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05-16-2020
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#1 |
 Join Date: Mar 2013
Location: Roswell, GA
Posts: 234
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R134a Conversion for 1992?
I have a leak somewhere in my system. I have not identified the source as of yet. I received a low refrigerant code 9 and verified with gauges. Yesterday I charged it with EnviroSafe refrigerant up to about 40psi low side and 200 psi high side at 85F ambient. It took about 6 ounces. It had dye in it but I did not inspect with a UV light yet. After a few minutes of driving the clutch disengaged and the code came back. For it to bleed down that quickly one would think it must be a substantial enough leak to easily identify. Before adding the EnviroSafe, the system had about 100 psi on the high side when forced to run. I have had this low pressure code for about a year so I am confused as to why it bleed down so quickly. I was expecting to find a small leak somewhere at some point. Anyway, is there a conversion kit to 134a for the pre-1994 cars? Could I swap in a compressor, accumulator, condenser and orifice tube for a 1995 ZR1 if they exist?
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1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp |
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05-16-2020
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,155
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Re: R134a Conversion for 1992?
if it is truly leaking that fast it is a high side leak. I had a 1999 Grand Prix GTP, one day it blew cold next day it was warm.. charged it and the same thing. I found my Condenser was leaking.
A high side leak will push the refrigerant out much faster..
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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05-16-2020
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#3 |
 
Join Date: Sep 2018
Location: Groton, CT
Posts: 392
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Re: R134a Conversion for 1992?
I did this swap on my 92. I used 95 parts.
Here's the catch..... you need ALL new hoses if you use 95 parts. All treaded couplings are a different size than the R12 system. Took me months to get it all sorted. No one makes the correct hose set for the 95 R-134a compressor head. I was a bit OCD about using the 95 system design. Others have had good luck with the simple conversion kits. Mark H. should have everything you need.
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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05-16-2020
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#4 |
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Join Date: Sep 2018
Location: Groton, CT
Posts: 392
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Re: R134a Conversion for 1992?
Here are the threads from my conversion.
http://zr1.net/forum/showthread.php?t=30711 http://zr1.net/forum/showthread.php?t=30748
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige Last edited by Subfixer; 05-16-2020 at 06:02 PM. |
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05-17-2020
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#5 | |
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Join Date: Mar 2013
Location: Roswell, GA
Posts: 234
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Re: R134a Conversion for 1992?
Quote:
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1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp |
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