Explain static pressure vs high cfm fans on s radiator.

Because static pressure reduces losses through restrictions.

If you have a 100CFM fan with piss poor static pressure it may only effectively transmit 30CFM through a restriction such as a radiator, while a 50CFM fan with high static pressure will see less loss and might push 40CFM effectively through the restriction.

Also, you might want to check to see how reliable both mfgs' numbers are...
 
Static pressure is the fan's ability to push air through restrictive areas. When air is pushed against a radiator or a heatsink, the fins push back on the air, so to speak, restricting flow. The higher the pressure, the more force the air has to push through the radiator, which in turns increases overall airflow.
 
Google.

Manufacturers do not always put up the static pressure of fans.

I believe there is one person on overclock.net who has tested a bunch of fans on radiators to see how well they perform. He has a complicated flow meter device and everything.
 
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