Is an 08 Forestor Turbo shortblock same as STI??

[KB'izzle]

I was thinking of building one & am wondering if anyone truely knows if its all the same stuff? From what Ive been told its 500 cheaper from the dealer, but ALL im using is the case & putting sti internals & forged pistons in the 2 block halves. I was told all the part #'s for parts inside were the same, but I really just need to be %100 sure

Im getting half people saying one thing & half saying the other

* Registered users of the site do not see these ads.

[teiva-boy]

Wirelessly posted (Opera/9.80 (J2ME/MIDP; Opera Mini/4.2.14912/1280; U; en) Presto/2.2.0)

Short block sure. No advantages to the sti part #

[theotherguy]

'08 forester xt has the same shortblock as the legacy gt, 2008+ wrx. Crank and rods have the same part numbers as an 04-07 sti but pistons are different.

[Concillian]

From the info available here on Nasioc, the only difference between the STi block and the other blocks are a small difference in dish volume in the pistons.

If you're replacing the pistons, there is going to be zero difference.

[KB'izzle]

^^ yes, the pistons are going to be replaced & I am not buying this new, just a deal on an old shortblock from an 08 forester. that spun a bearing


ANY1 have any other sti or same shortblock cores thats not in bad shape? like spun a bearing, even if its just the 2 block halves, please let me know, would rather not use or take/ buy anything thats in bad shape (like a cracked cyl wall) thats a little too much work I dont feel like doing (replacing the sleeve)

thank you

[scramjett]

So what does it mean when a "Specialist" has a fundemental question about short blocks? NASIOC must be giving away that designation like the swine flu!

[sidewayz]

^^ wait till a guru come in and asks a question

[Byzantium]

An EJ255 block will not be $500 cheaper than an EJ257 block. Hell, there difference between an EJ205 and EJ257 is only $300. Expect prices to be the same or within ~$50.

Put whoever told you that in time out.

[KB'izzle]

bump!

[wrxtremeWGN]

Originally Posted by scramjett

So what does it mean when a "Specialist" has a fundemental question about short blocks? NASIOC must be giving away that designation like the swine flu!

your a ra-tard. it has nothing to do w/ knowledge, just # of posts. he could just post 1000s of dumb questions/answers like yours..

for the OP, 04-05 fxt shortblocks are ej257s same as the sti.

[sidewayz]

Originally Posted by wrxtremeWGN

your a ra-tard. it has nothing to do w/ knowledge, just # of posts. he could just post 1000s of dumb questions/answers like yours..

for the OP, 04-05 fxt shortblocks are ej257s same as the sti.

ummm..no EJ255..

[Byzantium]

Originally Posted by sidewayz

ummm..no EJ255..

'05 Legacy GTs have an EJ257 short block as well.

[sidewayz]

EJ255
DOHC turbocharged, with sodium-filled valves originally designed for North American market, now sees usage in some European Imprezas and Legacies destined for Australia and South Africa. Power 230-265 hp

Usage in North America:

Impreza: 2006 - present
Forester: 2004 - present
Legacy/Outback: 2005 - present
Baja: 2004 - 2006
Usage in the rest of the world:

Legacy/Outback: 2005 - present
Impreza: 2006 - present

/end

[sidewayz]

DOHC 16 valve turbo. Originally designed for the North American Impreza STI in 2004 with AVCS and DBW. Not the same exact shortblock as EJ255. The EJ255 has a different domed piston vs the EJ257. Subaru of America designates the same part numbers for an EJ255 shortblock, and EJ257 shortblock with the exception of the pistons.

Usage:

US Market Impreza WRX STi MY04~MY07 (300 hp, 293 hp (New SAE standard))
US Market Impreza WRX STI MY08~MY10 (305 hp (New SAE standard))
Asian, European Market Impreza WRX STi 05~present (280 hp, 40KGh/m)
JDM Forester STI MY05~present

[Byzantium]

Yet, they still have EJ257 shortblocks.

[Merp]

http://forums.nasioc.com/forums/show....php?t=1667168

This really ought to be a sticky.

There are two variants of the EJ255 shortblock. The first EJ255 shortblock used in the 05/06 Legacy GT, 04/05 *CORRECTED* Forester, and the Turbo Baja is identical to the EJ257 shortblock.

Thus you want to avoid grouping all EJ255 motors together, as the statements saying such would be incorrect. The correct way would be to either indicate the SB number 10103xxyyy.

/thread.

[Arthrogrian19]

The 04/05 FXTs have the EJ257 block, but it's labeled "EJ255".

The 06+ FXTs have the same block as the 06+ WRX, the EJ255.

http://www.subaruforester.org/vbulle...-06-fxt-42549/

http://forums.nasioc.com/forums/show....php?t=1667168

http://www.subaruforester.org/vbulle...a-forum-33387/

[KB'izzle]

the block I currently have in my possesion is off an 08 forester sport, that is the fxt isnt it? 2.5L turbo obviously

still trying to figure out if there is any differences with me buiding this up, Ive heard if im replacing the pistons (w forged) then everything else is the same, its just the bare case I have, no internals what-so-ever

EJ255?

or exact same as sti?

[Byzantium]

Same.

Might want to change your sig/vehicle description. You're not making 500 whp.

[KB'izzle]

^^?? You might wanna ask b4 assuming. Its all good tho, not too hard to believe, the just about 400whp was on 91 oct alone 23psi

30r stock motor/clutch 11.2/127 1.60 60's made 484.7whp/496.6tq on 27psi c-16 , I can say 500whp cuz at one point while tuning it was up to 530whp before it was backed down for all the stock parts (motor/trans/clutch) clutch never slipped once

[KB'izzle]