I am running two single heatercores (7x7 1/4") with two large 8" rotor fans.They are reasonable quiet and push a lot of air at 10,8v .I think they move between 50 and 100 cfm and also have an enormous pressure compaired to standard axial fans.Do you think these do a good job or should I use something else? I picked them because of Bill's article where he compaired a lot of radiators and saw better performance with fans that could produce more pressure. Here are the specs of the fans.
pdf doc