w/oarctic7g's awd 7g build

[w/oarctic7g]

I landed it today! 98 Eclipse GSX with 109k miles, its smacked hard in the front right. The bad is I need an intercooler, the right suspension is trashed and its auto. The lucky recipient of this transplant will be my $100 94 Galant GS(got it cheap because of bent valves). The leftover parts can then be used on my dirt race car. I have only driven a 7g on the street for 1 hour and I am so envious of you guys getting to drive yours daily. Any wise counsel from ones that have done something similar greatly appreciated. Plan on putting all running gear, suspension, wire harness with ecu and even the leather seats in. I know the driveline needs lengthened and custom exhaust.
http://i1225.photobucket.com/albums/ee397/w-oracer/2G%20%20GSX%20Parts%20car/24776240_4X.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/2G%20%20GSX%20Parts%20car/24776240_9X.jpg

[oakrdrs187]

Sweet!! Document and post.

[galantlvr34]

good luck! and be sure to post pictures.

[Galanttuner10]

for the front suspension, you can just swap over the hub and brakes from the 2g as the rest of the front spindle is the same, but the dual piston front calipers are quite an upgrade and you get the 5 lug. as for the rear, if keeping it auto then just extend the driveshaft to fit and the cutsom exhaust, if converting to 5 speed just swap out the Diff and tranny to a 5 speed, must be 97-99 as the 95 and 96 t cases are different.

so you mention an intercooler, the stock 1g and 2g side mount cant fit anyway so if you are boosting it then go with a small front mount and some 2 inch piping.

and you cant use a 2g ecu in the GS, you need to swap over to a 1g turbo ecu eprom if u can. i think DOHCstunr and eclipsh have a lot of posts about the pinouts in eclipshs build thread

[spencer0791]

lucky!!!!!!

[w/oarctic7g]

I will just stick w/ auto on this one for now. Why cant I use the ecu if I use gsx harness and all? What size fmic should I be looking for and do I just rig up my own mount for it?

[Galanttuner10]

I will just stick w/ auto on this one for now. Why cant I use the ecu if I use gsx harness and all? What size fmic should I be looking for and do I just rig up my own mount for it?

2gs are OBD2 and the 94 and 95 galants are OBD1.5 and 1gs are OBD1 and the harness and setup is most alike between the 1g and 94-95 galant. id use a 1g eprom ecu, they are much easier to find, the 98 and 99 2g ecus are flashable and kind of the link between the 2g eprom and the evo 8 ecu but i see more promise in a 1g eprom ecu

[w/oarctic7g]

Thawing out tonight and dropping rear tomorrow.
http://i1225.photobucket.com/albums/ee397/w-oracer/2g%20donor/IMG_1254.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/2g%20donor/IMG_1253.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/2g%20donor/IMG_1255.jpg

[w/oarctic7g]

Any ideas on where to get the wheel repaired at a fair price?

[Galanttuner10]

update?

[w/oarctic7g]

I stripped the tanks and rear ends out of both cars, cut the 2 rear fuel tank mounts out and exhaust hanger. Fitting the awd tank at the moment. -40 temps tend to slow progress a little.

[keith6110]

bummer on a gsx loss, but awesome to know it will be put into another beast! Keep us up to date sir.

[w/oarctic7g]

Still along way to go but at least the fuel tank and rear-end are taken care of.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/IMG_1296.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/IMG_1297.jpg

[FiascoXL]

sweet, keep it up man.

[raks_22]

wao, nice nice,

[Gudda G]

keep up the good work

[eclipsh]

Looks like there will be a second AWD 7g on the roads soon. The drive shaft, routing an exhaust around it and the wiring are the messy parts. Congrats on your progress.

[w/oarctic7g]

The drive shaft, routing an exhaust around it and the wiring are the messy parts. Congrats on your progress.

Thanks for the warning. You made it seem so simple but it does take some patience and a lot of time especially those hiding, stinking subframe bolts.
FYI: it looks like most of the suspension parts and brake components are interchangeable.

[eclipsh]

Yeah, the rear subframe stuff does take time but it isn't too hard. The suspension parts are identical but the rear knuckles and hubs are different for the AWD cars. I believe the spring rates and shock lengths are different too.

[w/oarctic7g]

I wonder what the difference is in the knuckle, it sure looks like I could slip an axle through and the hub looks like the same bolt pattern. Maybe its just the GS though.

