disable auto a/c

ShinyBlueZ · 06-01-2012, 07:37 PM

I'm actually pretty ignorant about certain things like this when it comes to cars myself.. I'm curious to know who's actually right here.

25+ hp just to run a little air conditioner sounds excessively high.. but at the same time in my hatchback Civic (and other 4-bangers I've owned) I often turned the A/C off when merging onto the highway since it ate a really noticeable chunk of my acceleration away. I don't think 3hp off of 127 would affect it that much.

No need to start flaming each other though.. just have a cool discussion about it lol We all drive Z's so we're extra cool people here!

Oh and from reading the owner's manual + the service manual.. there doesn't seem to be any sort of hidden button sequence to change the default A/C settings like you're asking. I wish there was too.. it actually bugs me pretty often as well

Compdoc777 · 06-01-2012, 08:40 PM

Yes the ac does not use much power. It will shut off when wot i can feel it getting warm after a fast run. I run my ac all the time and can feel no difference with it on or off in power. I turn it off just for grins when I am going to run a fast car.

I hate the thing going to fresh air automatically everytime I turn it off or on.

Shamrock · 06-03-2012, 07:35 AM

Guys it says right in the manual if you hold the recirculating button down it turns off the automatic recycling mode and it stays where you put it.

cjr1881 · 06-03-2012, 10:41 AM

Quote:

Originally Posted by Shamrock

Guys it says right in the manual if you hold the recirculating button down it turns off the automatic recycling mode and it stays where you put it.

Doesn't work.

Shamrock · 06-05-2012, 06:55 AM

Just did it

Pauly · 06-05-2012, 07:32 AM

to the OP, i may not be understanding what you are trying to accomplish, but i just turn my fan setting off, and my AC will never come on. as far as the car switching to fresh air with many of the settings, its not just the Z, or even nissan for that matter. i've bought several new vehicles in the past few years, and they all have this feature. seems to be the direction they all are headed in as far as a default setting.

the thing about the AC draw from the power, yea it slows you down. same with every car or truck. how much for measurement's sake? i dont know. dont really care. i dont even turn mine off if someone tries to show me up. most of them are douchers anyway, who cant drive good enough to pass me even with a faster car lol

cossie1600 · 06-05-2012, 09:40 AM

Quote:

Originally Posted by cjr1881

Because you can go buy a 3hp Electric compressor means absolutely nothing. You have to be the most ignorant person I have seen posting on this forum with no tuning experience.

Coming from a guy who claims he lost 25HP with the AC on? Really? How many cars have you tuned?

Quote:

Originally Posted by Ubetit

My 4 ton home Ac unit pulls 14500 watts... roughly 19 horsepower. 3 horsepower won't run a 4 ton AC

14500 watt from a 4 ton? Is that AC from 1900? Thats like a 3 seer system. A 4 ton 16 seer is roughly 3000 Watts pull. Also if your number is correct, you are going to need a 66 amps circuit to run it!! (14500/220)

Quote:

Originally Posted by ChrisSlicks

I've used my A/C on track several times to keep the windshield defogged in misty conditions. There was no difference in car feel, acceleration or lap times. An auto A/C compressor isn't quite as efficient as a home unit but the comparison isn't that far off. Power is power as was stated, the difference is in a direct drive compressor you will feel the drag more than the power loss (flywheel effect) and in the low rpm range where the car isn't making much power. At most it pulls 5hp when active and it does seem to disengage under WOT. You'll notice 5hp in a 100hp car, but not so much in a 300hp car.

Yes it shuts off under wot. I have had to pull the car off the track due to fog. AC wont work anytime I was on the straight. The car does feel very odd, almost a jolt when you get off wot though.

dawudih · 06-05-2012, 11:19 PM

Just leave the fan on & compressor off; when you restart the car, the compressor will not turn on as long as the fan was left on.

