Welcome to the North American Subaru Impreza Owners Club Thursday August 21, 2014
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 > Subaru Conversions

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 03-22-2012, 05:53 AM   #1
K2e2vin
Scooby Newbie
 
Member#: 308481
Join Date: Jan 2012
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2005 Legacy GT

Default V8/V9 EJ207 in '05 Legacy GT

I'm looking into swapping a V8 or V9 EJ207 into my 2005 Legacy GT(blown engine); I plan on using the stock ECU since I'm assuming the V8 is 16-bit and the V9 uses an immobilizer? Of course, the ECU will be remapped. Would everything "play" OK?

As far as the actual engine, I've run into the issue of the DBW stock setup and the V8/V9s using DBC. I've read that using a 06-07 WRX or 04-07 STi manifold would work; but does this mean I need to swap over my TGV's too(or would I need the intake manifold's original TGV; assuming different bolt pattern), and would the original LGT TBW throttle body bolt to the WRX or STi manifold? Also, would I just be reusing my old engine harness(main thing is if I were to do top-feed conversion, they would still fit)?

Sorry for so many questions; I've been searching for basically a week now and couldn't find the exact answers I was looking for.

Thanks, Kevin
* Registered users of the site do not see these ads.
K2e2vin is offline   Reply With Quote
Old 11-23-2012, 02:23 PM   #2
Chromes
Scooby Newbie
 
Member#: 287917
Join Date: Jul 2011
Thumbs up

Quote:
Originally Posted by K2e2vin View Post
I'm looking into swapping a V8 or V9 EJ207 into my 2005 Legacy GT(blown engine); I plan on using the stock ECU since I'm assuming the V8 is 16-bit and the V9 uses an immobilizer? Of course, the ECU will be remapped. Would everything "play" OK?

As far as the actual engine, I've run into the issue of the DBW stock setup and the V8/V9s using DBC. I've read that using a 06-07 WRX or 04-07 STi manifold would work; but does this mean I need to swap over my TGV's too(or would I need the intake manifold's original TGV; assuming different bolt pattern), and would the original LGT TBW throttle body bolt to the WRX or STi manifold? Also, would I just be reusing my old engine harness(main thing is if I were to do top-feed conversion, they would still fit)?

Sorry for so many questions; I've been searching for basically a week now and couldn't find the exact answers I was looking for.

Thanks, Kevin

free bump, i also want to know
Chromes is offline   Reply With Quote
Old 12-07-2012, 09:52 PM   #3
Chromes
Scooby Newbie
 
Member#: 287917
Join Date: Jul 2011
Default

Anyone?
Chromes is offline   Reply With Quote
Old 12-10-2012, 02:34 PM   #4
2JZ
Scooby Newbie
 
Member#: 291949
Join Date: Aug 2011
Location: Toronto
Default

Its been done before

http://montreal.kijiji.ca/c-autos-et...AdIdZ432840996

contact the seller and ask away
2JZ is offline   Reply With Quote
Old 12-10-2012, 10:00 PM   #5
lukeskywrx
Scooby Specialist
 
Member#: 59837
Join Date: Apr 2004
Chapter/Region: SWIC
Location: Arizona
Vehicle:
2004 Spec-C Type RA
What MAF? -Speed Density!

Default

It takes some work but the results are worth it


http://forums.nasioc.com/forums/show....php?t=2372623
lukeskywrx is offline   Reply With Quote
Old 12-11-2012, 03:14 PM   #6
Chromes
Scooby Newbie
 
Member#: 287917
Join Date: Jul 2011
Thumbs up

Quote:
Originally Posted by 2JZ View Post
Its been done before

http://montreal.kijiji.ca/c-autos-et...AdIdZ432840996

contact the seller and ask away

he is running exhaust manilfold,up-pipe and twinscroll turbo on a ej255...

thanks for the input
Chromes is offline   Reply With Quote
Old 12-11-2012, 03:14 PM   #7
Chromes
Scooby Newbie
 
Member#: 287917
Join Date: Jul 2011
Thumbs up

Quote:
Originally Posted by lukeskywrx View Post
It takes some work but the results are worth it


http://forums.nasioc.com/forums/show....php?t=2372623

thanks bro
Chromes is offline   Reply With Quote
Old 12-11-2012, 04:31 PM   #8
kpluiten
Scooby Guru
 
Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
Now with 100% more Spec-C

Default

My thread has some more pictures and details in addition to that one Luke posted above. I am doing this conversion on my 2006 WRX right now. I'm about a month out from finishing it.

