Welcome to the North American Subaru Impreza Owners Club Monday August 31, 2015
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 > Proven Power Bragging

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 11-02-2008, 10:21 PM   #26
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned

Default

Quote:
Originally Posted by Dutchman View Post
Just to clarify - shop where i got this done has seen OTS cobb stg2 wrx's hit 230/250+. Either way I was at the 197/250 - so are we ruling out the idea of heat soak causing the ecu to pull timing and bring my hp #'s down on the 2 pulls? At this point, I may just take the car to another tuner that can protune the car and diagnose any and all issues - hopefully I dont grenade anything if I drive the car hard.

The car was strong to begine with and i regret not baselining it - now if the car was ~ 195+/225+ stock [assumption], how the hell could i only pick up a few hp with the downpipe and stg2 map? Boost issue? -
AFR= 11.0 and hit 13.0 at peak power
Has the shop shown you any reputable proof of these numbers? Graphs? Didn't you get a graph?

Let's say that you dynoed on Kito's Mustang dyno, like I did, and got 177hp/200tq. Then 195/250 after tuning would be almost exactly in line with Cobb's Stage 2 maps.

Don't "hope" you don't grenade your engine." If there is any doubt in your mind, is it worth several thousand dollars out of your pocket?

If you're going to retune for more hp, you might as well find a cheap VF39 and put it on in the process, as all your supporting mods are in place. I guarantee you'll feel a difference then. Doesn't seem like Stage 2 does much for you.
* Registered users of the site do not see these ads.
Dave D. is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-03-2008, 03:30 PM   #27
Dutchman
Scooby Newbie
 
Member#: 144665
Join Date: Mar 2007
Chapter/Region: Tri-State
Vehicle:
2006 WRX
CGM

Question

If incorrect spark plugs were installed [say for STI or 2L wrx] would my car even run? Also monitoring my mpg as it seems that I burned through my first 1/4 tank in fewer miles than normal - with similar driving..
Dutchman is offline   Reply With Quote
Old 11-03-2008, 03:36 PM   #28
subiebui
Scooby Specialist
 
Member#: 120839
Join Date: Jul 2006
Chapter/Region: MAIC
Location: Centreville,VA
Vehicle:
2014 BRZ Ltd
SWP

Default

i believe the 06 and sti use the same spark plugs anyways.. not sure about the 2L wrx though. and mpg isn't accurate unless you drive exactly the same on the same roads.
subiebui is offline   Reply With Quote
Old 11-03-2008, 11:44 PM   #29
Dutchman
Scooby Newbie
 
Member#: 144665
Join Date: Mar 2007
Chapter/Region: Tri-State
Vehicle:
2006 WRX
CGM

Default Last update for now I guess...

I still think something is wrong as I have run through a 1/2 tank of gas under my normal driving conditions and have seen about a 20+% increase in consumption... could the car be running rich/misfiring/pulling timing? The low-mid range is there, just dont feel any gains over stock up top. My dyno chart does look like the cobb graph below in regars to big torque at 3k, and my hp is there at 4800, but then my hp declined as the cobb graph continues until peak at 5250. The shop guy assured me that the spark plugs were correct, and he is looking into what kind of #'s previous wrx's have put down on that dyno.
Dutchman is offline   Reply With Quote
Old 11-04-2008, 03:01 PM   #30
cathode
Scooby Newbie
 
Member#: 120684
Join Date: Jul 2006
Chapter/Region: Tri-State
Location: Maplejerz
Vehicle:
08 Honda Acura RDX
I want a Fiesta ST

Default

You're not going to feel much gain in the higher rpm ranges. It's just the nature of the TD04. I couldn't believe how much she died off after 5000 rpm after Stg 2, even after a tune. So SOME of this is probably natural, can't say that accounts for all the problems you are having.

My opinion - get tuned ASAP. I got 50 ft-lbs of torque more out of the car with a good tune over the OTS Cobb map.
cathode is offline   Reply With Quote
Old 11-04-2008, 06:10 PM   #31
Badler
Scooby Guru
 
Member#: 133597
Join Date: Nov 2006
Chapter/Region: SCIC
Location: Orange
Default

Quote:
Originally Posted by Dutchman View Post
AFR= 11.0 and hit 13.0 at peak power
13 at peak power is pretty lean. Where are you getting the AFRs from?
Badler is offline   Reply With Quote
Old 11-04-2008, 07:52 PM   #32
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned

Default

Quote:
Originally Posted by cathode View Post
You're not going to feel much gain in the higher rpm ranges. It's just the nature of the TD04. I couldn't believe how much she died off after 5000 rpm after Stg 2, even after a tune.
I agree, the extra torque down low really made the top end seem slow. The VF39 really evened things out. I'd still consider bolting one on if I were you. By the way, Stage 2 same mileage; VF39 2mpg better.
Dave D. is offline   Reply With Quote
Old 11-05-2008, 04:40 AM   #33
C-grunt
Scooby Specialist
 
Member#: 152713
Join Date: Jun 2007
Chapter/Region: SWIC
Location: North Peoria
Vehicle:
2010 G37 Sedan
Gray

Default

Cant the AP monitor boost like a boost gauge? Maybe your losing some boost or its low for whatever reason.

