Pushing and pulling on a radiator, RPM, CFM, Static Pressure & more! (please help)

opio

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May 10, 2013
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So I dug through my things and found all the corsair fans that came with my radiator, as I use fractal design fans on those. Now if I wanted to do a push-pull on my radiators, what happens if both fans have different RPM's and CFM ratings? Would it be better for the fan that has more CFM as the push or the pull...? Not only am I asking this question in regard to radiators but also about the whole case in general, do you want more CFM push in the front of the case or more CFM pulling out from the top and back?

Also, for radiators, what if you had both fans pointed towards each other, so like.. push push?
 
Solution
From my experience with Corsair type all in one coolers, they seem to perform a little better when you are pushing air through them vs pulling the air out with a single fan. Although, they dos seem to perform adequately with just a single pull fan. In fact, based on the design of my H60, it seems that Corsair (actually Asetek and Cool IT) intended for it to be used in pull only. Based on that, I would install the "weaker" fans as the pushers and the stronger fans as the "pullers" because my theory is that it takes more to pull the air out than it does to push it. If that makes any sense.
From my experience with Corsair type all in one coolers, they seem to perform a little better when you are pushing air through them vs pulling the air out with a single fan. Although, they dos seem to perform adequately with just a single pull fan. In fact, based on the design of my H60, it seems that Corsair (actually Asetek and Cool IT) intended for it to be used in pull only. Based on that, I would install the "weaker" fans as the pushers and the stronger fans as the "pullers" because my theory is that it takes more to pull the air out than it does to push it. If that makes any sense.
 
Solution