[Galanttuner10]

the control arms are the same. swap to the AWD springs(not only shorter but stiffer than the FWD) AWD bearing/hub will bolt right into the 7G knuckle as it is the same bolt design.

good luck and keep us updated

[w/oarctic7g]

Motor is in finally.
http://i1225.photobucket.com/albums/ee397/w-oracer/IMG_1483.jpg

[gotclutch87]

nice progress i am awaiting my swap as of now till i can do more research but im not going awd just fwd 4g63t

[Galanttuner10]

nice progress i am awaiting my swap as of now till i can do more research but im not going awd just fwd 4g63t

instead of swapping the motor why not turbo the 4g64?

[djhah]

That turbo looks like a garret t-25 i have one waiting on me to collect more parts i would perfer bigger but it was very cheap.

[galantlvr34]

nice progress i am awaiting my swap as of now till i can do more research but im not going awd just fwd 4g63t

If you want a dohc why dont you do a head swap and turbo it,it would be easier then swapping the whole motor.The 4g64 bottom end has more displacement then the 4g63 bottom end.

[Galanttuner10]

That turbo looks like a garret t-25 i have one waiting on me to collect more parts i would perfer bigger but it was very cheap.

you are going to hate the t25. get a 14b at least. 8 psi on a 14b is about the same as 18 psi on a t25.

[djhah]

you are going to hate the t25. get a 14b at least. 8 psi on a 14b is about the same as 18 psi on a t25.

i have tried to sell it on craigslist to get money of a bigger one and the only ppl that hit up on it fell though : ( that was what i wanted to do i mainly got it for the 2g mani that was on it, like i said i got them at a good price.

[w/oarctic7g]

I just assumed it was stock there is a long series of #s but no 14 or 25. How can I tell for sure?

[Galanttuner10]

2g mani is fine. id sell the t25 and get a blown 14b or 16g that has not had the wheels hit the housing for like 30-50 bucks then get a 40 dollar rebuild kit and for 70-100 bucks you have a much better turbo.

and also arctic i want to see this thing in action, even just cruising around. make me finally see some footage to make the awd swap seem even more worth it

[djhah]

2g mani is fine. id sell the t25 and get a blown 14b or 16g that has not had the wheels hit the housing for like 30-50 bucks then get a 40 dollar rebuild kit and for 70-100 bucks you have a much better turbo.

and also arctic i want to see this thing in action, even just cruising around. make me finally see some footage to make the awd swap seem even more worth it

were would i find a blown turbo? just curious

[Galanttuner10]

ebay, local dsm forums etc. craigslist. just firmiliarize yourself with what they all look like. need anything else PM me so we dont clutter this thread.

[w/oarctic7g]

Having wiring headaches, I have been studying this stuff for days. I wanted to use the 2g engine harness and ecu then wire it in at the underhood 12 pin connector near fuse block. Thought it was a great idea when I was carefully installing the uncut gsx harness but appears to be too many differences. Should I give up on that idea?

[Galanttuner10]

id give up on that idea and rewire the galant harness for the new sensors.

[w/oarctic7g]

id give up on that idea and rewire the galant harness for the new sensors.

Using gs ecu? part of the problem there is the auto trans I'm using from the gsx.

[eclipsh]

I did a rewire of the harness for my setup. It is a pain in the ass. The 2g ECU has to be easier though since it is more similar to the 7g setup.

[Stewi]

the control arms are the same. swap to the AWD springs(not only shorter but stiffer than the FWD) AWD bearing/hub will bolt right into the 7G knuckle as it is the same bolt design.

good luck and keep us updated

Chris how sure are you about the AWD bearing/hub bolting right up? The reason I ask is because the word over on dsmtuners is the AWD hub wont bolt into a FWD DSM rear knuckle. The FWD DSM rear knuckle, 7g and 8g rear knuckle are all the same part#. I have never personally tried it, but it looks like the rear hub in a 7g/8g is a smaller diameter and a different bolt spacing where the hub assembly bolts up. I might be wrong though.

[eclipsh]

The rear knuckles are definitely different. You cannot use the FWD rear knuckles. The fronts are the same.

[Galanttuner10]

he was talking about the fronts so my response was for the front. rear is different. i have 2g awd front everything in my car with stock galant shocks and springs right now. and small single piston brakes :(

[Galanttuner10]

the rear knuckles are different part numbers but ASA doesnt show any difference in design at all. id say bolt on the 5 lug to the stock rear knuckle and put in the awd suspension. out stock knuckle just has a stubby shaft but after removing that and putting in an awd rear hub and bearing i dont see why it wouldnt work. just like how the 2g turbo and our cars have different part numbers for the fuel filter but are the exact same and even our main motor mounts and different numbers but using a 2g mount or prothane insert works just fine.

