I am going to be undertaking fairly soon trying to create some plates the will enclose the space that is inbetween my FMIC (Apex'i) Radiator (Koyo) and Condeser (stock duh). I'm wondering if anyone has ever made these for their car or has some helpful tips for when I make them? i am almost positive that the air is escaping around my radiator causing me to have to run my fans constantly to keep my water temp down. Any help is apprecated!
Thanks,
Ryker

 

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I too had a problem keeping my car below 230 on the highway before I made ductwork around my Apex fmic. I regularly road race the car so this phenomenon would be obviously catastrophic if I didn't figure something out to keep the car cool. And just so you know, I live in KS and the summers are hot and humid, especially at a road course in the middle of Topeka. Anyway, I fashioned a duct on either side of the intercooler, out of thin sheet aluminum(Lowes home improvement store has it) attached to the radiator side flashing(I have an OLD mazdacompetition 4 row) with small self tapping screws. I then fastened the front to the side frame rails with said self tapping screws also. I then attached another piece of aluminum spanning the entire width of the radiator and attached it to the side pieces. This essentially creates a large duct in front of the radiator. I used all self tapping screws except a few rivets where the sheet aluminum needed to be fastened together to make the span across the bottom of the radiator. I bent the lower piece beneath the power steering line and cut the front leading edge to match the gravel tray/lower faring under the car. I drilled holes to match the mounting holes for the lower faring and attached the lower portion of the aluminum duct between the lower faring tray and the lip spoiler. The car has seen 153 mph on the front straight at Heartland Park Topeka many times and the ductwork has remained intact. On the hottest racing day this last summer at 101 degrees F. My water temps never went above 220degrees running 13 psi of boost on stock turbos. I do have a low temp thermostat and I run 40 below(Pro Blend Product) in my cooling system. Works like a charm now!
Hope that helps a little.
Art