R134A compressors?
Thread Starter
Racer
Joined: Aug 2000
Posts: 364
Likes: 3
From: Van Wert Ohio
R134A compressors?
Has anyone seen a kit to install a Sandon (or any R134A) compressor to a C3? Vintageair has a kit for up to 67s but no C3. I had my R12 system converted last week and am pretty disapponted in the results. Cool but not cold. :sad:
Safety Car
Joined: Oct 1999
Posts: 4,101
Likes: 10
From: NorCal
Re: R134A compressors? (vett79)
Give us a few more details as to exactly what was done. I assume you have the stock system with the R4 GM compressor. My experience converting these systems has been quite good, so I'm curious what's not right.
If you do switch, Sanden or Sankyo (axial) compressors are good units.
Hans
If you do switch, Sanden or Sankyo (axial) compressors are good units.
Hans
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: R134A compressors? (vett79)
It would be cheaper to go back to R12. The R4 is a very good compressor. Light and simple. I have a rebuilt stock system using R12...and I live in one of the toughest "proving grounds" in the USA!!!
[Modified by page62, 8:44 PM 5/18/2004]
[Modified by page62, 8:44 PM 5/18/2004]
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Re: R134A compressors? (vett79)
The stock system can be made as cold as you'll ever need with R134a. Mine makes vent temps in the low 40's on a 90F day. On the later C3's with the CCOT system you need to adjust the cycling switch when going to R134a. If you don't adjust it you'll have 10-15 dgr warmer air out the vents. You should also get a smart VOV (variable orifice valve) instead of the stock orifice tube.
Instructor
Joined: Feb 2004
Posts: 133
Likes: 0
From: Kaysville Utah
Re: R134A compressors? (zwede)
On the later C3's with the CCOT system you need to adjust the cycling switch when going to R134a. If you don't adjust it you'll have 10-15 dgr warmer air out the vents. You should also get a smart VOV (variable orifice valve) instead of the stock orifice tube.
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Re: R134A compressors? (lostpatrolman)
What does the VOV do and is it recommended for early c3s?
Think of the orifice tube as the nozzle on a spray can. It detemrines how much refrigerent flows and the pressure differential between high and low side. The VOV has the ability to change its flow rate depending on conditions. More efficient and an inexpensive upgrade. I think they're $15-$20.
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Re: R134A compressors? (Willis)
What's involved in doing this procedure? I converted my 81 several years ago and have been quite pleased with the results, but colder air would be awesome. Where is the cycling switch and how do you adjust?
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Thread Starter
Racer
Joined: Aug 2000
Posts: 364
Likes: 3
From: Van Wert Ohio
Re: R134A compressors? (zwede)
I figured it out :hurray: The heater valve apparantly wasn't working so for the summer I pulled the hoses and put plugs in the manifold and water pump. Now it's plenty cold.
Team Owner
Joined: Dec 1999
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From: Florida
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Re: R134A compressors? (Master Ho)
I plan to install the Sanden 508 in the next couple of months. The issues are brackets and hoses.
Check out http://www.hotrodair.com
They have it all. :)
Check out http://www.hotrodair.com
They have it all. :)
