EJ20T Swap

LegacyT · Post by **LegacyT** » Sat Apr 03, 2004 12:35 am

heh, crazy how we finished at the same time, you missed the EA82 and EA82T's, they were closed deck as well haha.

Mark,

snowjob · Post by **snowjob** » Sat Apr 03, 2004 12:52 am

So Am I correct in thinking that if this is a legacy RS then it will have a hydraulic clutch like our cars do, or a cable one?? aslo will the gearbox be the same as ours?
I know many of you guys are probably saying, wow this guy knows very little about this engine/tranny combo considering he's just bought it, but hey, the price was right, and I need to learn fast

Snowjob

vrg3 · Post by **vrg3** » Sat Apr 03, 2004 1:03 am

Yep, it'll have a hydraulic clutch and the transmission will be similar to if not the same as the USDM Legacy Turbo's.

If it came with the clutch hydraulics you may not be able to use the master cylinder and/or hoses, since they're for an RHD car.

LegacyT · Post by **LegacyT** » Sat Apr 03, 2004 1:08 am

Yup identical gearbag as north american turbos.

Mark,

snowjob · Post by **snowjob** » Sat Apr 03, 2004 2:27 am

I've already thought about the RHD thing, and I think I can easilly get some hydralic hoses made for this application to fit. The engine has 30-40000kms on it, should I change the clutch now while it's out of the engine, or wait?,, anything I should do to the gearbox before I intstall it??

vrg3 · Post by **vrg3** » Sat Apr 03, 2004 2:32 am

Yeah, the hoses aren't a big deal. The stock hoses both have 10mm banjos on each end. Pretty standard really. I don't know what the deal is with RHD cars and clutch dampers; it's possible they don't have them. I don't know.

How did it come to be that such an engine only has 30-40 thousand kilometers on it? That seems insanely low. I'd say that's low enough to be suspect... I'd change the clutch now since it's easy to do it now. Put in a lightened flywheel while you're at it.

Matt Monson · Post by **Matt Monson** » Sat Apr 03, 2004 5:14 am

LegacyT wrote:Nice find, It's an 89-93 legacy RS engine too Fully closed deck shortblock, the best you can get. Its gonna come with an RHB5 VF 12 turbo

Mark,

A couple of corrections:
It is an '89-91. You can tell by the silver AWIC. After that, they were black.
Also, it will not have a VF-12 because it is definitely not an RS-RA (which had a gold AWIC and rocker covers).

If it was from an auto, it would have a vf-10, just like our USDM Legacy autos, and would make the 200chp someone else mentioned.

But this is a 5spd, and as such will come with the bigger VF-8 and will be making 220hp stock. The difference, between the VF-8 and the VF-10, is that the VF-8 uses the P18 exhaust housing like the one found on VF-24's from v4 STi. The VF-10's (and VF-11's) use a smaller P15 exhaust housing, with the difference between the 10's and 11's being the number of blades on the exhaust fan (9 for the 10 and 10 for the 11). And one last thing, the VF-12 uses the P20 exhaust housing, like the one found on the monster VF-22. All four of these turbos (the 8,10,11,&12) use the BHB5 compressor housing on the inlet side....

LegacyT · Post by **LegacyT** » Sat Apr 03, 2004 10:38 am

legacy rs's didn't make 220 hp stock. Who cares if its 89-91 or 89-93 because of the intercooler, the engine package is the same thats what I was trying to get at.

Mark

Matt Monson · Post by **Matt Monson** » Sat Apr 03, 2004 3:32 pm

http://babelfish.altavista.com/babelfis ... _en&tt=url

You seem pretty sure about that...

LegacyT · Post by **LegacyT** » Sat Apr 03, 2004 3:47 pm

I have a jdm 1990 legacy RS handling sedan brochure in front of me. Stock rs hp is 220 ps or metric hp, thats about 216 normal hp. just tryin to be as specific as you with the intercoolers.

Mark,

snowjob · Post by **snowjob** » Sat Apr 03, 2004 9:43 pm

Ok So the Turbo is a Vf-8, Matt you said it's bigger than a VF-10, meaning it will create a larger amount of Boost, or it will spool up quicker... What turbo is in our USDM legacy's?? VF-10?

Also, what should I do to the engine before install, I'm planning on replacing the timing belt, plugs, hoses...anything I'm missing that is vitel?? Also what engine should I order parts from an EJ20T,(IE. When ordering parts for this engine, will a modern WRX ej20t engine parts fit for my application??)
Thanks
Snowjob

LegacyT · Post by **LegacyT** » Sat Apr 03, 2004 10:00 pm

theres contant controversy. the most accepted is that 5mt turbo's got the vf 11 and autos the vf 10, but I can't be a 100 % sure of that.

