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Quote:
Originally posted by Redcon96V4:
A/C at 80 degrees? Let's just say when the devil came down to georgia, he left hell here. a/c is reserved for 90 degree plus temps. i usually reserve mine for near 100 or over 100 temps. Though i think mine is not as cold as it should be,,,,, already have given it a shot of r134. accumalator maybe?
Hey, I use A/C whenever I want to cruise the interstate and don't want the extra wind noise.
Besides, here in Maine we have a saying (we seem to have a lot of sayings :rolleyes: )
It's not the heat, it's the humidity... wink

Now I know the southeast knows about humidity... cool

-Jim


- Jim

'96 Mystique GS, Ztech - ATX,
with CD changer, Sylvania Cool Blues, sunroof, keyless entry, and 9mm blue wires
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Quote:
Originally posted by JWard:
Quote:
Originally posted by RoadRunner:
[b]J,
That is why you should run your DEFROSTER for the first 10 minutes you are in your car in the winter.
The Defroster uses the AC to dry the moisture from the air before it is heated and directed at your windshield.
If warm moist air was directed at your windshield, in the winter, it would
condensate immediately on the windshield, and block your view.
This is what I was always lead to believe, except that my service manual says that the A/C cycling switch prevents the compressor from operating below 50 deg F ambient temp to prevent evaporator freezing.[/b]
ONLY when using the AC setting, not the DEFROSTER setting.


Pete...

98.5 SE Sport Duratec ATX (P66L)
Black Clearcoat on Greystone
DOB 11/21/1997
DOP 12/25/1997
PIAA 510 Super White Driving Lights
SVT CAT-BACK EXHAUST (No Resonator)
DiabloSport Chip (LPQ4) - Engineered To Raise Hell
Too many other mods to list...
Sounds sweet, runs quick...
Crazy Horse Dyno @ 121.4 WHP/129.6 TQ
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did you know that your car will get better gas mileage if you use the AC rather than opening the windows?


"careful man, there's a beverage here."
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Quote:
Originally posted by Redcon96V4:
A/C at 80 degrees? Let's just say when the devil came down to georgia, he left hell here. a/c is reserved for 90 degree plus temps. i usually reserve mine for near 100 or over 100 temps. Though i think mine is not as cold as it should be,,,,, already have given it a shot of r134. accumalator maybe?
i disagree. when you have leather friggin seats, and your car has been sitting in the sun a/c is needed.


98.5 Contour SVT totally stock...for now.

-Talk about high performance...I have a K&N Oil Filter....AND a K&N Air Filter!
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Quote:
JSmith
Member # 4121 posted June 11, 2002 01:08 AM
--------------------------------------------------------------------------------
did you know that your car will get better gas mileage if you use the AC rather than opening the windows?
How??? Your AC takes power from your engine, requiring it to work harder and burn more gas to get you to driving speed. Opening windows doesn't take any power from engine, unless you have electric windows.

And luckily I don't have leather seats.


"Wow, that sank fast." "Yeah, like a rock."
96 Contour GL ATX
9mm Ford Racing Wires; 2 Resonators down, 1 to go;"Special airbox"; many mods planned
Sony CD player: 50wattsx4;remote;
Speakers=50 watt Pioneer 6x8s
Ross Evans smile
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Quote:
Originally posted by Redcon96V4:
Quote:
JSmith
Member # 4121 posted June 11, 2002 01:08 AM
--------------------------------------------------------------------------------
did you know that your car will get better gas mileage if you use the AC rather than opening the windows?
How??? Your AC takes power from your engine, requiring it to work harder and burn more gas to get you to driving speed. Opening windows doesn't take any power from engine, unless you have electric windows.

And luckily I don't have leather seats.
Drag. That's the problem with opening the windows. The interior of the car can become a big parachute.

YMMV,

TB


Tony Boner
Personal: 98cdw27@charter.net Work: tony.boner@sun.com
Saving the computer world from WinBloze as Unix/Solaris/Java Guru http://www.sun.com
1998 Contour SVT Pre-E1 618/6535 Born On Date: 4/30/1997
Now with Aussie Bar induced mild oversteer.
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I particularly like the way the SVT's are designed to shut off the A/C at WOT, in order to improve performance. Love those bursts of warm air. cool

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The SVT cuts out the AC compressor at WOT to protect the compressor, not necessarily for performance. Imagine spinning the compressor at 7 grand.


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NASCAR cars have basically opens windows, they can't create too much drag. They still don't use any engine power.


"Wow, that sank fast." "Yeah, like a rock."
96 Contour GL ATX
9mm Ford Racing Wires; 2 Resonators down, 1 to go;"Special airbox"; many mods planned
Sony CD player: 50wattsx4;remote;
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Ahem,

Passenger cars are driven at SLOW speeds compared to NASCAR STOCK CARS.

The Body of a NASCAR STOCK CAR is designed so that the window areas are RECESSED,
and the external airflow is not interrupted when flowing over the open window.
Ever see the window net flap when the car is traveling at 200+ MPH?
NASCAR STOCK CARS also have open windows for SAFETY REASONS.
NASCAR STOCK CARS also do NOT have an AC system installed in them.

Driving with the AC ON does not help or hinder your Fuel Economy.
I've gotten well over 30 MPG on very long trips,
while cruising at 75 - 80 MPH with the AC both ON and OFF.
What kills your Fuel economy, is how many times you accept the stop light challenges.

Also, MOST computer controlled cars today, will disable the AC Compressor clutch for several reasons...

WOT - Wide Open Throttle
AC Compresors are NOT built to withstand very high RPMs.

Engine loads - Threshold is programmed into the particular calibration.
When you are accelerating, and your engine reaches a particular calculated work load,
the computer may disable the AC compressor to diminish the work load.

External Ambient Temperature - Many vehicles have an ambient temperature sensor, both inside and outside the vehicle.
If the exterior ambient temp sensor reads below a certain temperture,
the AC Compressor will be disabled in AC mode.
An INTERNAL Ambient sensor can disable the AC Compressor, if a low temperature threshold is reached, inside the vehicle, while the AC Mode is selected.

The HVAC system is not has simple as it was years ago.
It is now more complex than your home HVAC system.

psst....
The AC Compressor is also disabled at WOT on NON-SVT Tours.
Ask anyone with a NON-SVT Tour or Mystique.


Pete...

98.5 SE Sport Duratec ATX (P66L)
Black Clearcoat on Greystone
DOB 11/21/1997
DOP 12/25/1997
PIAA 510 Super White Driving Lights
SVT CAT-BACK EXHAUST (No Resonator)
DiabloSport Chip (LPQ4) - Engineered To Raise Hell
Too many other mods to list...
Sounds sweet, runs quick...
Crazy Horse Dyno @ 121.4 WHP/129.6 TQ
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