Good evening to all ! I'm sure this question has been tossed around a good bit I searched and didn't find a definative answer. The question is I'm wanting to put e-fans on how much cfm is required to keep our f150's cool? I have 2005 f150 4x4 lariat 5.4.

 

depends on what you want to do. tow??? haul?? 2 14 inch should be enough. 2 16 inch should be enough for anything that you can do with that truck.

 

Thanks fl77er for the responce mainly daily driver and some medium towing 14ft trailer with 2 four wheelers.

 

i think the minimum is 5000 cfm