st205 into st185 swap faq/ and parts compatibility

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

Postby alltracman78 » Mon Oct 10, 2005 3:32 pm

I'm here.
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Postby CMS-GT4 » Mon Oct 10, 2005 3:45 pm

Can you wire a 185 harness to work for a 205 engine/ecu? If so... I love you. At least if you tell me all the details.
Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
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Postby alltracman78 » Mon Oct 10, 2005 3:48 pm

I have the ST205 ecu pinouts.....
That's about it.
My reply was more of a wiseass thing. :D
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Postby CMS-GT4 » Mon Oct 10, 2005 5:40 pm

I think I got most of it figured out anyway. I am taking the BGB and these notes to the shop this week and try and get all this right. It seems as if everything should hook up just fine. Little concerned bout the 2nd temp sensor but it may be OK. I am not using an air box so I think I will put it in the strait intake pipe.
Coldiron
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 Oct 19, 2005 5:12 pm

So I just finished doing my notes for a 92-93 pin conversion to the 3rd gen, and all I can say is wow. It looks like I may only have to move 2 pins. FPR (Fuel Pump relay) and PIM Turbo Pressure sensor.

Everything else matches up.

All I have to switch after is the install is a couple of wires for sensors on the engine end, and it should be good to go.

Now I just got to make sure I have the info figured out for the code 54 intercooler pump since I will have a fmic.

Here is a link to the 90-91 pin swap to 205.

http://img440.imageshack.us/img440/154/ ... mod1rz.jpg
Coldiron
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 k_trac » Wed Oct 19, 2005 5:50 pm

Thats cool for you! Shit, wish mine was a 92....oh well

Maybe I will end up going this route anyhow, its pretty much the only thing I got left for the swap. Mabye Ill make progress this weekend.

Kep me posted as to what you got!
The Screamer - '90 Red Alltrac - ST205 swap, 3" MP, 3" catback, intake, spec III clutch - FOR SALE $7000
The Sipper - '92 VW Jetta EcoDiesel

You scratched my CD!!!
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Postby CMS-GT4 » Wed Oct 19, 2005 8:04 pm

Make that 4 wires, but still not bad. My confusion now is based on that the first diagram does not have any wired moved to the IC ports. So maybe this means that by having no wires they are not bridging a connection and not throwing a code???? :shrug:

Once this thing is running, we will see if I get a code 54 or not.
Coldiron
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 Oct 26, 2005 11:13 pm

Had to use the '92 motor mounts and power steering pump.

So there is two more items that can not be used for the swap.

I am having a hard time figuring out what the hell wire goes to what. I guess when they drop in the engine, I will try and match up the temp sensors to splice into.

I will keep you all posted. My project may be delayed due to the fmic.
Coldiron
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 k_trac » Thu Oct 27, 2005 11:05 am

Ya, motor mounts dont match up....its too bad, I had them on when I was first putting the motor in then after a little tweaking I realized that only the half of the rear mount was compatable.

I did use my gen3 power steering pump however, it just had a different outlet for the high pressure line, which was a little tricky to work on in the car, but i got it all together.

I think I am going to stick with the 205 harness, the whole this is legnthened now, so I just gotta match up the box, may have some time soon. :shrug:

Let me know how its going man!
The Screamer - '90 Red Alltrac - ST205 swap, 3" MP, 3" catback, intake, spec III clutch - FOR SALE $7000
The Sipper - '92 VW Jetta EcoDiesel

You scratched my CD!!!
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Postby CMS-GT4 » Thu Oct 27, 2005 1:53 pm

What did you use to addapt the hard lines to the powersteering pump?

That way I don't have to buy a new one. My old one is fragged.
Coldiron
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 nynoah75 » Thu Oct 27, 2005 11:51 pm

Anyone have a clue what it takes to get a 205 into a 165?
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Postby k_trac » Fri Oct 28, 2005 12:10 am

Well, thats a tough question....

but my calculations show that it goes in .805 times

Thats what you meant right?? :twisted:

As for the PS pump, from what I remember the problem that I ran into was that the fitting that threaded into the pump off the 185 was too long, interms of the inverted 45 deg. surface bottomed out before the shoulder of the bolt sealed to the pump. Why it was designed with two seperated sealing surfaces....I dont know.....

But I just used a couple of aluminium crush washers and jacked it up to the bolt shoulder and 45 met at the same point. I did reuse that brass double bushing thing, in addition to the alu crush washers.

It started leaking when I was pushing the car around before I made that fix, now it hasnt lost a drop.

I hope that helped, let me know if there was anything else!
The Screamer - '90 Red Alltrac - ST205 swap, 3" MP, 3" catback, intake, spec III clutch - FOR SALE $7000
The Sipper - '92 VW Jetta EcoDiesel

You scratched my CD!!!
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Postby CMS-GT4 » Fri Oct 28, 2005 12:14 am

There is a brass fitting company in town. I was just going to see if they cold make the old fitting work on the new one.

I'll take some pics of the part I need.

We are slowing down on the project. They are going to black out my engine bay before installing the engine, then once the fmic is ready, we are going to put everything in and get the wiring done.

The part I am confused on now are the things Scott mentioned earlier.

The 2nd water temp sensor on the water elbow. Where is that? And what wire do I need to splice into it.

I am also trying to determine which part on the tb is the temp sensor he was talking about. I thought about using the cold start injector wire on that one since it would be so close.
Coldiron
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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CMS-GT4
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Postby k_trac » Fri Oct 28, 2005 12:19 am

Well, if you are going to have something machined, just take that fancy 21ishmm bolt with the holes through it and just have the 45 deg angle machined down whatever depth it would take to use the original brass washers.

Heck, you could probably find the correct angle countersync and use a hand drill / drill press and take it down some.

Good luck with that wiring....Im still avoiding it at ALL costs.... :doh:
The Screamer - '90 Red Alltrac - ST205 swap, 3" MP, 3" catback, intake, spec III clutch - FOR SALE $7000
The Sipper - '92 VW Jetta EcoDiesel

You scratched my CD!!!
k_trac
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Postby nynoah75 » Fri Oct 28, 2005 3:03 am

Seriously I know some people here have put a st205 engine into a 165 body. Does anyone here know what I need to do to do this. I do not want to reinvent the wheel. I would rather learn from someone and build on that knowledge.
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