When will people understand that the air dicking around in the engine bay has no bearing on the temperature of the coolant? Engines are not cooled by the air circulating around them :facepalm: . Considering the FMIC, I'd say that the issue is the fan trying to pull air across multiple heat exchangers. Ditch the bar-and-plate intercooler for a tube-and-fin design that flows much more air. Also, analyze how well the air can get to the radiator, you may need to add some ducting to help direct airflow. It's also a very good idea to make sure your fans are sealed to the radiator.

Need to look like this- note how the edges of the shroud have no gap to the radiator.


Something like this is about the worst thing you can do-


and this is just as bad-




If your radiator/fan setup looks anything like the second two pictures..your fans are moving some air through the radiator and recirculating some hot air by venturi effect.