As DE mentioned, your circled area is of no concern at all. Getting water there is no worse then getting water anywhere on the chassis of the vehicle.
For typical rainfall you dont really need to be concerned about anything unless your air filters are gratuitously exposed or become submerged.
In those occasional water apocalypse from the sky moments, I might be concerned with standing water buildup around certain engine components and avoid driving the car. Such as perhaps in the valvecover area and dripping around the coils into the plug wells and hell even then I dont know if it would matter. Last time I *personally* saw a wet engine cause problems was when cars had spark plug wires.
About 50,000 miles with my vented hood (Seibon TS Style) and the only annoyance I have is my engine is all water spots and dried car wash soap.
Last edited by phunk; 07-15-2014 at 01:51 PM.
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