('03-'05) a few questions - Subaru Forester Owners Forum
User Tag List

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 8 (permalink) Old 12-06-2012, 01:13 PM Thread Starter
Forum Member
 
wagonwheels's Avatar
 
Join Date: Nov 2011
Location: scotland
Posts: 333
Car Year: 2004
Car Model: forester XTen
Transmission: manual
a few questions

Ive a 2004 xt and im going for another map after getting a vf41 ,hatch Sti intercooler,full decat and fuel pump fitted.my mapper say it will run 360 flywheel bhp and about 380+lbs running on vpower @99octane.My concern is im still running a standard clutch and worry it will kill it.My other slight concern is in my last 400ish bhp impreza the gearbox gave up after a few months.Are the 5 speed forester boxes also fragile?

Project ducktape commences
wagonwheels is online now  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 12-06-2012, 02:07 PM
Forum Member
 
Shef's Avatar
 
Join Date: Apr 2010
Location: Minneapolis, MN
Posts: 843
Car Year: 2001
Car Model: Forester
Transmission: 4EAT
From my experiences (presonal and read), the OEM clutches are pretty strong. Some guys over on the Naisoc forum have run them up to 370ftlbs at the wheels and they hold up. But if you have higher mileage or it was prevously abused it might be on it's way out even before you add more power. I had the original clutch in mine up til 150K miles and was running a VF39. I only replaced it because I was going to a bigger turbo and didn't want it to fail on the dyno. When I got it off it was getting close to the end of it's life but it never slipped under the power of the VF39. It's a little bit of a crap shoot!

How many miles/kms are on yours?


And sadly yes, the FXT 5 speed is about as fragile as the impreza 5spd as it nearly the same transmission. It has a little higher final ratio so that reduces the load it sees vs. an impreza. Just don't drop the clutch/launch it, keep the fluid fresh and it will treat you well enough. I destroyed my tranmission at the drag strip with a verry aggressive launch but was putting down 345+ tq at the wheels (over 400 at the crank). But I had previously launched on the street with no issues (drag strips are TACKY!).

SOLD :( 04' FXT Billet 20G E85
01' S Premium 4EAT
Shef is offline  
post #3 of 8 (permalink) Old 12-06-2012, 04:38 PM
Forum Member
 
spec_bg's Avatar
 
Join Date: Sep 2009
Location: tennessee
Posts: 932
Car Year: 04
Car Model: forester xt
my clutch doesnt slip at all. im around 350ish to the wheels running a dom1.5. never had problems with the clutch except that the pedal is stiff.ive had a vf43 and no problems with it either and it came on earlier and more aggresive than the dom1.5 i have now
spec_bg is offline  
post #4 of 8 (permalink) Old 12-06-2012, 11:01 PM Thread Starter
Forum Member
 
wagonwheels's Avatar
 
Join Date: Nov 2011
Location: scotland
Posts: 333
Car Year: 2004
Car Model: forester XTen
Transmission: manual
Thanks very much for your help guys.my car has 74k on it so should be ok.I had laugh control and flatfoot shifting etc on the impreza but I understand the fozzy ecu doesnt have those functions available.Bring on some decent power.

Project ducktape commences
wagonwheels is online now  
post #5 of 8 (permalink) Old 12-07-2012, 06:29 AM
Forum Member
 
Shef's Avatar
 
Join Date: Apr 2010
Location: Minneapolis, MN
Posts: 843
Car Year: 2001
Car Model: Forester
Transmission: 4EAT
Another benefit of the stock clutch is that it *might/should* be weaker than the transmission so it will slip rather than breaking the tranny.

Although it might shorten the life of both the clutch and tranny, we can have launch control and flat foot shifting :) At least I have it activated via the Cobb AP.

SOLD :( 04' FXT Billet 20G E85
01' S Premium 4EAT
Shef is offline  
post #6 of 8 (permalink) Old 12-07-2012, 11:54 AM Thread Starter
Forum Member
 
wagonwheels's Avatar
 
Join Date: Nov 2011
Location: scotland
Posts: 333
Car Year: 2004
Car Model: forester XTen
Transmission: manual
Is it called Racerom? using open source mapping i was told its not possible? i was told i had to use Ecutek software to give me those functions on my last hawkeye.I would love them on the fozzy though if possible

Project ducktape commences
wagonwheels is online now  
post #7 of 8 (permalink) Old 12-07-2012, 04:38 PM
Forum Member
 
Shef's Avatar
 
Join Date: Apr 2010
Location: Minneapolis, MN
Posts: 843
Car Year: 2001
Car Model: Forester
Transmission: 4EAT
It's the Cobb AP, here's a link to a list of it's features. Launch control and FFS are at the bottom of the page:
COBB Tuning - Subaru AccessPORT

It costs more than open source tuning but comes with some generic maps that will enable you to make some select modifications without going to a tuner.

SOLD :( 04' FXT Billet 20G E85
01' S Premium 4EAT
Shef is offline  
post #8 of 8 (permalink) Old 12-08-2012, 11:28 AM
Forum Member
 
nate_fisher's Avatar
 
Join Date: Dec 2010
Location: upstate ny
Posts: 3,027
Car Year: 2011
Car Model: turbotek tuned fxt
Transmission: 4eat sport shift
Cobb ap is for usdm cars only so i dont think thats an option for you.
nate_fisher is offline  
Sponsored Links
Advertisement
 
Reply

  Subaru Forester Owners Forum > Technical Forums and Vehicle Assistance > Engine and Exhaust > EJ25 - 2.5L Turbocharged (2004-2013)

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Forester Owners Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome