Thought I'd post an update. I did end up bypassing the evaporator pressure regulator but it didn't really make a lick of a difference. The innards looked as expected - a piston backed up by a bellows/spring mechanism. When I drive for a long long time or its not 110+ outside the vent temps come down...

18-2226 Thanks! Whats the difference between ACKITS.COM and ACKITS.NET? I can find the fittings I need on the .COM website but not on the .NET. When I search the PN from the .COM website in the .NET website it looks like it brings up the right part but its a different PN and no description. Ex: htt...

What do you guys think about going with this valve? It is one of the few 2 ton right angle valves I could find in catalog. It is also internally equalized and reverse flow (so the orientation will be the same) but the fitting sizes are different. I will have to weld on the appropriate fittings to my...

Why wouldn't the current TXV work? Why do you need to put in an H block? I don't agree that you NEED a cross charged head or bleed seat. You have a nice big fixed piston compressor, system charged head or cross charged would both work fine, whatever your existing valve head is will work fine. This ...

I found a pretty comprehensive product catalog for TXV's here https://www.uacparts.com/legacy/UACproducts_EX.html Unfortunately I cant find and 2 ton metric reverse flow O ring internally equalized TXV's which would be great because that would make it a drop in replacement. https://www.uacparts.com/...

Do any of these places do custom AC hard lines? Biggest issue I see with fitting an H block would be adapting the lines to fit the openings on the valve. I presume I would need to take one from another application and cut off the lines from either side of the H block so they could be adapted/welded ...

Thats the route I am leaning towards. I really love the car and want to keep it I would love if the AC was a better performer. I am also planning on doing a second parallel flow condenser stacked in front of the existing condenser to give a little more condenser capacity. I would prefer to go with a...

I am planning on buying a used EPR so I can take it apart and possible gut it out. It looks like it is all crimped together so I will probably have to weld it back together when I am done. I wish I could test mine like that, but there is no service port between the EPR and the compressor so its impo...

I think the extra port on the evap is for an IHX integrated into the evap, basically a little heat exchanger transferring heat out of the liquid refrigerant and into suction gas, these are pretty common on current production cars, but they are in the suction line pipe, not in the evaporator. Evapor...

tbirdtbird wrote: ↑Fri Aug 27, 2021 7:47 am That EPR is the fly in the ointment. No one really seems to know much about it, and we have some brilliant experts here...... (I am not one of them)

Isn't the EPR really just a POA valve? From what I understand POA valves are pretty well understood and were common in some applications.