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Old 07-07-2009, 12:40 AM
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A/C in the trunk

I am thinking of installing an air conditioner unit in the trunk of my '48 Chevy Fleetline Aerosedan when I get to that point of construction. Since cool air is heavier I want to have an overhead consul for the air ducts to provide equalized cooling. I am just in the planning stage now so any ideas will be welcome.

Al

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Old 07-07-2009, 06:49 AM
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I've often considered doing this in my '32 pickup and putting it in the bed, so I'll be interested in hearing how yours comes out. I'd also be interested in hearing from any A/C experts on the effect of having those extra long hoses from the compressor to the evaporator. That's the only real problem area that comes to my mind.
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Old 07-07-2009, 06:59 AM
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I vaguely remember a GM vehicle (Caddy, I believe) that used clear plastic tubing built into the inside of the "B"-pillar as a duct for the heat/AC to get to the back seat passengers.

I can't remember if this extended back to the rear window or not- but I think there was a vent of some sort back there as well.

Of course, the actual AC compressor and condenser was in the normal location under the hood, but I thought this deal was interesting.
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Old 07-07-2009, 07:10 AM
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Let's put this in General Rodding Tech.

Dan
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Old 07-07-2009, 07:56 AM
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Quote:
Originally Posted by cboy
I'd also be interested in hearing from any A/C experts on the effect of having those extra long hoses from the compressor to the evaporator.
Should be no different than in SUV's with rear auxiliary a/c and rear mounted evaporators.
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Old 07-07-2009, 08:54 AM
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It has been done on a lot of street rods.You want to make sure your pulling air from the inside of the car,And not the trunk..
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Old 07-07-2009, 08:07 PM
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cobalt 327 is correct. The 55 caddy had plastic vents running up from the trunk thru the rear deck to the headliner I believe.
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Old 07-07-2009, 08:40 PM
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Quote:
Originally Posted by Cape Cod Bob
The 55 caddy had plastic vents running up from the trunk thru the rear deck to the headliner I believe.
Ahh- THANKS for that. I was just a little guy when I saw this. Our neighbor owned the car, and a '55-ish Caddy would fit my memory to a tee.
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Old 07-07-2009, 10:30 PM
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You should see the A/C hoses on a DeLorean.
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Old 07-08-2009, 02:38 AM
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Thanks to all of you. I Thought it might work I'll have to figure out how to get the condenser in the trunk and circulate the inside air. I still have a long way to go before I get to that point but one has to plan ahead. The trunk area is huge on this car so I should have plenty of room to construct a cabinet to house it back there.

Al
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Old 07-08-2009, 05:32 AM
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If you look at the arrangement on an SUV, the condenser is still in front of the engine, but the 2nd evaporator is in the back of the vehicle. This does not seem to cause any problems.

The condenser has to have have good air flow through it to work, and that would be hard to do unless you somehow mount it outside the trunk. It also has to be vertical, so you can't mount it under the vehicle like an oil or trans cooler.

Bruce
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Old 07-08-2009, 06:24 AM
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My Suburban has front and rear AC. It has black plastic tubes that run from the right rear corner to both the floor and the headliner, behind the front and middle row seats. It moves alot of air and cools very well. Nostalgicautoair has some nice in and under dash units as well as aux (rear) units and roof/floor units. ACkits.com has some too, and classicautoair. I am not associated with these sites at all, i have just been looking at universal AC kits alot lately.
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Old 07-08-2009, 06:45 AM
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Quote:
Originally Posted by Gr8 '48 bow tie
Thanks to all of you. I Thought it might work I'll have to figure out how to get the condenser in the trunk and circulate the inside air. I still have a long way to go before I get to that point but one has to plan ahead. The trunk area is huge on this car so I should have plenty of room to construct a cabinet to house it back there.

Al

I wouldn't put the Condenser in the trunk..You want to leave it up front,And just put the unit in the trunk..
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Old 07-08-2009, 09:07 AM
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Hi,From GM AC History

General Motors offered factory-installed air conditioning systems in its Cadillac, Buick, and Oldsmobile automobiles beginning in 1953. These units were designed by Frigidaire and were a conventional refrigeration system adapted to automobiles. The compressor, condenser, and receiver-dryer were located in the engine compartment while the evaporator-blower unit was located in the forward trunk area; the air conditioning controls were located at the instrument panel. Cold air was delivered through outlets in the rear package shelf or through ducts/outlets in the roof headliner.
Harrison developed an entirely front-mounted air conditioning unit which was first installed in 1954 Pontiacs. Oldsmobile and Chevrolet followed in 1955, Buick in 1956, but Cadillac retained the trunk units through 1956.
Automobile air conditioning in the 1950's was a wonderful luxury. The Frigidaire system in this 1955 Coupe de Ville still operates as new! The link is a picture of a caddy's AC air intake & rear AC vent I think the year previous to the picture had the clear tubes going to the vents in the headliner.

http://www.rfci.net/airliner/Resources/55cadaclabel.jpg
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Old 07-12-2009, 02:31 PM
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Trunk Mounted A/C

When you get closer to planning your A/C project, you should check out the products from Vintage Air...they have a couple of units specifically for trunk-mounting, inlcuding their "Trunk Monster" which should have the capacity you need even for a big ride like yours.
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