Alfetta GT A/C Update - Alfa Romeo Bulletin Board & Forums
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post #1 of 2 (permalink) Old 07-18-2010, 11:26 AM Thread Starter
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Join Date: Aug 2003
Location: Chatsworth, Ca
Posts: 1,647
Alfetta GT A/C Update

We've had our first HOT days (105deg).
(review: All new components under hood, 2 new fans on clean oversize radiator, Alfa/factory evaporator, not Behr, with new, larger blower motor) Here's the long version of the work done: http://www.alfabb.com/bb/forums/alfe...-problems.html
System blows air about 25-30 deg below ambient. A little better at highway speeds. 100 outside, inside blows 70 in city, 60 on the highway. Your temp may vary.
At about 105 outside with stop and go traffic the water temp heads up into the RED zone so I turn off AC. With A/C off and a few minutes of 30 mph stop and go driving and 105 outside temp the water cools back down to the 200deg range. Any time at above 95 outside I expect some problems with overheating and slow driving.
At about 105 deg outside and at freeway speeds the water temp is OK, 180 deg range. The interior temp is OK with the AC fan on full.
Based on our "normal" car, a PT Cruiser, the Alfa needs about 100% more air movement to make it really comfortable.

Paul Blankenship AROSC
76 Alfetta GT -Track and daily driver; 88 Milano - a continuing project

Last edited by sidewaysalfa; 09-29-2010 at 03:14 PM.
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post #2 of 2 (permalink) Old 05-14-2019, 09:27 AM Thread Starter
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2019 update

The overheating problem came from the radiator I was using. Modified, maybe incorrectly, years ago for my track Alfetta.
So after making shrouding that did no good I had an old, stock, radiator cleaned out and put in. Voila, the overheating is almost completely gone.
Stuck in traffic for 15 minutes on a hot day will move the temp gauge up, but nothing like it was.
Milanoguy likes this.

Paul Blankenship AROSC
76 Alfetta GT -Track and daily driver; 88 Milano - a continuing project
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