st205 into st185 swap faq/ and parts compatibility

Q&A regarding engines, turbos, and intercoolers and power upgrades

Postby CMS-GT4 » Fri Oct 28, 2005 3:24 am

I know at least one person on this board has. I would talk to Chris (gtfour.ca) He knows a bit about wiring. I would look to him to see what is needed for his 185 swap he did, then supliment that with this data. Thats the best I can help with. Good luck and keep us posted.
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby k_trac » Fri Oct 28, 2005 11:46 am

I would think it wouldnt be that much different than into a 185.

For instance, there have been plenty 185 engines put in 165's. And it looks like the easiest way to get a 205 engine to work in a 185 is to use the 185 harness, so take that same concept and repin the 165 harness and switching some connectors and apply that to the 205 motor.

Granted, the 165 harness may be older and more different than the 185 harness...
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Postby brophats » Sun Oct 30, 2005 7:07 pm

so whats different about the power steering pump on the st205 as apposed to the st185. i'm currently in the middle of doing this swap too. the wiring was pretty easy i used a brand new st185 harness. but i'm trying to figure out what other parts i need. cause if a 92-93 ps pump can be used then i'm good i can get one of those pretty easy and which mounts are different?

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Postby CMS-GT4 » Mon Oct 31, 2005 2:43 pm

The hardline does not fit into the 205 pump. I would have used my 185 pump if it wasnt for it being damaged. So I am making an adapter for it to work on my pump.

I hope to have every going by this weekend.

We are blacking out the engine bay, cause I don't want to have to pull the engine again when I paint the car.

Also having to toss some stuff from the trunk that got spoiled during the rain when the window got busted.
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby CMS-GT4 » Thu Nov 10, 2005 2:05 pm

We got the engine and everything in. Figured out the solution to the steering pump.

There is a main adapter in the body of the PS pump. We just had to swaps those and then we could use the hard line from the 185.

We are running into a sensor problem right now though. I am going to take some pics tonight and post them up for everyone to see. I have a hand full of sensors that are not working. I will post later and hope we can sort this out.

Cheers,

JC
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby Fat Trac » Thu Nov 10, 2005 5:46 pm

oh i'm here, just reading. am going to do this swap in the next couple months into my 185 as well. are you guys using the 185 ecu? wouldn't it be easier to use the 205 one?

on the 165 i imagine you will have exhaust issues, and the engine won't clear the hood.
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Postby CMS-GT4 » Fri Nov 11, 2005 2:27 am

We are using the 205 ECU, but the 185 harness. Supposed to be easier that way instead of wiring in the accesories.

I am still trying to dig the damn stock ecu out. Fricken A man.

The piping was going to be late, but its supposed to be here monday. Trying to get a core in that time too.

Can anyone point out where the 2nd water elbow is? I need to wire into it for the 2nd tmp sensor.

We are having a few sensors that do not match the plugs. So I am going to try and use the old sensors.

Also the accesory belt from the 185 is about 1" too small.

Any suggestions for pulling out the damn ecu?

Also, any links to removing the airbag computer?

And what the hell is a speed limiter computer?

I don't want to put that shit back in.
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Postby CMS-GT4 » Mon Nov 14, 2005 2:27 am

So, I think the speed computer is for cruise control. I am going to leave the airbag computer unplugged unless it doesn't let the car start.

I have a hand full of vacume lines I am trying to figure out.

Anyone have any links or reference to the 205 vacume hoses?

Going to try and finish the car tomorrow night. I will let you all know how it goes.
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Postby k_trac » Mon Nov 14, 2005 2:56 am

I got most of the vac hoses taken care of, Ill see if I cant get a pic tomorrow.
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Postby CMS-GT4 » Mon Nov 14, 2005 3:26 am

Please do.

I think I have all the wiring sorted out less the two water temp sensors on the elbow.

In the place the THAM sensor will go, I have an egr temp sensor. I am just going to splice it to the THAM sensor.

The rest should be cake. Except those hoses...
Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby CMS-GT4 » Mon Nov 14, 2005 6:40 pm

Any update on those vacume line pics?
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92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
www.noritoy.com | noritoy.deviantart.com | http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=19891
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Postby CMS-GT4 » Wed Nov 23, 2005 11:49 pm

Well, she is back home now and I am trying to finish the car up. I am really concidering replacing the rear hatch with lexan instead of glass. My only concern is if it fogs up, I have not defroster.

I am also thinking about ditching the A/C. I bet I can get this car under 3k.

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Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby grip addict » Thu Nov 24, 2005 12:48 am

lookin good, awaiting the finishment/writeup :D
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Postby illGT4 » Sun Nov 27, 2005 7:05 am

Good work JC.

I am searching for a descent 205 clip for the 185 and I stumbled across your thread. I wish you luck and I will keep checking back here to see how you are coming along.

I'm throughly bored with the GT-Four.. I need something like this swap to get things exciting again.

Top work, man! :wink:
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Postby k_trac » Sun Dec 04, 2005 6:17 pm

Ok, so Im gonna use my trusty old 185 harness, thanks for that write up, would never have done it without that. More I look at it, more sense it makes. :oops:

Have a question though.... In the case of the 02 sensor, knock sensor, etc., do I use the perspective 185 sensor or swap over the plug from the 205 harness in order to use the 205 plug?

I do plan on using my 205 alt, starter

Thanks!
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