Mark,

Matt Monson · Post by **Matt Monson** » Sat Apr 03, 2004 10:05 pm

I haven't gotten around to cross referencing those old EJ20G parts yet, but I plan on pulling the part numbers right off the belts on mine and finding a match that way. My hoses are all in very good shape, and I don't plan on replacing those. Unfortunately, the power steering reservoir on mine got clipped short, but I can just us the one off my NA Legacy, as they are identical. As for plugs, just use the same NGK's you use on your turbo Legacy.

The USDM auto turbos got the VF-10, just like the JDM autos. The manual turbos got the VF-11 in the states. Spool up on the VF-8 should be about the same as you get now, but you will get more CFM's out of it, and the ability to make more power at the same psi setting. With the stock injectors on that engine, you should be able to run 14-15psi safely along with the AWIC. This is totally a guess, without doing any math, but I figure about 250-260 chp with just a boost controller.

Also, something to think about is that fact that your new ECU has a speed limiter set at 112mph. You might want to get rid of that if you plan on racing or anything like that...

evolutionmovement · Post by **evolutionmovement** » Sat Apr 03, 2004 11:12 pm

I'd replace the rear main oil seal as its a pain to do once its in. Maybe the cam seals while you're at it.

Steve

snowjob · Post by **snowjob** » Sun Apr 04, 2004 2:48 pm

That sounds like a good idea, Will the seals from a newer ej20t fit?? Should I be getting a clutch for a newer sube too??
Also, what is the wieght of this engine/tranny. I've got 4 of my buddies giving me a hand unloading it off a transport on Friday. Will 5 of us be able to handle it??
thanks
Snowjob

THAWA · Post by **THAWA** » Sun Apr 04, 2004 6:22 pm

according to the pdf the engine wieghs 147 kgs or about 324lbs I dunno for the tranny though.

LegacyT · Post by **LegacyT** » Sun Apr 04, 2004 6:46 pm

a 5mt tranny can be picked up by yourself, with effort. I'm guessing 150 lbs.

Mark,

evolutionmovement · Post by **evolutionmovement** » Sun Apr 04, 2004 6:52 pm

Yeah, you should have no trouble handling it - two less-than-buff guys hauled a well dressed engine from my car to my kitchen. We weren't able to clear the stairs, but walking it wasn't too bad.

Steve

snowjob · Post by **snowjob** » Tue Apr 20, 2004 4:35 pm

Well my ej20t finally arrived, and it looks soo clean, I'm very happy with it. so i've pulled some numbers off the turbo and the engine and was wondering if I could get some help understanding it.
Engine staped on the engine: ej20
numbers scribed on the block: 97bb 23232 on the other half of the block is bc97

The Turbo numbers are H5 916 b52x 20-r
I have no idea what these mean.. any ideas??
Thanks
Snowjob

Matt Monson · Post by **Matt Monson** » Tue Apr 20, 2004 5:31 pm

those are the numbers cast on the exhaust turbine. What are the numbers on the plate on the silver compressor side?

snowjob · Post by **snowjob** » Wed Apr 21, 2004 10:45 pm

Well I'm here to put all the arguments to rest. The 89-91 ej20t with silver intercooler has a VF8 Turbo on it. I'm sure this will reduce the sleepless nights for most of you, as it did mine

all I need to do is drop it in and i'm off....sounds simple enough.....yeah right...I'll keep you posted.

Matt Monson · Post by **Matt Monson** » Wed Apr 21, 2004 11:26 pm

You scored. That VF-8 can blow quite a few more CFM's than the VF-10's. When you decide to turn up the boost, you should be able to go to 260-275Chp before you need a bigger turbo!

snowjob · Post by **snowjob** » Mon Oct 11, 2004 11:11 pm

It's Alive ahaahahhahahahha It's alive.......

It came to life after I realize I had the firing order wrong on the engine. ran for a 15 seconds, but I don't have the rad hooked up so I didn't want to overhead anything. The only concern at thsi point is that the starter does not disengage and when I let the clutch out(keep in mind it's not been bled yet) thier was a destinctive bang bang bang. from the tranny. Not sure, any sugestions???
I'm happy otherwise

, until I find

Matt Monson · Post by **Matt Monson** » Tue Oct 12, 2004 8:28 pm

congrats. I think I am finally gonna get off my arse this afternoon and get my wiring sorted out.

don't know what to say about the tranny issue...

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