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Old 10-07-2013, 05:18 PM   #6 (permalink)
Tesla
Master EcoModder
 
Join Date: Feb 2012
Location: Australia
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The Truck - '02 Nissan GU Patrol ST
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Well grill blocking is already at that safety margin, the idea of partial blocking of lower/cooler portion of radiator is simply to maximise heat extraction with the lower airflow, so in actuality would be increasing safety margin.
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