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Old 11-15-2009, 12:58 AM   #1
TonyG
Scooby Newbie
 
Member#: 23681
Join Date: Aug 2002
Location: Ellicott City, MD
Vehicle:
09 2.5GT wagon

Default 13.95@97.9, stage II, 09 Impreza 2.5GT (4eat)

(edited, at the request of moderator)

Event: quarter mile
Location: Cecil County, MD
Ambient Temp: in degrees Fahrenheit, 60
Humidity: 95%
Elevation: ~ sea level
Weather: cloudy, 95% humidity
Track and Conditions: 1/4 mile dragstrip
Tires: Stock

Car: 2009 Impreza 2.5GT
Tuner: Cobb AP stage 2, 93 octane
Dyno Info: n/a
Peak HP at RPM: unknown
Peak Torque at RPM: unknown
Baseline hp/tq for a stock on same dyno: n/a
Target Boost: 15.5 peak, taper to ~10
Target AFR: unknown
Fuel: 93 unleaded
Engine/Power Modifications: Catless Downpipe, everything else stock
Driveline Modifications: stock
Suspension Modifications: stock
Other Modifications: none

Timeslip:


Comments:
-I was pretty surprised, b/c this car was a slug when it was stock (probably a 15+ sec car). Its amazing how only a DP and Cobb AP Stage 2 completely transformed it, especially on the top end.

-This pass was with a 3k rpm brake torque launch. It only takes about 2 sec of brake torque to reach 3000 (unlike my prev 02 4eat wrx, which required ~4 sec).

-The car was driven about 65 miles to the track, and this was my 5th pass in 2.5 hours. I'm sure heart soak played a role

-The stage 2 AP tune was freshly loaded, so the car wasn't running optimally...I think I might be able to pull a 13.5 with better air, and more optimal conditions.

-I compared ther Cobb AP 1/4 mile figures with the track #'s. The AP consistently showed slower ET's (typically 0.2s slower), and higher MPH (1-2 mph faster)
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Last edited by TonyG; 11-16-2009 at 12:53 PM.
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Old 11-15-2009, 03:14 AM   #2
vinxH
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Member#: 159796
Join Date: Sep 2007
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2006 WRX

Default

pretty good from an auto.
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Old 11-15-2009, 12:25 PM   #3
Audiosavvy
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Member#: 150794
Join Date: Jun 2007
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
Qcab dakota 4x4
LT1 Formula Firebird

Default

Please follow this link
http://forums.nasioc.com/forums/show....php?t=1858764

Copy and paste the required format and fill in your information and add it to the first post of this thread, to avoid it being closed.
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Old 11-15-2009, 10:03 PM   #4
TonyG
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Member#: 23681
Join Date: Aug 2002
Location: Ellicott City, MD
Vehicle:
09 2.5GT wagon

Default

Quote:
Originally Posted by Audiosavvy View Post
Please follow this link
http://forums.nasioc.com/forums/show....php?t=1858764

Copy and paste the required format and fill in your information and add it to the first post of this thread, to avoid it being closed.
...Done...
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Old 11-19-2009, 01:37 PM   #5
treads
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Member#: 210431
Join Date: May 2009
Default

does the 2.5GT have the same block / internals as the WRX or STi?
or are there "softer" components in the GT that might be under more stress than the WRX or STi counterpart?

and where can I find more information on aftermarket tuning parts for the 2.5GT?
Is Cobb the only one that has tuning parts for the GT? Do WRX parts bolt-in?

sorry for all the questions
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Old 11-19-2009, 03:05 PM   #6
TonyG
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Member#: 23681
Join Date: Aug 2002
Location: Ellicott City, MD
Vehicle:
09 2.5GT wagon

Default

My impression was that this is just a 2008 WRX with a 4eat transmission instead of the 5-speed. The downpipe I used was for an 08-09 wrx/Sti, nothing specific about the 2.5GT.
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Old 11-19-2009, 03:21 PM   #7
slowgrey08
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Member#: 211738
Join Date: May 2009
Chapter/Region: TXIC
Location: Brandon Tomes Subaru
Vehicle:
2015 STI LE
2014 SWP Forester XT

Default

Quote:
Originally Posted by TonyG View Post
My impression was that this is just a 2008 WRX with a 4eat transmission instead of the 5-speed. The downpipe I used was for an 08-09 wrx/Sti, nothing specific about the 2.5GT.
its an auto 08 wrx.
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