You could put a piece of stainless inbetween the RAD and IC and then some exhaust shielding. Also maybe an inch of gap would not hurt with a splitter in-between the two. Sounds like a great idea since I just have a 3 row radiator and I have only gotton over 215 once sitting in traffic with no wind and a black steel hood. Surely a more narrow, yet thicker, aluminium radiator would not be a problem with a proper fan. Plus you could vent the cooler post-IC air over your turbo to keep it cool as well.