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Old 01-22-2010, 04:46 PM   #1
Cobb Tuning
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Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default COBB Tuning Surgeline: Weekly Customer Tunes (1/18-1/22)

2.0L w/TD04 tuned with AccessPORT

Location: COBB Tuning Surgeline
Ambient Temp: 47 F Daily Average
Elevation: Approximately Sea Level
Weather: Indoor

2004 Subaru WRX
Tuner: Tim Bailey
Dyno Info: Mustang AWD-500
Peak HP at RPM: 247 WHP@6210RPM
Peak Torque at RPM: 244 WTQ@3650RPM
Baseline hp/tq for a stock on same dyno: 2010 STi: 239 WTQ, 228 WHP
Target Boost: 15 PSI
Target AFR: 11.3:1
Fuel: Pump 92 Octane

Engine/Power Modifications:
-COBB Tuning AccessPORT
-COBB Turboback Exhaust
-Cobb SF Intake/Airbox
-Cobb XLE BOV
-Grimmspeed Catless Up-Pipe


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Old 01-22-2010, 04:47 PM   #2
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default 2.5L w/VF39 tuned with AccessPORT

Location: COBB Tuning Surgeline
Ambient Temp: 47 F Daily Average
Elevation: Approximately Sea Level
Weather: Indoor

2004 Subaru STi
Tuner: Tim Bailey
Dyno Info: Mustang AWD-500
Peak HP at RPM: 306 WHP@5000RPM
Peak Torque at RPM: 345 WTQ@3760RPM
Baseline hp/tq for a stock on same dyno: 2010 STi: 239 WTQ, 228 WHP
Target Boost: 19 PSI
Target AFR: 11.3:1
Fuel: Pump 92 Octane

Engine/Power Modifications:
-COBB Tuning AccessPORT
-Aftermarket Exhaust Manifold
-3" Turboback Exhaust
-Cobb SF Intake/Airbox
-Unorthodox Pulley


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Old 01-22-2010, 04:47 PM   #3
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default 2.5L w/VF48 tuned with AccessPORT

Location: COBB Tuning Surgeline
Ambient Temp: 47 F Daily Average
Elevation: Approximately Sea Level
Weather: Indoor

2010 Subaru STi
Tuner: Tim Bailey
Dyno Info: Mustang AWD-500
Peak HP at RPM: 288 WHP@5690RPM
Peak Torque at RPM: 333 WTQ@3720RPM
Baseline hp/tq for a stock on same dyno: 2010 STi: 239 WTQ, 228 WHP
Target Boost: 19 PSI
Target AFR: 11.5:1
Fuel: Pump 92 Octane

Engine/Power Modifications:
-COBB Tuning AccessPORT
-COBB Downpipe


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Old 01-22-2010, 04:53 PM   #4
Cobb Tuning
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Location: Austin, DFW, Portland, SOCAL
Default

Hey PPB,

We're trying to let you guys know about all the tunes we're accomplishing during the week along with sharing the results of those tunes.

Please feel free to ask any questions or leave any comments

Thanks,

COBB Tuning Surgeline
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Old 01-22-2010, 04:55 PM   #5
hobbesnapoli
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Member#: 221436
Join Date: Aug 2009
Location: PA
Vehicle:
02 WRX vf39

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That's pretty cool, keep them coming!
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Old 01-22-2010, 05:22 PM   #6
Concillian
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Join Date: Feb 2001
Location: Dublin, CA
Vehicle:
2002 WRX Sedan
Midnight Black

Default

Quote:
Originally Posted by Cobb Tuning View Post
Hey PPB,

We're trying to let you guys know about all the tunes we're accomplishing during the week along with sharing the results of those tunes.

