Early Slant Six A/C Success

Latest observations:

Here in the primordial swamp heat of the Texas Gulf Coast, this unit is just marginal on a 90+ degree day with 100% humidity.

Because the car is black, the windows untinted, and no insulation between the roof metal and headliner, it gets VERY hot inside when parked.

And this A/C system struggles to overcome the heat that's been generated inside.

However, if starting from a shaded garage and cruising at highway speeds, the system creates a bearable environment, but nothing like any modern, factory A/c system.

The interior/cabin area of a '61 Lancer is fairly large, so that adds to the challenge of cooling it down and keeping it cool.

Perhaps it's because the underdash system is a dual "heat/cool" system, the cool system is less efficient than a "cool only" system.

Regardless, we can now at least drive the car during our SETX summer months which extend from May through September.