Welcome to the North American Subaru Impreza Owners Club Saturday October 25, 2014
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 General > News & Rumors

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 11-14-2012, 02:53 PM   #976
Uncle M
Scooby Newbie
 
Member#: 337879
Join Date: Nov 2012
Location: Saint Augustine, Florida
Vehicle:
2006 Forester X Prem
Red

Default

Quote:
Originally Posted by 53x12 View Post
Is that 93 in Japan or 93 in US? Don't we use different methods?
Both Inside Line and Automobile simply state that it's good for 250 hp on 93 octane and 230 hp on 91 octane. They don't make a distinction between Japanese or U.S. 93 octane. Just guessing that since this is the U.S. version being tested that they are referring to U.S. 93 octane but I could be wrong. The Subaru site just mentions "premium gas".
* Registered users of the site do not see these ads.
Uncle M is offline   Reply With Quote
Old 11-14-2012, 02:55 PM   #977
gggplaya
Scooby Newbie
 
Member#: 139444
Join Date: Feb 2007
Location: PA
Vehicle:
2008 Impreza
Dark Gray

Default

Quote:
Originally Posted by Uncle M View Post
Both Inside Line and Automobile simply state that it's good for 250 hp on 93 octane and 230 hp on 91 octane. They don't make a distinction between Japanese or U.S. 93 octane. Just guessing that since this is the U.S. version being tested that they are referring to U.S. 93 octane but I could be wrong. The Subaru site just mentions "premium gas".
Yea, Commifornia. I like the weather, but man i hate your politicians.
gggplaya is offline   Reply With Quote
Old 11-14-2012, 02:58 PM   #978
bblacha
Scooby Newbie
 
Member#: 60238
Join Date: Apr 2004
Location: Austin, TX
Vehicle:
2005 Forester X

Default

Quote:
Originally Posted by gggplaya View Post
It would be the new WRX for someone with a family. Drive them slowly to soccer practice, then take the windy long was home from work.
Yep, that would be me.

I passed on the 2005 manual XT due to terrible fuel economy. This new one I'd buy in an instant.

BTO (Build To Order) didn't work out for LGT... I know it's not the same thing... but given how skittish SOA gets after they get burned on something... not much hope here
bblacha is offline   Reply With Quote
Old 11-14-2012, 02:59 PM   #979
iowasuby
Scooby Newbie
 
Member#: 65311
Join Date: Jun 2004
Location: Iowa
Vehicle:
2014 Forester XT
DGM

Default

Quote:
Originally Posted by chanomatik View Post
I wasn't aware that there was a USDM FA20DIT yet...
You are correct, there's just the non-turbo 20DIT in the BRZ.
iowasuby is offline   Reply With Quote
Old 11-14-2012, 03:04 PM   #980
Snow Drift
Scooby Specialist
 
Member#: 75071
Join Date: Nov 2004
Chapter/Region: Tri-State
Location: NYC
Vehicle:
4 Train - Subway
Past: 05, 08, 11 Red WRXs

Default

Quote:
Originally Posted by chanomatik View Post
I wasn't aware that there was a USDM FA20DIT yet...
Quote:
Originally Posted by iowasuby View Post
You are correct, there's just the non-turbo 20DIT in the BRZ.
Quote:
Originally Posted by mechatricity View Post
Maybe i'm confused- what is the DIT engine in the 2014 FXT?
Oh guys, stop being mean to him. The 2.0DIT engine in the Forester is not USDM as it has not been unveiled in the US yet... that being said, it will come to the US at the LA show on Nov 28.

We do not know what turbo the US model will use as it tends to differ from the twin-scroll'd, EL headered JDM models.

