Run electric fans all the time?

I put in the Flowkooler pump, reassembled everything with the fans and went for a drive... no change. So much for all the glowing testimonials - I must have a different problem ;) Anyway, it works the same as before except my wallet is lighter. I can tell that the Contour fans are interfering with the airflow when they're off, because the first leg of the drive did not stay nailed to 183F any more.

Would a modest overdrive (5-10%) be worth trying? - although I bet there aren't any pulleys for that!

At some point I will either build my own PWM controller or just invest a couple hundred bucks in an Autocoolguy unit, and let the fans do what they need to do. As I said at the beginning, I don't have a real overheating problem. :)