Welcome to the North American Subaru Impreza Owners Club Sunday May 3, 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 > Member's Car Gallery

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 01-03-2012, 12:57 PM   #1
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default Jessekrs123's 1993 Subaru Legacy L EG33 Swap

Well guys, I always felt that my car was inadequate for a member journal, until I finally came across an SVX in fair condition. Yes, my Legacy will be receiving an extra row of pistons sometime in the future.

I have been looking for an SVX for a while now and never came across one that was affordable, or working... Until I found this 1992 SVX that I purchased. The car is in perfectly running condition. At almost 140,000 miles, the engine will be receiving new seals and general maintenance crap. It runs like a top though, no CEL which means no wiring worries, and the car stays nice and cool which is a trouble spot for these cars.

What am I getting myself into??? I already have an unfinished BRAT project, but oh well, I like to keep myself busy so...

Legacy


SVX


Both


I have done hours and hours of research on this swap and from what I have seen, wiring and radiator mounting are going to be the biggest problems. I've been through Jedz build on his Legacy, dirtyimpreza's outback wagon build, biggreens build in his rally Legacy, been through the H6 Impreza resource thread on NASIOC, been through taiden's build mostly youtube videos but very very helpful, jakeachy's youtube videos of his EG33 GC, huck's EG33 swap videos (all of them). Basically there is a lot of info on this swap, and if I hit a snag somewhere there is a lot of good info out there and I'm sure a lot of guys are willing to help me out if I need it.

For wiring, I plan on gutting the SVX harness down to what is only needed for the engine to run (ECU harness) and de-pinning any unnecessary things from the SVX ECU such as any automatic transmission controls and A/C controls (unless I can fab up new lines for A/C to fit the condenser somewhere... possible first EG33 swap with A/C??? Perhaps...). I will be leaving my Legacy harness in, removing the ECU, de-pinning any necessary wires from the Legacy ECU and pinning them into the SVX ECU for things such as the fuel pump and ignition relays, back up power supply, and starter signal so I don't have to re-wire much to merge the harness. I figure the less soldering and crimping, the better. Ofcourse this might constitute drilling new holes into the firewall for the SVX harness, and I'll have some Legacy sensors dangling, but I'll find a spot for those. I want to be able to go back to the EJ22E as fast as possible if needed. This is what I plan, but we'll see what happens because nothing ever goes as planned... If I missed anything let me know!!

As for the radiator, people have success with the Saab 900 turbo radiator, but we'll see when we get there as to what I can use. I want to be able to run 2 radiator fans and use a proper radiator that will accommodate for the cooling needed to keep this engine at proper temperature. I want to also attempt to use the ECU signal to activate the radiator fans (high speed and low). Some people just throw in a relay and switch them on when it gets warm. I want to attempt to use the Subaru radiator fans (either the Legacy or the SVX), but space is a big issue and the fans and the shroud take up a lot of space. If worse comes to worse I'll just get some thin fans and wire them in. All of this will be figured out once I take my front end apart.

The EGR system will be removed and blocked off and some other miscellaneous stuff needed to get the engine operating such as modifying the throttle cable to fit the throttle body and whatnot...

Most of this build is going to be preparation for the engine to go in (wiring and maintenance to the engine, and whatever problems I come across while working on the engine). The engine should bolt right up to the factory mounts, people debate on using the receiving cars mounts or the SVX mounts, or cutting up and fabbing some mounts using the SVX mounts, group N mounts make the engine sit higher (IIRC), fabbing some nice solid steel mounts or what have you. Any way, the engine will drop and fit into the mounts.

The EG33 will slide onto the bell hosing no problem. This ofcourse will be going into my 5 speed Legacy (FWD) so the swapping of clutch/pressure plate and flywheel will be necessary. I dropped in a new clutch into the Legacy some 5,000 miles ago, so I will check on it's condition and determine whether or not to replace it with a fresh one. I'm not sure how the FWD tranny will hold up, but I went through Jedz build on NASIOC into his FWD first gen Legacy (I am pretty certain his was FWD, but I'm not 100%, if I am wrong someone correct me) but unfortunately his engine caught fire due to a injector that got stuck open. This thing will be far from abused or raced, jamming the transmission in and out of gears. Just the occasional spirited driving as all.