Last edited by Snow Drift; 11-14-2012 at 03:11 PM.
Snow Drift is offline   Reply With Quote
Old 11-14-2012, 03:05 PM   #981
Uncle M
Scooby Newbie
 
Member#: 337879
Join Date: Nov 2012
Location: Saint Augustine, Florida
Vehicle:
2006 Forester X Prem
Red

Default

Quote:
Originally Posted by Snow Drift View Post
All turbo Subarus (and most other premium fuel cars) are tuned for 93 Oct. This is why magazines tend to show slower 0-60 times than we know on the forum as they test in California with garbage 91 octane.
Thanks for the reply Snow Drift. I guess I'll wait until the car magazines actually test them at their own facilities for a better idea of the performance capabilities. I'm assuming 91 octane will be used at that time so I'll be able to better compare the Turbo's performance against it's competitors. Is 93 octane more readily available in Japan?
Uncle M is offline   Reply With Quote
Old 11-14-2012, 03:06 PM   #982
mechatricity
Scooby Specialist
 
Member#: 290592
Join Date: Aug 2011
Chapter/Region: South East
Location: Charlotte, NC
Vehicle:
04 & 06 WRX Wagons
'15 WRX 6MT CWP

Default

Quote:
Originally Posted by Snow Drift View Post
Oh guys, stop being mean to him. The 2.0DIT engine in the Forester is not USDM as it has not been unveiled in the US yet... that being said, it will come to the US at the LA show on Nov 28.

We do not know what turbo the US model will use as it tends to differe from the twin-scroll'd, EL headered JDM models.
thanks. That's what i was getting at- i was holding out hope that the not-yet-USDM setup would remain twinscroll.
mechatricity is offline   Reply With Quote
Old 11-14-2012, 03:14 PM   #983
Snow Drift
Scooby Specialist
 
Member#: 75071
Join Date: Nov 2004
Chapter/Region: Tri-State
Location: NYC
Vehicle:
4 Train - Subway
Past: 05, 08, 11 Red WRXs

Default

Quote:
Originally Posted by Uncle M View Post
Is 93 octane more readily available in Japan?
In Japan they use a different metric. I believe the premium fuel in Japan in 98 ROM. Which is a better fuel than our 93 oct. That is also why their STI's have had 2.0L, twin scroll, higher redline, to make 300 hp compared to the 2.5L we have.

Quote:
Originally Posted by mechatricity View Post
thanks. That's what i was getting at- i was holding out hope that the not-yet-USDM setup would remain twinscroll.
I believe, the 10+ Legacy GT in the US has a twin scroll now that it uses the low/front mounted turbo. So there is a case the XT will use it as well, just not sure which turbo. The Legacy 2.0DIT makes 296hp compared to the XT's rated 250.
Snow Drift is offline   Reply With Quote
Old 11-14-2012, 03:24 PM   #984
The Duke
Scooby Specialist
 
Member#: 264877
Join Date: Nov 2010
Default

Quote:
Originally Posted by Snow Drift View Post
In Japan they use a different metric. I believe the premium fuel in Japan in 98 ROM. Which is a better fuel than our 93 oct. That is also why their STI's have had 2.0L, twin scroll, higher redline, to make 300 hp compared to the 2.5L we have.



I believe, the 10+ Legacy GT in the US has a twin scroll now that it uses the low/front mounted turbo. So there is a case the XT will use it as well, just not sure which turbo. The Legacy 2.0DIT makes 296hp compared to the XT's rated 250.
The lowest grade in Japan is something like 94 here, and thier highest is like 98 octane. That's part of the reason they're into Turbo's so much, why theyhave such small engines (partly, taxes on engine liter size is also a big role), and how they get so much power out of thier cars. Europe is the same way, they have up to 96 octane at least.


It's also why thier gas is more expensive than ours too...
The Duke is offline   Reply With Quote
Old 11-14-2012, 03:28 PM   #985
53x12
Scooby Specialist
 
Member#: 206332
Join Date: Mar 2009
Location: In a tent
Default

Quote:
Originally Posted by Cocoa Beach Bum View Post
Some of the reviews point out that max HP on the XT drops from 250 to 230 when octane drops from 93 to 91. I imagine the XT's max HP would drop below 200 if you run it on 87 octane.

