@Michael Pickett posted:Agreed, AC can make the difference between an enjoyable cruise and a sweltering one, even with the top down.
Re: a vent for outside air, I've wired up a switch under the dash to turn off the compressor so we can get ventilation through the AC vents. The AC blower still moves the air around. Our AC doesn't recirculate air from the cabin, it's always fresh air from the battery box area.
That is how the VIntage air unit does the heat portion of the heating AC in newer IMs.
The Davis mod is pretty cool as it uses outside air and has pull knobs to control it and it has the ability to close when it gets cold. Also to deal with water infiltration. Then they added it to a 911 fan under the front hood, a scroll fan. AFAIK the same thing could happen with a hose and ram air vent to get outside air in at speed in my car, but the sophistication would have to be added to deal with rain etc.
With your set up and your island temp all you need is a sealed battery and constant on. I am sure it works well. Good for you.