Aftermarket AC compressors Options

[technicalninja]

Does anyone have a modern compressor installed in a 914?

If so, I'd love more information on this.

I run a shop that specializes in automotive AC systems and my play-toys all have killer ac.

https://granburyautoac.com/

I'm planning a 134 conversion that uses a condenser behind the bumper and I need a modern compressor to make this work. The bumper has to be either a fiberglass replacement or something else (space reasons). I'll be using a modified 916 front cap.

The square York style needs to "leave the building"...

Any suggestions?

[technicalninja]

The fans are only needed below 20 mph.
If the fans are on at all times you're doing it wrong...

Let's agree to disagree peacefully. Sounds like you are mixing analog car ac and ultra modern digital engineering. None of us regular folk will be using always on variable compressors controlled by a computer. It will be basic 80-90s tech. Fans will be on when the AC button is on.

I'm going to try to fit a non-computer controlled variable discharge compressor from a late 90s VW as a direct replacement for the normal York compressor. I will REDUCE the wiring, not complicate it more.

I decided to fit the simpler system so that enthusiasts like are on this forum can easily use this themselves. Simpler is usually more robust and dependable.

Fans should be set up so they run anytime the high side pressure is above 160 and if you have a two-speed fan second speed happens at 200 psi. Below 160 they should be OFF and you will find anytime you are above 20-30mph the high side will be less than 160.
Those numbers are how the average Japanese/German car from the 80-90s work.
Often the German cars had a temperature sensitive switch in the liquid line and they didn't use pressure, but it all worked the same.

2-way pressure switches for fan control are readily available.
Trinary (3way) are as well. You can buy a trinary that can handle both the low and high cut out and also have a fan output as well. None of this stuff is new. It's all from the 80s or older.

Almost nothing had the fans on all of the time...

The 75 T4 car I have will stay simple, I will re-use much of the original Dealer installed AC system. It will be modified using the easy button. It will be done so others can copy it without much trouble.

The 76 916 clone I have will have a "full monte" PWM system on it, but it will be a water pumper and the compressor will come with what-ever motor I will end up using.

With both cars I will expect to be able to freeze people out of on a 100+ Texas day with the top off...

My favorite complaint is "turn this bitch down or off, I'm too cold."