Running 87 octane in the new XT might not reduce highway fuel economy when cruising at a steady speed on a level highway. However I do think highway fuel economy would suffer while driving on I-70 up to the Eisenhower Tunnel or Vail Pass, because engine load would be much higher and spark advance would have to be retarded to avoid knock.

You really think 87 would sap it of that much power? Getting awfully close to 2.5X numbers at that point. XT= 93 octane or might as well get 2.5X if you want to run 87.

How do Ford/Kia/Hyundai get such good numbers on regular fuel with their turbos?
53x12 is offline   Reply With Quote
Old 11-14-2012, 03:44 PM   #986
JC
NASIOC Supporter
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2006 Pontiac GTO M6
Triumph Street Triple R

Default

Quote:
Originally Posted by The Duke View Post
The lowest grade in Japan is something like 94 here, and thier highest is like 98 octane. That's part of the reason they're into Turbo's so much, why theyhave such small engines (partly, taxes on engine liter size is also a big role), and how they get so much power out of thier cars. Europe is the same way, they have up to 96 octane at least.


It's also why thier gas is more expensive than ours too...
Japan and Europe both use RON not AKI to measure their gas octane. 91 octane US is ~95 RON, so their gas is more or less equivalent to ours from an octane standpoint.
JC is offline   Reply With Quote
Old 11-14-2012, 04:01 PM   #987
vrusso
Scooby Specialist
 
Member#: 207074
Join Date: Mar 2009
Chapter/Region: BAIC
Location: Sacramento California
Vehicle:
2015 STI
You know you're jealous

Default

General rule of thumb of octane conversion

95 RON = 91 AKI
97-98 RON = 92-93 AKI
100 RON = 94ish AKI

anything below 95 RON is your normal crap gas, 87-89 AKI (RON 91-92)

AKI = Anti Knock Index
RON = Research Octane Number

Last edited by vrusso; 11-14-2012 at 04:07 PM.
vrusso is offline   Reply With Quote
Old 11-14-2012, 05:11 PM   #988
neg_matnik
Scooby Specialist
 
Member#: 132389
Join Date: Nov 2006
Chapter/Region: BAIC
Location: SF Bay Area
Vehicle:
2006 WRX Wagon SGM
2003 SV1000S, 2014 DL650

Default

Quote:
Originally Posted by Uncle M View Post
Both Inside Line and Automobile simply state that it's good for 250 hp on 93 octane and 230 hp on 91 octane. They don't make a distinction between Japanese or U.S. 93 octane. Just guessing that since this is the U.S. version being tested that they are referring to U.S. 93 octane but I could be wrong. The Subaru site just mentions "premium gas".
Quote:
Originally Posted by gggplaya View Post
Yea, Commifornia. I like the weather, but man i hate your politicians.
There's an easy work around (depending on availability of E85). I simply mix 20%~25% of E85 with my 91 AKI Cali gas and I end up with 93~94 AKI gas. I have been doing this for the past year or so in my 06 WRX. Of course, this requires a little bit of tuning of open loop AFRs. I shoot for 10.7:1 at max load and it works perfectly for me. All of this has been pioneered and explained by hotrod here: http://forums.nasioc.com/forums/showthread.php?t=803341.
We'll have to find out how the ECU of the direct injected FA20 reacts to an E85 mix.

EDIT: 230HP would be plenty fine for most people though.

Last edited by neg_matnik; 11-14-2012 at 05:30 PM.
neg_matnik is offline   Reply With Quote
Old 11-14-2012, 05:23 PM   #989
Uncle M
Scooby Newbie
 
Member#: 337879
Join Date: Nov 2012
Location: Saint Augustine, Florida
Vehicle:
2006 Forester X Prem
Red

Default

Quote:
Originally Posted by vrusso View Post
General rule of thumb of octane conversion

95 RON = 91 AKI
97-98 RON = 92-93 AKI
100 RON = 94ish AKI

anything below 95 RON is your normal crap gas, 87-89 AKI (RON 91-92)

