Welcome to the North American Subaru Impreza Owners Club Tuesday June 30, 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 Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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 04-28-2006, 03:05 PM   #1
Xtant
Scooby Newbie
 
Member#: 105710
Join Date: Jan 2006
Chapter/Region: TXIC
Location: Cedar Park, TX
Vehicle:
2006 WRX Wagon
WR Blue Pearl

Default 06 WRX Turbo Upgrade Question

So I've been lurking for months now checking out threads and doing research but I haven't really been able to get exactly the information I'm looking for. I have an 06 Wagon which I want to upgrade the turbo on. Currently it's bone stock. With the turbo upgrade I planned in doing a TBE, fuel pump, TMIC and EM of some sort (still undecided). I have some particular and specific goals and restrictions on this.
  • I do not want a rotated or any setup requiring a FMIC
  • I want to utilize stock location
  • I want the ability to put down somewhere in the neighborhood of the mid 300's to the ground
  • I do not want complicated alky or water injection
  • The car will be used as a daily driver
  • I do not want to do anything to the stock rotating assembly

I'm open to ideas on how to best get to where I want to be. I'm a newbie to turbo setups so please forgive any possible ignorance on this subject. If cams are required to get to where I want to be that is accecptible as long as the car remains easily daily drivable. That is about the extent of the motor work I'd be willing to do to beyond the support turbo requirements. I welcome your thoughts and suggestions. Thanks!
* Registered users of the site do not see these ads.
Xtant is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-28-2006, 03:34 PM   #2
jeeps1998
Scooby Newbie
 
Member#: 99473
Join Date: Oct 2005
Location: WA
Vehicle:
2006 WRX TR stg 2
Blue

Default

I would recommend getting the Cobb AP first then the 18G turbo, TBE, and any TMIC other than the STI TMIC. You can run a STI TMIC, but if you plan on putting mid 300's down then you will probably want something else. With this setup you should be at 288 AWHP. Thats all that I plan on doing because I don't want to upgrade my transmission. Good luck.
jeeps1998 is offline   Reply With Quote
Old 04-28-2006, 03:37 PM   #3
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Did you read my Turbo FAQ? You need to state your spool wants as well. Learn compressor map reading and find your own turbo or ask a PRO like Jerry at Deadbolt for their opinion. Choosing a turbo is a V E R Y long and thoughtful process....research three times, wait, then do so again. After much more thought.....buy.
Unabomber is offline   Reply With Quote
Old 04-28-2006, 04:20 PM   #4
Chiketkd
Scooby Guru
 
Member#: 71634
Join Date: Sep 2004
Chapter/Region: MAIC
Location: C-Ville, VA
Vehicle:
In hibernation...

Default

Depending on how much $$$ you want to spend, you can get a low mileage STI VF39, STI TMIC, 3" TBE and Cobb AP with the stage 3 (VF39 Map) and you will be right around 275whp.

From there spend $400 for a 'safe' protune and you'll be knocking on 300whp. Not the mid 300's you're looking for, but a solid start.

If you'd really like a turbo from the start that's capable of make mid 300's on pump gas, it should be doable on a 20G or FP Green.
Chiketkd is offline   Reply With Quote
Old 04-28-2006, 04:52 PM   #5
Chiketkd
Scooby Guru
 
Member#: 71634
Join Date: Sep 2004
Chapter/Region: MAIC
Location: C-Ville, VA
Vehicle:
In hibernation...

Default

Here's a thread showing an STI that's made 360+whp on pump 92 with an FP Green:

http://forums.nasioc.com/forums/showthread.php?t=993052

He does have a FMIC though. With the 2.5L block in your '06 WRX, you should be able to make 350+whp with a similar safe tune (compression is slightly higher in the WRX block, so you won't be able to hit the same numbers as an STI). However, the life of your trans will be significantly shortened unless you have an automatic (in which case I'd suggest you install 2 tranny coolers in series)
Chiketkd is offline   Reply With Quote
Old 04-28-2006, 05:21 PM   #6
ControlFreak
Scooby Specialist
 
Member#: 99200
Join Date: Oct 2005
Chapter/Region: NWIC
Location: Tacoma, WA
Default

I can't tell you what turbo is best for your situation, it will require some research. I will say that I have an 06 wrx, and I'll be putting on a TurboXS TMIC, Element Tuning 18g, and a protune.