[Galanttuner10]

found the only difference i could so far, the diameter of where the hub goes is smaller on the FWD as no axle has to go throught it. other than that they are the same

[eclipsh]

GT10, the rears won't work. There are more differences. I looked at doing it and when they were side by side I immediately saw it wasn't going to happen. I don't remember the details but I think the bolt pattern for the bearing was different amongst other things.

[Galanttuner10]

the awd rear knuckle has a different toe arm design and a bigger hole for the bearing as there is an axle on the awds, so even you they look the same we need the rear awd ones and cant use our stock rear ones. that is what i found in my search.

[Blue Ice]

As for your wiring issues, I would suggest that since you have a GS harness, i would replace all of your obd1 connectors with the obd2. You can do this one of two ways.

1. remove all of the pins from the obd2 connector then just put the pins one by one from the ob1, or
2. One by one remove and replace the pins 1 pin location at a time. This way i feel might be more certain of which pin goes where in the transplant. the first connector deals primarily with the engine, the middle two connectors deal with peripherals, and the last i think has most sensors.

I wrote a tutorial on how to get the pins out of the connectors, instead of cutting and splicing each individual wire.
https://www.thegalantcenter.org/showthread.php?t=25051

Now a few issues come to mind.

1. Are the firing sequences for the spark plug and the injectors the same going from GS to 2g? My suggestion would be to follow the pin placement diagram for the 2g ecu when relocating the pins. If you have both pin diagrams (94 gs, and 2g eclipse) and if there is a difference, it should be in the injector locations and the spark plug firing locations.

2. You will probably need to replace the CAS (cam angle sensor) wires of the GS harness with the CAS wires from the 2g. You're 2g harness will be your donor for various parts you'll need.


I think if you follow the pin out diagram of a 2g ecu, and install the CAS for the 2g you will not have any problems using your 2g ecu and your harness will connect to everything else in the GS

[gotclutch87]

do you have to use a 2g? i am wanting to do a 5spd 4g63t swap on my 95 es and i have some 1g turbo parts laying around like 6 bolt 4g63t harness axles ecu ect. im only wanting to go fwd..

[Galanttuner10]

2g is direct bolt up pretty much as we share almost the same exact chassis, you can put in the 63, but need to mod the water pump for the 2g motor mount like every other dsm does and if its a fwd 1g tranny i think there is a tutorial on how to run it around here, but out trannies bolt up to it, only the flywheel needs to change.

[mysticj]

Have you open up the GS ecu? If its an Eprom you can use the Evo I-III rom file. Or locate an Evo I-III ECU.

Or...get a 2G boomslang wire harness to use the 2G ECU. Three of the four plugs fit. you will just need to rewire the boomslang. Mko did a write up on it!!!

I got you cover if you need to log the GS/Evo I-III ECU


You guys make some things so difficult.

[w/oarctic7g]

As for your wiring issues, I would suggest that since you have a GS harness, i would replace all of your obd1 connectors with the obd2. You can do this one of two ways

I think if you follow the pin out diagram of a 2g ecu, and install the CAS for the 2g you will not have any problems using your 2g ecu and your harness will connect to everything else in the GS


hmm Interesting idea! The problem with that may be alternator, fuel and auto trans. I will study it more this weekend.

[Blue Ice]

you shouldn't have any problems with the alt, fuel. As far as the Trans, are you going 5spd or staying auto?

I'm not familiar with boomslang, so i wouldn't have know about it, plus my swap was about 3 years ago and there was only one person that could help me so I had to forge my own way, and that's what i did. There's a lot of ways to skin a cat.... choose yours.

[w/oarctic7g]

Auto for now.

[Blue Ice]

If you are thinking of going 5 spd, it'd be easier to drill for the clutch pedals and run shifter cables while the engine is out. Either way keep us updated.

[troubled4g64t]

if your interested I have 2 2nd gen sidemounts 50 plus shipping let me know

[w/oarctic7g]

Turned it over today no spark. Still hung up on wiring I am now using 2g engine harness, 7g gs starter harness and body harness. I will get there eventually.

[mko]

so the 2g harness plugged in the galant's dash harness?

[w/oarctic7g]

There were too many differences for direct plug in. I ran the three- and + to ecu.

[w/oarctic7g]

Making a little progress and hope to finish wiring this weekend. I took out the 2g engine harness, it was a dumb mistake to try and use it in the first place. I have most of the engine bay stuff wired in and the ecu is getting closer. I added wires for the wastegate, mdp, fpr and 2 wires for alt as I will be using the 2g alternator. Still need to do resistor pack/injector wiring. Your input is appreciated.

