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      07-07-2025, 03:22 PM   #22
amg6975
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Drives: '12 M1.5
Join Date: May 2017
Location: Rochester NY

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Update on my project. I got the unobtanium 1M parts to add the aux radiator but it's a bit more complicated than I originally thought. The rad interferes with the bottom of the OEM airbox, and the angle of the outlets is not ideal to fit any plumbing in. Both could be solved with some time and trimming but the tubing diameter is a lot smaller than the current return path of the water, and I don't really want to find out what happens if we choke that flow.

I also tried to figure out how to get a water to oil exchanger in the main return path of the rad and it would be a real pain. I may still go down this path by fabing a bracket to put the exchanger where the AC compressor used to be, but this isn't a mid season project. Right now I think I'm going to get a Setrab/Mosselman oil cooler for the left side duct and call it good until I can spend the winter tinkering.
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