I did it too...Pro Cooler Mod for my A/C

[scottb]

Originally Posted by Richard559

I want to thank you guys for this information I am adding the pro cooler to my 1980 911SC next week, it has the original R12 and factory air. My blower motor froze up last week and I figure since I have to break the seal on the evaporator might as well it make it colder.it blow about 50 deg now. I am going to do just the Pro Cooler first because I am curious to see how much difference it make by it's self. If i don't get the results i am looking for then I'll add the fans and so on until I get something I can live with. It is not uncommon to get temps. of 103 here so you really need air conditioning.

Since you're going to open the evaporator box and disconnect the lines leading to the evaporator to install the ProCooler, you should consider getting a high-efficiency evaporator to replace what you have. I think both Rennaire and Griffiths have them.

[mthomas58]

subscribed - considering the procooler as well since I need to replace my evaporator very soon.

[bandhawk]

Elu,
Very informative post..thanks for putting in the time for all of our benefit!

Which relay did you use? I saw they have a 30 amp relay good for two fans. Its part number is PRM-18902 at the same online store. Thanks for describing the procedure for supplying power to the fans.

Apparently this was the hottest day in Charleston all year, so I'm revisiting the A/C upgrade posts again after 2 years of procrastination.

[DaddyGlenn]

I upgraded my A/C with barrier hoses, Sanden compressor, two additional condensers in the left rear wheel well along with an new receiver/dryer and evaporator from Griffiths. It works fine except on days like today. Temp well into the 90's with a heat index over 100.

I'm considering adding fans to the rear condenser and am very intrigued by the evaporator installation. How is the condensation drained?

Do you have shots of the smuggler's box etc?

[scottb]

Originally Posted by DaddyGlenn

I upgraded my A/C with barrier hoses, Sanden compressor, two additional condensers in the left rear wheel well along with an new receiver/dryer and evaporator from Griffiths. It works fine except on days like today. Temp well into the 90's with a heat index over 100.

That should be more than enough to get you decent vent temps, even on a hot day. Are you sure the system is charged properly?

[hcoles]

sorry if I missed this.... did you refill with R134?
also ... the engine has a pretty big fan.... why doesn't this fan pull enough air over the condensor on the back lid? Is it because the condensor has gaps all around?

I want to redo my 89 and solve this bad ac issue once and for all. Good job.