Keep in mind I don't really have any specific whp goals, I'm just looking for a more grunt over the stock turbo with out going crazy and replacing internals to handle more boost and hp.
ControlFreak is offline   Reply With Quote
Old 04-28-2006, 05:49 PM   #7
toekneeyo
Scooby Newbie
 
Member#: 97884
Join Date: Oct 2005
Chapter/Region: SCIC
Location: SoCal
Vehicle:
06 WRX_vf39
06 X5 Black

Default

Fuel Pump is Optional with this set up:

1.)turboback exhaust
2.)Cobb AP stage 2
3.)JDM STI TMIC (cause jdm fits better)
4.)vf39 (used goes for $300-$400 depending on mileage)
or
4.)18G but it's going to cost ya
5.)then load the vf39/18G map with your Cobb AP since stage 2 is no longer needed
6.)enjoy
-if it gets boring after a while
7.)protune
toekneeyo is offline   Reply With Quote
Old 04-28-2006, 05:51 PM   #8
FNR32
Scooby Specialist
 
Member#: 84147
Join Date: Mar 2005
Chapter/Region: South East
Vehicle:
03 WRX
Black

Default

Quote:
Originally Posted by jeeps1998
I would recommend getting the Cobb AP first then the 18G turbo, TBE, and any TMIC other than the STI TMIC. You can run a STI TMIC, but if you plan on putting mid 300's down then you will probably want something else. With this setup you should be at 288 AWHP. Thats all that I plan on doing because I don't want to upgrade my transmission. Good luck.
I agree w/ jeeps
FNR32 is offline   Reply With Quote
Old 04-28-2006, 11:43 PM   #9
juste_frank
Scooby Newbie
 
Member#: 109265
Join Date: Mar 2006
Chapter/Region: E. Canada
Location: montreal
Vehicle:
2006 WRX sleeved
built engine

Default

My car is a daily driver 2006 wrx.
List of mods:

TD06h16 turbo tuned @16 psi (conservative tune)
custom up-pipe 2.5"
custom turbo-back 3" w/high-flow cat in downpipe
silicon turbo inlet
green air filter
pink injectors
Ecutek
walbro 255 pump
lightweight pulley kit


currently at 291 whp
juste_frank is offline   Reply With Quote
Old 04-29-2006, 10:07 AM   #10
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

Quote:
Originally Posted by juste_frank
My car is a daily driver 2006 wrx.
List of mods:

TD06h16 turbo tuned @16 psi (conservative tune)
custom up-pipe 2.5"
custom turbo-back 3" w/high-flow cat in downpipe
silicon turbo inlet
green air filter
pink injectors
Ecutek
walbro 255 pump
lightweight pulley kit


currently at 291 whp
Did your turner require the fuel system upgrades? Or was that just a prefrence? Also same question for the up-pipe.
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 02:46 PM   #11
slipstreamxk1
Scooby Newbie
 
Member#: 99280
Join Date: Oct 2005
Chapter/Region: MAIC
Location: Buffalo, NY
Vehicle:
2006 WRX LTD
OBP

Default

wow man you didnt need to buy pinks for your car... theyre the same flow rate!

and why did you make a custom up pipe? unless you were going to change the headers it really doesnt mean much in the 06's. nice numbers other wise!
slipstreamxk1 is offline   Reply With Quote
Old 04-29-2006, 03:07 PM   #12
juste_frank
Scooby Newbie
 
Member#: 109265
Join Date: Mar 2006
Chapter/Region: E. Canada
Location: montreal
Vehicle:
2006 WRX sleeved
built engine

Default

The tuner recommended to change the pump. And for the injectors, well at the time we had no idea about the flow rate of the 06's. The up-pipe was optionnal (the 06's have no cat in up-pipe) but give a little more throttle response. Very happy with this setup but will probably put a bigger TMIC. Also, with this kind of power the clutch barely holds and can't stand any launch.
juste_frank is offline   Reply With Quote
Old 04-29-2006, 04:41 PM   #13
mdd1986
Scooby Specialist
 
Member#: 83450
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: Westchester NY
Vehicle:
2000 Audi S4 Stage 3
Silver

Default

i think that 290whp is good for a conservative tune, but on that turbo u should be over at least 300whp with your setup. I think that for what your looking for the 20g is the perfect option. It will give u decent spoolup and will deff be able to hit 350whp on it with the right tune. The only thing is that you might want to thiink about upgrading your tranny b4 u do this.
mdd1986 is offline   Reply With Quote
Old 04-29-2006, 05:07 PM   #14
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

Quote:
Originally Posted by mdd1986
i think that 290whp is good for a conservative tune, but on that turbo u should be over at least 300whp with your setup. I think that for what your looking for the 20g is the perfect option. It will give u decent spoolup and will deff be able to hit 350whp on it with the right tune. The only thing is that you might want to thiink about upgrading your tranny b4 u do this.

