Air conditioning upgrade photos/details

Bmachine

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The question was about:
x_atlas0 said:
Has anyone done more work with upgrading the interior-side components? (evap, blower, incredibly expensive, fragile, and rare interior ducting) I have heard from a few people using VintageAir and ICEAC, but when I have called them they said they had nothing that would work.
 

Blinkling

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I didn’t want to tease this yet because I haven’t finished but I’m putting this evaporator in my car:


I won’t know whether it’s a success or an upgrade until I try it but I’ll share my notes here tonight or tomorrow. Feedback wouldn’t hurt.
 

Blinkling

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I intend to give this a full writeup but here are the broad strokes. The idea is to use an available evaporator (the one from the rear A/C of a Toyota Land Cruiser -- $60) and an available expansion valve (the one from the rear A/C of a Dodge Durango -- $30) and have them more or less drop into our E3/E9/E12/E21 evaporator box. The way the project is winding up it looks like the box needs to be slightly modified for clearance and the tubes out of the expansion valve would be custom.

I did a test today. I tied a trash bag on my stock evaporator box that I just took out of my car and an identical bag on my junk yard project box and turned both blowers on to see which bag filled up faster (proving that one or the other had better flow). It was a tie every time, so that's a good sign. As for cooling advantage I feel like that could only be measured side by side with a car with a stock A/C on a hot day, maybe at SoCal Vintage.

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Bmachine

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Someone has clearly done some homework there! Well done, Dave! Can’t wait to hear how it turns out once fully installed.

But first you talked about using a Vintage air unit and then it was a Land Cruiser one. Which is it?
 

Blinkling

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It's a Land Cruiser one. That it's from a Land Cruiser is incidental; I spent hours sorting through the FourSeasons website looking at evaporator core dimensions and then going over to RockAuto with the part number to see if they were cheap. It would have been nice to use the Land Cruiser expansion valve too but it has a big solenoid sticking off the side of it. The TXV I found has the same port dimensions but no solenoid. So size-wise this system should have the capacity of the entire back half of an SUV! And for what it's worth I don't know how that compares to the capacity of our cars' original system but the new TXV is sized for 1.5 tons cooling capacity. I think that's pretty adequate.
 

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bimoverde

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do you have to change the original red blade radiator fan when using the sander 508? If so what is a proper replacement?
thanks
Hervé
 
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