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Old 06-03-2008, 01:25 AM   #1
dj rebel
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Default Will An EJ20TT Engine Fit On My 92' Legacy?

all i want to know if its possible at all???

i know that the one of the turbos interferes with some of the brake parts.

BUT IS IT POSSIBLE????
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Old 06-03-2008, 07:30 AM   #2
ReubenH
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Yes and no. Allot needs to be done, and it's fricking complicated... All for an inferior system, and engine that will likely blow a big end bearing in a few thousand miles (TT's are notorious for it, much more so than 2.5's and headgaskets).

Trust me, i owned a twin turbo GTB, blew a big end bearing, and rebuilt my engine into a V3 STi engine, with VF39. MUUUUUCH more fun, and soooooooo much easier.

What you can do is find an EJ20R, steal it's heads, intake manifold, intercooler, injectors, loom and all that crap - seeing as they are pretty much the same as V3 STi parts (except the intake manifolds vac line locations, and extra oil return on the left head) - and built a single turbo engine using a V3 STi ECU or aftermarket ECU, and a USDM closed deck 2.2L block. that engine would be a killer!

EJ20H's are reported to be semi closed deck, though i find that hard to bileave, and have a non V3 STi combatible loom, smaller grey top injectors and all that. really not worth it IMO unless you'd go aftermarket with all that stuff. EJ206's and 208's i know nothing about, so don't ask me (They are the BH/BE twin turbo motors)
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Old 06-03-2008, 07:55 AM   #3
Jonathan
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I *think* the Twin Turbos were ONLY designed to work with RHD built cars and that here in the United States were most cars are LHD the EJ20TT will not simply bolt in place. Maybe you could find a RHD postal vehicle somewhere ? Either that or you have a buddy who works in a machine shop who can offer to swap things around so they will fit.
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Old 06-03-2008, 08:24 AM   #4
Huffer
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The EJ20 "TT" type engine will require turbo relocation to avoid hitting the steering column. They are RHD cars.
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Old 06-03-2008, 11:33 AM   #5
dj rebel
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thanks guys for the response. im still thinking about it

i've talked to some friends and they say that i should give it a go. my brother was a HONDA mechanic for 3 years before transferring and one of my friends has his own shop. so i think that i have the people to make it work but as ReubenH the engine might blow after a couple thousand miles so i dont think that it will be worth it in the long run

i'll keep thinking and searching maybe i'll find something better for the car.

thanks!
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Old 06-03-2008, 03:52 PM   #6
runninstrong
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It's possible. There was a TT swapped Legacy on ebay last month.
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Old 06-03-2008, 09:18 PM   #7
dj rebel
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Quote:
Originally Posted by runninstrong View Post
It's possible. There was a TT swapped Legacy on ebay last month.
you just gave me more hope man!
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Old 06-03-2008, 10:59 PM   #8
Kawikid20o2
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Quote:
Originally Posted by runninstrong View Post
It's possible. There was a TT swapped Legacy on ebay last month.
was it converted to RHD?
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Old 06-04-2008, 03:26 AM   #9
ballitch
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If you really want to do this, I would definately think about buying a RHD postal car to do this too, save you alot of headache. Then just hop onto ebay and grab a JDM twin turbo motor with all the fixens and start swappin'.

But keep in mind, those motors didnt make huge power. IIRC, most made around 260-280 chp.


~Josh~
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Old 06-04-2008, 07:34 AM   #10
ReubenH
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206KW at the flywheel, or 275HP, and not very expandable. they break. Having owned one, i strooongly recomend the rebuilding a TT engine into a killer single turbo. TT's not worth the hassle. I hate to be the naysayer, but that's really what i think.

Now if you did to it, you would need a front cut to make this easy really. that or you gotta find everything, they have a complex cacuum system that will cause you a world of pain, and you'd have to do the full reloom, then the whole RHD issue (again, half cut maybe?) That's the hard part though, the rest is a walk in the park compared. Then you have a car that's hard to drive, and has no aftermarket parts for it. Except the ZS sequential controller which is a must!

To sound like a broken record. if you really want a slice of true JDM power in your legacy (and of the era, as god intended ). Buy it, rebuild it, and make it a single turbo STi. far easier, far more potential.

some pictures:

















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Old 06-04-2008, 10:10 AM   #11
dj rebel
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will u lend me some of your knowledge in order to accomplish this???

what extra parts will i need to the engine into a single turbo?
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Old 06-05-2008, 09:52 AM   #12
ReubenH
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Well for ease of conversion, anything V3/4 WRX and STi. Unfortunatelly those parts are non-exsistant in the states, making life rather hard. This list for the single conversions actually quite extensive i'm affraid, but it's just the little things like oil return lines and crap like that.


List has been edited to account for part availability in the US. Items denoted with a * are not required. so don't bother. italicized items are not applicable. List is also only applicable to EJ20R's. EJ20H's are not as compatible with single turbo conversions, and less powerful.


A Version 3/4 STi ECU - Aftermarket would be better, but $$$ for a custom dyno tune (V3 STi just plugs right in, no tune required)
A turbo. Such as a VF22, 30, 39 etc. From a single turbo subaru (Single scroll!).
Single turbo Coolant supple and return lines. DIY these
Single turbo Oil return line (rubber pipe) There is a pipe from the TT system you can use.
Single turbo Oil return line (Metal pipe in block) This will be one hard SoB to find. It's possible to use the legacy's, but it's a shoddy job if you do.
Single turbo exhaust manifold.
Up-pipe
Downpipe.
Single turbo up-pipe bracket. - Possibly a USDM one will work, otherwise DIY or live without
Single turbo intercooler Y pipe. Anything from V3/4 and 5/6 will work - and only those will work on the GTB intercooler.. It may be best to go aftermarket, or jerry rig a newer intercooler, which is a little mission in itself. (gotta relocate the clutch master cylinder... atleast in RHD subies you do, NFI on USDM)
Turbo -> Y pipe hose
Turbo Inlet pipe - only some will fit!!! possible the hardest part to find is USDM land. I would try aftermarket first.
Crank case breather line (just DIY it)
Aftermarket atmosphere venting only BOV. You will not be able to recirculate it without getting a complete V3/4 WRX manifold. the upshot is a psssshhh every gear change, and a backfire usually too. yay! (byebye cat converters though, bwahahaha)

2 meters of vac line. You may be able to make do with the leftovers from the TT system.
Bolts to block off the primary turbo's Oil supply, return and coolant return lines on the left hand head
Gaskets for:
Intake manifold
*Throttle body (only $3)
Exhaust manifold
Turbo/up-pipe
Turbo/downpipe
Coolant
Oil
Oil filter + Sump plug washer
*Silicone radiator hoses
*Silicone coolant hoses (nows a good time to replace them!)



Now... that's just the list of parts required to take two turbo's off, and put one bigger one back on. It's actually half the size as before, after i took off all the STi parts of that model year that make the engine bay look good (like replacing the intake manifold). The list of TT specific parts you must get with the engine will be farking massive compared. That of course does not apply if you manage to get the complete engine, and all it's parts such as the vacuum cannister, solenoid box and all that ****e.. You can also get all your single turbo parts for USDM Gen 1 turbo's too, the bits should all work. i don't see why they wouldn't.

Last edited by ReubenH; 06-05-2008 at 10:08 AM.
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Old 06-09-2008, 07:18 AM   #13
JoKerNZ
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to sum up a stock TT wont fit = steerage in way

can make it fit= twist turbo/s (I guess)

was a good idea in theory - smoother power delivery but highly strung motors not really built to handle the power at the top end vs WRX which gives a whalloping kick in the back very early in power curve etc
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