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Old 06-11-2012, 09:24 PM   #1
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v6 automatic off the line power.

i have a 2012 v6 auto and the off the line power doesn't seem like a major upgrade over my 2000 camaro v6. i did read somewhere that the transmission will sift to a higher gear if the car is floored from the stop. can anyone clarify this for me and tell me how this works?
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Old 06-11-2012, 09:31 PM   #2
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I have never driven an 11+ 3.7, but I would guess that the 30+ mpg they're rated for is because of the rear end gearing.

It's a highway gear, which isn't meant to give the greatest acceleration. At any rate, 3.73 or 4.10 gears will definitely wake that pony up.
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Old 06-11-2012, 09:44 PM   #3
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Re: v6 automatic off the line power.

sounds like she might be geared too low......
I drove an auto sometime back in 2011 with the 3.7...wasnt impressed. Drove another in 2012 to see if they had fixed something...no joy.
After testing 8 in the 6 speed...that was where I went......
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Old 06-11-2012, 09:55 PM   #4
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Quote:
Originally Posted by NeedSomeMods
I have never driven an 11+ 3.7, but I would guess that the 30+ mpg they're rated for is because of the rear end gearing.

It's a highway gear, which isn't meant to give the greatest acceleration. At any rate, 3.73 or 4.10 gears will definitely wake that pony up.
+1. These cars need gears for off the line power. In fact, our cars really aren't that quick at all imo.
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Old 06-11-2012, 09:59 PM   #5
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Re: v6 automatic off the line power.

why I got the perf package with mine for the 3.31 rear gear. slimer has decent take off. once I finish breaking it in....gonna see how mid range and top end are...
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Old 06-11-2012, 10:06 PM   #6
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Re: v6 automatic off the line power.

how about 3.55 gears for the car ? best of both worlds?
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Old 06-11-2012, 10:11 PM   #7
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Re: v6 automatic off the line power.

you're on the right track...
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Old 06-11-2012, 10:38 PM   #8
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Plus the tranny in an auto is 6 gears and they are close. It kinda works like a v tec. (forgot where I heard that) so don't hound me if I'm wrong. The 6 speed manual is faster to me because you can well control it. The v6 auto is more for a DD or just a cruiser. Manuals are for mods IMO. Then again I'm modding an auto lol
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Old 06-12-2012, 01:07 AM   #9
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Originally Posted by Whitelightning
Plus the tranny in an auto is 6 gears and they are close. It kinda works like a v tec. (forgot where I heard that) so don't hound me if I'm wrong. The 6 speed manual is faster to me because you can well control it. The v6 auto is more for a DD or just a cruiser. Manuals are for mods IMO. Then again I'm modding an auto lol
The auto tranny is faster and more consistent and can handle a lot more than the manual tranny from what I've heard. The autos are getting the better times at the track. If you check out the 10-14 GT section there's a lot more info around there on how the auto is better as I'm not the expert. But there's people on there who's owned both and know from experience. That's if your looking to drag and make serious power. I'm sure there isn't too much of a difference on a stock or bolt-on V6 auto and manual :/
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Old 06-12-2012, 07:56 AM   #10
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Quote:
Originally Posted by CYCLON37

The auto tranny is faster and more consistent and can handle a lot more than the manual tranny from what I've heard. The autos are getting the better times at the track. If you check out the 10-14 GT section there's a lot more info around there on how the auto is better as I'm not the expert. But there's people on there who's owned both and know from experience. That's if your looking to drag and make serious power. I'm sure there isn't too much of a difference on a stock or bolt-on V6 auto and manual :/
A clutch for starters and the possibility to redline thus using more gas when these new autos just shift out. I wonder if you have my color if it'll redline? And have you wondered why when you rev it in an auto it'll slowly come down vs a manual which just drops. Weird. Side note, I checked out the rachet shifter for our generation. Pretty sick for an automatic. That is, till it gets to drive and you can't control 4-6
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Old 06-12-2012, 02:16 PM   #11
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Re: v6 automatic off the line power.

I also drive a 3.7 auto (stock 2.71 gears) and feel as if the acceleration could be better from a complete stop as well as from 5-10 mph. The only couple things that I really dislike in my 3.7 (Which is on a VERY short list) is the stock throttle response and the acceleration. I still love my 3.7 and everything about it, just wish it had a little more kick from the line. Which I'm reading in previous posts, that upgrading gears could get me that. What would create a better throttle response? Aftermarket axle-back exhaust?
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Old 06-12-2012, 02:22 PM   #12
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Gears and tune are what our autos need. Will improve throttle response, better shift points and you'll have off the line power
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Old 06-12-2012, 02:43 PM   #13
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Re: v6 automatic off the line power.

get 3.73 or 4.10 gears
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Old 06-12-2012, 04:39 PM   #14
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Quote:
Originally Posted by 236mustang
get 3.73 or 4.10 gears
That's almost too much in 11-13s. 3.73 is good enough. Anything else is almost primitive IMO
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Old 06-12-2012, 06:45 PM   #15
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3.55's or 3.73's are more then enough for most. Especially if it's a DD. I plan on doing 4.10's though but mines not a DD and I only drive it to have fun
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Old 06-12-2012, 10:00 PM   #16
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Quote:
Originally Posted by dgrum04
I also drive a 3.7 auto (stock 2.71 gears) and feel as if the acceleration could be better from a complete stop as well as from 5-10 mph. The only couple things that I really dislike in my 3.7 (Which is on a VERY short list) is the stock throttle response and the acceleration. I still love my 3.7 and everything about it, just wish it had a little more kick from the line. Which I'm reading in previous posts, that upgrading gears could get me that. What would create a better throttle response? Aftermarket axle-back exhaust?
Axleback exhaust won't do much at all for performance. A good cold air intake and/or a tune will help throttle response.
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Old 06-13-2012, 06:25 AM   #17
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Quote:
Originally Posted by Whitelightning

A clutch for starters and the possibility to redline thus using more gas when these new autos just shift out. I wonder if you have my color if it'll redline? And have you wondered why when you rev it in an auto it'll slowly come down vs a manual which just drops. Weird. Side note, I checked out the rachet shifter for our generation. Pretty sick for an automatic. That is, till it gets to drive and you can't control 4-6
Did someone say redline???

