Welcome to the North American Subaru Impreza Owners Club Saturday April 18, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Subaru Models > Impreza Forum

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 11-23-2014, 10:41 AM   #1
imprzMF14
Scooby Newbie
 
Member#: 400476
Join Date: Sep 2014
Chapter/Region: Tri-State
Location: Syracuse, NY
Vehicle:
2014 Impreza Sport
Quartz Blue Pearl

Default 2015 cvt tune?

Sorry if this has been covered but I have a 2014 Impreza with the cvt. as we all know the 2015 cvt is supposed to be Improved and "act more like a 6 speed automatic." Does anyone know if a cvt tune is possible through a dealership to retune the cvt like the 15? I wonder if they would just tell me to get a 2015 model..



Sent from my iPhone using NASIOC
* Registered users of the site do not see these ads.
imprzMF14 is online now   Reply With Quote
Old 11-23-2014, 12:08 PM   #2
St33v0
Scooby Newbie
 
Member#: 383410
Join Date: Mar 2014
Chapter/Region: International
Location: Jakarta, ID
Vehicle:
2014 Impreza 2.0 i-S
Dark Grey Mettalic

Default

Not sure if u can tune the cvt, what i did with mine is remapping the torque... A lot better on low rpm


Sent from my iPad using NASIOC
St33v0 is offline   Reply With Quote
Old 11-23-2014, 02:01 PM   #3
hemophilic
Scooby Specialist
 
Member#: 301213
Join Date: Nov 2011
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2012 Imp. Sp. Ltd.
Blue/Silver

Default

Also interested.

Sent from my SCH-I545 using NASIOC mobile app
hemophilic is offline   Reply With Quote
Old 11-23-2014, 03:07 PM   #4
johnplagrange
Scooby Newbie
 
Member#: 406657
Join Date: Nov 2014
Chapter/Region: W. Canada
Location: Red Deer Alberta Canada
Vehicle:
2014 impreza 2.0I sp
ice silver

Default

Quote:
Originally Posted by St33v0 View Post
Not sure if u can tune the cvt, what i did with mine is remapping the torque... A lot better on low rpm


Sent from my iPad using NASIOC
Where did you have your torque remapped. At a dyno shop? I'm interested in having this done on my 2014 4 door sport

Sent from my SGH-I337M using NASIOC mobile app
johnplagrange is offline   Reply With Quote
Old 11-23-2014, 07:08 PM   #5
Angelus911
Scooby Specialist
 
Member#: 89967
Join Date: Jun 2005
Chapter/Region: NESIC
Location: MA
Vehicle:
2012 Impreza Sport
DGM

Default

Zero chance Subaru flashes a different CVT tune for your car than for what year you have
Angelus911 is offline   Reply With Quote
Old 11-23-2014, 07:53 PM   #6
St33v0
Scooby Newbie
 
Member#: 383410
Join Date: Mar 2014
Chapter/Region: International
Location: Jakarta, ID
Vehicle:
2014 Impreza 2.0 i-S
Dark Grey Mettalic

Default

I lived in Indonesia so its not a dyno shop per se... But yeah I guess u can tried it at your local dyno shop, though dont ask me what type of tuning device they wear... Or might wanna try those throttle controller like pivot drive, that also helps...


Sent from my iPad using NASIOC
St33v0 is offline   Reply With Quote
Old 11-23-2014, 07:54 PM   #7
St33v0
Scooby Newbie
 
Member#: 383410
Join Date: Mar 2014
Chapter/Region: International
Location: Jakarta, ID
Vehicle:
2014 Impreza 2.0 i-S
Dark Grey Mettalic

Default

Quote:
Originally Posted by St33v0 View Post
I lived in Indonesia so its not a dyno shop per se... But yeah I guess u can tried it at your local dyno shop, though dont ask me what type of tuning device they wear... Or might wanna try those throttle controller like pivot drive, that also helps...


Sent from my iPad using NASIOC

Oh, and lighweight crank pulley might do some good... Try perrins...


Sent from my iPad using NASIOC
St33v0 is offline   Reply With Quote
Old 02-09-2015, 08:02 PM   #8
Montebear
Scooby Newbie
 
Member#: 407346
Join Date: Nov 2014
Default

Why would you want it to shift like a slushbox?
Montebear is offline   Reply With Quote
Old 02-10-2015, 12:29 AM   #9
cherryfan
Scooby Newbie
 
Member#: 321153
Join Date: May 2012
Location: Colo.
Vehicle:
2012 Premium CVT
Dark Cherry Pearl

Default

I asked my dealer about this, and was told that there have been changes to the CVT itself, and that simply reflashing the CVT tune could introduce unknown side effects.
cherryfan is offline   Reply With Quote
Old 02-10-2015, 02:03 AM   #10
bobdole888
Scooby Newbie
 
Member#: 316658
Join Date: Apr 2012
Vehicle:
2012 Impreza limited
5dr silver

Default

Quote:
Originally Posted by cherryfan View Post
I asked my dealer about this, and was told that there have been changes to the CVT itself, and that simply reflashing the CVT tune could introduce unknown side effects.
Sound like a bunch of lies. Given how little money Subaru spends on R&D, there is zero chance that the CVT hardware has changed.
bobdole888 is offline   Reply With Quote
Old 02-10-2015, 06:19 AM   #11
IveBeenRued
Scooby Newbie
 
Member#: 305466
Join Date: Dec 2011
Vehicle:
2012 Sport Limited
Black

Default

Quote:
Originally Posted by imprzMF14 View Post
Sorry if this has been covered but I have a 2014 Impreza with the cvt. as we all know the 2015 cvt is supposed to be Improved and "act more like a 6 speed automatic." Does anyone know if a cvt tune is possible through a dealership to retune the cvt like the 15? I wonder if they would just tell me to get a 2015 model..



