Welcome to the North American Subaru Impreza Owners Club Friday August 29, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Built Motor Discussion

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-25-2007, 09:42 AM   #1
lgt2000
Scooby Newbie
 
Member#: 140073
Join Date: Feb 2007
Chapter/Region: South East
Location: NC
Vehicle:
2005 LGT
Red

Default EJ257 Hybrid

Hey guys,

The headgasket on my 2000 Legacy GT with EJ251 SOHC engine is done. Since I have to rip the engine apart I figured I would get something stronger.

Here is the plan:

Keep my stock heads, maybe send them out for Port and Polish.

Picked up an EJ257 shortblock with a bad piston, get it honed then put in new stock pistons.

Pick up stock STI head gasket and head bolts

Put everything together, and bolt up stock WRX turbo components that I have.

Tune everything with emanage.

Upgrade to VF39 later on.

What do you guys think, this is my first engine build of any kind so I would like some advice, is there anything else that needs to be done?
* Registered users of the site do not see these ads.
lgt2000 is offline   Reply With Quote
Old 08-27-2007, 12:21 AM   #2
SiouxBe1
Scooby Newbie
 
Member#: 157247
Join Date: Aug 2007
Chapter/Region: RMIC
Location: Boulder, CO
Vehicle:
1991 Legacy L+AWD BJ
White

Default

What is your Goal?
Do you wanna keep the same MPG?
Or, do you wanna boost it?
SiouxBe1 is offline   Reply With Quote
Old 08-27-2007, 12:38 AM   #3
lgt2000
Scooby Newbie
 
Member#: 140073
Join Date: Feb 2007
Chapter/Region: South East
Location: NC
Vehicle:
2005 LGT
Red

Default

its going to be boosted with a stock wrx turbo for the moment, and my current goal is 200 WHP, then will upgrade to VF39 and goal will be 250HP, dont care about MPG
lgt2000 is offline   Reply With Quote
Old 08-27-2007, 10:01 PM   #4
fishheadback
Scooby Specialist
 
Member#: 68120
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: KANSAS!!!
Vehicle:
1998 RS 2.0 vf23 STi
& MK6 GTI

Default

Impact screwdriver with a BIG phillips to take off the access plates to get to the 14mm allen plugs, a 14mm allen wrench to get out the plugs to get to the wrist pins, and some cleaned up and custom bent welding rods to take out the wrist pins out.

Have fun
fishheadback is offline   Reply With Quote
Old 08-27-2007, 10:05 PM   #5
LiquidForce
Scooby Specialist
 
Member#: 12811
Join Date: Nov 2001
Chapter/Region: South East
Location: Roswell Ga
Vehicle:
2002 2.5l Wrx
517whp/516wtq (Stage pi)

Default

Check with Ron at Axis for stock sti pistons. He gave me a very reasonable deal on some new pistons that he had swapped out of a new block.
LiquidForce is offline   Reply With Quote
Old 08-27-2007, 10:38 PM   #6
SiouxBe1
Scooby Newbie
 
Member#: 157247
Join Date: Aug 2007
Chapter/Region: RMIC
Location: Boulder, CO
Vehicle:
1991 Legacy L+AWD BJ
White

Default

Looks like a good plan...go for it!
SiouxBe1 is offline   Reply With Quote
Old 08-28-2007, 08:48 AM   #7
lgt2000
Scooby Newbie
 
Member#: 140073
Join Date: Feb 2007
Chapter/Region: South East
Location: NC
Vehicle:
2005 LGT
Red

Default

Here is what the full setup will look like, all the stuff in bold I have already acquired:

The Engine:

EJ257 Shortblock from 07 STI
Cometic STI Head Gasket
ARP Head Studs
Stock SOHC Heads
Should yield about 8.7:1 from what I was told

The FI:
-WRX TD04 Turbo
-WRX Uppipe
-WRX Downpipe
-WRX Heatshields

-WRX Crossmember
-WRX Oil Pan
-WRX Fuel Rail
-WRX Injectors
-WRX TMIC
-WRX Fuel Pump
-WRX Water Pump
-STI Exhaust Manifold
-STI Exhaust
-HKS BOV
-GReddy eManage Blue w/injector and ignition harnesses
-GReddy Profec Boost Controller

-Oil Lines
-Coolant Lines
-Various Gaskets
-Custom Piping from DP to Muffler

My goal is to run the stock 10 PSI for now, which I think should yield me 210-230 whp, once I get everything stable I will upgrade to the VF39 or something bigger and shoot for 300+ whp
lgt2000 is offline   Reply With Quote
Old 09-13-2007, 08:45 AM   #8
lgt2000
Scooby Newbie
 
Member#: 140073
Join Date: Feb 2007
Chapter/Region: South East
Location: NC
Vehicle:
2005 LGT
Red

Default

got new STI pistons in the mail yesterday, and put down a deposit on an EJ257 block with one bad piston, will pick up soon. Are there any good threads on a diy engine build since this is the first time I will be tackling something like this.
lgt2000 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
EJ257 hybrid, jdm seats, Perrin CAI, WRX driveshaft, rear axles, door cards/rear seat annointed Private 'For Sale' Classifieds 15 11-28-2005 10:59 AM
EJ257 hybrid oil pump question sheikthin Factory 2.0L Turbo Powertrain 3 09-28-2005 03:03 PM
My EJ257 Hybrid MY98 RS wont start!!! turboed22 Service & Maintenance 1 08-11-2005 05:01 PM
ej257 hybrid question! scoobyimpreza Pre-2002 Factory Turbo Powertrain 19 02-07-2005 02:51 PM
EJ257 hybrid possible headgasket trouble john banks Factory 2.5L Turbo Powertrain 86 03-25-2004 12:18 PM


All times are GMT -4. The time now is 09:32 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.