Waiz · 06-06-2012, 12:44 AM

Quote:

Originally Posted by dawudih

Just leave the fan on & compressor off; when you restart the car, the compressor will not turn on as long as the fan was left on.

Pelican170 · 06-06-2012, 10:03 AM

Ive tried all the tricks in this thread and I cant get it so that the recirculated air is NOT on A/C. Anytime it is set to recirculate, the AC light comes on and i cant find a way to have it just blow recirculated air without the AC being on... the second i push the AC button to turn it off, it switches to fresh air...

vjarnot · 06-07-2012, 08:36 PM

I got dibs for first spot in the cjr1881 racing school for real drivers!!!11!OMGWTFBBQ!1

cossie1600 · 06-07-2012, 08:39 PM

We aren't, yet we know the difference between 5HP and 25HP.

See you at the track. (Look to the left, my car got up to 120mph in the pouring rain with the AC button on to defrost the windshield. It must be a miracle!)

ShinyBlueZ · 06-07-2012, 10:11 PM

If you're tracking and need power all over the place.. why don't you just turn off the A/C the odd time? Or are you racing for pinks every time you pull out of your driveway?

If you're so race focused.. why do you want the lowly human comforts of A/C period? Just yank that crap out and be gone with it! Will get you some weight reduction as well.

This guy is hardcore.. he drives his 10 second car not in a straight line.. but to push it, and make it through places no one else would take it. He's a real driver!

Huck · 06-07-2012, 10:06 PM

Lol, the argument/importance of issue ratio in here is astronomical.

Sent from my iPhizzle using magic and new fangled science stuff

shadoquad · 06-08-2012, 09:51 AM

If you're all about racing, turn the thing off when you race. Sacrifice some comfort. Then when not racing, turn on AC and bask in comfort. Really don't see the issue. Unless you really need all 330 hp to make it to McDonalds and back, all the time.

06-05-2012, 07:32 AM	#6 (permalink)
Pauly Track Member Join Date: Feb 2012 Location: Lafayette, La Posts: 645 Drives: and parks Rep Power: 15	to the OP, i may not be understanding what you are trying to accomplish, but i just turn my fan setting off, and my AC will never come on. as far as the car switching to fresh air with many of the settings, its not just the Z, or even nissan for that matter. i've bought several new vehicles in the past few years, and they all have this feature. seems to be the direction they all are headed in as far as a default setting. the thing about the AC draw from the power, yea it slows you down. same with every car or truck. how much for measurement's sake? i dont know. dont really care. i dont even turn mine off if someone tries to show me up. most of them are douchers anyway, who cant drive good enough to pass me even with a faster car lol __________________ Gun Metallic 2012 370 Z 7AT

06-06-2012, 10:03 AM	#10 (permalink)
Pelican170 Track Member Join Date: Jul 2010 Location: Sandy Hook, CT Posts: 972 Drives: Nissan 370z Nismo Rep Power: 16	Ive tried all the tricks in this thread and I cant get it so that the recirculated air is NOT on A/C. Anytime it is set to recirculate, the AC light comes on and i cant find a way to have it just blow recirculated air without the AC being on... the second i push the AC button to turn it off, it switches to fresh air... __________________ Fast Intentions CF Exhaust - Fast Intentions HFC's - HPS Tubes w/ AFE Dry Flow Filter's

06-07-2012, 08:39 PM	#12 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	We aren't, yet we know the difference between 5HP and 25HP. See you at the track. (Look to the left, my car got up to 120mph in the pouring rain with the AC button on to defrost the windshield. It must be a miracle!) Last edited by cossie1600; 06-07-2012 at 08:44 PM.