What about upgrading the internals? 350 whp is quite a bit on the stock WRX guts don't you think?
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 05:14 PM   #15
slipstreamxk1
Scooby Newbie
 
Member#: 99280
Join Date: Oct 2005
Chapter/Region: MAIC
Location: Buffalo, NY
Vehicle:
2006 WRX LTD
OBP

Default

from what i understand the 06 internals are the same as the sti so theyre good for about 450 crank. Pistons are really the only thing needing upgrades beyond that point.

I understand about the flow rates on the injectors in the 06 but wasnt sure the orientation before i went and bought some of my own. the 06 wrx injectors are side feed correct?
slipstreamxk1 is offline   Reply With Quote
Old 04-29-2006, 05:48 PM   #16
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

[quote=slipstreamxk1]from what i understand the 06 internals are the same as the sti so theyre good for about 450 crank. Pistons are really the only thing needing upgrades beyond that point.QUOTE]

I don't think that has been proven just yet. I was under in impression from my readings that most if not all of the wrx internals are diff part numbers than the sti.

Please correct me if i am wrong...it would be great

Chris
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 05:59 PM   #17
Sypher
Scooby Specialist
 
Member#: 106366
Join Date: Jan 2006
Chapter/Region: MAIC
Location: VA
Vehicle:
2006 WRX
Blue

Default

[quote=UndertoW101]
Quote:
Originally Posted by slipstreamxk1
from what i understand the 06 internals are the same as the sti so theyre good for about 450 crank. Pistons are really the only thing needing upgrades beyond that point.QUOTE]

I don't think that has been proven just yet. I was under in impression from my readings that most if not all of the wrx internals are diff part numbers than the sti.

Please correct me if i am wrong...it would be great

Chris
From what I understand from previous post the Entire Block is the same as the STI, pistons, etc, only diff is in the head. Besides STI's engines dont have forged internals any way, problem is once us WRX owners get to the 300WHP range that is IT, anything over would be a problem for the tranny I would imagine. Ide just play it safe. Besides 300WHP is plenty more then enough to SPANK a stage 2 STI, heck youll even beat Stage 2 STI protuned. Oh yeah forgot to mention if you plan on spending that much to boost you might as well buy an STI, I got the WRX 06 TR just so I can have equal performance of an STI for HELLA cheap. Which you can get HELLA cheap.

Last edited by Sypher; 04-29-2006 at 07:24 PM. Reason: Left Out something
Sypher is offline   Reply With Quote
Old 04-29-2006, 06:04 PM   #18
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

gOOD to know.....
Hope i see 300whp with an 18g and STi TMIC
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 06:37 PM   #19
Defiantspaz
Scooby Newbie
 
Member#: 101100
Join Date: Nov 2005
Chapter/Region: NESIC
Vehicle:
04 WRX STi
WR Blue Pearl

Default

I was told the trans in the 06 WRX was sourced from the Forester turbo and is beefier than the previous WRX units.
Defiantspaz is offline   Reply With Quote
Old 04-29-2006, 06:58 PM   #20
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

Quote:
Originally Posted by juste_frank
My car is a daily driver 2006 wrx.
List of mods:

TD06h16 turbo tuned @16 psi (conservative tune)
custom up-pipe 2.5"
custom turbo-back 3" w/high-flow cat in downpipe
silicon turbo inlet
green air filter
pink injectors
Ecutek
walbro 255 pump
lightweight pulley kit


currently at 291 whp
Got any pictures of the setup...or install?
Want to see what i have to look forward too
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 07:14 PM   #21
kn0bby8
Scooby Specialist
 
Member#: 97644
Join Date: Oct 2005
Chapter/Region: Tri-State
Location: Back In NY
Vehicle:
2006 WRX
Black

Default

I have been pondering the same upgrade questions since I bought my car. One week I am donig a gt30 next week, a green, next I am going to wait for the new helix turbo. Now I think the best thing to do for me, also the cheapest out of the others is

VF39
Either STI TMIC or Aftermarket TMIC
Meth/ Water Injection

I can probably get a used VF39 and STI TMIC for arond $700.
Meth/Water Injection kit for around $500
I would install turbo and tmic myself and run cobb stage 3 map until I get the meth installed. I have now Idea how much the install is gonna be but I can't see it being more than $500.
That puts me at $1200 buks for proably around 320WHP.

