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#2605350 - 01/12/19 09:57 AM A/C condenser: new or old?
DGS Offline
mopar

Registered: 07/08/05
Posts: 527
Loc: Graz, Austria
When adding A/C to your car would you rather get a new condenser (aluminum most likely) or use a nice original condenser (brass?)?
It seems the old ones are of a better quality?

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#2605358 - 01/12/19 10:13 AM Re: A/C condenser: new or old? [Re: DGS]
135sohc Offline
mopar

Registered: 02/19/12
Posts: 578
Loc: SoMd, USA
Original always fits the best and most likely made better.

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#2605368 - 01/12/19 10:52 AM Re: A/C condenser: new or old? [Re: DGS]
csk Online   work
pro stock

Registered: 08/13/11
Posts: 1306
Loc: KATY TEXAS
The new one that is made to use r134a, NOT R12 like the original one is.


Edited by csk (01/12/19 10:52 AM)
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#2605375 - 01/12/19 10:57 AM Re: A/C condenser: new or old? [Re: DGS]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
I have my original but will install a new aluminium replacement, but direct stock replacement, exactly same piece than original

this is for 73/74 Charger

https://www.ebay.com/itm/73-74-Dodge-Ply...aeVlC:rk:1:pf:0

Aluminium disipates better the heat so should be better to get more cold into the cab, I guess. I hope my car will be working this year to check it.

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#2605383 - 01/12/19 11:10 AM Re: A/C condenser: new or old? [Re: DGS]
a12rag Offline
top fuel

Registered: 04/23/07
Posts: 2218
Loc: Calgary, Alberta Canada
I got an NOS unit for my car when I did it . . . . although the original in the car still looked good, I did not want to take a chance . . . pretty sure the OE and NOS unit were Aluminum . . .

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#2605393 - 01/12/19 11:32 AM Re: A/C condenser: new or old? [Re: a12rag]
moparx Offline
Dreaming of implants

Registered: 09/03/03
Posts: 10163
Loc: north of coder
Originally Posted By a12rag
I got an NOS unit for my car when I did it . . . . although the original in the car still looked good, I did not want to take a chance . . . pretty sure the OE and NOS unit were Aluminum . . .


i was going to say the same thing. back in my junkyard ownership days, [1972-1984] we sold radiators [brass/copper] and condensers [aluminum] separately for scrap.
i can't remember ever seeing a copper/brass condenser from any american manufacturer.
beer

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#2605452 - 01/12/19 12:58 PM Re: A/C condenser: new or old? [Re: moparx]
DGS Offline
mopar

Registered: 07/08/05
Posts: 527
Loc: Graz, Austria
Originally Posted By moparx
Originally Posted By a12rag
I got an NOS unit for my car when I did it . . . . although the original in the car still looked good, I did not want to take a chance . . . pretty sure the OE and NOS unit were Aluminum . . .


i was going to say the same thing. back in my junkyard ownership days, [1972-1984] we sold radiators [brass/copper] and condensers [aluminum] separately for scrap.
i can't remember ever seeing a copper/brass condenser from any american manufacturer.
beer


Good to know! I thought they were brass like the radiators are.

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#2605457 - 01/12/19 01:11 PM Re: A/C condenser: new or old? [Re: DGS]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
my original ( Charger 74 ) IS NOT aluminium... is iron

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#2605520 - 01/12/19 03:28 PM Re: A/C condenser: new or old? [Re: DGS]
DaytonaTurbo Offline


Registered: 02/26/03
Posts: 21129
Loc: Manitoba, Canada
I would use a new one unless you are charging the system with R12. R12 is a better refrigerant that R134A, so in order to dump the same amount of heat, R134A requires a more efficient condenser. Modern universal, retrofit and reproduction condensers are made for R134A so your vintage R12 condenser may not cool well especially at low speeds.

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#2605530 - 01/12/19 03:53 PM Re: A/C condenser: new or old? [Re: DGS]
Supercuda Offline
I want my mommy!!

Registered: 09/04/07
Posts: 14477
Loc: up yours
Now sure how a more efficient condenser would cool worse with R12 than R134.
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#2605683 - 01/12/19 09:34 PM Re: A/C condenser: new or old? [Re: DGS]
GoodysGotaCuda Offline
5.7L Hemi, 6spd

Registered: 11/23/04
Posts: 24615
Loc: Texas
The increased surface area accompanied with a stacked plate [modern] style condenser is a more efficient design than a tube and fun [old].

Unless OEM-like aesthetics take priority, I don't see why you would run a tube and fin. Aside from potentially being cheaper.
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#2605791 - 01/13/19 08:24 AM Re: A/C condenser: new or old? [Re: DGS]
TooMany62s Offline
top fuel

Registered: 01/24/03
Posts: 1623
Loc: Greer, SC
I converted my old pickup from r12 to r134 a long time ago. I also changed to a rotary compressor at that time. The AC worked OK but not as good as before. An AC expert friend of mine convinced me to change to a condenser designed for r134. I changed the condenser to one specifically intended for r134. The difference was remarkable. My pickup cools much better now.

