Air Condition in 1969 GTO - Pontiac GTO Forum
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post #1 of 4 (permalink) Old 04-02-2017, 09:04 AM Thread Starter
 
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Air Condition in 1969 GTO

I need options for installing air-conditioning in a non-factory air 1969 GTO.
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post #2 of 4 (permalink) Old 04-02-2017, 11:14 AM
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My 69 was a factory air car, but I replaced it with an aftermarket system from Classic Auto Air. Reason: It's running enough cam that I was concerned about making enough vacuum to operate all the factory valving.

When I bought mine, they didn't have a turnkey kit for 69 Pontiac A-bodies. (I think they do now) So, the folks there helped me sort of piece one together from components. That was the reason I chose them over Vintage Air. When I talked to Vintage, the conversation was very short, "No, we don't have anything for a 69 GTO." ....end of conversation. But the folks at Classic were willing to help me work something out.

I was able to adapt their system to fit my car AND work with my factory a/c controls. It took some doing, but I did it. Their a/c dash unit now is a lot nicer than what they had available when I did mine. The one now has 'electronic' controls that work off an ECM so it's much easier to calibrate them, especially when you're doing like I did and reusing your original dash controls. The one I have (all they had at the time) uses mechanical slide cables so it took me a few tries to get them attached with the right range of travel and so the positions on the various dash controls put the unit into the matching operational modes (heat, defrost, cool, temperature range, etc).

With all that, here are some things to consider: None of the aftermarket units I know of have any provision for cooling outside air. They're all in "recirculate" mode 100% of the time, meaning that they're continually cooling the air that is already inside the cabin. All of them require you to block off your outside air vents during installation. Also, at least in my case, the volume of air that my system moves is pretty wimpy even with the fan running at its highest speed. It's no where near the hurricane that my original factory system was able to blow, even though it's only feeding 3 outlets, all of them in the dash (driver, center, passenger). Everything else is blocked off and I did not install any lap vents at all. It does get the air reasonably cool, there's just not enough of it to keep up with the heat coming from the outside and through the firewall on a hot Texas day. Since I've got the engine out of my car right now, I'm strongly considering doing "something else" --- like attempting to resurrect my factory system and converting it to R134, going back to Classic to see if they have a better solution now, adding another layer of insulation to the firewall, or maybe seeing if there's some way I can get more air movement out of my present system.

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post #3 of 4 (permalink) Old 04-02-2017, 04:54 PM Thread Starter
 
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Bear, I'm in AL so have The same heat and humidity as you do. I will look around. As always thanks for the great advice.
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post #4 of 4 (permalink) Old 04-04-2017, 11:35 AM
 
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so here another option.....I took the AC out of my lemans,...deive it to Alabama sometimes as well..... have an AC recylcle machine and do all my own AC work on my modern cars..

but I wanted my 66 to be different than modern,...I wanted windows down and music up!

not sealed up in a box......

I then put a heater hose by pass in so the coolant does not flow thru the heater core 24-7 as these cars were all designed.....

you can by an AC Delete Pkg from the Pontiac Houses and get a nice clean firewall too, when you switch off the bypass the vents all blow outside air, not heated......

hey my wife recommended it, she said it is no fun with the windows up!

so just another way to go, air can be great..but you can survive and it really feels like summer in the 60's!

spend that money on a nice bluetooth digital music set out like out of sight audio.....
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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