Thoughts on AC performance

[danz at voicenet.com]

Try insulating your coolant lines. Go under the hood and put your hand on
them when the A/C is running and feel how cold they are. Think about how
much heat you are sucking in from the engine. Also, the cold lines often run
along side the return lines. I insulated the lines on my car (the late,
great '95 90qs) with foam pipe insulation wrapped in reflective aluminum
duct tape. BIG difference. I had to turn the A/C down sometimes it was so
cold. And this was a black car (not to be confused with a Black Helicopter)

DanZ

----- Original Message -----
From: "David" <duandcc_forums at cox.net>
To: <quattro at audifans.com>
Sent: Thursday, June 26, 2003 9:14 AM
Subject: Thoughts on AC performance


I've heard reports that some (many?) 4000/CGT owners have A/C systems that
get cold nearly instantly, whereas mine (and several others I know) take a
while to get cold, even more so in bright, sunny hot humid weather. So, I'm
trying to figure out the correlation. I've tried everyting I can think of.
My system is in perfect working order. My system does get nice and cold,
Vent temps of 38*F are attained, but it takes a while. I've even added a
pusher fan in front of the condensor wired to the compressor clutch wire so
it comes on every time the compressor kicks in. One thing that makes me
curious is that if the car comes to a stop and idles, the vent temps climb.
At a typical red light they can climb as much as 5*F. Anyway, more to the
point... I'm missing  the lower and engine side radiator ducting (have upper
& fender side). So, what i want to find out, is whether those who report
fast cooling have their ducting. Or if the ducting really makes that much of
a difference... Thoughts?

Dave
1987 CGT Special Build 2.3
SE Virginia