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Old 07-21-2016, 08:32 AM   #1
jssme
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Default Help with new ej207/ej205 hybrid build

Hi guys, first post here so go easy on me please! :P

I have a "stock" 02 bugeye wrx which recently spun a bearing. i ended up going all out and getting a factory built ej207 short block, getting my ej205 heads reconditioned, getting a new sump/baffle/pickup and other various hoses

im having some issues with some block differences.

my motor looks like this:


whereas the replacement looks similar to this


note the hose mount in front of the bell housing just off centre? what is this and what do i do with it?

any help would be much appreciated
thanks
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Old 07-21-2016, 10:15 AM   #2
monkeyposeur
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03 WRB GD 205/22T 20G-XT

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It's an extra crankcase breather/pcv connection that is found STi motors. You can just cap it and forget about it. You don't have the ports on the heads to connect it and some STi builds delete it. Or you can run it to a catchcan, t into other lines, etc.

http://forums.nasioc.com/forums/show....php?t=1977948
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Old 07-21-2016, 06:24 PM   #3
jssme
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Another question.. may not be answerable but...

I have a rogue hose... can't figure where it goes.
Does anyone by chance recognise this hose?


sorry for the rookie questions...
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Old 07-21-2016, 08:42 PM   #4
Titter
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2002 WRX Wagon
EJ207 Spec C 4EAT

Default Help with new ej207/ej205 hybrid build

that new block pictured is an open deck. i dont think you have a 207 there friend. iirc EJ207's are semi-closed decks as of 2001.
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Old 07-21-2016, 08:46 PM   #5
jssme
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that photo was for demonstration purposes only as i couldn't find a photo of mine until now:

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Old 07-21-2016, 11:28 PM   #6
monkeyposeur
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Quote:
Originally Posted by jssme View Post
Another question.. may not be answerable but...

I have a rogue hose... can't figure where it goes.
Does anyone by chance recognise this hose?


sorry for the rookie questions...
Looks like it could be the brake master cylinder hose that connects to the right side of the intake manifold. But on my 03 WRX it has stronger spring clamps.


Check out opposedforces.com. There are diagrams of pretty much everything.
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Old 07-22-2016, 01:05 AM   #7
jssme
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no i still have that one hooked up to the master cylinder unfortnately... maybe it can just stay off...
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Old 07-22-2016, 07:16 AM   #8
no694terry
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Quote:
Originally Posted by Titter View Post
that new block pictured is an open deck. i dont think you have a 207 there friend. iirc EJ207's are semi-closed decks as of 2001.
v5/v6 refered to their STi motors as ej207's, forged slugs but still open deck. Semiclosed came in v7+

i dont think that pic is even a 2.0. it has the skinnier sleeve to block side tabs found on later 2.5's, but i dont know any open deck blocks that had the extra breather. ej254 maybe?

Last edited by no694terry; 07-22-2016 at 07:25 AM.
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Old 07-22-2016, 07:44 AM   #9
svynx
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That hose could easily be from one of the breather ports on the heads.

And I agree with terry. If you have a micrometer, take a measurement of the bore. That will eliminate all doubt on the block being a 2.0/2.5.



LOL, or get a pic of the stamp that's on the block...
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Old 07-22-2016, 08:05 AM   #10
Bo0stcreep
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Quote:
Originally Posted by no694terry View Post
v5/v6 refered to their STi motors as ej207's, forged slugs but still open deck. Semiclosed came in v7+

i dont think that pic is even a 2.0. it has the skinnier sleeve to block side tabs found on later 2.5's, but i dont know any open deck blocks that had the extra breather. ej254 maybe?
The ej20x/y had the extra breather looks kinda similar to the picture
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Old 07-22-2016, 08:15 AM   #11
Bo0stcreep
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Quote:
Originally Posted by jssme View Post
Hi guys, first post here so go easy on me please! :P

I have a "stock" 02 bugeye wrx which recently spun a bearing. i ended up going all out and getting a factory built ej207 short block, getting my ej205 heads reconditioned, getting a new sump/baffle/pickup and other various hoses

im having some issues with some block differences.

my motor looks like this:

whereas the replacement looks similar to this


note the hose mount in front of the bell housing just off centre? what is this and what do i do with it?

any help would be much appreciated
thanks
Can you take a picture of the top of the piston, if it is the ej20x/y there will be little to no dish in the piston
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Old 07-22-2016, 11:00 PM   #12
jssme
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the top of the block says ej20. i have already put the heads on and most other parts. at this point im going to leave it off and double check at the end of the build
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Old 07-23-2016, 06:46 AM   #13
Bo0stcreep
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Careful when tuning it then, the ej20x/y only says ej20 on the block, has the added breather, but it also has any where's from 9:1 to 9.5:1 compression. The piston would have had 0 dish and just the valve reliefs cut. If I'm feeling ambitious enough later I'll pull the heads off the ej20x I have and post a picture
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Old 07-23-2016, 08:50 AM   #14
no694terry
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His block is a ej207, the pic about was a sample we missed
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Old 07-24-2016, 05:22 AM   #15
jssme
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Quote:
Originally Posted by no694terry View Post
His block is a ej207, the pic about was a sample we missed
yeah sorry aboutt hat, should have mentioned that in the post. couldn't find a pic at the time
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Old 08-02-2016, 09:32 PM   #16
jssme
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Thought I'd post a quick update,

The build is done! the car is running smoothly and i am stoked!! now for the run in....
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