7g AWD Swap possible?

[Lasthope05]

I've been browsing threw the forums and couldn't find anything about doing a 7g AWD conversion or any information about who's done it. I am thinking about starting a new project. I want to start my own awd mitsu swap and I think a 7g awd project would be perfect. Now when a galant came into the shop I wasnt around but while on the lift my friend said the complete rear subframe was looked exactly like a 2g spyder rear subframe. Im going by his words because has a spyder himself that we also converted.

He as all the print outs and but I havent really had a chance to look it over and cross reference the parts over to each other. But I'm thinking this might be a pretty solid idea I might be trying out.

Also have any of you used the 1g harness instead of the 2g? Reasons I am asking is because I already have a fully built 1g awd dsm built for the 1/4 and I'm tuning via 1g dsmlink. Im pretty sure I'll be rewiring things to make everything work.

Now I'm not going to build this as another drag car but hopefully as a daily driver this time around which I regretted not doing to my 1g.

[Sleepervr-4]

Don't have time to list everything but in short it can be done. Search and you will find answers :smt002

[silver_beast98]

jumpin on this one quick... if you want to do it bad enough, it's possible... i know that the 7g and the 2g are almost identical except for i think a 3" longer wheelbase... get the custom driveshaft and you should be just about good to go on the same as you would need to for a 2g. You say you have already had experience on an awd conversion. that alone gives you more knowledge on this particular subject than 99% of the others on this forum. i say if you want to do it and can afford it all and your car being down for a little while, please do not let anyone discourage you out of it. The most common reason for not trying this, is that nobody has seen it and it's probably a little less practical than just buying a gsx, but for many car enthusiasts practicality went out the window long ago anyways... If you would rather buy a gsx for an awd, thats great. But if you want a car that would be truly one of a kind, go for it.

And if you do it, take lots of pictures and maybe even write a tutorial on it. I know that many of the same ppl who would think you are crazy for attempting it would love to see it happen...

[laxinwarrior]

Yes it can be done. Not sure if anyone has used a 1g since the 2g is very similar to the 7g and makes for less custom work but i'm sure it can be done. Good luck and let us know what all you find out.

[seth98esT]

2g GSX subframe will bolt up, just need to remove the stock subframe bolts(cut two holes) and use the GSX subframe bolts. I would use the stock rear driveshaft, weld in a carrier bearing, then see how the front driveshaft from a 6gvr4 lines up. If that doesnt work, you would just need a custom length front driveshaft. The 2g AWD trans will bolt into a 7g no problem.

The only real problem is the driveshaft tunnel(exhaust tunnel I guess) might not be big enough to accomodate both the driveshaft and the exhaust. So you could try stock exhaust with an exhaust cutout or stock exhaust with an o2 dump. If that all fails, you would just have to cut out the stock exhaust tunnel and make it wider.

It can be done, it will be done, its just a matter of time and money. Check out the 2g GSt -> GSX tutorial:

http://www.automotivearticles.com/AWD_Conversion.shtml

[Lasthope05]

Ill be using the 2g awd rear subframe for sure not the 1g. I was just wondering if anybody used the 1g engine harness as opposed to the 2g since i already have a 1g dsmlink. I would rather not sell my d-link and buy a 2g one.

Another note is I like the 7g look. And I dont have one yet. Just looking for information before I go out and buy one. This will be the motor going in it/when I do.

http://i83.photobucket.com/albums/j296/lasthope05/CIMG0746.gif
http://i83.photobucket.com/albums/j296/lasthope05/CIMG0744.gif

[seth98esT]

Pretty beast. You can use either harness, I personally would mod a 7g harness so I wouldnt have to rewire the fuse box in the engine bay. A 94-95 harness will be similar to a 1g harness at the ECU plugs(3 plugs) and also will already be OBDI. A 96-98 harness will be like a 2g harness as it has 4 ECU plugs and is already OBDII. So technically it would be easier to start with a 94-95 if you want to use a 1g ECU and OBDI.

[Lasthope05]

Thanks for the heads up for the info about the harnesses. I'm going to research this topic some more and come back when I actually get started. I already found a nice 7g for $600 with a blown trans and between me and my friends we have enough dsm parts to build a full running car. So this wouldnt cost me much and I'll be doing all the fabrication myself which shouldn't be much since the AWD Eclipse Spyder swap we did was cake.

[seth98esT]

Do it, take lots of pictures ;)

Where are you from?

[laxinwarrior]

Do it, take lots of pictures ;)

Where are you from?

x2 :twisted:

[Lasthope05]

Im from Philadelphia ,pa. I just need to get some funds together and buy the car before I can get started.

Laxinwarrior your sn looks familiar.. you on Tristate?

[fuel]

get ahold of triggermauve on here, he may be able to import you a 7G VR-4 driveshaft. If you can get ahold of an Evo I/II/III driveshaft I'm pretty sure it's similar size too.

[laxinwarrior]

Im from Philadelphia ,pa. I just need to get some funds together and buy the car before I can get started.

Laxinwarrior your sn looks familiar.. you on Tristate?

Yeah man ... where are you in philly?

