90' GSX to 91' TSI AWD

[XiKeiyaZI]

Alright.. so as I've slowly come to the thought that my GSX has a bent frame (previous owner smacked into a deer) I've began getting my 91' TSI ready to have everything swapped over.

I personally enjoy the Talon a bit more... due to the color contrast of white and black. Also the Harness isn't molested where-as my 90' harness has at least 4 cuts on every wire. So I'm going to be converting my 90' ECU to run with the 91' Harness which is only a 2 wire swap difference. But below are a list of my questions/concerns.

KEEP IN MIND : I have never owned a Turbo'd car. Needless to say, I've never owned an AWD. I picked up both of these cars for less than $800.

1 : The 90' GSX has a LSD. The orange sticker in the door claims anyway. This can be swapped to the 91' as it doesn't have the same?
2 : I'm rebuilding the engine in the 90' GSX. It runs good. I've driven the GSX. It just had shit for piston rings. Dropping the engine into the 91' should just be a hook and go correct?
3 : The TSI has the giant ABS system positioned near the battery. Will the 90' ECU effect this? Will this effect the engine installment in any way?
4 : ALL interior parts should be the same? I noticed that the center consol in the TSI is gone.. o_o

The GSX was going to be the one I drove while the TSI was going to be my parts car. Now due to the frame (possibly bent) and the condition of the wiring, and looks of the Talon... the GSX will be the parts car and the TSI will be my driver. I'll also be swapping out Dashes. Another plus is that the GSX winsheild has a massive crack down the center and the TSI does not. >_>

Can I get any backing on this? And is there anything I should keep in mind besides the above asked questions. Thanks.

Edit : Erm... Also... not that anyone should condone this... but let's just say hypothetically.. that the seller cannot find the title to the TSI...and to just avoid the entire issue......could I just swap out the VIN numbers and the Eagle Accents with the GSX accents? o_o It'd basically be an Eclipse then, correct? HYPOTHETICALLY.

 

[TSi Kid]

is the rear diff a 3 bolt or 4 bolt? Keep the four bolt in the car you want
yeah the engines are the same 90-92(earlier half) have the same motors so its an easy swap
does the gsx not have abs?
yeah interior wise everything should be the same my friends 90 gsx has the same center consol as me

hahahah wow umm idk about that man
hypothetically yes? legally no

 

[XiKeiyaZI]

No, the GSX does not have ABS. From what I understand... in the early models either came with ABS or LSD o_o Correct me if I'm wrong.

I haven't crawled under to confirm the 3-4 bolt setup. Not entirely sure I know how to identify it in the first place.

Is there a sure-fire way to tell if the frame is beyond usable? The ONLY thing that worries me is that the GSX passenger rear tire is slanted inwards at the top a little bit... Like... we jacked it up at a weird angle or something. =/ But I've never seen a vehicle do that. It could just be bad alignment/suspension? I mean... they hit the deer in the front.. not the rear. Everything else seems in line and when I drove it, it didn't pull to the side or anything.

But yeah... I may just convert everything over. -Shrug- who knows.

 

[rlacasse1]

Hypothetically, if one does not get caught the one did nothing illegal. Haha

 

[XiKeiyaZI]

Hypothetically, if one does not get caught the one did nothing illegal. Haha

As I said, not condoning or even saying I'm GOING to do it. Just to clarify.

But ... seeing as how these cars look just alike... nothing on it is going to even say Talon....o.o Hell, they are the same, just a different badge. I live in NE Arkansas... When I get a car tagged, I hand them the title, they stamp it, hand me tags, and that's all. No tests. No Inspections. Nothing.

Plus, aren't there tons of people who have converted Eclipses Into Talons and Vice-Versa?

 

[13b Bro]

Depending on build date, the 90 has a different throttle body, ECU, and gauge cluster than the 91. IIRC.