And I'm sure there is much more that I have neglected to mention here, but I am pretty sure I covered the basics so far. If you think my plan is completely wrong and stupid let me know. I'm open to any criticism.

Thanks.

Oh yes, here is a vid of the SVX with a current exhaust leak.
Sounds sweet!
* Registered users of the site do not see these ads.

Last edited by Jessekrs123; 01-08-2012 at 05:17 PM.
Jessekrs123 is offline   Reply With Quote
Old 01-05-2012, 03:32 PM   #2
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Spent effing 5 hours today out in my cold driveway attempting to get the interior apart. Boy do they build these things to not be taken apart. Out of 5 hours, I barely got anything done and I'm pulling my hair out at what a pain in the ass it is to get everything apart.

Everything is clipped in and the clips are so hard to get at...




I will be pulling the engine as soon as my father moves his Cummins and I have some space in the driveway.
Jessekrs123 is offline   Reply With Quote
Old 01-05-2012, 03:50 PM   #3
King of Poop
Scooby Specialist
 
Member#: 177880
Join Date: Apr 2008
Chapter/Region: South East
Location: Greensboro, NC
Vehicle:
2002 Wrx Wagon 6sp
Where can I get some cake

Default

good luck! Looks like quite a project. Can't wait to see it done
King of Poop is offline   Reply With Quote
Old 01-06-2012, 07:42 AM   #4
MetalMatty
Scooby Newbie
 
Member#: 305725
Join Date: Jan 2012
Chapter/Region: Tri-State
Location: Homer City, PA
Vehicle:
2003 Impreza WRX
Rally Blue

Default

That'll be awesome once it's done. SVX is a sexy sounding motor.
MetalMatty is offline   Reply With Quote
Old 01-06-2012, 08:56 AM   #5
DjMuzz
Scooby Specialist
 
Member#: 179990
Join Date: May 2008
Chapter/Region: NESIC
Location: Boston / Sturbridge
Vehicle:
'06 STi - WRB
'03 Ninja 636

Default

I used to run around Oakville in my SVX years ago

Now I'm always in favor of hybrid setups - esp in subarus, but in this case I personally would strongly consider selling the legacy and putting that money into saving one of the remaining SVXs. Yes, the parts aren't the easiest to find, but that 3.3L mated with an STi 6-speed is a setup like no other

Either way, best of luck with the swap! Def look forward to seeing the outcome!
DjMuzz is offline   Reply With Quote
Old 01-06-2012, 11:42 AM   #6
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Well fellas, I am pretty sure I figured out the wiring as far as merging the two harnesses go. As previously stated, I will be de-pinning my Legacy ECU and pinning those wires into my SVX ECU. I have mapped out what will need to be de-pinned and re-pinned. The following diagrams illustrate my point:

SVX ECU pinout in respects to merging the Legacy pins:

This diagram does not isolate each connector as a certain letter or number, so I lettered them myself with each connector receiving a corresponding letter under it's position.
(Thanks Taiden for this pinout)

Legacy ECU pinout in respects to merging into the SVX ECU:


(Thanks vrg for these pinouts)

One thing that I had noticed is that every pin that needed to be merged had the same exact pin number in both cases of ECUs. This was very helpful in the following way: If you look at both pinouts, there are 2 power supplies that need to be merged, but neither of them are isolated in any way, they are both labeled the same "Power supply". Example below:


That was a help because I was confused on where it should be re-pinned, but I'm sure it would not have mattered because I'm sure each receives 12 volts and go to the main relay, but I found this trend and figured I'd go the safe way by merging the pins with the matching pin numbers.

And if you look at the rest of the pins that need to be merged, they all share the same pin number.

That is it for now, still waiting on my father to move his truck so I can begin the removal of the engine and get to work on it.
Jessekrs123 is offline   Reply With Quote
Old 01-07-2012, 05:33 PM   #7
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Prepped the engine for removal today. This thing is ready to come out, I just need to borrow an engine hoist... I cannot lift this engine out with help from my father like I did with my Legacy motor...

