DSM Help GS to GST conversion
 

My buddy has a '97 GS eclipse spyder that a shop just dropped in a 1g 4G63. The engine runs extremely rich and seems to be butchered.

The swap was done by Goral's in Etobicoke, Ontario...and honestly they seem to be pretty stupid. My buddy had the engine delivered with a full harness and everything, a complete swap. Instead of swapping the harness over they mixed and matched parts off the 2.4l NA engine with the turbo one to accomodate the stock harness. The engine runs...kinda and extremely rich. The economy is sitting around 200km for the whole tank.

I'm want to help him fix this situation but I am having difficulty locating any documentation on this swap. Can anyone offer some suggestions or a write up of some sort....

Car - 97 GS spyder
motor 1g 4G63-T

Re: DSM Help GS to GST conversion
 

if he paid someone to do the swap for him they need to fix whatever they didnt do right.

Re: DSM Help GS to GST conversion
 

i concur

Re: DSM Help GS to GST conversion
 

He hasn't given them any money yet, he took his car back as well.

Re: DSM Help GS to GST conversion
 

well he's already on the right path, unfortunately there isnt many DSM guys here. have you/your friend posted this question on any DSM boards yet?? that would be my first step in solving this problem

Re: DSM Help GS to GST conversion
 

I have talked to a few mitsu guys already, nothing to useful....I'm coming to the conclusion of pulling the motor and doing it in a way that would make sense to me...putting in the right harness. But, I'm more of a honda guy. I've only pulled 2 DSM motors and they both have been GSX's. No NA to turbo swaps sooooo any help would be appreciated.

Re: DSM Help GS to GST conversion
 

you cant mess up the electronics no matter how you mount hte engine. its something electronic, no need to pull the engine.

Re: DSM Help GS to GST conversion
 

check your lines for a vac leak ;)

Re: DSM Help GS to GST conversion
 

It's more complicated than that...the guy bolted the intake manifold and all the sensors from the 2.4l onto the turbo motor, swapped the CPS....and well everything else. The MAF is the wrong unit and so forth. The entire thing was a butcher job and the NA ECM is being used to run it. The car bogs and runs like absolute ----. I am just looking for a write up on the turbo swap.

I've already redone all the vacuum and charge lines to teh best I can, put in a new re-circ valve and cleaned up the hoses.

Re: DSM Help GS to GST conversion
 

the maf and the ecu are wrong and your asking why its not running right ::)

Re: DSM Help GS to GST conversion
 

if you know what parts and ---- is wrong. Just switch it and stop telling us.

Re: DSM Help GS to GST conversion
 

I know most of the parts that are wrong, but I've never done a 1g to 2 g swap...i.e. OBD1 - OBD2 dsm swap...so what else has to be done. Every time I've posted I've asked for documentation or a write up...not why it isn't working...I appreciate you reading and posting, but honestly read the whole thing instead of stating the obvious.

Re: DSM Help GS to GST conversion
 

First off you NEED to have:

FWD 2g turbo ECU
1g turbo CAS
unplug the damn TPS (otherwise you have a random misfire code and it will run like -------)
2g turbo MAS




these are thing that NEED to happen. I'm not suggesting them. Then check over the wiring. Read this damn article and follow it. http://www.magnusmotorsports.com/article_1g2g.htm


Good luck.

Re: DSM Help GS to GST conversion
 

Thanks Koby

Re: DSM Help GS to GST conversion
 

Just wondering, what engine mounts are being used?

Re: DSM Help GS to GST conversion
 

You use all the 2g 4g63 motor mounts. The lower timing gear cover has to be cut a bit, but that is silly little "problem"

Re: DSM Help GS to GST conversion
 

try to use as much of the 2g gs-t parts u can. you shoulda jus got a 2g gs-t motor/harness/ecu and you coulda called it a day. basically u gotta convert it to 2nd gen everything since ur using stock management. not positive if the 2g harness can jus be put on the 1st gen. dont kno if all the sensors are the same but thats what u have to pretty much achieve. coulda reduced most of ur problems with the proper motor for ur generation car. it has nothing to do with "na to turbo swap". that hardly means ----... its like any other u jus need the ecu n so forth. match his setup to be like yours. 2nd gen engine harness n blah blah blah. good luck =x

Re: DSM Help GS to GST conversion
 

That is a list of reasons why the car doesn't run right, why are you asking us what is wrong, you need to change all of those things

Re: DSM Help GS to GST conversion
 

Why would he want to waste his time putting in a 2g turbo motor in that? ::)
If you knew anything about DSM's, you'd know the 2g 4g63 has an issue with crankwalking. It has been blown a bit outta proporsion if you ask me, but the risk is still there enough that I wouldn't waste my time and money on putting one in when I could have just put in a 1g 6-bolt block instead. The 6 bolt swap is very commonly done by 2g owners.

If you don't know what ur talking about, then just... :-X

Re: DSM Help GS to GST conversion
 

Just to clarify this is replacing the 420 neon engine right? I wasn't aware that the engine mounting points on the chasis were the same from turbo to non-turbo. I've briefly searched on the topic before but I always ran into, "just buy a turbo model.

Re: DSM Help GS to GST conversion
 

2g owners who kno what there doing do this swap all the time. this guy doesnt kno ----. no ---- the 2nd gen motor c-walks more then a group of crips at a gang party but thats besides the point. for someone who doesn't kno ---- i recommend him to jus get a motor in that is meant for it. doesn't seem like he's aiming for high horse power cuz there not even using a turbo ecu at the moment so u can :-X if u knew anything bout dsm's u would kno that they dont kno even 1 bit. you can't tell him enough info on the 1g motor and how to make it work in a 2g chassis. all the big hp guys with fully built/real management do 1g motor swaps. not someone who just wants the car to run properly with a bit of boost. if he knew jus that lil bit then he wouldn't call it a gst conversion...

do me a favor n suck my cock haha. read up on the dsm forums. ju on, u only kno basics bout dsm's so before u start thinkin ur some kinda pro with them and refer to basic information as key info... u need to read a book or buy one. i dont own one but i have 6 friends with them that build them all the time.

Re: DSM Help GS to GST conversion
 

And I have 6 friends with vaginas, so I guess that makes me an OBGYN?

Spending the time it takes to swap out the neon motor with a 4g63, it's just retarded to waste all that on a washy 7-bolt.

Re: DSM Help GS to GST conversion
 

ive never seen anyone c-walk a 7bolt that was jus useing it as it came from the factory. unless ur building it with 1000's invested u have nothing to worry bout. it aint gonna c-walk on u doing 14psi on the stock turbo/motor/ecu... anyway's were off topic. leave it at that.

Re: DSM Help GS to GST conversion
 

I'm ashamed to see another "dsm" guy in this thread being such an idiot. Even mentioning crankwalk just makes you a big ------- idiot. Nuff' said.

turboDA6 isn't even a dsm guy and he owns you.



BigJ - Don't worry about anything he said.

G2 - Yes I realize we are going NT to Turbo motors, the engine and tranny mounting points are the same. Hell you even have the same frames with mounts in the rear for a differential, and driveline. But the gas tank and lots of other things are in the way, but thats a whole new topic.

Re: DSM Help GS to GST conversion
 

*edit*

OK I just realised that this is was a GS Spyder, so it had the 4g64 in it. I was thinking it was a typical 420a powered GS. My bad and ill stick my foot in my mouth. I'll admit that was my ---- up and I deserved flames. Sorry for the mix-up. I was thinking this was a 420a-4g63 swap. I think I'll pass the blame on to my undiagnosed ADD for not reading this closely enough!