As for the bent frame, I would first check the front suspension for straightness. It may be easier to swap suspensions to see if that fixes your problem.

 

[turbo_lag92]

you wouldnt have to do swap badges and everything just take the dash and put it in. when it comes time to sell it let them no what ya did or have the p.o of the talon go file for a lost title. as for the swap it should be easy your just have to switch a few minor things on the 90 motor. such as the cam angle, and a few other minor things. make sure you use the trans,driveshaft, rear end setup thats in the talon.

 

[XiKeiyaZI]

you wouldnt have to do swap badges and everything just take the dash and put it in. when it comes time to sell it let them no what ya did or have the p.o of the talon go file for a lost title. as for the swap it should be easy your just have to switch a few minor things on the 90 motor. such as the cam angle, and a few other minor things. make sure you use the trans,driveshaft, rear end setup thats in the talon.

o_o how would swapping the dash allow me to tag the thing?

 

[turbo_lag92]

how strict are your registration laws. all i ever have to do is just show them the title of the "car" iam registering. they dont check the car out at all

 

[ramsack]

if the seller didn't have the title in his name then they had no legal right to sell you the car. i would never give money for a car without getting the title in hand. a dick seller could just say the cars were stolen, or worse yet, the seller of the seller could do that and create a big mess. leaving you with no cars and blown money.

not condoning it but you could put the dash or simply swap the vin tag from the gsx to the talon. i got pulled over in my eclipse but i put my talon plates on it and the cop asked me why the car said mitsubishi and i just said they are the same car and i swapped body parts.

1. if the 90 rear is a 4-bolt lsd and the 91 is a 3-bolt, then i would just swap the whole subframe.
2. dropping a 90 engine in a 91 will cause problems such as the tps, iac, and cas connect differently.
3. i would just take the front brake lines and proportioning valve from the 90 and throw it in the 91 and remove as much as the abs system you can. not until the 92s did mitsubishi make abs and lsd work nicely together.
4. interior parts are identical except the middle piece on the steering wheel. one says mitsu, one says eagle. along those lines.

 

[XiKeiyaZI]

how strict are your registration laws. all i ever have to do is just show them the title of the "car" iam registering. they dont check the car out at all

Same. They NEVER look at the car. Hell, I could drive the car up there with no tags and Tag it. So what I was figuring is that.....if needed I could just swap everything around... and it'd basically be like I'm just swapping frames.. without actually swapping frames... So I'd still HAVE a the Talon and the Eclipse.. o__o;

if the seller didn't have the title in his name then they had no legal right to sell you the car. i would never give money for a car without getting the title in hand. a dick seller could just say the cars were stolen, or worse yet, the seller of the seller could do that and create a big mess. leaving you with no cars and blown money.

not condoning it but you could put the dash or simply swap the vin tag from the gsx to the talon. i got pulled over in my eclipse but i put my talon plates on it and the cop asked me why the car said mitsubishi and i just said they are the same car and i swapped body parts.

1. if the 90 rear is a 4-bolt lsd and the 91 is a 3-bolt, then i would just swap the whole subframe.
2. dropping a 90 engine in a 91 will cause problems such as the tps, iac, and cas connect differently.
3. i would just take the front brake lines and proportioning valve from the 90 and throw it in the 91 and remove as much as the abs system you can. not until the 92s did mitsubishi make abs and lsd work nicely together.
4. interior parts are identical except the middle piece on the steering wheel. one says mitsu, one says eagle. along those lines.

The thing on the title is... the guy I bought it from is a good honest guy... and he bought it from someone after they built it up and f-d up the crank. He grew up with the guy. Well, the guy is a total lazy-ass and will not go get a title.. and so he was GOING to part out the car. Well I offered the buy the entire thing as a parts car to get my GSX up and going good. It had been with my friend for a few months before I got it. If he was all " I want the car " Then he'd get the eclipse because it'd, in all actual means, be a Talon. Per exterior and interior.