I only listed the essentials and am probably forgetting sumpin or other.
I will also proabably end up adding
Fuel Pump $100
AVCR $375
Intake $200
BOV $250
Clutch $?

Even with the extras it seems like it will be a cheap way to make just a little more power than the tranny could handle. Down the road if I ever end up doing PPG tranny than I can go BIG!
kn0bby8 is offline   Reply With Quote
Old 04-29-2006, 07:20 PM   #22
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

Nobody wants to go with a mitsu turbo? 16/18/20G
I was going to stay away from the vf series because i heard they crack a lot.
UndertoW101 is offline   Reply With Quote
Old 04-29-2006, 07:32 PM   #23
Sypher
Scooby Specialist
 
Member#: 106366
Join Date: Jan 2006
Chapter/Region: MAIC
Location: VA
Vehicle:
2006 WRX
Blue

Default

eh that whole cracking thing I heard doesnt really affect anything dude. Hell look at it like this, You CAN get a turbo Back for 500$ or less, This is what I did,
Buschur (LOuD AS OPRAH) Catback Exhaust Used 180$
Megan 3 Inch Bellmouth DownPipe (damn good quality for the price) 186$ Shipped
I found a local STI dude whos selling me a STI intercooler for 200$
COBB AP 650$
VF-39 400$ Or 18G 850$ shipped
Add all that up and NO you DONT need a fuel pump........That is Less then 2 Grand I repeat 2 grand to be FASTER then a STOCK STI, and get the same gas mileage youve always been getting. Subaru made it TOO easy to equal an STI's acceleration in 06, PLUS they gave us a TR thats 24k MSRP? Seriously you can get 06's for 22k if your good, add that up, then add Coilovers, Hell STi seats, Kartboy Short Shifter and bushings, Wheels and Tires Enkies or what ever, and your Still saving THOUSANDS and now you can do everything an STI can do but faster and better. And the STock Clutch is more then enough for 300WHP, my friend in a 03 with a VF30 putting down 310WHP is on his stock clutch from when the car was bought New, it now has 70k miles on it.
Sypher is offline   Reply With Quote
Old 04-29-2006, 07:39 PM   #24
Sypher
Scooby Specialist
 
Member#: 106366
Join Date: Jan 2006
Chapter/Region: MAIC
Location: VA
Vehicle:
2006 WRX
Blue

Default

Lol I just think its funny what 05 and down and STI owners say about the 06. They seem to nitpick everything thats wrong with the car or how theres is better, always comes down to looks though. I remember having an argument with an STI owner who swore up and down that my cars fuel injectors were smaller then his. Then I pointed him to Nasioc and Presto, "Well that makes no sense why the WRX injectors are bigger then my STI's" I just cant wait till I put my 18G on and SMOKE a Stage 2 STI protuned (Which I believe is VERY possible) that spent probably more on his Exhaust and Tune alone then I spent on my entire Set up.
Sypher is offline   Reply With Quote
Old 04-29-2006, 07:40 PM   #25
UndertoW101
Scooby Specialist
 
Member#: 100587
Join Date: Nov 2005
Chapter/Region: South East
Location: Land O' Lakes FL
Vehicle:
2012 WRX 5D Ltd.
Silver

Default

[quote=Sypher]eh that whole cracking thing I heard doesnt really affect anything dude. QUOTE]

Um....did you have any more to say on why you think this? I have read a lot about vf's cracking.
Also...I got some quotes for a new VF39 going for 700+
UndertoW101 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
06 WRX turbo Upgrade Questions. 06wrx_WRB Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 8 05-02-2010 10:16 AM
06 WRX brake upgrade question rkjunior Brakes, Steering & Suspension 1 04-26-2010 12:59 PM
06 wrx 18g upgrade questions Wannascooby Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 6 03-18-2010 03:07 PM
06 WRX Turbo Upgrade Progress drmichael Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 11 03-13-2010 03:21 AM
06 WRX turbo upgrade question Sharkey Newbies & FAQs 8 11-10-2006 09:43 PM


All times are GMT -4. The time now is 02:39 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.