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Old 08-09-2013, 12:17 PM
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Evaporator question

OK. Don't laugh, but I have a question regarding place of evaporator with heater core. As many of you know, I am build a tube chassis, 1969 VW Type III Squareback with a small block Chevy. My question is. Being this car is going to be a two seater, what are opinions of putting my evaporator behing the front seats and then running hoses for defrosters and a/c vents in the dash, or fabricate them to where the vents blow from rear to front via custom fitted ductwork at floor level. I know this sounds like a stupid question, but I will be cramped for space with my dash. Also, how is Vintage Air? Can anyone recommend some other a/c companies?

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Old 08-09-2013, 01:08 PM
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the first 3 pictures are me just joking . the last 2 are of vintage ac units.
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Old 08-09-2013, 01:20 PM
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Evaporator

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the first 3 pictures are me just joking . the last 2 are of vintage ac units.
I really like your sense of humor. That's what's nice about this forum. Always get a lot of help. All kidding aside, when I was a VW dealer mechanic, we used to install an a/c unit called a "Heat transfer".The evaporator went behind the back seat, in the cargo area, of VW Bugs. The cold air was directed from the unit, to the front of the car, via vents that blew the air along the roofline. Not one of VW's better ideas. They had a few other units that the evaporator attached to the bottom of the dash. Mind you now, they didn't have heater cores in the unit, so, they were relatively thin.

I'd really like to put my setup behind the front seats as I have the room and could also incorporate an area for the water hoses, refrigerant lines and duct vents to run through a tunnel.
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Old 08-09-2013, 01:27 PM
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well to me it seems that you have it worked out. i do not see a problem if it comes from the front or back. they have units like this in vans ,suburbans & others. any more pictures of the Vdub?
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Old 08-09-2013, 01:48 PM
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Our 2004 Chevt Tahoe has a rear air evaporator unit. I see no problem whatsoever locating the evaporator in the rear and directing the air forward. Sounds like a cool project, post some pics.

Vince
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Old 08-09-2013, 01:54 PM
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well to me it seems that you have it worked out. i do not see a problem if it comes from the front or back. they have units like this in vans ,suburbans & others. any more pictures of the Vdub?












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Old 08-09-2013, 02:35 PM
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Evaporator

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well to me it seems that you have it worked out. i do not see a problem if it comes from the front or back. they have units like this in vans ,suburbans & others. any more pictures of the Vdub?
I guess that as long as the fan can get air, for cabin recirculation, it should work OK
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Old 08-09-2013, 03:15 PM
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90's grand am's and clones have vents for heat/ac that ran under seats to the back they are like 5-6" wide and 1/2 tall. you could reverse them to have ac at your legs/feet..
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Old 08-11-2013, 02:17 PM
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OK.While we are on the subject of a/c's, I have another question. What is the general feeling on mounting the condenser, with a fan on it, in a remote position? I would still have to get fresh air moving across it, right? Also, what about laying the condenser flat. I remember, way back when, when I was a dealer VW/Porsche/Audi mechanic, on the VW Bugs, we used to install 2 small condensers flat under the car with a cooling fan on each one. On 911 Porsches, we installed the condenser on the engine deck lid and it drew it's air from the intake grills on the lid.
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