How have you guys been wiring the ac variable displacement solenoid? I don?t get much pressure without putting 12v to the solenoid. When I do the trinary switch kicks the fans on and keeps the compressor from getting too much head pressure.

Now it?s fall and cool outside. Not sure how well that?ll work in 100 degree weather. It?s hooked to a vintage air system in a 72 chevelle. Works great with the compressor stroked.

I don?t have the ac system wired to the pcm. The vender I got the engine from neglected to give me any ac parts besides the compressor mounted to the engine. I figured I would try it like this first and I could ad a rheostat to allow for changes in displacement in ambient temp. Just looking for ideas better ideas before I go that route.