Help with A/C repair, Anyone done this? Options

[shadygrady]

The a/c in my 73 2.0 does not work. It needs several things including a compressor. Are there more efficient new ones out there that are bolt on or have new mounts? I plan to convert to R134. I was thinking of taking the old lines and getting new ones made locally.

I know most of you will say you don't need a/c, take the top off. But my better half who helped me buy the car likes a/c so that is not an option. So any advise and suggestions would be greatly appreciated.

[rfuerst911sc]

Just a few comments as I have redone the AC in my 911 and I will be adding AC to my 914. First off the Sanden 507 or 508 are excellent compressors but are not rotary they are wobble plate piston type. They are very quiet,small,efficient and use very little horsepower. You do want to replace the old porous rubber lines with new barrier hose. If you can find a local shop to work with you all the better that's what I did. I used the old fittings and had new hose crimped on just make sure for any angled fittings you have the clocking position correct. The normal downfall for Porsche AC is not enough condensor space and poor effiencecy evaporators. The two condensor setup from what I can tell works very well but I wouldn't rule out a 964/993 OEM setup from the 1990-1998 Porsches. This condensor is efficient and has a powerful fan and I think it will fit in the rear wheelwell of a 914. Also in place of the standard receiver/drier there is a product called a Procooler which will help with additional cooling. I don't know what's available for a evaporator, I know Rennaire and others offer a upgrade for 911's but I have to learn about 914's. And last I like useing HC12 for refrigerant instead of R134A. HC12 is flammable but it cools better than R134A and runs at lower pressures. This is mostly for the DIYer as most shops don't want the liability of flammable refrigerants. Good luck with your AC project.