All accessories removed and whatnot


There is so much space in the front of this engine with the accessories removed... perfect spot for a supercharger.


Parts I'm holding onto


Getting this engine ready to be pulled was a huge pain in the ass. For one, the front tow hooks were bent, probably from bottoming out, which made removing the splash guard ridiculously hard.


Another thing that made prepping difficult was the fact that I could not get the heat shield bolts for the headers, which meant I couldn't get at the header bolts. There are heat shields everywhere and all of the bolts were rooted so I couldn't disconnect any flanges either because the bolts are covered by the heat shields. I ended up having to cut the exhaust up, unfortunately, so I will be needing to weld it all back together when time comes to put it into the Legacy.

Took about 3 hours today just to prep, and if I had a hoist on hand, the engine would be out and getting a nice wash down, because this engine is DIRTY.

Hopefully I can get my hands on a hoist tomorrow or something so I can get the engine out and start replacing parts. Crank and cam seals need to be replaced. Compression will be checked and it will receive a new headgasket either way because it is approaching 140,000 miles and probably a whole bunch of other stuff I come across as I tear it down.

Still have to pull the harness out from the car as well.

That is all for now.
Jessekrs123 is offline   Reply With Quote
Old 01-08-2012, 04:51 PM   #8
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got the ECU out today after work.


Getting the harness out is going to be a royal pain. The ECU is located on the drivers side, yet the harness passes through the firewall on the passenger side.






This should be fun, taking every last part of the dash apart for a bundle of wires.
Jessekrs123 is offline   Reply With Quote
Old 01-12-2012, 05:32 PM   #9
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got the engine out today.



Empty SVX engine bay.


Exhaust parts if anybody wants them. I will be keeping the headers and two front cats.


How high the front end sits with no engine.


I will be getting the transmission out as soon as possible along with the wiring harness. If anybody is interested in an OBDI 4EAT, here is your chance at one with 140,000 miles on it. Shifted and ran good while the car was still running.

I will definitely be kicking this project into high gear with the engine now out. I'll heat up my garage and go to town on it when I get the chance. I'll test out the compression and then begin tearing it down for cleaning.

Still have to get that dreaded wiring harness out...
Jessekrs123 is offline   Reply With Quote
Old 01-15-2012, 05:17 PM   #10
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got a lot of the interior out today along with a poopload of electronics controllers.

Boy this interior was a pain, and there is still much to come out.


Got the cluster out and removed the SVX tach. I will have to wire in on power/ground/tach signal. The Legacy tach is calibrated for a 4 cylinder, so IIRC, the Legacy tach will read 33% faster. With the SVX tach, it will read properly and I don't have to spend $$ on a converter. Custom mounting will be required in the Legacy cluster.




There is no effing room in my garage so the engine is at a standstill right now. Damn EGR pipes/bolts were stuck on good, and while attempting to loosen them, they all snapped like butter. Oh well, EGR will be removed anyway.
Jessekrs123 is offline   Reply With Quote
Old 01-15-2012, 06:27 PM   #11
Alaskan EJ20
Scooby Specialist
 
Member#: 160040
Join Date: Sep 2007
Chapter/Region: AKIC
Location: Anchortown
Vehicle:
2002 Bugi / 1993 L
Symmetry Tuning

Default

subscribed keep up the good work.
Alaskan EJ20 is offline   Reply With Quote
Old 01-19-2012, 03:42 PM   #12
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got a lot of the dash out today and begin tracing wires for the harness.



Heater and blower motor came out.


Dash as it is now, still need to get that middle heater part out.


So many electronics to disconnect, and in 20* weather, pinching connectors and slipping HURTS LIKE A BITCH. Hopefully I can get this harness out soon so I can weed it out in my nice, comfy warm room.
Jessekrs123 is offline   Reply With Quote
Old 01-19-2012, 05:03 PM   #13
Blucid
Scooby Newbie
 
Member#: 305282
Join Date: Dec 2011
Chapter/Region: VIC
Location: Vancouver // Canada
Vehicle:
2011 STI Sedan
Plasma BLUE

Default

Wow, so awesome, keep up the nice build. Those damn dashboards....
loving the pictures as well keep them coming...
Blucid is offline   Reply With Quote
Old 01-19-2012, 07:12 PM   #14
Matt515
Scooby Newbie
 
Member#: 241492
Join Date: Mar 2010
Chapter/Region: NESIC
Location: Bristol CT
Vehicle:
2006 Forester, RBP
Tuned by M@ at WI!