AKI = Anti Knock Index
RON = Research Octane Number
Is it possible that when the Inside Line and Automobile Magazine prototype drive articles stated that the Turbo is good for 250 hp on 93 octane and 230 hp on 91 octane they were referring to RON and not AKI?
Uncle M is offline   Reply With Quote
Old 11-14-2012, 06:26 PM   #990
iowasuby
Scooby Newbie
 
Member#: 65311
Join Date: Jun 2004
Location: Iowa
Vehicle:
2014 Forester XT
DGM

Default

Thanks for posting that video. I like the Forester much better now after seeing it in 3D vs. the 2D photos. It looks really nice driving around that course.
iowasuby is offline   Reply With Quote
Old 11-14-2012, 06:52 PM   #991
Cocoa Beach Bum
Scooby Specialist
 
Member#: 17355
Join Date: Apr 2002
Default

I found a picture of the rear end of the new USspec Forester XT and it does, indeed, carry the word SUBARU on the rear gate, unlike the Jspec version. It's also missing the wart on the lower part of the passenger side rear-view mirror that is present on the Jspec version.

Cocoa Beach Bum is offline   Reply With Quote
Old 11-14-2012, 07:01 PM   #992
chanomatik
NASIOC Supporter
 
Member#: 159474
Join Date: Sep 2007
Chapter/Region: AKIC
Location: Anchorage (...for now...)
Vehicle:
2013 BRZ Ltd 6MT CBS
SNOSLO

Default

I'm so sick of the roof antennas. Why can't they just be integrated into the car? My 2005 STI didn't have anything protruding. I know for factory-installed NAV they use it, but standard radio shouldn't NEED it. The car has roof racks, but you have to negotiate with that dumb antenna anytime you want to load anything substantial.
chanomatik is offline   Reply With Quote
Old 11-14-2012, 07:07 PM   #993
neg_matnik
Scooby Specialist
 
Member#: 132389
Join Date: Nov 2006
Chapter/Region: BAIC
Location: SF Bay Area
Vehicle:
2006 WRX Wagon SGM
2003 SV1000S, 2014 DL650

Default

Quote:
Originally Posted by chanomatik View Post
I'm so sick of the roof antennas. Why can't they just be integrated into the car? My 2005 STI didn't have anything protruding. I know for factory-installed NAV they use it, but standard radio shouldn't NEED it. The car has roof racks, but you have to negotiate with that dumb antenna anytime you want to load anything substantial.
The antenna easily comes off (simple screw). Although, the base/stub remains.
neg_matnik is offline   Reply With Quote
Old 11-14-2012, 07:14 PM   #994
chanomatik
NASIOC Supporter
 
Member#: 159474
Join Date: Sep 2007
Chapter/Region: AKIC
Location: Anchorage (...for now...)
Vehicle:
2013 BRZ Ltd 6MT CBS
SNOSLO

Default

I'm an all or nothing kind of guy. The base remaining is still bothersome. I'm aware that it just screws off, but I still fail to see why it's come to this in the Year of 2012. I'm assuming HD Radio or something? Off-topic, I know. Your solution of just screwing off the antenna is okay for fitting things up there, but then there goes your reception.
chanomatik is offline   Reply With Quote
Old 11-14-2012, 07:40 PM   #995
neg_matnik
Scooby Specialist
 
Member#: 132389
Join Date: Nov 2006
Chapter/Region: BAIC
Location: SF Bay Area
Vehicle:
2006 WRX Wagon SGM
2003 SV1000S, 2014 DL650

Default

Quote:
Originally Posted by BrysImpreza View Post
Yes and no, the major changes were essentially a complex timing chain and required synthetic oil, there was essentially no net gain in fuel economy you won't get by putting Mobil 1 in an EJ series.
Had it been paired with direct injection or start-stop like the JDM/ EDM models, it might be something to write home about. Instead they saw the sales numbers and took another dump under the hood for the USDM Forester until 2013.
There may not be a huge gain in fuel economy (some gain nonetheless) with the FB25 but it produces a wider and flatter power band than the old EJ because of these very important differences:
- DOHC heads with AVCS.
- longer stroke (promoting earlier torque production), smaller bore and an extra 40cc of total engine displacement (more displacement is also good for torque production obviously).
- there are also all the changes that were made to reduce friction, parasitic losses and pumping losses.
All this stuff adds up in the end and the FB engine is a much better platform for Subaru to build upon.
neg_matnik is offline   Reply With Quote
Old 11-14-2012, 07:52 PM   #996
neg_matnik
Scooby Specialist
 
