:icon18: That would make some nasty azz seats. Hey bro did you pee on yourself. No, I just have a good sweat on the nuts... lmao

I hear you Soygen in Fl! Also come to f'kn texas during the summer azz heat and flood your nuts here! AC is my best friend baby. :gtfo2:

yep, florida is like the swamp *** of america.

wrong sir, Florida is the penis of America, get it right:icon17:

i understand turning off the AC if you are going for some spirited driving and want to crank out all the HP you have on tap, but if you are driving around with the AC off all the time just for the extra power, you might as well just gut your interior to save the weight too. Its a car, there is enjoyment in the driving experience besides accelerating. The car takes corners, and brakes just as well with the AC on.

Like others said, south florida is nuts in the summer time, so driving with the AC off is not fun. Note all the people who turn it off are either up north or in Cali. :D

We also have the most dead straight roads I've ever seen so other than hitting an off ramp or two, there's not much in the area for "spirited driving".

My a/c is on Auto all the time. I don't drive the car for max speed so it doesn't bother me. :)

yea, and for god sakes, any car can go fast. a minivan can get over 90. Yea it will mildly hurt your acceleration, but its not gonna be like

Doctor: '... you missed the birth of your child... it's a boy
you:...well i mean... i got here as fast as i could!'
Doctor:'you were driving with the Air conditioning on weren't you...'
You: ::Sigh:: 'yes...'

HAHAHA!

I would think the AC being on or off is barely noticable in the Z? I know in my civic it's like night and day, but when you are starting off with only 90hp....

i stand corrected. than if this is the case, florida suffers from severe chronic ball sweat syndrome!

:roflpuke2:

Supposedly the A/C takes 3 - 5 HP, so it is a lot cheaper to hit the A/C button than put on an intake or exhaust :D

Someone needs to build a circuit to disable the A/C under acceleration instead of just WOT.

its actually a 10-20% loss actually.

:iagree:

its pretty significant, my acceleration is chit with it on :(

It's enough that our Z is not as exciting under 3k revs, but with hot oil temps and A/C on it feels like a Civic until the engine winds up past 3k RPM.

Also window's down A/C off burns more fuel than window's up and A/C on. Seen it on mythbusters :roflpuke2:

Mythbusters FTW! Remember the episode where they put clay on the exterior of a Ford Taurus and dimpled the surface so it was like a golf ball? Gas mileage increased. :tup::tup:

We need a golfball 370Z. :bowrofl:

:icon18: I agree....:icon18:

:iagree:, It and you ain't nice after driving around from Late May(this yr)/June to August down here with your windows down. :ban:

shittin pants is all driver

its called the off button

I bet you drive a manual and didn't get Navigation. And use a typewriter. And a cassette deck.

If you want better gas mileage, you shouldn't have purchased a 370Z. :)

hahah...

nope got all the tech stuff and in car and home and work, so now. If the A/C shut off under acceleration then it would only be on at stop lights. We are on the accelerator 95% of the time.

I find it hard to believe you accelerate 95% of the time on public roads, and I don't think anyone besides me would use A/C on the track :)

I know I don't accelerate that much in my daily driver, which is mainly city driving in a small city.

well I live in TX and when not at a stop light my foot is on the gas most of the time, very little breaking really, so even if its not heavy acceleration it is acceleration and having the A/C cut out under acceleration would mean its hardly ever on. Just saying that wouldnt be a very good thing in the car, WOT is fine.

So if you need to street race you lean over and hit the little button on the dash that turns off the ac. Not really all that tough. Why is this thread 5 pages long?

And thats what I said too.

Its all about getting the post count up....

Shooting for 1K...

When I drove through Texas I probably had the least acceleration of a 24hour trip - just long highways at constant speed.

I agree, but I think you guys are talking past each other. I think ZSteve means that the car is under power -- The accelerator is depressed .. e.g. not coasting.

