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RX Sti Build (pics)

RX STI JDM ej ej20 ej20k turbo intercooler swap header

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13 replies to this topic

#1 CHIM

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Posted 31 May 2013 - 12:08 AM

Ok. so I have  started back on my RX project again. been really busy with moving and such, she kinda got put on hold. Picked up my new JDM motor and tranny and have slowly been tearing it down to do a re-seal and tighten things up before I drop it in.

 

 

Pics of my 5-lug swap...

2011-10-21_17-07-36_173.jpg

 

2011-10-25_16-22-11_863.jpg

 

20121013_180238.jpg?t=1369973558

 

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Using front end parts from a 99 OBS rear is all XT6.

 

And here is what I have been doing more recently.

 

20130320_134412.jpg?t=1369973534

 

Not sure if anyone remembers me contemplating dropping a EJ20t into her but atlas I decided not to "settle" for what I didn't really want... SO yeh. here's my new Version 4 JDM EJ20 Sti and tranny...

 

Motor came pretty well complete and I got a smoking deal on it! included the TMIC,harness ecu, turbo timer, and Syms racing Downpipe and header!

 

20130320_153012.jpg?t=1369973569

 

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Now, I could have dropped this motor in and head it running by now but I convinced myself to tear it down and do a complete re-seal of the entire thing. And since im doing that I might as well to the head gaskets and port the heads and intake while im in there. also ordered up a set of ARP head studs.

 

20130320_205208.jpg?t=1369973575

 

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Also powder coating a few things while I have it apart.

 

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20130512_181439.jpg?t=1369973703

 

I'm going to be powder coating everything I can on this guy to keep it looking clean for years to come. ill post more pics of stuff like that as they happen. lots of cleaning left to do, still need to port the heads and intake, waiting for gaskets to arrive (hopefully tomorrow). I've also been getting goodies for this project as funds allow. see such goodies below B) .

 

20130405_085727.jpg?t=1369973606

B&M Turbo oil cooler.

 

20130528_205827.jpg?t=1369973713

New TMIC next to the JDM IC that came with the motor. Figured I had room for a larger one so.. Why not! :D

 

20130528_205946.jpg?t=1369973734

New silicone turbo inlet tube and New TMIC Y pipe.

 

20130528_210121.jpg?t=1369973741

Stage 3 6-puck ceramic clutch and 12lb flywheel. should give me nice fast revs! also considering going with a lightened under drive pulley kit.

 

20130530_154128.jpg?t=1369973747

New GFB response BOV. fully adjustable atmo/resirc!

 

20130530_154458.jpg?t=1369973758

 

So, that's my progress thus far. As I said as funds allow I will be doing more work to it. should be running before to much longer and I will keep everyone posted as things happen.



#2 TOsborn

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Posted 31 May 2013 - 08:08 AM

Killer!



#3 Loyale 2.7 Turbo

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Posted 31 May 2013 - 10:20 AM

Beyond Awesome! Thumbup.jpg

 

It is a Very Good Idea to do a Complete engine Reseal, also to port Heads and intake, and powder coating everything; The five lug swap is very Clean too... I Like the way you work.

 

I have a Question: The Rear Diff from the XT6 should match the STi Trans, How about the Numbers?

 

Kind Regards.



#4 presslab

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Posted 31 May 2013 - 12:14 PM

That exhaust is sick, I'm jealous. You'll lose the boxer rumble though.   :P  How much if I may ask was your JDM engine/tranny/ECU?

 

When I opened up my JDM ECU I discovered it was already chipped; well actually I discovered it by the crazy detonation!  Even the stock maps had way too much timing for the 91 pump gas here.  Yours is a 3 plug ECU, yeah?

 

You'll need an LSD rear diff for sure.

 

 

Looks like you're off to a great start! 



#5 CHIM

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Posted 31 May 2013 - 02:18 PM

That exhaust is sick, I'm jealous. You'll lose the boxer rumble though. :P How much if I may ask was your JDM engine/tranny/ECU?

When I opened up my JDM ECU I discovered it was already chipped; well actually I discovered it by the crazy detonation! Even the stock maps had way too much timing for the 91 pump gas here. Yours is a 3 plug ECU, yeah?

You'll need an LSD rear diff for sure.


Looks like you're off to a great start!


I got the motor for $2,300 shipped. speaking of diff's that brings up a question. the tranny is a 4.44, is it possible to make the impreza diff for the EA axles? Maybe pull the stubs from an ea and place them into the impreza diff so my axles will slip onto them? the diff is something I have yet to do and without having an iimpreza diff available I'm not sure how I'm going to make that work as of yet. any ideas anyone?

Edited by CHIM, 31 May 2013 - 02:23 PM.


#6 Numbchux

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Posted 31 May 2013 - 06:07 PM

I got the motor for $2,300 shipped. speaking of diff's that brings up a question. the tranny is a 4.44, is it possible to make the impreza diff for the EA axles? Maybe pull the stubs from an ea and place them into the impreza diff so my axles will slip onto them? the diff is something I have yet to do and without having an iimpreza diff available I'm not sure how I'm going to make that work as of yet. any ideas anyone?

 

The axle stubs have to match the diff carrier. So you could take the LSD that was in the RX, and put the LSD carrier in the 4.444 case with it's gears, and then you could use the EA82 stubs and axles with no trouble.

 

Otherwise, in order to use the impreza diff as-is, you will need hybrid axles.



#7 CHIM

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Posted 31 May 2013 - 07:13 PM

The axle stubs have to match the diff carrier. So you could take the LSD that was in the RX, and put the LSD carrier in the 4.444 case with it's gears, and then you could use the EA82 stubs and axles with no trouble.

Otherwise, in order to use the impreza diff as-is, you will need hybrid axles.



excellent! that was what I was looking for. ty!

#8 rpholz

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Posted 31 May 2013 - 09:32 PM

Wish you weren't in Oregon, I'd gladly buy your EA82t and d/r

#9 l75eya

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Posted 02 June 2013 - 12:01 PM

This thread is full of awesome...



#10 O.C.D.

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Posted 02 June 2013 - 09:39 PM

Dayyyyuuuuuuummmmm!!!!

This is awesome!

Can't wait for more.

#11 subaruguru

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Posted 06 June 2013 - 12:29 AM

sweetnesss!



#12 92_rugby_subie

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Posted 14 June 2013 - 06:30 PM

Amazing build so far! Are you by chance on the FB group called PNW Subaru Enthusiasts? I feel like Ive heard of this swap going on a few times when discussing old gen stuff on there...



#13 CHIM

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Posted 16 June 2013 - 12:17 PM

Yup. im on pnw. Darrel posted up a few pics of my build. I don't really post anything on pnw, im a usmb nut so where else would I place the build. B)

 

Currently working on match porting the heads and intake and regrinding the valve seats while I'm in there.


Edited by CHIM, 16 June 2013 - 12:22 PM.


#14 carfreak85

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Posted 16 June 2013 - 08:36 PM

Interesting choice in intercoolers...  From what I've read, the supersized TMICs are notorious for heat soak and are generally regarded as all show, no go parts.  Might want to think about swapping back to the OEM part.

 

http://forums.nasioc...&highlight=tmic

 

Obviously this is your car and you can choose to do with it what you like, in fact I have debated making this post since your initial post, but finally decided to.  Again, not intended to be critical, just some food for thought.







Also tagged with one or more of these keywords: RX, STI, JDM, ej, ej20, ej20k, turbo, intercooler, swap, header

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