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Registered
2004, Forester XT, white
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7 Posts
Discussion Starter #1 (Edited)
Ok So I am sure that some of my questions are noob questions, and others are a little more indepth and technical. So I am going to just save myself some time and condense this into one thread.

So after alot of thought and pondering on what I wanted my next car/project/obsession to be, I fell inlove with the idea of an rsti/22b copy. Like most on here who are after a 99-01 impreza RSTI build, they are planning on doing an engine swap and a series of other mods. So my question to you is, if I am going to do an engine swap, what would be the most practical engine to use in a swap, and what work would be involved in an engine swap(I know its alot easier said than done). What Motor should I use? What other parts will I need? How do I wire it to work with the stock RS dash and such? Will I have to do something with the ECM?

I know all these questions can be answered with extensive research and reading, but I really just want to know what I am getting into here with thinking about taking on a project like this. The vibe I am getting when people talk about these swaps is that they're no big deal and its something that can be done on the weekend in a garage, but the more and more I look at build threads, that doesnt seem to be the case.

EDIT: also any suggestions for tasteful mods to start out are appreciated as well.

Any help or input is appreciated!
 

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Registered
2004, Forester XT, white
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7 Posts
Discussion Starter #3
yeah I was looking at that thread earlier today, and I think the ej205 is what will be best for what I am trying to do.

anyone have a link to a super in depth/descriptive thread on an RSTI build?
 

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WRB 1999 Ver. 6 RSTi
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60 Posts
Honestly, if you wanna do a budget/reliable build go with an 02-03 WRX motor. If you can, buy a totalled one for cheap. Obviously make sure the engine works. You just need the FPC, ECU, Engine/Dash wiring harness and you're set. Since it's a 5 speed, all drivetrain components are interchangeable without modifications. You can even use the front WRX brake brackets and put them on your RS since they fit but also give you a better than stock braking system since they're a tad bigger than the RS's.
I went a different route but I did that base and built on it.
 

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2000 AW RSTi sedan
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180 Posts
Honestly, if you wanna do a budget/reliable build go with an 02-03 WRX motor.
I'll have to agree on this. Knowing what I know now when I did my swap, I would've gone with something USDM. Tracking down the right valve bucket shims for my EJ20K was a pain. And an older swap means no OBD, good for an older body, bad for a newer body. Also invest in a wire merge from iWire, trust me.

Although the Version 4 clip I got was good for a few things, like clear markers, turbo subrframe, aluminum control arms, etc.
 

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Registered
2004, Forester XT, white
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7 Posts
Discussion Starter #8
The wiring harness is really was what I was fearing the most, now that I know there is someone out there that does a plug and play system, it is if a giant weight has been lifted off of my shoulders! lol.
 
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