Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 Tech/Performance
Sign in using an external account
Register Forgot Password?
Register Albums Search Today's Posts Mark Forums Read FAQ
Search
C3 Tech/Performance
V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette Sponsored by
VBP

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C6 Parts & Accessories
C5 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 04-10-2011, 01:49 PM   #1
Kevin_73
CF Senior Member
Cruise-In X Veteran
St. Jude Donor '09-'11
 
Kevin_73's Avatar
 
Member Since: Aug 2001
Location: Standing still with all my might Texas
Send a message via AIM to Kevin_73
Default Pro6Ten A/C compressor

Has anyone installed one of these in your C3?
The stock A6 compressor running R-134A is a HP hog and really loads my engine down at idle. I am hoping this will be a better option.

I have also read that our old A/C systems will run better with R-134A if the condenser is upgrade to a newer crossflow style. Which one should I look at?

Also, are there any 73 owners who have installed a VIR eliminator?
I assume this kit just locates the POA valve outside the receiver (accumulator). If so, will the POA valve need to be adjusted for use with R-134A or should it be adjusted out of the box?

Thanks
Kevin_73 is offline   Reply With Quote
Old 04-10-2011, 02:19 PM   #2
HamadUP
CF Senior Member
St. Jude Donor '08
Support Corvetteforum!

 
HamadUP's Avatar
 
Member Since: Jan 2003
Location: Doha
Default

If you are not too concerned about the stock look, definitely go with the pro6ten compressor, it will be lighter on the engine and will save you some engine bay space, I personally converted to a Sanden 508 but I think both will do the job as required.

You really have to have a parallel flow condenser when you use the R134a, as the conventional condenser will tend to rise the pressure of the refrigerant and will force you not fill the system to %100, which will affect the system's efficiency.

What I did to upgrade my stock A/C was to have a Sanden comp. with brackets and a parallel flow condenser and a POA valve eliminator, now my A/C is literally freezing me to death on long journeys.
HamadUP is offline   Reply With Quote
Old 04-10-2011, 09:37 PM   #3
Kevin_73
CF Senior Member
Cruise-In X Veteran
St. Jude Donor '09-'11
 
Kevin_73's Avatar
 
Member Since: Aug 2001
Location: Standing still with all my might Texas
Send a message via AIM to Kevin_73
Default

Quote:
Originally Posted by HamadUP View Post
If you are not too concerned about the stock look, definitely go with the pro6ten compressor, it will be lighter on the engine and will save you some engine bay space, I personally converted to a Sanden 508 but I think both will do the job as required.

You really have to have a parallel flow condenser when you use the R134a, as the conventional condenser will tend to rise the pressure of the refrigerant and will force you not fill the system to %100, which will affect the system's efficiency.

What I did to upgrade my stock A/C was to have a Sanden comp. with brackets and a parallel flow condenser and a POA valve eliminator, now my A/C is literally freezing me to death on long journeys.
Is there a parallel flow condenser that will fit with the stock brackets and hoses, or with a minimum of modification?
Kevin_73 is offline   Reply With Quote
Old 04-11-2011, 01:16 AM   #4
HamadUP
CF Senior Member
St. Jude Donor '08
Support Corvetteforum!

 
HamadUP's Avatar
 
Member Since: Jan 2003
Location: Doha
Default

Quote:
Originally Posted by Kevin_73 View Post
Is there a parallel flow condenser that will fit with the stock brackets and hoses, or with a minimum of modification?
Yes, Vintage Air are selling a condenser kit that contains a condenser with the C3 brackets and a dryer can, the kit will fit with no modifications.
HamadUP is offline   Reply With Quote
Old 04-25-2011, 02:55 PM   #5
jcloving
CF Senior Member

 
jcloving's Avatar
 
Member Since: Dec 2010
Location: Winston Salem NC
Default

Quote:
Originally Posted by HamadUP View Post
Yes, Vintage Air are selling a condenser kit that contains a condenser with the C3 brackets and a dryer can, the kit will fit with no modifications.
HamadUP, could you provide the PN for that condenser kit?
jcloving is offline   Reply With Quote
Old 04-26-2011, 09:36 AM   #6
sweeet76
CF Senior Member
 
sweeet76's Avatar
 
Member Since: May 2008
Location: pensacola fl
Default

If you don't mind me jumping in, I just got the same kit yesterday shipped through FedEx. The Vintage Air condenser kit with drier is stock # 021073 (205.00) An A/C mechanic I know advised me to add an electric fan set up in front of the condenser. This will also bring vent temps down. The fan kit # 302686-cca
(179.00) and the last item VA suggested was a male trinary switch (35.50).
This switch allows the fan to cycle on and off.
Good luck with your project.

Bill
sweeet76 is offline   Reply With Quote
Old 04-26-2011, 09:42 AM   #7
jcloving
CF Senior Member

 
jcloving's Avatar
 
Member Since: Dec 2010
Location: Winston Salem NC
Default

Quote:
Originally Posted by sweeet76 View Post
If you don't mind me jumping in, I just got the same kit yesterday shipped through FedEx. The Vintage Air condenser kit with drier is stock # 021073 (205.00) An A/C mechanic I know advised me to add an electric fan set up in front of the condenser. This will also bring vent temps down. The fan kit # 302686-cca
(179.00) and the last item VA suggested was a male trinary switch (35.50).
This switch allows the fan to cycle on and off.
Good luck with your project.

