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Old 01-02-2007, 08:28 PM   #1
STANZ
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Default need feedback for a swap

My Legacy wagon is at the second interval for the timing belt replacement. I figure that it makes more sense to drop in a new motor. I know there is plenty of info on this forum and sl-i.net. Its just all overwhelming. Any ideas, simple or thought out, would be appreciated. There's a EJ25DE from a local supplier and JHOT has a couple options including a EJ20H tt.

thanks
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Old 01-02-2007, 08:30 PM   #2
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the tt motor is a no no . . something doesnt fit right unless you make it a single turbo motor instead. Others - Am I right on this? Otherwise if you do a 2.5L engine, then you got HG's to worrie about instead... up to you. Whats your price range...?

m.
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Old 01-02-2007, 08:46 PM   #3
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I'd say, get a cosmetic HG and leave it be.

or do a WRX swap, not a TT or JDM motor, especially if you have to I&M the car. Having a USDM ECU and engine should make smog easier. if you don't have to let the state check the ODBII, then go for it, get a JDM motor.

Or you could just get SOHC heads and swap a few things.
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Old 01-02-2007, 09:03 PM   #4
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Cosmetic gasket? WTF is that? (You mean cometic)

Emissions testing would make a JDM motor hard to do.

Mike is right about the twin turbo thing aswell. The RHD steering rack is ok with the two turbo setup, but our LHD steering rack wouldn't work with two turbos.

An EJ25 would definitely not be worth swapping in for you, because it is only marginally faster and would require all sorts of wiring.

Swapping is a heck of a lot more than just putting an engine in there. a WRX engine will bolt right up, but the wiring is a mess because Subaru uses one wiring harness for basically everything.

wtf...that was weird, it scrambled up everything I wrote...
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Old 01-02-2007, 09:07 PM   #5
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He's in LA...he's not going to be getting away with a JDM motor in his car unless he knows some "people"...
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Old 01-02-2007, 09:10 PM   #6
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hahaha thanks for all the quick info. i figured that a WRX swap would be the best option from what i've read. i know that its not drop in, bolt up and go. you have wiring, exhaust, etc. to deal with, with wiring being the worst headache.

maybe just a fresh 2.5 n/a would be a better option and just do some bolt ons? cheaper and definitely better on gas.
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Old 01-02-2007, 09:35 PM   #7
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You have an EJ22, right? An EJ25 wouldn't be worth the trouble of swapping.
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Old 01-02-2007, 10:09 PM   #8
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Quote:
Originally Posted by Wiscon_Mark View Post
You have an EJ22, right? An EJ25 wouldn't be worth the trouble of swapping.
well crap...rebuild? its the 95 legacy motor. they came with the EJ22 right? it has a balanced compression but its low. 90 all around
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Old 01-02-2007, 10:11 PM   #9
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Yeah, the 95s only came with the EJ22.

If you're on your second interval for a timing belt replacement, then you're not even at a very high mileage. Why would you want a rebuild? Or do you mean a buildup?
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Old 01-02-2007, 10:26 PM   #10
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Quote:
Originally Posted by Wiscon_Mark View Post
Yeah, the 95s only came with the EJ22.

If you're on your second interval for a timing belt replacement, then you're not even at a very high mileage. Why would you want a rebuild? Or do you mean a buildup?
Its not very high mileage but its pretty weak. Recommended compression is 110 i think and my motor is at 90 all around.
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Old 01-02-2007, 10:27 PM   #11
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Why do people have a hard time doing the Twin Turbo motors??!?

From what Ive heard, in Japan they convert them to single turbo often, as the HP is MUCH easier to make with one bigger turbo...

is that true, or just some crap?
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Old 01-03-2007, 12:37 AM   #12
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Quote:
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Why do people have a hard time doing the Twin Turbo motors??!?
From what I understand EM is a pain in the a** and I don't believe it mechanically can be done with our left hand drive cars without a full dash conversion and making new holes in the firewall.
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Old 01-03-2007, 03:07 PM   #13
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Quote:
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From what I understand EM is a pain in the a** and I don't believe it mechanically can be done with our left hand drive cars without a full dash conversion and making new holes in the firewall.
I'm kind of surprised no one has tried the TT setup with an ex-postal vehicle. A lot of people in the Northeast have seen RHD Legacy's as used by the US Post Office a while back. Forget the dash swap, it's already done!

