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OEM A/C fan would be lucky to see about 400-500 cfm (most high qual ones in that size are about 600 cfm). If you assume the A/C takes up about 1/4 of the coolant radiator area then the 2750 cfm should give about 700 cfm or so through the A/C radiator.


OK but, say the OEM fan is 400 CFM and you got 700 CFM from the new electric fan, wouldn't BOTH fans being on at once result in more CFM, like 400 + 700 = 1100 CFM through the condenser?


No. It would be one fan pushing 400 cfm, fighting against the other fan pulling 700 cfm. In all probability it would make things worse.

Think of the situation as a hollow tube. You blow 400 cfm in one end and try to suck 700 out the other, see the error of the logic????

2002 Sporty , Ironman 2.5" spring, 2" body, 15 x 7 ROH wheels, K&N, 15 x 10.5 Simex Centipedes, Powerchip 91.

"Never argue with an idiot. They will bring you down to their level then beat you with experience!"