Sent from my iPhone using NASIOC
If it were me I would NOT want my dealership to retune my CVT to make it "act more like a 6 speed automatic". I have driven CVTs without the whole fake gears thing and they are quicker, smoother, and get better fuel economy. I cringe whenever I read a press release about a new car with a CVT that is tuned to mimic a conventional automatic. All this extra tuning just mucks up everything.

For example, in my 2012 there is a sudden drop-off in acceleration at 40 MPH(no change in demand on the accelerator) for no reason besides it is pretending to shift up a gear. If you want to keep accelerating you have to catch it at the right moment and apply about 50% more demand on the accelerator. Combine the added demand with the blatantly retarded fuel injector mapping and system you burn entirely too much fuel to just to get to 60. If it were a smooth acceleration that held say, 2000 RPMs, then the 0-60 time would be quicker and it would burn less fuel.

Moral of the story is that if Subaru didn't take it upon themselves to ease the public into CVTs then our vehicles would have better 0-60 times, smoother acceleration, and would use less fuel.
IveBeenRued is offline   Reply With Quote
Old 02-10-2015, 09:20 AM   #12
Haunty
Scooby Newbie
 
Member#: 319378
Join Date: May 2012
Chapter/Region: MWSOC
Location: West Central MN
Vehicle:
2012 2.0i Sport Ltd.
Satin White Pearl

Default

Quote:
Originally Posted by bobdole888 View Post
Sound like a bunch of lies. Given how little money Subaru spends on R&D, there is zero chance that the CVT hardware has changed.
Thought I heard somewhere that the CVT was made by a subsidiary of Nissan, but can't remember. Seems like the Japanese car companies share a lot of tech anyway.
Haunty is offline   Reply With Quote
Old 02-10-2015, 02:17 PM   #13
CLL_OBP
Scooby Specialist
 
Member#: 310435
Join Date: Feb 2012
Location: Fayetteville, NC
Vehicle:
2012 Sport Limited
Edge 5w20 64,709 miles

Default

Quote:
Originally Posted by imprzMF14 View Post
the 2015 cvt is supposed to be Improved and "act more like a 6 speed automatic."
Interesting you mention this. Even though it has a bigger engine, this is exactly how the 2015 Forester CVT loaner felt when I had it for a week last month. The NVH is noticeably better than the Impreza, of course, but it didn't feel like a CVT.


Sent from my SAMSUNG-SGH-I337 using NASIOC mobile app
CLL_OBP is offline   Reply With Quote
Old 02-11-2015, 10:13 PM   #14
Flyin
Scooby Newbie
 
Member#: 411777
Join Date: Jan 2015
Location: NJ
Vehicle:
2015 Impreza Sport
CWP

Default

Quote:
Originally Posted by Montebear View Post
Why would you want it to shift like a slushbox?
If i had a nice exhaust sound I would prefer to hear it "shift through the gears"

Now that I think about it, if it sounded like a DSG with a quick blip between gears that would be even better.
Flyin is offline   Reply With Quote
Old 03-03-2015, 11:48 PM   #15
bradze
Scooby Specialist
 
Member#: 103208
Join Date: Dec 2005
Chapter/Region: NWIC
Location: Yelm, Wa
Vehicle:
2011 Outback
Azurite Blue

Default

so im not the only one who thought about this. i have a '12. have there been actual hardware changes to the '15s CVT or is it just improved mapping? the '15s are rated at 37mpg highway.
bradze is offline   Reply With Quote
Old 03-04-2015, 11:54 AM   #16
Aphex28
Scooby Guru
 
Member#: 11506
Join Date: Oct 2001
Chapter/Region: NESIC
Location: Nashua, NH
Vehicle:
2015 WRX
WRB +TE37-TA

Default

Well part of the reason is that 15's have direct injection
Aphex28 is offline   Reply With Quote
Old 03-04-2015, 02:43 PM   #17
hemophilic
Scooby Specialist
 
Member#: 301213
Join Date: Nov 2011
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2012 Imp. Sp. Ltd.
Blue/Silver

Default

'15 WRXs have direct injection while '15 Imprezas have port injection.
hemophilic is offline   Reply With Quote
Old 03-04-2015, 04:04 PM   #18
Aphex28
Scooby Guru
 
Member#: 11506
Join Date: Oct 2001
Chapter/Region: NESIC
Location: Nashua, NH
Vehicle:
2015 WRX
WRB +TE37-TA

Default

Ah. Didn't realize. I figured they had the FA motor in there. It's still the EJ?
Aphex28 is offline   Reply With Quote
Old 03-05-2015, 11:44 AM   #19
hemophilic
Scooby Specialist
 
Member#: 301213
Join Date: Nov 2011
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2012 Imp. Sp. Ltd.
Blue/Silver

Default

2015 WRX has the FA20DIT (direct injection turbo)
2015 STI has some form of carryover 2.5L EJ (I think?)
2012+ Imprezas and Crosstreks have FB20
BRZ has FA20 (Toyoa DS4 hybrid port and direct injection)
hemophilic is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 05:16 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.