[phizzalot]

Nice work on the progress W/oarctic. Iam sure you will get the wiring figured out, I had a bit of a headache with my swap and cas wiring but is ok now.

[w/oarctic7g]

by by to the two wire alternator,
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/7ggalantawd010-1.jpg
coil pack, mdp, fuel reg and injectors all soldered and heat shrinked
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/7ggalantawd009-1.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/7ggalantawd011-1.jpg
ecu connectors done and ready, only had to move pins on a few, add another ecu connector and run 4 new wires to engine bay.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/7ggalantawd008-1.jpg
I learned the hard way as there are differences in the pins and how they fit in the connectors between the obd1 and 2 connectors. I guess if I forced or modified the pins it could have worked.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/7ggalantawd001-1.jpg

Still have to setup ic, driveline and exhaust but I want to try to start it tomorrow anyway.

[w/oarctic7g]

I got it started today and it actually idles, it is pig rich though. Will try to figure it out after the black mist dissipates.

[finald8ta]

congrats

[phizzalot]

Very Nice, looking forward to the other modification's and how that goes..

[johnygezony]

Off Topic, But holy shit look at that Aveo in the background in post 1....

[wetamup2k3g]

Just read the whole thread, congrats on getting it started, that means you're almost home! In for updates!

[w/oarctic7g]

Just trimmed a little here
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/012.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/013.jpg
and intercooler fits nicely.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/019.jpg
Installed maft gen2.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/021.jpg
Wiring maft in was pretty quick and easy only took an hour or so. Configuring it will be a bit more of head scratcher. I wonder if i can set just the gm maf info and then leave the rest alone for the time being?

[w/oarctic7g]

Bumper reinforcement mounted after a little cutting and grinding. Tried to get the driveshaft lengthened and unfortunately they said they couldn't do it. Not sure what to do now??
http://i1225.photobucket.com/albums/ee397/w-oracer/001.jpg

[eclipsh]

Just ship the section you need lengthened to a shop that will do it. The shop I went to was just a local driveshaft shop, nothing special.

[w/oarctic7g]

I didn't want to ship out because: 1. Murphys law 2. my impatience 3. shipping companies treat Alaska as another country, freight is expensive.
My machine shop friend got it done though, here are the ends of middle section after the tube was removed.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/001.jpg
Bought a new section of tube from the shop that said they couldn't lengthen it
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/002.jpg
Here it is mounted in place. The center section lengthened 4.9 inches which is the difference between the 2g and 7g wheelbase.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/004.jpg

[Armandotech]

Does the i/c piping fits without problem or is it custom?

[w/oarctic7g]

Not sure what you mean by custom, I believe each install is slightly different than the next guys as there are so many intercooler and turbo options. I was determined to run the upper as close as possible through the factory hole in the rad. support. It took a lot of patience/time fitting and refitting, ended up using a expo radiator and offset it a few inches toward the drivers side to clear upper intercooler piping.

[Armandotech]

Was asking because that i/c comes as a kit for 2g dsm's and wanted to know if you used that piping or if you made your own

[w/oarctic7g]

Gotcha! I got the kit slightly used for about 1/2 price so not sure what it came with new and I doubt he gave me every piece. Didn't need to buy anything additional for the upper except a clamp or two, the lower parts purchased were a straight 2' of pipe cut to proper length reducer coupling and u coupling because still using stock 2g turbo.

[phizzalot]

Looks good, pretty nice watching this 7g come along.

[Armandotech]

Gotcha! I got the kit slightly used for about 1/2 price so not sure what it came with new and I doubt he gave me every piece. Didn't need to buy anything additional for the upper except a clamp or two, the lower parts purchased were a straight 2' of pipe cut to proper length reducer coupling and u coupling because still using stock 2g turbo.

Perfect just what I needed to know thanks :) I have a 94 galant gs as well that i'm about to turbo and even tho' I have a lot of experience with dsm's the galant world is new to me. Hope you finish the car soon.

[w/oarctic7g]

Finished wiring up the budget tranny shifter and took it for it's first drive today.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/003.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/002-1.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/005.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/006.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/004-1.jpg

[mko]

Thats awesome man. I like the stance. Its coming out very nicely.

Do you have any exhaust on the car?

[w/oarctic7g]

Nothing special for exhaust just stock gsx front section and then a few feet of straight tube. Surprisingly not too loud but eventually will go 2.5 or 3" all the way.