Default

subscribed! my man, its looking good
Matt515 is offline   Reply With Quote
Old 01-19-2012, 07:17 PM   #15
SubIELove
Scooby Specialist
 
Member#: 107571
Join Date: Feb 2006
Chapter/Region: NESIC
Location: Rocky Hill CT
Vehicle:
2004 OBS JDM V8 Sti
UsVERSUSThem WFC #197

Default

Awesome! Bump for a fellow ct'er!
SubIELove is offline   Reply With Quote
Old 01-28-2012, 05:40 PM   #16
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got the harness out today after work!



Boy, was that center heater a PITA to get out. But, now I can weed out the harness in the comfort of my room instead of being outside in the cold taking the interior apart.

Jessekrs123 is offline   Reply With Quote
Old 01-29-2012, 09:40 AM   #17
Matt515
Scooby Newbie
 
Member#: 241492
Join Date: Mar 2010
Chapter/Region: NESIC
Location: Bristol CT
Vehicle:
2006 Forester, RBP
Tuned by M@ at WI!

Default

+1 for comfort
Matt515 is offline   Reply With Quote
Old 01-31-2012, 04:10 PM   #18
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Had a little time between my trig and CAM class to finally get my intake manifold off today. It is so damn nice out, 55* and sunny feels soooooooo good out in my driveway, just wish I could skip class and take more apart but CAM is a cool class so...

This thing looks like some sort of sci-fi monster:


Dual throttle bodies:


And how the engine is now. (I have since covered up the fuel stacks since I took the picture to avoid getting foreign objects in there)


I'll get the fuel stacks off another time, I have no room for parts at the moment so... Once I get those off, I will be using that gasket as a stencil to machine up some phenolic spacers in an attempt to bring intake temps down as far as possible. (Yes, I have some CNC and G-code experience , hooray for ME major)

I will be cleaning up and painting the intake manifold wrinkle red if I can find some sort of commercial oven to bake it in. Pottery place down the road might be able to help me out... Among other things will be painted and cured as well. The bare metal attracts so much dirt and crap it is ridiculous, so I plan on painting as much as possible because that dirt gets on the bare metal and it is a PITA to clean out.

I can port out the intake manifold to match the throttle body because there is a like 1mm overhang from the intake manifold to the throttle body. I have to look more into porting out the entire manifold, we'll see what happens with that.

A lot of what ifs at this point, but still making progress...

Oh yeah, un-taped a lot of the harness, took a good 2.5 hours just to get all the tape and loom off...

Last edited by Jessekrs123; 01-31-2012 at 04:18 PM. Reason: Wiring...
Jessekrs123 is offline   Reply With Quote
Old 02-01-2012, 10:55 PM   #19
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

De-pinned useless SVX pins from the ECU clips today, now I just have to run everything through the rats nest...



Taped pins are the ones I do not need.
Jessekrs123 is offline   Reply With Quote
Old 02-02-2012, 04:56 AM   #20
butlerana
*** Banned ***
 
Member#: 305053
Join Date: Dec 2011
Default

Spent effing 5 hours today out in my cold driveway attempting to get the interior apart.
butlerana is offline   Reply With Quote
Old 02-04-2012, 05:36 PM   #21
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Quote:
Originally Posted by butlerana View Post
Spent effing 5 hours today out in my cold driveway attempting to get the interior apart.
+1 post count?!? GTFO (Invisible advertisement HTML in the quote)

Removed the electrical crap from the intake manifold today, and removed the butterfly valve actuator.


Got the transmission out as well. If anyone is in need of an OBDI AWD 4EAT, let me know. 140k miles, shifted well while the SVX was running.


SVX without the engine or tranny, front end sits higher than my BRAT. That EG33 and 4EAT weigh a ton!


