After the first season the original radiator developed a small leak from the core. I was never a fan of the radiator/airfilter setup Hinson supplied ... it worked fine, but it was not esthetically pleasing to me.
This did give me opportunity to install this:
Funny that Mishimoto, in Japan, makes a rad to fit an LS swapped car, but not for a rotary powered one.
Moving the radiator back to the factory location meant that the Hinson air intake wouldn't work either ... which suited me fine.
The Mishimoto rad came with a filler neck that was lower than the top rad hose ... which seemed dumb... so I capped it off and fabricated a swirl pot in the upper rad hose and added some air bleed lines from the top of the rad, top of the swirl pot, and the top of the cylinder heads. These vent lines are run to an expansion tank mounted to the front of the cylinder head. Shown here, along with fabrication of an air box to fit the new K&N: