Complete aftermarket A\C system needed

chadco · chadco's Garage

Hey fellow sc owners, I live in Florida and its already HOT. I read an article at some point a few years ago about a system that would give vent temps in the 40s. I have a factory system but it couldnt cool its way out of a paper bag. The system I read about had dual cooling fans and coolers in the rear wheel areas and one where the factory cooler goes in the front and under the tail. Can someone help me find this product?

speedman · speedman's Garage

You can use www.renaire.com or www.griffiths.com

mthomas58 · 03-11-2009, 10:02 AM

Quote:

Originally Posted by chadco

Hey fellow sc owners, I live in Florida and its already HOT. I read an article at some point a few years ago about a system that would give vent temps in the 40s. I have a factory system but it couldnt cool its way out of a paper bag. The system I read about had dual cooling fans and coolers in the rear wheel areas and one where the factory cooler goes in the front and under the tail. Can someone help me find this product?

Griffiths

My install thread here. Expensive but well worth it if you don't like sweating!

Stock system won't cut it in FL - more condenser capacity is the key to getting decent performance out of a poorly engineered system. Higher efficiency components help overall performance once you get over the condenser capacity hurdle IMO. I'm not an A/C expert, but I did stay at a Holiday Inn Express last night!

A/C Upgrade Project starts tomorrow!

Mitch Leland · Mitch Leland's Garage

Chad,

There's plenty of options out there to turn your Porsche into a refrigerator, it all depends on how much plumbing and money you want to throw at your car. I did some mix and matching, a lot of my own labor, for little over a $1,000 and good some good results here in Texas. Maybe it won't cut it on the worst days, but it beats the hell out of the stock system.

There's a ton of information out there so you need to do some home work before you decide on how far you want to go with your upgrades. Remember that our host carries most of these upgrades...

If you want to PM me I'll tell you what I did... As far as these upgrades, I think there are a lot of ways to accomplish improving the system, the trick is finding one that fits your pocket book and temperature goals.

esample · esample's Garage

Quote:

Originally Posted by chadco

Hey fellow sc owners, I live in Florida and its already HOT. I read an article at some point a few years ago about a system that would give vent temps in the 40s. I have a factory system but it couldnt cool its way out of a paper bag. The system I read about had dual cooling fans and coolers in the rear wheel areas and one where the factory cooler goes in the front and under the tail. Can someone help me find this product?

There are many, many threads on this subject. Do a search.

-e.

brads911sc · brads911sc's Garage

Rennaire is great. Bought the complete system and added the Kuel Vents from Griffiths. Im in TX. Blows ice cold at the vents.

Zeke · 03-11-2009, 02:40 PM

Quote:

Originally Posted by esample

There are many, many threads on this subject. Do a search.

-e.

I did using "air conditioning" and "a/c" as terms with your user name. Not a thing showed up. But thanks for the suggestion, just the same.

mthomas58 · 03-11-2009, 03:59 PM

Quote:

Originally Posted by milt

I did using "air conditioning" and "a/c" as terms with your user name. Not a thing showed up. But thanks for the suggestion, just the same.

Very passive aggressive Milt - well done, sir!

esample · esample's Garage

Quote:

Originally Posted by milt

I did using "air conditioning" and "a/c" as terms with your user name. Not a thing showed up. But thanks for the suggestion, just the same.

Try here: Ultimate AC Thread

Don't know why you're responding this way?!

-e.

karleick · 03-12-2009, 06:00 AM

All good suggestions above. I'm also in Florida and wanted the same thing for my SC. I installed the Griffith system, complete with mostly new components, retaining only the front and engine lid condensers. I've very satisfied, although I continue to experience evaporator freezing during our very humid summers. I have to make continual fine adjustments to my temperature control and fan speed to ensure a clear evaporator. The thermostat system isn't as good as we're used to on modern systems.

I live in Sarasota and will be glad to share my experience with you if you're in the area.

mthomas58 · 03-12-2009, 06:34 AM

Quote:

Originally Posted by karleick

All good suggestions above.

....... I'm very satisfied, although I continue to experience evaporator freezing during our very humid summers. I have to make continual fine adjustments to my temperature control and fan speed to ensure a clear evaporator......

I live in Sarasota and will be glad to share my experience with you if you're in the area.

I have the exact same issue in high humidity conditions. In such conditions, the compressor must cycle on an off or it will freeze up from continued use.

We're in the 70's now in Atlanta....I can get my evap core temp down well below freezing (i.e. 24 - 27 degrees) pretty easily by turning the knob to max cold setting. If I do, however, it doesn't take long to freeze up. I keep a small digital meat thermometer permanently mounted in my center vent to monitor the evaporater temps and adjust as needed to keep from freezing up. It's a good problem to have!

Sorry - bad lighting and weak battery so let me help you...23 DEGREES!

karleick · 03-12-2009, 06:56 AM

I have a similar setup which helps me modulate the thermostat settings to prevent freezup. I installed a digital thermometer probe into my evaporator, adjacent to my thermostat probe. The flexible wire allows me to mount the thermometer face on my dash. I also installed the Griffith LED monitor for the signal from the thermostat to the compressor so I know when my compressor clutch is engaged and dis-engaged. These 2 controls let me know exactly what's happening with my evaporator so I can adjust to keep the ice from forming. It's kind of fun to play with, but I wish there was a more reliable electro/mechanical device to perform this function automatically.

Mitch Leland · Mitch Leland's Garage

First off I'm no expert... However I did learn a few things when I did my upgrade that were important.

1. The pressures when charging our system are very important, particularly as it pertains to evaporator freezing. You can go on the internet to find temps and pressure settings. I have some that I can attach as an e-mail.

2. Also be sure your capillary tube and temp switch are good and the capillary tube is set properly into the evaporator. Griff told me to mark the capillary tube at 3.5", then insert that into the plastic evaporator box to the 3.5" mark.

I chased the icing problem and spent a lot of extra money before replacing the temp switch and capillary tube. In hind sight after spending a lot money on the up grades I should have just stepped up and replaced the temp switch and tube. It's not that much money and it's a very important part of the system to leave to guess work.

mthomas58 · 03-12-2009, 08:21 AM

Griff also recommends using dielectrice grease in the capillary tube for more effective temp transfer readings and thermostat function.

Mitch Leland · Mitch Leland's Garage

+ 1 for Mark... Good thing to remember, good temps is in the details.

karleick · 03-12-2009, 03:51 PM

Griff worked with me throughout my installation and trouble shooting. To ensure I was using a perfect temp control and sensor, he sent me a replacement unit. I'm sure my controls are working correctly. I'm going to try using dielectric grease on the probe when the real summer and humidity sets in. Right now, my A/C works perfectly when the ambient temps are in the 80s and the humidity is relatively low.