Upgrade a/c on 78
Thread Starter
Intermediate
Joined: Apr 2011
Posts: 26
Likes: 0
From: Montclair NJ
Upgrade a/c on 78
Car is still apart. Need to upgrade a/c......please give me all new parts needed including new compressor brand Type. Been looking for good thread but search tool isn't working out to well.
Racer
Joined: Apr 2006
Posts: 322
Likes: 0
From: Rockford MI
I rebuilt the system in my 78 to factory specs. Found a new, not rebuilt, Delphi compressor at NAPA. New rubber hose. Replaced evaporator, flushed system, even refilled it with R-12. I found and air conditioning guy in town that had R-12. He recommended using that because that is what the system was designed for.
The system works great, keeps you cool in 90+ degree days.
The system works great, keeps you cool in 90+ degree days.
Drifting
Joined: May 2005
Posts: 1,968
Likes: 44
From: East TN
When I had mine apart I switched over to R134A and a serpentine setup. http://forums.corvetteforum.com/c3-t...coversion.html
I bought the R134A conversion parts and a 87' vette ac compressor from Ecklers.
Also, upgrade the ground wire going to your ac/ heat fan to 10 gauge and run it to a good ground like the frame. It'll work much better with a good ground.
I bought the R134A conversion parts and a 87' vette ac compressor from Ecklers.
Also, upgrade the ground wire going to your ac/ heat fan to 10 gauge and run it to a good ground like the frame. It'll work much better with a good ground.
Last edited by MIKE80; Aug 28, 2013 at 07:06 AM.
Burning Brakes
Joined: Dec 2010
Posts: 945
Likes: 10
From: Winston Salem NC
I bought the pro6ten compressor. I love it. Polished aluminum. 10lb lighter than the A6. I went with R-134, new steel and rubber lines. VIR eliminator. Parallel flow condenser. C4 fan with spacer.
Make sure your max ac setting closes the plenum door and opens the recirc door by the pass. kick panel.
Make sure your max ac setting closes the plenum door and opens the recirc door by the pass. kick panel.
