The IC core for each turbo in the UAS style FMIC measures 6" tall X 3.5" deep X 24" Long. Per the flow charts at bellintercoolers.com for a bar and plate core, this flows roughly 182 cfm at 1.5 inches pressure drop. Many larger turbos flow 450-500 cfm each. IMHO, trying to push this much CFM through a core that can efficiently support only 182 cfm will cause excessive pressure drop. Yes, the exit temp of the charge air will probably be cooler than a side mount because of the extra length of the core, but your turbos will have to work much harder to push the air through. IMHO. Every other car out there that is running a Front Mnt. doesn't bitch about cooling?? How many cars have an engine bay as crowded as the Z32? None that I can think of. If you plan on tracking the car, a FMIC will not help you keep your engine cool due to restriction of airflow through the radiator. Also, unless you relocate your MAFS from behind your FMIC, you will be drawing heated air into the engine intake, which in my opinion negates the benefits of an upgraded intercooler. Yes, I agree that airflow through the side mounts sucks unless modifications are made, like relocation of the radiator overflow tank and deletion of the charcoal canister. But then again, many think a FMIC just looks cooler, and believe form > function.
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