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Adjustable evaporator thermostat

aliaZ on Mon May 28, 2012 9:03 AM User is offline

Year: 1993
Make: Nissan
Model: 300zx

I'm looking to replace my TSV with an adjustable evaporator thermostat. Does anyone make an aftermarket adjustable that is preferably thermistor based?

I've searched, but the only thing I've found are capillary tube based...but even these are usually dead links


TRB on Mon May 28, 2012 10:01 AM User is offlineView users profile


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94RX-7 on Mon May 28, 2012 4:04 PM User is offline

I take it the TSV is bad and you can't find a replacement? A TSV/EPR/POA type setup will give you the best cooling performance....I'd say keep it if you can.

aliaZ on Mon May 28, 2012 5:16 PM User is offline

The original TSV is till working, but is for R12. If I could find an R134a TSV that would be ideal, but it isn't available.

If I could find a way to recalibrate the TSV for R-134a that would be great too. Maybe drop in a weaker spring to drop the evaporator pressure a wouldn't take much

u118224 on Tue May 29, 2012 11:01 AM User is offline

I came across a website last week that converts expansion valves from r12 to r134a. I'll see if I can find it again.

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