Member#: 132389
Join Date: Nov 2006
Chapter/Region: BAIC
Location: SF Bay Area
Vehicle:
2006 WRX Wagon SGM
2003 SV1000S, 2014 DL650

Default

Quote:
Originally Posted by chanomatik View Post
I'm an all or nothing kind of guy. The base remaining is still bothersome. I'm aware that it just screws off, but I still fail to see why it's come to this in the Year of 2012. I'm assuming HD Radio or something? Off-topic, I know. Your solution of just screwing off the antenna is okay for fitting things up there, but then there goes your reception.
Yeah losing FM radio is the main inconvenience of having to unscrew the roof antenna (although, I'm pretty sure AM radio would still work ).
On another note, the FM radio sound quality of the 2011 Forester stock HU is bad. The lows and mediums are OK, but the response in the highs is very weak. It's really a problem with the radio section only, as audio quality and response is good for all the other inputs (aux jack, USB and so on).
I hope Subaru got this fixed already.
neg_matnik is offline   Reply With Quote
Old 11-14-2012, 08:05 PM   #997
Snow Drift
Scooby Specialist
 
Member#: 75071
Join Date: Nov 2004
Chapter/Region: Tri-State
Location: NYC
Vehicle:
4 Train - Subway
Past: 05, 08, 11 Red WRXs

Default

Quote:
Originally Posted by Cocoa Beach Bum View Post
I found a picture of the rear end of the new USspec Forester XT and it does, indeed, carry the word SUBARU on the rear gate, unlike the Jspec version. It's also missing the wart on the lower part of the passenger side rear-view mirror that is present on the Jspec version.
The JDM model has it on the driver's side only:

Snow Drift is offline   Reply With Quote
Old 11-14-2012, 08:17 PM   #998
Cocoa Beach Bum
Scooby Specialist
 
Member#: 17355
Join Date: Apr 2002
Default

The Car Connection has published its 'Preview Drive' review of the new USspec Forester at http://www.thecarconnection.com/news...-preview-drive. Remarkably, it has also published a couple of picture galleries from the event itself held at Subaruís proving grounds in Japan. In theory, the reporters invited there were supposed to yield their cameras and phones to Subaru security before entering.
http://www.thecarconnection.com/pict...rive_gallery-1
http://www.thecarconnection.com/pict...rive_gallery-2

That site also has a snap 'Overview' review at http://www.thecarconnection.com/over..._forester_2014 which contains a 69-picture gallery of the new USspec Forester, apparently supplied by SOA.
http://www.thecarconnection.com/phot..._forester_2014
Cocoa Beach Bum is offline   Reply With Quote
Old 11-14-2012, 08:20 PM   #999
Cocoa Beach Bum
Scooby Specialist
 
Member#: 17355
Join Date: Apr 2002
Default

Quote:
Originally Posted by Snow Drift View Post
The JDM model has it on the driver's side only
The picture you posted clearly shows a wart only on the lower part of the passenger side rear-view mirror.
Cocoa Beach Bum is offline   Reply With Quote
Old 11-14-2012, 08:41 PM   #1000
Snow Drift
Scooby Specialist
 
Member#: 75071
Join Date: Nov 2004
Chapter/Region: Tri-State
Location: NYC
Vehicle:
4 Train - Subway
Past: 05, 08, 11 Red WRXs

Default

Quote:
Originally Posted by Cocoa Beach Bum View Post
The picture you posted clearly shows a wart only on the lower part of the passenger side rear-view mirror.
Doh, its RHD!
Snow Drift 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 06:56 PM.


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