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Old 06-13-2012, 08:04 AM   #18
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Actually redlined my automatic last night and it was fun I must say. Just let it roll through third then stomp. Redline and a fast rising speedometer followed. And yes, the tach turned red(mine is blue and green)
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Old 01-06-2015, 03:28 PM   #19
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I upgraded mine to 3.73s from the standard 2.71. Those 2.71s make me want to cry. But installing some 3.73s really wake up that 305HP. Turn off traction control and a good tune and roasting some pilot sports is easy.
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Old 01-06-2015, 06:58 PM   #20
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I have a 2012 mustang v6 with an automatic. Brought the car used with about 36k miles almost at 51k almost 2 years later. Love the car hate the stock 2.73 gears. Mods are: airaid CAI, bbk 73mm throttle body, usually run Bama 93 race tune, bbk shorty headers, borla x-pipe and magnaflow competition catback. Car is DD mainly city once in a while some hwy. I don't take it to the track but love to have fun with it in the city. Currently living in Orlando and the stop and go is horrible. Long story short want to do gears. I'm between 3.31s or 3.55s. After about 2nd gear car is really quick just slow from start. Are the 3.31s a worth while difference over stock 2.73s? Are 3.55 really a huge difference from 3.31s? Thanks mustang guys.


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Old 01-06-2015, 07:00 PM   #21
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Also forgot to mention that I have 18" wheels. 18x9/255 in front and 18x10/275 in back.


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Old 01-06-2015, 08:18 PM   #22
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I have 3.31s and feel they are perfect for me. And i get in ALOT of stop and go traffic. Remember, the higher you go (2.73 to 3.31 or 3.31 to 3.55), you will lose about 1-2 MPGs.
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Old 01-06-2015, 08:22 PM   #23
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Thanks Kevin. Is your mustang an automatic? And any mods? Always love to hear about other mustangs.


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Old 01-06-2015, 09:08 PM   #24
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Mine is a 2014 v6 Auto w/ Performance Package. Most mods are cosmetic right now (dont want to overdo the performance mods and void warranties). As far as Performance mods go:

Stuff included with the Performance Package such as a stiffer suspension, front strut brace, 19" wheels, and 3.31 gears.

I added on an Airaid Cold Air Intake and Borla S-type axlebacks.

Not really a performance mod but I added the Shelby GT500 spoiler.

This summer I plan on doing a 1 piece aluminum driveshaft, bama tune, and super coils.

To help answer peoples question on if a CAI voids warranties I asked a Ford dealership....


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Old 01-06-2015, 09:09 PM   #25
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Best to get things in writing
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Old 01-06-2015, 09:17 PM   #26
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Unless they can prove the mod you did to the car caused the problem to the car, they have to stand by their warranty or they can be taken to court


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Old 01-06-2015, 09:32 PM   #27
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Sounds awesome. Yeah I love the look of the gt500 spoiler. I might get one for mine. As for the tuner you won't regret it. I would get that asap. It's a lot of fun and makes the car come alive. Probably more so since you have 3.31 gears.


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Old 01-06-2015, 09:34 PM   #28
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I am hesitant on a tune. Fear of my car grenading. Not like my dealer will be forgiving and replace my car's computer if it bricks. I just need a few nights to sleep on it.....or months
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Old 01-06-2015, 09:39 PM   #29
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Yeah I understand. I've had a tune on my last mustang a 2003 v6 and my current 2012 v6. Both Bama tunes and no problems. But once you feel comfortable getting a tune, you will love it. I also have one MPT tune.


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Old 01-06-2015, 09:48 PM   #30
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I heard they do a questionnaire first to "build" your tune. What mods play the biggest factor in the tune?
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Old 01-06-2015, 09:59 PM   #31
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Yes they do and probably nothing sadly. Even all the mods I listed are not tune required for my car but it's still helpful. In the questions they ask they will have a spot for your intake but not axle backs. So when you fill out the questions they ask you, all you will put is what three tunes you want, what intake you have and I don't know about the gears since yours came from the factory and your car is already programmed for them.


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Old 01-06-2015, 10:03 PM   #32
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Also depending on what mods you might want to do in the future will be helpful with a tune. But even if your car was stock even without an intake you would be able to tell a difference


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Old 01-06-2015, 10:04 PM   #33
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Also forgot to mention that I have 18" wheels. 18x9/255 in front and 18x10/275 in back.


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Go with the 3.55 it will help with the bigger wheels.
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Old 01-06-2015, 10:10 PM   #34
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Yeah that's what I was thinking with having fatter tires in the back. When I still had my smaller stock 17" that's when I was thinking for sure the 3.31s


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Old 01-06-2015, 10:48 PM   #35
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I use mine as a DD, mixed city and highway. Got 3.31's and run a Bama Street Tune. Tires are 18". The get up and go is a lot better than stock. Lost about 2 mpg on the highway. If I was to do it again, I would probably go 3.55's, just to be a little bit more up there in the power band. But shouldn't be a big difference between 3.31 and 3.55. Our V6's "problem" is the low end torque. Gears and a tune will fix that.
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