[phizzalot]

Very cool, Congratgs, the auto gsx trans can be pretty strong from what I've seen on tuners. Looks Like your going to have some fun with that in the snow :)

[Armandotech]

Happen to have any pics of the engine bay? Just wanted to see the piping :) congrats on getting it running

[w/oarctic7g]

Happen to have any pics of the engine bay? Just wanted to see the piping :) congrats on getting it running
Ordering an exhaust kit, considering going with 3" downpipe and 2.5 the rest of the way or maybe I should just go with 2.5 for all of it. opinions? It is just a t25 for now but eventually will put the holset hc1 off my cummins in place.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/001-2.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/002-2.jpg
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/003-1.jpg

[eclipsh]

I've seriously been considering downsizing to 2.5" just for noise issues. I just put a Magnaflow 3" in/out muffler on the car and it is still loud enough on the highway that I have to turn the stereo up to hear it well and then back down at stop lights so I'm not getting blasted. That is with two resonators inline before the muffler. Of course some of that is also just road noise from my wide tires and suspension mods but still...

Also, don't go big to small on exhaust pipe or you'll hurt your exhaust flow (fluids stuff I don't want to go into this morning but trust me, I'm an engineer). Better to stay uniform or go bigger as you go back.

Also, I've been waiting to use that trust me line, so thanks for the chance ;)

[w/oarctic7g]

Think I should trade? They guy said it is a 20g and it was only run for 1 week but has no paperwork. He wants to put his back to stock and will trade me straight across manifold, turbo and wastegate. It has evo3 stamped on the housing so I was thinking it is at least a 16g.
http://i1225.photobucket.com/albums/ee397/w-oracer/image.jpeg (http://s1225.photobucket.com/user/w-oracer/media/image.jpeg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/8d8802463c.jpg (http://s1225.photobucket.com/user/w-oracer/media/8d8802463c.jpg.html)

[w/oarctic7g]

Sorry guys its the wrong brand but boy does it move and its a blast. Finally finished it, got some bugs worked out and last night got 2 wins and a third place finish in a class of v8 cars. Going to prep another car but not sure if I will retire my 7g or drop yet another motor in. My current options are same or another 7g(have several parts cars), 2g gst(no turbo allowed), 1g or tiburon. Suggestions?
http://i1225.photobucket.com/albums/ee397/w-oracer/Maxima%20dirt%20car/MaximaRacecar001.jpg (http://s1225.photobucket.com/user/w-oracer/media/Maxima%20dirt%20car/MaximaRacecar001.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/Maxima%20dirt%20car/MaximaRacecar002.jpg (http://s1225.photobucket.com/user/w-oracer/media/Maxima%20dirt%20car/MaximaRacecar002.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/Maxima%20dirt%20car/MaximaRacecar004.jpg (http://s1225.photobucket.com/user/w-oracer/media/Maxima%20dirt%20car/MaximaRacecar004.jpg.html)

[master_visionary]

do yu win any money at those events

[master_visionary]

I wanna see some snow fun video and I too looove the stance ...no wait .. a dirt track win video

[w/oarctic7g]

do yu win any money at those events
A little at the end of season but not much.

Back to the street car:
I just picked up a Megan Racing stainless turbo back 3" exhaust barely used from a gsx. The downpipe fits like a glove but the rest of it is not looking good at all even the muffler to fit half way decent will be at a pretty abrupt angle side to side. The alternative is to put it in like the original and have some new pipe bent to fit which kind of defeats the smooth mandrel bends. hmmm decisions....

[w/oarctic7g]

Exhaust turned out pretty decent also recently installed innovate wideband and egt gauges and made my own dash mount still need to hook up engine side of egt. I have only driven it from the shop to home and still need to figure why afr jumps to 20 and cuts out when I rev it up.
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/013640x480.jpg (http://s1225.photobucket.com/user/w-oracer/media/7g%20GS-X/013640x480.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/014640x480.jpg (http://s1225.photobucket.com/user/w-oracer/media/7g%20GS-X/014640x480.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/015640x480.jpg (http://s1225.photobucket.com/user/w-oracer/media/7g%20GS-X/015640x480.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/010480x640.jpg (http://s1225.photobucket.com/user/w-oracer/media/7g%20GS-X/010480x640.jpg.html)
http://i1225.photobucket.com/albums/ee397/w-oracer/7g%20GS-X/002-3.jpg (http://s1225.photobucket.com/user/w-oracer/media/7g%20GS-X/002-3.jpg.html)

[Exhaust power]

Looking good i see its nice to have your own lift. I just had a shop put on a muffler for my prelude i can say i told my self they would make me hate my car more.

[8thLS6]

Like how straight the piping is on the exhaust with minimal bends