It would be nice to be able to measure the amount of air flowing through the system. Maybe you could measure the voltage output of the fans when they arn't turned on since driving down the highway makes them spin, thus creating power...? Or is there a better way?

 

The two biggest things you have to worry about with your setup is getting engine temps too high, and having your large FMIC to not do its job of cooling your IAT's. Both of these issues have to do with airflow.

Overheating the engine, has to do with airflow from your air dam under your car. You have changed that setup to give air first to the FMIC, thus taking air from the original setup of cooling your motor.

Not getting enough airflow to your FMIC makes it pretty much useless, as it won't be able to lower your IAT's. Most guys running the FMIC's with the coolest IAT's are guys who have hacked up their front bumper exposing the direct front airflow to go straight to the FMIC. I had to create more airflow in mine (hench the holes behind my fog lights, and the additional custom air dam aimed directly at the FMIC) to make it efficient enough to make a difference.

The only way I know of testing it, is simply to drive it on a normal summer temperature day (70+ degrees) and check the engine temp and IAT's. Then and only then will you know if you need further modification, or your setup is working properly. AGAIN, on a day were the temperature is 30 degrees, everything will be cold. It doesn't mean its working, it means the outside temp is keeping everything cold. Get the same readings on a hot day, and you know you are where you need to be.