[DOHCstunr]

i run the 1g ecu, and ds-map speed density engine management. i adapted my 94 GS harness to accept the 1g ecu.
you literally have to label the wires and cut the connectors off the 7 harness. then do the same fr the 1g dsm harness(make sure you cut the connectors off with at least 6-10 inches of pigtail)
then match everything up, and solder/heatshrink all 72 wires.

pain in the ass

[Lasthope05]

Well actually, are the connectors at all the same as a bewteen the 1g dsm and the 94-95? because I am actually using a galant eprom ecu(6g? or 7g?) with my d-link. If not then its not going to be a problem. Just wiring in a tach signal and knock signal isnt that bad either. The drive shaft woundn't be that hard to do. I can use the 2g's and extend with a spacer block at the rear of the shaft between the pumpkin. That way nothing should be off balance.

DOHCstunr,
Hows ds-maps running for you? Are you burning chips or running the ostrich emulator? I looked into dsmap's speed density setup a while back but it looked pretty confusing with the 255 points of adjustment that you have to manually change. Looking at it reminded me of the time I used the EMS in my car and it was a complete headache(its my paper weight now) :mrgreen:

Laxinwarrior,
Im from north philly right next to the northeast section. A few blocks away from the Boulevard actually.

[WarmAndSCSI]

Wow, I'm excited to see this come together. 8)

[seth98esT]

Im not sure if you can run DsmLink off a Galant eprom ECU. Its never been done though, so nobody knows except for maybe Jeff-o at DSMChips. The 96-98 ECU connectors are the exact same as the 2g ECU connectors. I would assume the 94/95 connectors are the same as the 1g.

[Lasthope05]

Well I am currently using a galant eprom ecu with my dlink and its been working perfectly fine :mrgreen: . It must be the 6g ecu because it plugs right into my 1g harness.

[seth98esT]

I would assume it is a 6g VR4 ECU as well. If you post up the part number on the side casing, we can tell.

[DOHCstunr]

Im not sure if you can run DsmLink off a Galant eprom ECU. Its never been done though, so nobody knows except for maybe Jeff-o at DSMChips. The 96-98 ECU connectors are the exact same as the 2g ECU connectors. I would assume the 94/95 connectors are the same as the 1g.

the conectors are not the same

totally different size/ shape.

thats why i literally had to cut 140 wires, and solder 72

[seth98esT]

Well the 7ga is gay then!

[DOHCstunr]

its so gay it OWNS you

[Lasthope05]

Hey did you DOHCstunr remember what pins you need to swap/splice? I am working on trying to get the wiring situated and so far matching up the pins I only have about maybe a little over 25 pins that are matching up and for this car I am trying to have the luxury of having all my accessories.

http://www.vfaq.com/mods/ecu-harness-1G.html (1g dsm harness)
https://www.thegalantcenter.org/viewtopic.php?t=61875&highlight=wiring (7g 94-95 harness)

[Lasthope05]

Ok so I currently have most of the ecu pinout wiring figured out. Now there are still a few that are missing and need help with its completion.

1. Oxygen Sensor - Pin 4 (Should I be using Pin 35 or 56?)
2. MPI Control Relay - Pin 56, 63 and 66 (There are 3 of them on a 1g dsm and only 1(pin38) on a 7g so do I connect the 3 comming from the dsm ecu to pin 38 from the 7g?)
3. ABS Control Unit
4. Fuel Pressure Control Valve - Pin 57 (What pin on the 7ga harness?)
5. Ign Pulse sigal/Tach - Pin 109 (What pin on the 7ga harness?)
6. MAF Sensor power supply 5v - Pin 23 (What pin on the 7ga harness?)
7. Sensors Ground -5v - Pin 17 and 24 (What pin on the 7g harness has a -5v ground for MAF)


MISC:
Knock Sensor - Pin 9 (will be wired directly to ECU)
Power Transistor 1/4 and 2/3 - Pin 54 and 55 (Wired from 1g dsm coil pack?)
TDC/CAS Sensor - Pin 21 and 22 (Connected from 1g CAS)

Here is the link to the file.
http://www.mediafire.com/?7erlzllyjdn

[DOHCstunr]

its not even an option to swap/ move pins.

[Lasthope05]

No I will be cutting the 1g harness and soldering them to the 7g harness but I still need to know the pinouts of a few that dont already have. I couldn't find much information about using the 1g ecu off this board. All I found was everybody was jumping on the 2g ecu because its "better" for tuning :roll: ...

[DOHCstunr]

i don't think the 2g ecu is better for tuning.

thats why i went obd1

its nice to be able to read knock, and duty cycle.

basically, label everything perfectly. and if the 1g ecu doesn't use it. then don't worry about it.


the only thing you'll have to do is add the wires for the knock sensor, and maybe a couple other simple things. and then you'll have to get a temperature activated switch, install it in the thermostat housing, and run a ground wire from the radiator fan high relay. so that when the probe gets to the switching temperature. it closes the circuit and triggers the fan relay to run until the switch is cooled off.

thats what i did, its simple, and it works flawlessly

[gaylantvr4]

How did you wire up the fan controle? The 7g runs the rad fans through a relay. If anyone is interested i can post a pinout to run a 2g ecu of a gs harness.

[kolio]

please do so or pm me it, i'm going through it now

[gaylantvr4]

http://members.cox.net/gaylantvr4/galant%20ecu%20excel.xls

[gaylantvr4]

if you seen any out of place let me know

[bignasty]

http://www.machv.com/ecupaha.html

would this be better then cutting a harness?

[laxinwarrior]

No that won't do anything for you. The 7g pinouts are different than the 2g pinouts and you need to change the pins in order to change ecu's. You might be able to get boomslang or someone to make you a custom conversion harness but it won't be worth the effort and price to do that.