924Board.org

[ropndave]

First to qualify this inquiry please remember that I live in Las Vegas summer Temps of 115. I would like to research an aftermarket AC conversion for my 77 924. What do you think and whats available. I'm not particularly concerned by loss of max torque.

[kaffine]

Hello. Nice to see someone else that appreciates AC. I'm not familiar with aftermarket AC systems. I should have an HVAC housing and evaporator possibly the condensor from an 78 924. PM me and I'll check friday to see what all I have.
_________________
80 924
80 931

The best desciption of an atom boils down to something unknown is doing we don't know what.
Sir Arthur Eddington

[Roger]

I an not sure anyone sells a complete kit. The factory manual has step by step instructions on the install. I am a novice when it comes to A/C but here goes.

I would think the only way to go is to pull a used system. I would be mostly concerned with the plumbing, brackets, and the evaporator. I am not sure about the wiring needed but the factory manual should provide that info.

For your aplication I assume you will be running R134a. I would recomend R12 but its harder to come by. I have seen it on ebay for $25-$40 a pound. You would need a licence to purchase it legaly, but you can take a test on line to get the license.

The older cars had a different system but in 79 IIRC they went to a Nippondenso system. I would try to find a Nipondenso system. Dont by Porsche parts try to find the Nipondenso parts at a local A/C shop and save yourself some money.

You can have hoses made at a local shop but if you can find a used set in good condition I would use them. If you are going to use R134a the original hoses will work well. There are alot of people who claim that the R12 hoses will leak due to the fact that the are non-barrier hoses. Truth is that the R12 hoses will saturate and provide minimal seepage.

Performance products sells a larger condensor that will make the A/C system more efficent, but IIRC its like $300. With your climate and if you plan on running R134a it will probably be worth it. I have also heard of people installing a 3rd fan to push air over the condensor to make it more efficeint especially durring stop and go driving.

You may end up having to buy a new compressor wich will be costly.

Make sure to drain all the old oil out of the system and flush it. You will also need a new receiver/dryier but they are not expensive. Make sure to replace all of the seals.

Properly done it should run you about $300 without the new condensor or new compressor.
_________________
1981 924 NA

Some people are like Slinkies. Not really good for anything, but you
still can't help but smile when you see one tumble down the stairs.

[ropndave]

Thanks great info.

[wdb]

theres also vintage air . they make ac for custom and rods . made for easy install . the cabin portion comes as a unit that you mount under the dash ,or the rear of the car . have a look ,alot of options to choose from .

http://www.vintageair.com/

.