You and others are using "acceleration" in the "physics" sense (which I think is how most people use it). When you are accelerating your velocity is increasing. So, by definition, maintaining speed on a highway is not accelerating.

I still wouldn't want my AC cutting out as I get up to the speed limit from stop light to stop light ...

:bowdown:

so you coasted without using the accelerator thru TX?:icon14: If you werent under acceleration the car would slow down and come to a stop. WOT is fine for the cutoff but not any other time.

"acceleration" means to change velocity over time. Unless your speed is increasing you are not accelerating.

Acceleration - Wikipedia, the free encyclopedia

You're confusing "pushing the accelerator" with acceleration.

no not at all. If I remember right, cars today use voltage as a means of determining acceleration (along with other things too). 0 to 5v. 0 volts is only when completely off the pedal, otherwise there is some voltage between .1 and 5V that will cause acceleration, it just varies. Even on a flat road a car will require some voltage to keep the car going at a certain speed and this will cause acceleration, but you might not go faster cuz its using that voltage just to keep from slowing down due to the weight of the car and some other factors like wind. KInda like going up hill you have to give it more gas just to keep the same speed, so you are increasing the voltage to do that but not going faster. If you kept the same voltage going up hill you would lose speed.

My main point is that a WOT cutoff is fine but anything else would mean the A/C is off most of the time and as you know, here in TX we want the A/C.

@ZSteve. Last try ...

Frankly I don't know what sense you are using "acceleration". Acceleration in the normal sense doesn't have anything essential to do with how much gas you have to give the car to maintain forward motion. Acceleration is not the amount of power you put to the tires to move the car forward. Acceleration is an *increase* in speed. If you accelerate up to a specific speed then if you maintain that speed -- say 65 -- you are no longer accelerating.

Did you read that wikipedia link?

From Acceleration - Wikipedia, the free encyclopedia :

"In physics, and more specifically kinematics, acceleration is the change in velocity over time. Because velocity is a vector, it can change in two ways: a change in magnitude and/or a change in direction. In one dimension, i.e. a line, acceleration is the rate at which something speeds up."

There may be some word for what you describing, but it is not "acceleration" which has the specific meaning given above.


Perhaps you mean that since you can't really maintain an exact speed there is always a little bit of acceleration and deceleration going on. Or perhaps you mean that if the A/C shutoff were controlled by the voltage going into the ECU from the throttle it would be constantly shutting off whenever you give it some gas even if your speed remains constant. That's true, but it wouldn't be controlled by acceleration in that case. They could gate it by actual acceleration by rapidly sampling the MPH...

I agree with your overall point, but "acceleration" is not the phenomenon you are describing

exactly

book answers are fine and all but we all know when we say we are accelerating we mean we are stepping on the gas pedal. Im not trying to use every word to their exact meaning as most dont in here, we go by our slang for it. I guess the point Im getting at is, if there is voltage on the gas pedal wire that goes to the throttle body or whatever it goes to, the car thinks it is accelerating as it has no idea wether the car is encreasing speed or not due to the voltage applied by how much the pedal is pushed. Im not doubting the real meaning of acceleration, just using it the way we normaly do when talking about cars in here. Like I was saying about going up a steep hill, you have to basically go WOT to keep the car from losing speed and not necessarily increase speed, and in this sense we are accelerating the gas pedal but nit really the car. I think we are both on the same page just looking at it in a different angle.

Yea, before your last post I had edited my last post to bring up the possibility of that being what you mean. What confused me is that when most people talk about their car accelerating, they mean it in the book sense -- their car is increasing in speed.

No one cares about accelerating the gas pedal, and the throttle sensor is certainly not the only way to tell if the car is accelerating, not even the only sensor the car currently has.

Currently the VDC has to determine traction and wheelslip by measuring and comparing tire rotational speed at all corners. What if we turn off A/C when ever there is a 10% increase in tire rotational speed over the measurement period and the tires are all the same speed (i.e. not turning)?