cfm electric fan

I have been playing with a couple different E-fans and so far have not found anything that really cools my car properly. Currently I am running two Mr. Gasket 12" fans at 1400 cfm each and the car still gets warm...and then to boot, when on the highway the car creeps up in temp because the fans can't pass enough air when free spinning (in warmer weather).

Stupid as it sounds, it's true. I had no highway cooling issues when I had a stock 7 blade clutch fan on the car. It only got warm when sitting in traffic because I had no shroud.

I thought the E-fans would be cool, and more effective, but so far have been unimpressed. I'm getting a fan set from a Benz CL which supposedly works awesome. It sucks a ton of air and fits over the 26" radiator perfect. If THAT doesn't work I'm going back to a mechanical and will just drop the coin on a shroud.