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Re: Ram-Air ? (archive)

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Posted by Joseph on August 01, 2001 at 22:37:40:

In Reply to: Re: Ram-Air ? posted by Mpower007 on August 01, 2001 at 22:12:54:

Subaru's air duct goes directly to the intercooler on the WRX. On other Subaru's, such as the 2.5, the intake is just for looks and is blanked off underneath. This is so NO AIR will enter and create a vacuum. When the car is at speed, the air rushes under the car, forming a barrier. If air is forced ontop of that, the barrier only causes a vacuum in the engine bay, air will not escape as easily. Since you have a water-cooled engine, exhausting heat from the radiator is the only way to get any measurable cooling benifts.

The point of a "hood-scoop" would not be for cooling a motor(unless the motor was aircooled or the "scoop" was some sort of exhaust for the radiator). The point would be to get "cool-air" to the intake or intercooler on a turbo or maybe even for oil-cooler. This is something that yours, obviously, does not do. I would suggest blanking it off underneath. So as not to allow air to enter the compartment. I hope this helps.


Joseph(1985 M635CSi owner)

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