JD
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Old 01-03-2007, 05:12 PM   #14
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You can still order I think just about any Subaru vehicle in RHD. Might help if you do work for a postal service.

The steering rack goes right through where the turbo's main tubing goes, IIRC, which makes the TT engines a PITA in LHD cars.
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Old 01-03-2007, 05:59 PM   #15
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Quote:
Originally Posted by Dobes View Post
I'm kind of surprised no one has tried the TT setup with an ex-postal vehicle. A lot of people in the Northeast have seen RHD Legacy's as used by the US Post Office a while back. Forget the dash swap, it's already done!

JD
Second that!!! Those postal cars have been on ebay for cheap!! plus another grand or two for a TT motor.. . .hot damn!
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Old 01-03-2007, 07:15 PM   #16
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2 turbos are not by definition better than one. Go to any of the 2nd gen Legacy forums for Australia or the UK and see what those guys say about the TT engines. There are a lot of complaints about a secondary leg as one waits for the 2nd turbo to spool up and come on. It is often called the valley of death. The serious tuners who own those cars invariable switch them over to single turbo applications.

There are a couple RHD postal wagons running around with TT swaps. It might take some digging with the search button, but you can find them if you look for a bit...
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Old 01-03-2007, 09:26 PM   #17
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Basically what Monson said; it's just not worth the effort to have what is basically a novelty, when you can do a WRX swap with less headache and get more power out of it. Maybe not initial power, but TT engines don't take mods very well. Something about the 300hp cieling on the EJ20H.
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Old 01-18-2007, 03:30 PM   #18
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Quote:
Originally Posted by Wiscon_Mark View Post
Cosmetic gasket? WTF is that? (You mean cometic)

Emissions testing would make a JDM motor hard to do.

Mike is right about the twin turbo thing aswell. The RHD steering rack is ok with the two turbo setup, but our LHD steering rack wouldn't work with two turbos.

An EJ25 would definitely not be worth swapping in for you, because it is only marginally faster and would require all sorts of wiring.

Swapping is a heck of a lot more than just putting an engine in there. a WRX engine will bolt right up, but the wiring is a mess because Subaru uses one wiring harness for basically everything.

wtf...that was weird, it scrambled up everything I wrote...

Have you swapped in an EJ25? Doesnt sound like it. All sorts of wiring To the OP, the EJ22--EJ25 swap is a direct, no real wiring needed. The 2.5 will run off the 2.2 ECU no problems. If you just want to replace your motor with little problems, throw in a Ej25 (with the updated gaskets). If you want some real power, bite the wiring bullet and swap in a WRX motor. Its not as difficult as most here would like you to think.
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Old 01-18-2007, 03:42 PM   #19
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Ugh, I think he mean wiring mess applies to the EJ20t; whilst the problem with the EJ25 is you'll still be slow, so why bother?

You could try getting a EJ20tt, then convert it to a single turbo unit (I'm not familar with the exhaust piping, but most like the wrx exhaust manifold and turbo will bolt up just fine). But then again you'll have to find a way to get the EGR system in there (JDM cars don't require EGR, like US and Europe).
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Old 01-18-2007, 03:52 PM   #20
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PhaseII EJ25 (which I believe is what the OP is talking about) would require a lot of wiring.

You can single turbo the EJ20H, but it's not a terribly strong engine, and wouldn't meet emissions. The later GT-Bs used the EJ207 which is more worth the effort.
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Old 01-18-2007, 04:49 PM   #21
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I thought the EJ20H were at least capable of the same kind of boost that the USDM WRX block is capable off?
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Old 01-18-2007, 06:08 PM   #22
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Well, yeah...but the USDM 2.0L WRX block isn't terribly impressive either.

I know a lot of TT owners have blown them up when they hit the proverbial cieling, which isn't much higher than stock
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