[DJC911]

This is interesting...two thoughts for the water issue:

1. Why not put a small plastic duct on top of the grill (outside the engine bay), facing to the rear of the car. The motor would still pull in the cold air, though you would lose the ram effect.

2. How about a custom hose with a small drain hose running off of the bottom of the cold air intake to the outside (left rear well). The idea being to allow the heavier water to drain out the bottom through the small hose while the air continues into the airbox. You might want a small collection up at the bottom. This should work most of the time...though I would be cautious about heading out into a heavy rainstorm. The grill would keep things from getting in that would lodge in the small hose so that the drain doesn't get clogged. The only issue I could see would be that given the speed of the passing air, it might create a siphon effect that would prevent the water from draining (i.e., air coming up the drain hose not allowing the water to go down).

I had always assumed that Porsche left the airbox opening in the car with no cold air intake from the grill because there was already enough cold air coming in and Porsche didn't want the grill opening blocked because it would prevent vital cold air from getting into the engine bay to cool the motor.

I wonder how much water gets into the engine bay through the grill when (a) the car is sitting outside in a rainstorm and (b) when the car is in motion?