When I went stage 2 tuned I didnt notice a huge gain up top. There was some, but nothing like he gain down low. Torque FTW!!
C-grunt is offline   Reply With Quote
Old 11-05-2008, 09:06 AM   #34
Blacksails192
Scooby Specialist
 
Member#: 142686
Join Date: Mar 2007
Chapter/Region: Tri-State
Location: NY
Vehicle:
back to european

Default

well keeping in mind he has a shelf map and every car reacts differently... if you got a protune and had those numbers you could be disapointed
Blacksails192 is offline   Reply With Quote
Old 11-05-2008, 10:51 AM   #35
Chris_Lee
Scooby Specialist
 
Member#: 110667
Join Date: Mar 2006
Chapter/Region: MAIC
Location: Chesapeake, VA
Vehicle:
2006 WRX

Default

Dyno results from stage 1 to stage 2 are usless without a good base run to measure the percentage of change in performance.
Chris_Lee is offline   Reply With Quote
Old 11-05-2008, 12:03 PM   #36
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned

Default

Quote:
Originally Posted by C-grunt View Post
Cant the AP monitor boost like a boost gauge? Maybe your losing some boost or its low for whatever reason.

When I went stage 2 tuned I didnt notice a huge gain up top. There was some, but nothing like he gain down low. Torque FTW!!
I guess I am the VF39 whore here. Get one for that 06 of yours!
Dave D. is offline   Reply With Quote
Old 11-05-2008, 06:12 PM   #37
Dutchman
Scooby Newbie
 
Member#: 144665
Join Date: Mar 2007
Chapter/Region: Tri-State
Vehicle:
2006 WRX
CGM

Default

Thanks for the words of wisdom guys. I'll be monitoring my mpg this week - seems like it may be back to normal now and I was just ripping the car too hard after the stg2 install. Bringing it back to the shop next week for a 'checkup' - and may wind up bringing it to another shop here to get it protuned and checked out as proactive maintenance. She seems fast off idle to ~4k - then drops off quick. Peak hp was at 4800 then dropped off quick - and I thought it should hold that hp into the 5's.

p.s. I hear you Dave on that VF39 - but probably when the little td04 starts wheezing. This is/was the best car that I've ever owned and have racked up 60k mi since 8/06 - commute 500+ mi/wk. Will be paid off soon and I hope to get many more yrs and miles out of it.
Dutchman is offline   Reply With Quote
Old 11-06-2008, 01:02 AM   #38
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned

Default

Quote:
Originally Posted by Dutchman View Post
This is/was the best car that I've ever owned...
Truth.
Dave D. is offline   Reply With Quote
Old 11-06-2008, 08:20 AM   #39
Chris_Lee
Scooby Specialist
 
Member#: 110667
Join Date: Mar 2006
Chapter/Region: MAIC
Location: Chesapeake, VA
Vehicle:
2006 WRX

Default

Quote:
Originally Posted by Dave D. View Post
I guess I am the VF39 whore here. Get one for that 06 of yours!
Quote:
Originally Posted by Dutchman View Post
Thanks for the words of wisdom guys. I'll be monitoring my mpg this week - seems like it may be back to normal now and I was just ripping the car too hard after the stg2 install. Bringing it back to the shop next week for a 'checkup' - and may wind up bringing it to another shop here to get it protuned and checked out as proactive maintenance. She seems fast off idle to ~4k - then drops off quick. Peak hp was at 4800 then dropped off quick - and I thought it should hold that hp into the 5's.

p.s. I hear you Dave on that VF39 - but probably when the little td04 starts wheezing. This is/was the best car that I've ever owned and have racked up 60k mi since 8/06 - commute 500+ mi/wk. Will be paid off soon and I hope to get many more yrs and miles out of it.
The vf39 is the perfect low budget mod for the 06 WRX with huge gains. I couldn't be happier with my set-up. Also if you are still using factory piping after your dp, you are not getting the most out of your stage 2 tune. You need the freer following exhaust.
Chris_Lee is offline   Reply With Quote
Old 11-06-2008, 08:37 AM   #40
BENSREX
Scooby Specialist
 
Member#: 39718
Join Date: Jul 2003
Chapter/Region: MAIC
Location: NOVA
Vehicle:
2007 WRX

Default

Dutchman... my #s on a Dynojet:

Stage 2 Cobb OTS 200whp, 270wtq
Protuned 218 whp, ??? wtq (didn't hook it up to read the tq)

I'm with you though, my car does NOT feel fast. I'm actively searching for a VF39 and then I'll probably locate a GM BCS, larger TMIC, and possibly an intake.

