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Old 07-06-2012, 01:10 PM   #9 (permalink)
Nimrod
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Join Date: Jul 2012
Location: Alabama
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Thanks Matt!
On this 2012 F-150 (5.0L engine), there is a center opening, about 100 sq in. area which works out about 1/6 the area of the radiator, below the front bumper which is where Ford puts the turbo intercooler for the 3.5L Ecoboost models.

While we are having these extreme (100*F+) summertime temps here in Alabama, I may first try totally blocking off the grille itself (the actual openings for which are less than 1/2 the total grill area), and watch the UG coolant temp reading to see how running on just the lower opening works out. That should give me some reasonable guidance on how to proceed with adjustable shutters, if at all...
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