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Can I stack condensors?

ursenj on Sat January 12, 2008 12:13 AM User is offline

Year: 1987
Make: BMW
Model: 325
Engine Size: 2.7
Refrigerant Type: R134a
Ambient Temp: 105
Country of Origin: United States

Question for all of you A/C guru's. I have an 1987 BMW that I put a new Seltek Compressor and P/Flow condenser in this last summer but when it get really hot like 95+ it just doesn't cool as well as i would have like. I live in southern Utah it gets really hot like like 110 in the summer.

THIS is what i ordered from ACkits.

I used the 14x20.5 condenser, but i am wondering if may have not installed it right. I was not able to get right next to the radiator so there is about a 3 inch gap between the condenser and the radiator
Here is a picture of the install. I also put a 14" fan in front. It is not in the picture.

SO i am wondering if i am not getting enough air through the condenser OR do i need more condenser for my high temp environment? which is where my question of can I stack two condensers on top of each other to get more cooling.

TRB on Sat January 12, 2008 2:16 AM User is offlineView users profile

I would not have the gap that is shown (move up) and would see what can be done to get it closer to the radiator.

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bohica2xo on Sat January 12, 2008 2:21 AM User is offline

You have enough condensor for the job, but the air is not going through it.

If there is a 3 inch gap between the radiator & condensor, you need to find a way to seal that gap. Normally this is done with some foam tape, but with a gap that wide it might be better to fabricate some rigid material. Open cell foam tape about 1/2 inch thick should be used for where you contact the radiator face to avoid damaging the radiator.

You could build patterns from cardboard & trial fit them for testing, but I would recomend a more weatherproof material for the final part. I suppose you could use some 1x3 inch foam strip, but it may difficult to keep in place long term.


B.

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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

ursenj on Sat January 12, 2008 10:41 AM User is offline

Cool,..

That is what i thought,.I went a little to large on the condenser and did not account for the long bends on the hose connectors. I was hoping to get the condenser close to the radiator but you can see the I have frame in the way.

I have a sheet of 3" stiff black foam at work i think can disappear. I used it to fill the air gaps behind my new downflow Liebert Computer Room A/C units.

I will give it a try and post back the results.

Thanks you for your help.

ursenj on Sat January 12, 2008 12:12 PM User is offline

One other questions that i just thought of, and the only reason i am asking is i have other people on bimmerforums.com that want me to do a write up on this. The BMW e30 body style (84-91) has a large group of enthusiasts and i lot of people would do this same thing if they had some basic instructions.

If i went with the 14x15 P/flow condenser would that have been enough? I would been able to do a better install and get it right up next to the radiator. Would the smaller P/flow dump enough heat? I understand that there is alot of factors involved. Just asking the question.

Again thank you!!

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