I will be messing around more with the harness tonight.
Jessekrs123 is offline   Reply With Quote
Old 02-04-2012, 11:01 PM   #22
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Ran into a slight roadblock with the wiring. I have ran all of the wires that I need to run the engine except for ECU clip D. Reason being, there are 2 O2 sensors. One of them branches off from the engine harness, and the other branches off from the transmission harness. And both O2 sensors receive ignition power from the ignition relay connector. I will illustrate my problem in the images below.

Here is one O2 sensor, but both of them have the same set-up. This O2 sensor is on the tranny side of the harness:


Tracing the wire:


And here comes my problem. If you look, the White/Red wire from the ignition relay is split from one wire to three. 2 of the wires power both O2 sensors, and the other wire splits to both control unit power supplies for the ECU.

(Hopefully you can read the captions, MS Paint makes text look like crap)

Here is the source of the White/Red wire, as you can see, it sources from the brown ignition relay connector.


So I have put some thought into it and came up with a possible solution to this problem. If I can de-pin the White/Red ignition wire from the SVX ignition relay connector, I can merge that wire into my Legacy ignition relay connector, and everything should work out the way it should. I am pretty sure I can de-pin it, I can see where the prong is clipped, I just need a heavy duty pin or needle or something to pop it out. After this it should be smooth sailing with the ECU harness.

I am also having one hell of a time trying to free the wires from the damn melted rubber crap that attaches to the rubber grommet to hold the wires through the firewall. What I am talking about illustrated below:


I got through the one on the transmission side of the harness. It is really just a pain in the ass and takes a lot of time and a steady hand to avoid cutting any wires.

If anybody has any comments or suggestions, let me know!
Jessekrs123 is offline   Reply With Quote
Old 02-05-2012, 10:33 PM   #23
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

De-pinned the wire I need from the ignition relay connector. Took me an hour and a half just to get this stubborn thing out.


Very difficult stuff. On top of un-clipping it from it's locking tab, you can see the little raised edge which catches on a plastic clip right before you get it out. I definitely DO NOT look forward to de-pinning this connector on my Legacy.

I am pretty determined to separate this harness without any wire cutting whatsoever.

Which brings me to my next challenge. Running the branches of the ignition relay wire through whatever wires are in the way.


As you can see, I'm hung up on a few wires. I will be tracing these wires, de-pinning them, running them through to free my ignition wires, and then re-pinning them just for good measure.

Fun fun fun...
Jessekrs123 is offline   Reply With Quote
Old 02-06-2012, 03:40 AM   #24
100_Percent_Juice
Scooby Specialist
 
Member#: 126042
Join Date: Sep 2006
Chapter/Region: SWIC
Location: Reno, NV
Vehicle:
2004 W Ŕ X
PSM

Default

All those wires just stress me out.
100_Percent_Juice is offline   Reply With Quote
Old 02-06-2012, 07:40 PM   #25
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
2015 BRZ, 93 Legacy,
1984 BRAT

Default

Got the fuel stacks and fuel lines off today.


Fuel stack. Possible area to port to match the gasket and intake port? I'll have to make some measurements to see what is possible.

Intake port.


Engine harness removed.


That's all for now...
Jessekrs123 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
Rare Subaru for Sale: 1993 Subaru Legacy Turbo 5MT MattDell Private Vehicle 'For Sale' Classifieds 14 06-08-2008 04:38 PM
Gauging interest...1993 Subaru Legacy LSi jetfan8178 Tri-State Area Forum 12 09-18-2004 01:59 AM
Gauging interest: 1993 Subaru Legacy turbo engine (EJ22T), FMIC, turbo, etc. marcus12 Private 'For Sale' Classifieds 11 09-04-2004 04:37 PM
1993 Subaru Legacy Turbo (EJ22T) 5 speed, extras mtnboy Private Vehicle 'For Sale' Classifieds 37 04-04-2004 10:14 AM
1993 Subaru Legacy Turbo Sport Sedan FS MugenNeuspeed Legacy Forum 8 02-10-2003 07:59 PM


All times are GMT -4. The time now is 03:41 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.