Few things to keep in mind.
First, it doesn’t look like any of your logs had WOT runs long enough for our ECU to adapt and add timing advance while switching to e30 mix or map3. My understanding is that you need to run 100% pedal/throttle through a few gears at least. Don’t you have a highway on-ramp where you can safely do a WOT pull from 10-80 or so a couple times? That should be enough for the ECU to adapt to both e30 fuel & map3.
Second, a full barrier of heat shielding will help, but pretty sure your high IATs are from the hot radiator fluid being run through the throttle body while the air temps are in the 60s. I know multiple people that have the same high IAT issues while using both intakes with & without heat shielding, but it only happens during the winter and temps in 50s-60s. One of them did the DIY coolant bypass and now his IATs run in the 80-95 range in cool weather.
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Also someone on here did some thorough testing of stock intake boxes vs aftermarket shielded intakes and the temperatures were similar. I believe it didn’t vary more than 10-15 degrees over the completely sealed OEM intakes. So it’s very unlikely that your DIY intakes are causing 80 degrees increases over ambient air temps and probably just from the hot radiator fluid running through the throttle body while in cool/cold weather.