06-07-2012, 10:06 PM	#14 (permalink)
Huck A True Z Fanatic Join Date: Jan 2012 Location: Cocoa, Florida Age: 42 Posts: 5,075 Drives: Pantydropper machine Rep Power: 34	Lol, the argument/importance of issue ratio in here is astronomical. Sent from my iPhizzle using magic and new fangled science stuff __________________ VLEDS \| Evo-R \| Moddiction \| CF Hood Struts \| F.I. CF CBE & LTH \| Stillen CAI \| NST Pulleys \| UpRev \| Z1 \| M7 \| Status \| Forgestar \| PSS \| Whiteline \| SPL \| SPC \| Kenwood \| Zenclosure \| Kicker \| Alpine Type R

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06-01-2012, 07:37 PM	#1 (permalink)
ShinyBlueZ Enthusiast Member Join Date: Apr 2012 Location: In My Z Posts: 462 Drives: Shiniest Bluest Z Rep Power: 14	I'm actually pretty ignorant about certain things like this when it comes to cars myself.. I'm curious to know who's actually right here. 25+ hp just to run a little air conditioner sounds excessively high.. but at the same time in my hatchback Civic (and other 4-bangers I've owned) I often turned the A/C off when merging onto the highway since it ate a really noticeable chunk of my acceleration away. I don't think 3hp off of 127 would affect it that much. No need to start flaming each other though.. just have a cool discussion about it lol We all drive Z's so we're extra cool people here! Oh and from reading the owner's manual + the service manual.. there doesn't seem to be any sort of hidden button sequence to change the default A/C settings like you're asking. I wish there was too.. it actually bugs me pretty often as well

06-01-2012, 08:40 PM	#2 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 14	Yes the ac does not use much power. It will shut off when wot i can feel it getting warm after a fast run. I run my ac all the time and can feel no difference with it on or off in power. I turn it off just for grins when I am going to run a fast car. I hate the thing going to fresh air automatically everytime I turn it off or on.

06-03-2012, 07:35 AM	#3 (permalink)
Shamrock Base Member Join Date: Apr 2012 Location: Israel Posts: 215 Drives: 370z 2011 AT White Rep Power: 13	Guys it says right in the manual if you hold the recirculating button down it turns off the automatic recycling mode and it stays where you put it.

06-05-2012, 06:55 AM	#5 (permalink)
Shamrock Base Member Join Date: Apr 2012 Location: Israel Posts: 215 Drives: 370z 2011 AT White Rep Power: 13	Just did it

06-05-2012, 11:19 PM	#8 (permalink)
dawudih Base Member Join Date: Mar 2011 Location: Katy, TX Age: 50 Posts: 93 Drives: 2011 370z auto Rep Power: 15	Just leave the fan on & compressor off; when you restart the car, the compressor will not turn on as long as the fan was left on.

06-07-2012, 08:36 PM	#11 (permalink)
vjarnot Base Member Join Date: Apr 2012 Location: Mathews, AL Posts: 68 Drives: 2012 370Z Base SP M6 Rep Power: 13	I got dibs for first spot in the cjr1881 racing school for real drivers!!!11!OMGWTFBBQ!1

06-07-2012, 10:11 PM	#13 (permalink)
ShinyBlueZ Enthusiast Member Join Date: Apr 2012 Location: In My Z Posts: 462 Drives: Shiniest Bluest Z Rep Power: 14	If you're tracking and need power all over the place.. why don't you just turn off the A/C the odd time? Or are you racing for pinks every time you pull out of your driveway? If you're so race focused.. why do you want the lowly human comforts of A/C period? Just yank that crap out and be gone with it! Will get you some weight reduction as well. This guy is hardcore.. he drives his 10 second car not in a straight line.. but to push it, and make it through places no one else would take it. He's a real driver!

06-08-2012, 09:51 AM	#15 (permalink)
shadoquad A True Z Fanatic Join Date: Apr 2010 Location: . Posts: 42,608 Drives: . Rep Power: 3886	If you're all about racing, turn the thing off when you race. Sacrifice some comfort. Then when not racing, turn on AC and bask in comfort. Really don't see the issue. Unless you really need all 330 hp to make it to McDonalds and back, all the time.