Bill
Sweet76, is there really room on the front of the condenser for a fan? Will the hood hit it? Would you mount it behind the condenser instead? I think there is room between there and the radiator. I have a 76 too and am interested in getting a parallel flow condenser.
jcloving is offline   Reply With Quote
Old 04-26-2011, 11:09 AM   #8
sweeet76
CF Senior Member
 
sweeet76's Avatar
 
Member Since: May 2008
Location: pensacola fl
Default

the instructions are specific for a 68-76 vette and it shows the fan mountef to the front of the condenser with no modifications. There is a page showing an optional hood prop modification for 68-71 years. if you want to pm a fax number, I will fax pictures and instructions.

Bill
sweeet76 is offline   Reply With Quote
Old 04-26-2011, 11:49 AM   #9
Rotonda
CF Senior Member

 
Rotonda's Avatar
 
Member Since: Sep 2006
Location: Rotonda FL
Default

I have a 16x25" parallel flow condenser from NOSTALGIC AIR PARTS - $99.

http://www.nostalgicairparts.com

I have a 77 and I used the two bars that mounted the original condenser and used some 'Z' channel to connect the built-in brackets on the parallel flow to the original mounts.

I also used a trinary switch connected to my DCC fan controller to get full flow from my Mark VIII fan. This fan draws enough that you don't need any booster fans.
Rotonda is offline   Reply With Quote
Old 04-26-2011, 12:28 PM   #10
TopGunn
CF Senior Member
 
TopGunn's Avatar
 
Member Since: May 2005
Location: Somers CT
Default

Why don't you guys just use R12 and avoid the need for new condensors, fans and other stuff. Plenty of R12 available and refrigeration unit was designed for it.
TopGunn is offline   Reply With Quote
Old 04-26-2011, 01:07 PM   #11
paul 74
Ontario, Canada
Support Corvetteforum!
 
paul 74's Avatar
 
Member Since: Aug 1999
Default

Quote:
Originally Posted by TopGunn View Post
Why don't you guys just use R12 and avoid the need for new condensors, fans and other stuff. Plenty of R12 available and refrigeration unit was designed for it.
Illegal in Canada.
paul 74 is offline   Reply With Quote
Old 04-26-2011, 01:37 PM   #12
Kevin_73
CF Senior Member
Cruise-In X Veteran
St. Jude Donor '09-'11
 
Kevin_73's Avatar
 
Member Since: Aug 2001
Location: Standing still with all my might Texas
Send a message via AIM to Kevin_73
Default

Quote:
Originally Posted by TopGunn View Post
Why don't you guys just use R12 and avoid the need for new condensors, fans and other stuff. Plenty of R12 available and refrigeration unit was designed for it.
Right after I bought my vette I rebuilt the A/C system. New A6 compressor, new high pressure hoses, new o-rings, new VIR, and had both the condenser and evaporator pressure tested. I had it charged with R-12 at a cost of $200. The A/C worked relatively well for a couple of weeks. Then one day not long after driving the vette I was inside the house and heard a loud POP and hiss coming from the garage. The high pressure hose that I had installed had burst because it was made with the wrong type of rubber hose. Two hundreds bucks worth of R-12 gone.
I decided when I rebuilt it that I was going to use R-134A because it is about 1/4 the cost, and I can buy it legally and charge it myself.

I just want to have a A/C system that cools well in 100 degree+ Texas summers, doesn't bog the engine too much for stop and go driving, is reliable, and serviceable by myself. The original R-12 system was marginal at best, but I think with modern components I can get what I want.


All that being said. My new Pro6ten compressor, VIR eliminator, and cross flow condenser arrived yesterday from Old Air Products. I will start working on installing them next week and I will try to take pics and post a thread with the progress.
Kevin_73 is offline   Reply With Quote
Old 04-26-2011, 02:51 PM   #13
sweeet76
CF Senior Member
 
sweeet76's Avatar
 
Member Since: May 2008
Location: pensacola fl
Default

My 76 already had the R-134A system installed when I bought it 8 years ago.Would not make much sense to change back at this point.
sweeet76 is offline   Reply With Quote
Old 04-26-2011, 09:42 PM   #14
TopGunn
CF Senior Member
 
TopGunn's Avatar
 
Member Since: May 2005
Location: Somers CT
Default

Quote:
Originally Posted by paul 74 View Post
Illegal in Canada.
No kidding! Then it must be illegal to repair an existing system??
It's illegal here to make a new system or to generate new R12 but the recovered stuff can still be used. In fact it seems to be more available now then before because of the low demand.
You guys are tough up there!!
TopGunn is offline   Reply With Quote
Old 04-26-2011, 09:49 PM   #15
TopGunn
CF Senior Member
 
TopGunn's Avatar
 
Member Since: May 2005
Location: Somers CT
Default

Quote:
Originally Posted by Kevin_73 View Post
The high pressure hose that I had installed had burst because it was made with the wrong type of rubber hose. Two hundreds bucks worth of R-12 gone.
.
I know how you feel mine did the same thing shortly after I got the car and recharged the system. I didn't have the smarts to replace the hoses so mine blew out because of an old one. I replaced it and recharged the system and it's been fine for many years. Good luck with your retrofit
TopGunn is offline   Reply With Quote
Old 04-26-2011, 09:49 PM
 
Go Back   Corvette Forum > C3 Corvettes, 1968 - 1982 > C3 Tech/Performance
Reload this Page Pro6Ten A/C compressor
 
 
 
Reply

Tags
134a, 1971, a6, ac, c3, compresser, compressor, corvette, high, pro6ten, pro6tena6, proformance, reviews, upgrade, vir


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -4. The time now is 08:08 PM.


Emails & Password Backup

Search Engine Friendly URLs by vBSEO 3.5.2