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I'm very skeptical that an upgraded FMIC can keep IAT's below the point that Procede's start pulling boost (122F?) with any amount of street driving. If the car has been idling in traffic, even FMIC's will heat soak. I'm skeptical of dynos that show otherwise as the car can sit and cool down before the run which is a different situation than a car that has been driving for 10-15 minutes to warm up and heat soaking all the while.
E85 doesn't help that. I run E85 on stock FMIC and my IAT's were through the roof (170F at the end of a dragstrip pass). E85 gives you a hint of extra torque (higher oxygen content) and excellent knock suppression, but doesn't have any real effect on IATs.
Meth/water injection may possibly be the only real solution for IAT's besides an water-to-air intercooler setup and those are pricey and complicated.
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