Please feel free to ask any questions or leave any comments
Thanks,

This and other professional tuners sharing this kind of information is really helpful. So thanks to all the other professionals who share this info too (Ed, Dom, Jorge, etc...)
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Old 01-22-2010, 05:24 PM   #7
BONFIRE074
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Join Date: Dec 2007
Chapter/Region: NESIC
Location: Canton CT
Vehicle:
2006 Unicorn
Saabaru 9-2x

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15psi out of a 2.0l td04 and 250whp?

tunes look pretty solid though
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Old 01-22-2010, 05:39 PM   #8
Concillian
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Location: Dublin, CA
Vehicle:
2002 WRX Sedan
Midnight Black

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Quote:
Originally Posted by BONFIRE074 View Post
15psi out of a 2.0l td04 and 250whp?
Doesn't matter what the peak boost of the TD04 is, peak power always comes after it starts tapering. It can't keep up with peak boost.

HP peak on that is around 6200ish and boost is going to be tapered down to like 12PSI by then.

Other than that, numbers are just numbers, and if you think the numbers are high, just file that away when you compare future plots from Surgeline. No sense in starting another "who's dyno is high / low / correct / whatever" discussion that will only derail a thread into uselessness.

Last edited by Concillian; 01-22-2010 at 07:44 PM.
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Old 01-22-2010, 10:49 PM   #9
Junior2JZ
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Member#: 64908
Join Date: Jun 2004
Chapter/Region: Tri-State
Location: Tuning 8/9sec Subies @ P&L
Vehicle:
10.8 XT+10.0@143 GR+
9.0@170mph GTR

Default

Quote:
Originally Posted by BONFIRE074 View Post
15psi out of a 2.0l td04 and 250whp?

tunes look pretty solid though
Whats wrong with it?? Its pretty common for a stg2 wrx to make 235-245whp and matching if not higher TQ with 15-16psi of boost.
Look at the baseline for the 08 STI, its 230whp.. Not high and not super low.

Nice work guys!
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Old 01-23-2010, 05:17 AM   #10
Infamous1
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Chapter/Region: SCIC
Location: In So Cal tuning YOU!!! ;)
Vehicle:
2003 Chevy Z06
Black/Black

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Quote:
Originally Posted by Concillian View Post
Doesn't matter what the peak boost of the TD04 is, peak power always comes after it starts tapering. It can't keep up with peak boost.

HP peak on that is around 6200ish and boost is going to be tapered down to like 12PSI by then.
Hit it right on the head there....
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Old 01-24-2010, 01:16 AM   #11
andy sti
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Location: Bend, OR
Vehicle:
'08 STI
DGM

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Need to come and see you guys soon. Hopefully by May I will have Tim tune my car.
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Old 01-24-2010, 11:35 AM   #12
rosss449
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Member#: 183969
Join Date: Jul 2008
Chapter/Region: Tri-State
Location: New York
Vehicle:
JBP WRXInfamoustund
SSM 08 STI

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wow i made 247 on my AMR tuned 2.0 WRX with the same mods as the first post plus gtspec headers perrin TMIC and fuel pump... AMR FTL!!!!!!
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Old 01-24-2010, 11:40 AM   #13
rosss449
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JBP WRXInfamoustund
SSM 08 STI

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^^ and mine is at 19 PSI thats depressing
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Old 01-25-2010, 02:10 PM   #14
Concillian
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Midnight Black

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Quote:
Originally Posted by rosss449 View Post
^^ and mine is at 19 PSI thats depressing


It's already been covered in this thread that TD04 peak boost does not relate to peak power.

With stock TD04, peak power happens at higher RPM than it can sustain peak boost. It's only running around ~12 psi at peak power no matter what your boost is set to. 19 psi vs. 16 psi is irrelevant when only looking at max power numbers. The midrange of the curve will change, but peak power will not.
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Old 01-25-2010, 02:18 PM   #15
Gfunk720
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Quote:
Originally Posted by rosss449 View Post
wow i made 247 on my AMR tuned 2.0 WRX with the same mods as the first post plus gtspec headers perrin TMIC and fuel pump... AMR FTL!!!!!!
Apples to Oranges...

Don't get butthurt because that car is making better #'s on a lower reading dyno.

Are you even aware of what a stock STI puts down on their dyno?
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Old 01-30-2010, 07:33 PM   #16
VTGT
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Default

Any comments on the Surgeline Tune on the 2010 Legacy?

I know you guys did just a tune on one and it put down over 250 whp and 270 wtq.

What kind of potential does the turbo have with a full exhaust?
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