Good luck with the car! Also, you'll notice a little decrease in mpg after the reflash. I get REALLY bad mpg after the reflash, but on the 2nd tank of gas... I'm back to normal (300 miles to a tank of gas).
BENSREX is offline   Reply With Quote
Old 11-06-2008, 04:09 PM   #41
Dutchman
Scooby Newbie
 
Member#: 144665
Join Date: Mar 2007
Chapter/Region: Tri-State
Vehicle:
2006 WRX
CGM

Have a Nice Day?

Yes - 1st tank of fuel had me worrying. 2nd tank now looks to be on par for stg2 map at ~ 360+/-. The whing is, without exaggeration I used to get 425 +/- a tank on hgwy trips at avg speed ~ 72. So this reduction in mpg hurts a little but is offset by the decreasing gas prices.

p.s. My 06' stock would've killed my stock 03' - another reason why I was initially upset with my dyno #'s compared to what 2L wrx's supposedly put down on that dyno. I have an appoint next wk with the shop to do a quick once over - maybe make another dyno pull. I'm also thinking about taking a trip to MSPT for a pro-tune. I'll keep this thread updated in case I do find a physical trouble with the car.
Dutchman is offline   Reply With Quote
Old 11-06-2008, 04:25 PM   #42
jay25RS
Scooby Specialist
 
Member#: 4273
Join Date: Feb 2001
Chapter/Region: NESIC
Location: CT
Vehicle:
2011 GR-STI
& 2015 Legacy Ltd.

Default

Quote:
Originally Posted by aaronmsadler View Post
13 at peak power is pretty lean. Where are you getting the AFRs from?
If this was at the tailpipe, what is the correction factor for running a catted dp?
jay25RS is offline   Reply With Quote
Old 11-12-2008, 09:22 PM   #43
Dutchman
Scooby Newbie
 
Member#: 144665
Join Date: Mar 2007
Chapter/Region: Tri-State
Vehicle:
2006 WRX
CGM

Default

Measured boost today with accessport while driving:
2nd gear maxed at 13.5 psi
3rd gear maxed at 13.5
Looks like i'm not hitting anywhere near the 16.5 that cobb lists
Dutchman is offline   Reply With Quote
Old 11-21-2008, 08:48 AM   #44
BENSREX
Scooby Specialist
 
Member#: 39718
Join Date: Jul 2003
Chapter/Region: MAIC
Location: NOVA
Vehicle:
2007 WRX

Default

Quote:
Originally Posted by Dutchman View Post
Measured boost today with accessport while driving:
2nd gear maxed at 13.5 psi
3rd gear maxed at 13.5
Looks like i'm not hitting anywhere near the 16.5 that cobb lists
Mine was doing the same thing. My tuner had to tighten the wastegate arm as tight as it would go. Then he tuned it again - so I hit around ~18-18.5 psi. Do NOT tighten it all the way and then drive. If you're going to do it yourself (you can) - tighten it a few turns at a time, and then drive carefully. You should notice the boost increasing.
BENSREX is offline   Reply With Quote
Old 11-21-2008, 03:41 PM   #45
Dave D.
NASIOC Supporter
 
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
Vehicle:
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned

Default

My tuner checked a recent dyno pull of mine, and I was losing some good power because the inlet hose had started to leak. Symptoms were apparent heat sink, pulling timing, lean afr's, slightly worse mileage, sometimes a stutter at idle. The leak had come on so gradually I never noticed, just thought the car felt slower because I was getting used to the power.

Tightened the hose up (new inlet coming), and all of the sudden I have at least 25 or more hp by my butt dyno. A huge difference! I think I'm going to get myself a datalogging setup and learn how to use it...
Dave D. 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: (Monroe,WA) 2006 CGM Cobb STG2 STI $27,000 or trade, plus extra parts available. OvrPSId NWIC Private Classifieds 30 07-09-2008 02:06 AM
FS: FLA 2006 WRX Cobb Accessport V1 + Cobb Catless DP stage 2 bargain!!!!!! Idok Engine/Power/Exhaust 11 05-19-2008 11:20 PM
CT/GI: 2002 WRX Cobb Stg2 60k miles Pepo NESIC Private Classifieds 6 11-12-2007 10:45 PM
$25 2006 WRX Cobb Heatshield xrocket21 Private 'For Sale' Classifieds 6 04-07-2006 09:58 AM
2006 WRX + Cobb stg 2 estimates RexusFastus Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 11 08-25-2005 09:09 PM


All times are GMT -4. The time now is 03:57 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.