I'm dropping in the 90 Engine... using the 91 harness which is a two wire difference, with the 90 ECU as I don't have the 91 ECU. The 91 does not have an LSD... o_o so should I still worry about eliminating the ABS?

 

[turbo_lag92]

why not just change the few things on the 90 motor to a 91 motor, so much easier in the long run

 

[ramsack]

yeah you're going to have to either rewire or get a few new things.

1. coil
2. power transistor
3. tps
4. iac
5. cas

if it was me i would just get the 91 parts and not hack my harness.

 

[XiKeiyaZI]

yeah you're going to have to either rewire or get a few new things.

1. coil
2. power transistor
3. tps
4. iac
5. cas

if it was me i would just get the 91 parts and not hack my harness.

Yeah, well.. I really don't feel like spending $300 when I can neatly rewire what's needed? Considering I have both harness' and diagrams.. it shouldn't be hard.

Why pay for something more when you have everything else there that you need?

 

[ramsack]

but you can also sell those parts, for probably more than you pay for 91 stuff. also the power trans/coil, if you rewire that, you may need to put the 90 cluster in. i'm not positive but i think the tach signal is different.

 

[XiKeiyaZI]

but you can also sell those parts, for probably more than you pay for 91 stuff. also the power trans/coil, if you rewire that, you may need to put the 90 cluster in. i'm not positive but i think the tach signal is different.

Man, it's fine. I have 2 complete cars. The 90GSX and the 91TSI... o_o I can use whatever I want.. it's just the TSI had a broken Axel, the crank was installed wrong, and I sold the head...o.o

So yeah. Whatever is needed, I have... I believe.. o_o

 

[turbo_lag92]

but you can also sell those parts, for probably more than you pay for 91 stuff. also the power trans/coil, if you rewire that, you may need to put the 90 cluster in. i'm not positive but i think the tach signal is different.

+1 on the tach signal

 

[JFZERO ECLIPSE]

is the rear diff a 3 bolt or 4 bolt? Keep the four bolt in the car you want
yeah the engines are the same 90-92(earlier half) have the same motors so its an easy swap

Odds of him having a 4-bolt in the car...slim to none....
The engines are far from the same...

make sure you use the trans,driveshaft, rear end setup thats in the talon.

As turbo-lag92 stated....use the complete drivetrain from 1 car....somewhere in 91 they changes the spline count for the transfer case from 22 to 23 teeth....Personally imho 91+ have the best shifter style

Man, it's fine. I have 2 complete cars. The 90GSX and the 91TSI... o_o I can use whatever I want.. it's just the TSI had a broken Axel, the crank was installed wrong, and I sold the head...o.o

So yeah. Whatever is needed, I have... I believe.. o_o

Do it right.....the talon as you stated does not have a hacked harness.....now your going to cut it up to make 90 stuff work in the 91...You need smacked.....get 91+ stuff and make it plug and play....


To the OP...

What I would do with the gsx is make is a full fledged parts car.....and the Talon the DD...

Now what I would do is pull the rear end out of the GSX and swap it into the talon...since the talon came with abs it DID NOT come with a lsd...mid 92+ cars were available with abs and lsd....

I would yank the front brake lines proportioning valve and 2 lines from the brake master cylinder to the proportioning valve out of the GSX and swap them into the talon....screw ABS....its junk on 1g's anyways.....Since the talon is a 91 it has the better harness imho....I would sell everything thats a 90 and opt for 91+ stuff aside from the oil filter housing...

The things that would need to be hacked are tps, coil pack, t-body, iac, , cas, transistor pack, gauge cluster, tach signal crap, plus much more....

Correct, in order to swap a 90 ecu in a 91+ car just swap 2 wires....but personally again I would rather get a 91+ ecu....

All interior parts will be the same....aside from some more electrical stuff.....

Again just its best to use 91+ stuff on a 91 car dont hack 90 shit into it.....

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