with and without the fans installed? Or did you just have the intake on the shop table and put your hand on the copper with the fans running? It makes a real difference on the outcome.
KuoH
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Originally Posted by SilverSpear
The fans' purposes are solely to keep the incoming air as cool as it gets into the system.
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