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Old 02-14-2013, 10:07 PM   #1
bbrock171
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Member#: 341461
Join Date: Dec 2012
Default 2013 STi Stage 2 Dyno Run

Whatup peeps. Posting my dyno run from yesterday at Mach V. Should have video soon.

Dyno type: Dynojet
Correction Type: SAE
Correction factor: 1.01
Ambient Temperature: 73
Humidity:21%
Max HP: 296
Max TQ: 320

Oh crap, guess I can't post pictures here...Don't feel like trying to find somewhere to host my pictures to link to, so...
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Old 02-14-2013, 11:30 PM   #2
txboyindenver
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Join Date: Nov 2012
Chapter/Region: RMIC
Location: Denver, CO
Vehicle:
2013 WRX STi
DGM

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Can you post your exact list of mods? I have a 2013 STi hatch and went stage 2 yesterday, pulled 238hp/268tq on a dynojet. I have an SPT catback, Cobb down pipe, and accessport with 91 octane map. Just wondering if there might be an easy fix to my issue before I reach out to Cobb.
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Old 02-14-2013, 11:49 PM   #3
toph
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Chapter/Region: NESIC
Location: Lowell, MA
Vehicle:
08 STi SSM 3.5XT-R
15 WRX 6MT Limited CBS

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Quote:
Originally Posted by txboyindenver View Post
Can you post your exact list of mods? I have a 2013 STi hatch and went stage 2 yesterday, pulled 238hp/268tq on a dynojet. I have an SPT catback, Cobb down pipe, and accessport with 91 octane map. Just wondering if there might be an easy fix to my issue before I reach out to Cobb.
Elevation + 91 octane?
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Old 02-15-2013, 03:42 AM   #4
Cobb Tuning
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Location: Austin, DFW, Portland, SOCAL
Default

Quote:
Originally Posted by txboyindenver View Post
Can you post your exact list of mods? I have a 2013 STi hatch and went stage 2 yesterday, pulled 238hp/268tq on a dynojet. I have an SPT catback, Cobb down pipe, and accessport with 91 octane map. Just wondering if there might be an easy fix to my issue before I reach out to Cobb.
Do you happen to have a stock vs. Stage2 comparison? Dyno numbers at extreme elevations can be very difficult to interpret sometimes. If you can find out what a stock 08-13 STi makes on the same dyno, we can figure out if the relative gains are appropriate or not.

Cheers

Lance
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Old 02-15-2013, 05:02 PM   #5
txboyindenver
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Location: Denver, CO
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2013 WRX STi
DGM

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Quote:
Originally Posted by Cobb Tuning View Post
Do you happen to have a stock vs. Stage2 comparison? Dyno numbers at extreme elevations can be very difficult to interpret sometimes. If you can find out what a stock 08-13 STi makes on the same dyno, we can figure out if the relative gains are appropriate or not.

Cheers

Lance
Lance do you have a good phone number I could contact you on? I think it would be easier to discuss that way and I also don't want to hijack this thread! Thanks for your response!
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Old 02-17-2013, 09:04 AM   #6
bbrock171
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Quote:
Originally Posted by txboyindenver View Post
Can you post your exact list of mods? I have a 2013 STi hatch and went stage 2 yesterday, pulled 238hp/268tq on a dynojet. I have an SPT catback, Cobb down pipe, and accessport with 91 octane map. Just wondering if there might be an easy fix to my issue before I reach out to Cobb.
Sorry, suppose that would help...

AEM Intake
Invidia Catless downpipe
SPT Catback
Extra long fuel line to reduce resonance and fuel stutter
Accessport with 20PSI TP tune
93 octane

Elevation was 300ft.
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Old 02-17-2013, 11:10 AM   #7
rwfloberg
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Location: La Plata MD
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SWP

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What is this fuel line mod?
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Old 02-17-2013, 11:28 AM   #8
bbrock171
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Originally Posted by rwfloberg View Post
What is this fuel line mod?
http://www.iwsti.com/forums/2-5-lite...rd-line-3.html

Basically just go buy a 3ft fuel line and some clamps to replace the stock line that feeds the fuel rails. From my understanding it reduces stutter under high load, which is caused by fluid hammer inherent in the fuel system design. This condition can't be tuned out completely because it's a mechanical condition. I'm not an expert, and not entirely sure which model years are affected, but my tuner recommended the mod and it seems to make quite a difference.

It now has zero stutter, pulls nice and smooth even in high gear, low rpm situations.

For anyone looking to install this, you need 5/16th" fuel line, and because of the ring around the hard line on the rail side, my fuel line removal tool wouldn't fit. Instead I just inserted two zip ties on either side to depress and release the clip.

Last edited by bbrock171; 02-17-2013 at 11:34 AM. Reason: Amplifying info.
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