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Thread: Removing active grille shutters Reply to Thread
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Topic Review (Newest First)
10-31-2013 09:30 AM
Miller88
Quote:
Originally Posted by focusstu View Post
With the a/c on the compressor feels like an anchor on my manual trans Focus.

Ford changes the throttle mapping when the AC is on ... hate it.
10-29-2013 10:40 PM
1turbofocus
Quote:
Originally Posted by Seminoles View Post
I would say since the new compressors only take .95 HP to run unlike the dinosaur compressors not worth the heat while driving in 110 degree weather.
May I ask where this info came from , the AC only looses 1hp when it is running ?
The more RPM that it turns the more power it takes to tune it , I think they take about 7hp at idle cruise and about 12-14 HP at max psi then the hotter it is the more psi it builds so the more HP to turn it

Tom
10-29-2013 09:51 PM
Elizabeth I would just mention the shutters are not just 'on' and 'off'. The shutters have a variety of intermediary positions.
09-30-2013 11:12 AM
focusstu With the a/c on the compressor feels like an anchor on my manual trans Focus.
09-30-2013 06:44 AM
Seminoles I would say since the new compressors only take .95 HP to run unlike the dinosaur compressors not worth the heat while driving in 110 degree weather.
09-29-2013 11:15 AM
TboneZX3
Quote:
Originally Posted by VOLDAR View Post
You imply that I might even get better mpg => 43 mpg if I'd not use A/C ?
Yes, that is correct, if your "auto" setting is cycling the compressor. It takes power to run the A/C compressor. All other things equal (windows up), you will of course get better gas mileage with the compressor off vs. on.
09-28-2013 07:49 PM
VOLDAR
Quote:
Originally Posted by TboneZX3 View Post
That sounds about right. I experience a difference of about 3 MPG highway dependent on the A/C being on or off. That seems in line with most other cars I've owned in the past though, so it's hard to say what portion of that difference can be attributed to the shutters.
I always used the A/C in my car (Auto on at 22 C = 71.6 F) and I was able to get 39.6 mpg at a steady 65 mph speed in a long trip. You imply that I might even get better mpg => 43 mpg if I'd not use A/C ? This is almost 5 mpg above the EPA and we all know in what conditions EPA tests are done. If I'd go at a 55 mph speed, I am sure even 43 with A/C on would be reachable, if the drive would be long enough.
09-28-2013 07:19 AM
TboneZX3
Quote:
Originally Posted by xwhit3devilx View Post
Lol. That would explain why I can only get 36mpg or so on the highway. With the AC turned off I average closer to 40, granted not having the compressor running helps efficiency a lot.
That sounds about right. I experience a difference of about 3 MPG highway dependent on the A/C being on or off. That seems in line with most other cars I've owned in the past though, so it's hard to say what portion of that difference can be attributed to the shutters.
09-27-2013 02:44 PM
xwhit3devilx
Quote:
Originally Posted by TboneZX3 View Post
I believe they do stay open anytime the A/C is on. However, I have not been able to hold on tight enough to the hood at highway speeds to physically examine that theory.
Lol. That would explain why I can only get 36mpg or so on the highway. With the AC turned off I average closer to 40, granted not having the compressor running helps efficiency a lot.
09-27-2013 12:55 PM
TboneZX3
Quote:
Originally Posted by xwhit3devilx View Post
Question- if the Grille shutters are open whenever the air is on, does that mean if you use AC on the highway the shutters will stay open all the time?
I believe they do stay open anytime the A/C is on. However, I have not been able to hold on tight enough to the hood at highway speeds to physically examine that theory.
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