Check out pages 12+ or so:
http://forums.nasioc.com/forums/show....php?t=2061849
kpluiten is offline   Reply With Quote
Old 02-17-2013, 09:23 AM   #9
K2e2vin
Scooby Newbie
 
Member#: 308481
Join Date: Jan 2012
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2005 Legacy GT

Default

Just thought I'd update for those curious:

Got it running 100%!

The fitment on mine is a little bad since I used mix/matched parts from my LGT and an STi manifold; but the if you get the a complete USDM STi "top end"(waterpipes, etc.) then it should work/fit just fine. The intercooler fitment should be addressed though because the DBW TB is different(refer to "STi intercooler" swap threads, basically need different elbows for the Y-pipe and TB). I should note that I also had to reuse the "accessories" from the LGT(mainly P/S and A/C; alternator looked like it was interchangeable).

On mine, there was nowhere to hook up the EGT sensor so it was disabled. Also, to avoid milling the driver's side head I went with an aftermarket hall sensor that was a smaller diameter, fabbed up a mount, and installed it so it was offset in the cam sensor bore(this pushes the sensor back a couple millimeters, which allows it to read the trigger edge). The stock LGT cam sensor was used on the passenger side but the mount hole was slotted. No CELs and works just fine. Also the stock LGT intake cams were swapped over.(Do this before dropping the motor in!!! I paid a lot because the shop that swapped the motor over didn't do it)

It should also be noted, with no cam sensors installed, it takes a while to start up(almost 5s).

When tuning, one thing I overlooked was I reused the O2 sensor that came with the engine swap, and OL/CL transition. Without adjusting for these, my car felt like the power was oscillating on/off during CL. Turns out, the scaling of the O2 sensor on the EJ207 engine is way different, and OL transistion is much sooner on the EJ207.

Last edited by K2e2vin; 02-17-2013 at 09:38 AM.
K2e2vin is offline   Reply With Quote
Old 02-24-2013, 02:35 PM   #10
army21b
Scooby Specialist
 
Member#: 228116
Join Date: Oct 2009
Chapter/Region: MWSOC
Location: Fort Leonard Wood, MO
Vehicle:
2008 FXT Sports
AW

Default

Pics! how does it drive, i thought of doing the same but was worried about a lack of torque for such a heavy car.
army21b is offline   Reply With Quote
Old 02-24-2013, 03:16 PM   #11
K2e2vin
Scooby Newbie
 
Member#: 308481
Join Date: Jan 2012
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
2005 Legacy GT

Default

I'll upload pics when I get the chance, though doesn't really look anything special(except that it's messy due to "slapping parts together"; still looking for parts to clean that up).

Even though it's a smaller engine, the HP is higher on the 2.0l and I believe torque is around the same but comes in earlier on the EJ207 due to the twin-scroll turbo and more aggressive AVCS mapping.

The LGT isn't that much more heavier than the STis; I think about 150-200lbs more. I've seen cars with a much lower torque/weight ratio(especially naturally aspirated cars).
K2e2vin is offline   Reply With Quote
Old 02-24-2013, 03:23 PM   #12
army21b
Scooby Specialist
 
Member#: 228116
Join Date: Oct 2009
Chapter/Region: MWSOC
Location: Fort Leonard Wood, MO
Vehicle:
2008 FXT Sports
AW

Default

I see.

I was looking for more like swap pics, things you had to modify, etc.
army21b 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: Legacy GT Head Unit/HVAC out of an '05 Legacy GT Wagon Geoff Interior/Dressup/Audio & Security 0 07-14-2009 12:33 PM
WTB in NH: (2) '05 Legacy GT Stock 5-Spoke Wheels ksnh Private 'Wanted' Classifieds 3 12-05-2008 11:21 PM
FS: '05 Legacy GT Limited Wagon in PDX gavin NWIC Private Classifieds 2 12-28-2007 03:43 PM
WTB: '05+ Legacy GT/MP3 Stereo /w Aux in Geoff Private 'Wanted' Classifieds 0 05-25-2007 03:13 PM
Gauging interest in Endless Brake Pads for '05 Legacy GT RaceComp Engineering Legacy Forum 6 03-14-2005 09:43 AM


All times are GMT -4. The time now is 01:06 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.