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#2605792 - 01/13/19 08:26 AM Re: A/C condenser: new or old? [Re: NachoRT74]
TooMany62s Offline
top fuel

Registered: 01/24/03
Posts: 1623
Loc: Greer, SC
Originally Posted By NachoRT74
my original ( Charger 74 ) IS NOT aluminium... is iron
I think that would be the compressor?

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#2605810 - 01/13/19 09:12 AM Re: A/C condenser: new or old? [Re: TooMany62s]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
Originally Posted By TooMany62s
Originally Posted By NachoRT74
my original ( Charger 74 ) IS NOT aluminium... is iron
I think that would be the compressor?


no, I'm talking about the condenser. It got a crack once and was fixed at the Y on top passenger side. Is the same iron tube as far I could tell used on gas and tranny oil colling lines.

But definitelly is not aluminium

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#2605812 - 01/13/19 09:15 AM Re: A/C condenser: new or old? [Re: GoodysGotaCuda]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
Originally Posted By GoodysGotaCuda
The increased surface area accompanied with a stacked plate [modern] style condenser is a more efficient design than a tube and fun [old].

Unless OEM-like aesthetics take priority, I don't see why you would run a tube and fin. Aside from potentially being cheaper.


there are two kinds of these... serpent tube which is the original kind and parallel tubes which has being told is more efficient ?.



In my case I'm going original design but aluminium just right to keep same original look.

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#2605908 - 01/13/19 12:22 PM Re: A/C condenser: new or old? [Re: NachoRT74]
moparx Offline
Dreaming of implants

Registered: 09/03/03
Posts: 10163
Loc: north of coder
Originally Posted By NachoRT74
Originally Posted By TooMany62s
Originally Posted By NachoRT74
my original ( Charger 74 ) IS NOT aluminium... is iron
I think that would be the compressor?


no, I'm talking about the condenser. It got a crack once and was fixed at the Y on top passenger side. Is the same iron tube as far I could tell used on gas and tranny oil colling lines.

But definitelly is not aluminium


i have seen fittings of a type of steel silver soldered, or brazed, onto an aluminum condenser tube. the reason being, that steel and aluminum will corrode together, making removal of the threaded fitting impossible without destroying one, or both threaded fittings. we always chopped those off with bolt cutters before tossing them in the scrap pile. maybe your condenser was like that ? an iron condenser would weigh a ton [figuratively speaking], and i would think as thin as the tube mass is, would have cracking issues from vibrations that are always present. maybe export stuff was/is different than anything i have experience with ? shruggy or possibly, your condenser was a light weight steel tube design ? occasionally, we would run across one of those, but could immediately identify it based on just how heavy it "felt", as opposed to the "normal" aluminum condensers.
beer

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#2606219 - 01/13/19 08:58 PM Re: A/C condenser: new or old? [Re: DGS]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
I have had both in hands, my original and the new aluminium one I have... the original IS NOT ALUMINIUM. tsk beer

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#2606236 - 01/13/19 09:37 PM Re: A/C condenser: new or old? [Re: DGS]
Supercuda Offline
I want my mommy!!

Registered: 09/04/07
Posts: 14477
Loc: up yours
put a magnet on it
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They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.

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#2606264 - 01/13/19 10:26 PM Re: A/C condenser: new or old? [Re: DGS]
NachoRT74 Offline
master

Registered: 08/14/07
Posts: 5253
Loc: Caracas, Venezuela, SouthAmeri...
The fix/weld was made in fact with acetylene gas and copper wire! ( dunno how you call that kind of welding job ). That is not posible with aluminium.

( my car is 1k miles from home )

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#2606447 - 01/14/19 11:18 AM Re: A/C condenser: new or old? [Re: NachoRT74]
moparx Offline
Dreaming of implants

Registered: 09/03/03
Posts: 10163
Loc: north of coder
Originally Posted By NachoRT74
The fix/weld was made in fact with acetylene gas and copper wire! ( dunno how you call that kind of welding job ). That is not posible with aluminium.

( my car is 1k miles from home )


not doubting you at all nacho. just stating my personal experience.
today, there are so many methods of joining, or repairing, unlike materials, [with, or without heat] and since i wasn't there at the time, i can only guess.
my only question is whether your original was "iron".
i'll bet our individual interpretation of material is what is causing the confusion.
"iron" to me is usually a part made of the same [type] of material an intake or exhaust manifold is made out of, or brake master cylinder, of which parts are cast.
to cast, or form, an "iron" condenser would be quite the task, plus be brittle in use as i have previously stated.
steel, on the other hand, would be easy to fab into a condenser, and be very rugged in use. i'll bet that is what you have, and i have lost that fact in translation.
sorry if i have unnecessarily ruffled your feathers ! that was not my attempt. please forgive.
beer

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