Welcome to the North American Subaru Impreza Owners Club Wednesday September 26, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

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 12-09-2009, 09:07 PM   #1
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default Suggestions for the build

So rather than taking on my misfire problems head on, im gonna fix it the fun way by doing a build.

I have a salvaged 03 bugeye with 34k on the car(but the motor reaks of much more mileage). I have about 2-3 grand i can throw into the block and wondering what i need to be able to run an 18g or 20g and not have it die on me.

Someone on here before talked about the 2.1L swap with the stock wrx crank, sti rods, and some custom pistons.. but im also interested to hear some other ideas.

As of right now i have a vf39, pinks, warbro 255, perrin FMIC, gm boost solenoid. Obviously the first two need to go but can i keep the last 3 with an 18g or 20g?

Any input is much appreciated guys!
* Registered users of the site do not see these ads.
yellowsubi is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-09-2009, 11:00 PM   #2
stamps31757
Scooby Newbie
 
Member#: 189810
Join Date: Sep 2008
Location: San Diego, CA
Vehicle:
2002 WRX Sedan
PSM

Default

it depends on what you want to do with the car. If you plan on any type of autox then go with the 18g. if you plan on running it down the strip then go with the 20g. Either should be great for normal driving. But my personal opinion is keep the turbo that you have and just re-enforce your internals and i think you will be plenty happy.
stamps31757 is offline   Reply With Quote
Old 12-09-2009, 11:11 PM   #3
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Sorry i should have been more specific. I want to get over 300 at the wheels, and my buddy whose doing the rebuild with me said that i should get some forged pistons, eagle rods, new bearings, and a head job. The vf39 from what ive read rarely cracks 290whp.

So im just searching for people suggestions on a +300whp setup from someone other than my buddy helping me.
yellowsubi is offline   Reply With Quote
Old 12-09-2009, 11:23 PM   #4
xsnapshot
Scooby Newbie
 
Member#: 170973
Join Date: Feb 2008
Location: nashville
Vehicle:
2004 WRX 4EAT
PSM

Default

Quote:
Originally Posted by stamps31757 View Post
it depends on what you want to do with the car. If you plan on any type of autox then go with the 18g. if you plan on running it down the strip then go with the 20g. Either should be great for normal driving. But my personal opinion is keep the turbo that you have and just re-enforce your internals and i think you will be plenty happy.
An 18G will spool almost identical to a VF39. And the 20G spool is not that far behind the 18G if they have both have TD05 hotsides.

Quote:
Originally Posted by yellowsubi View Post
Sorry i should have been more specific. I want to get over 300 at the wheels, and my buddy whose doing the rebuild with me said that i should get some forged pistons, eagle rods, new bearings, and a head job. The vf39 from what ive read rarely cracks 290whp.

So im just searching for people suggestions on a +300whp setup from someone other than my buddy helping me.
Honestly if you want to keep it between 2-3 grand, then you'll need to keep it super simple.

Just get new rods/pistons/bearings, leave the heads alone (thats big $), pay for the machining/balancing/etc.

Then likely you'll already be out of $. There's tons of little things that add up. If not out of $ then you can look into getting your new turbo and get some modded stock injectors.

Oh and your transmission will hate you for all of that
xsnapshot is offline   Reply With Quote
Old 12-09-2009, 11:27 PM   #5
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Quote:
Originally Posted by xsnapshot View Post
An 18G will spool almost identical to a VF39. And the 20G spool is not that far behind the 18G if they have both have TD05 hotsides.



Honestly if you want to keep it between 2-3 grand, then you'll need to keep it super simple.

Just get new rods/pistons/bearings, leave the heads alone (thats big $), pay for the machining/balancing/etc.

Then likely you'll already be out of $. There's tons of little things that add up. If not out of $ then you can look into getting your new turbo and get some modded stock injectors.

Oh and your transmission will hate you for all of that
Lol the tranny will be taken care of, i found a full swap from an 06sti for 3k, which isnt that bad... my friend whose helping me with the build said that the rods and pistons i could grab for around 600-700 bucks. Are the bearings/machining+balancing that much?
yellowsubi is offline   Reply With Quote
Old 12-09-2009, 11:29 PM   #6
rjburner
Scooby Newbie
 
Member#: 167014
Join Date: Dec 2007
Location: Dayton,Ohio
Vehicle:
2005 WRX
Crystal Grey Metallic

Default

For what your looking to spend you could buy an OEM STI block and bolt your WRX heads on. I think the going rate for a new shortblock is $1700'ish. Add another $400 for forged pistons and you've got a reliable 500hp shortblock. You could sell your old shortblock also....

Last edited by rjburner; 12-09-2009 at 11:40 PM.
rjburner is offline   Reply With Quote
Old 12-10-2009, 12:23 AM   #7
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Quote:
Originally Posted by rjburner View Post
For what your looking to spend you could buy an OEM STI block and bolt your WRX heads on. I think the going rate for a new shortblock is $1700'ish. Add another $400 for forged pistons and you've got a reliable 500hp shortblock. You could sell your old shortblock also....
thats what my buddy dave wants me to do, but i wanna keep the best gas mileage (23mpg for the 2.5 vs 28mpg for the 2.0L??) as i can because i take long drives up and down california (and sometimes cross country) i know its not a huge difference for the amount of power increase but i just wanna build this 2.0 then when i get tired of it a year or 2 down the road ill just sell everything and get an STi
yellowsubi is offline   Reply With Quote
Old 12-10-2009, 10:51 AM   #8
stamps31757
Scooby Newbie
 
Member#: 189810
Join Date: Sep 2008
Location: San Diego, CA
Vehicle:
2002 WRX Sedan
PSM

Default

what ever route you go your gas mileage will reflect. Thats all in how well the tuning is on the car.
stamps31757 is offline   Reply With Quote
Old 12-10-2009, 12:38 PM   #9
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Oh i just figured in general that the 2.0 could save me a little more on that, plus i didnt want to give any evo that i destroy any excuse like having a bigger motor blah blah..
yellowsubi is offline   Reply With Quote
Old 12-10-2009, 02:08 PM   #10
Finishlinewrx
Scooby Newbie
 
Member#: 175459
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: Kokomo, IN
Vehicle:
2002 18g'd Corn PWR
Midnight Black

Default

IMO for the 2.0l
Rods,Pistons,good bearings,mild cam
td05-20g
93/meth inj or e85

350-400whp

My tuner on his car was shooting for 400whp on a stock block with a 20g and meth inj. @25-26psi

build block will support that reliable.
Finishlinewrx is offline   Reply With Quote
Old 12-10-2009, 03:49 PM   #11
stamps31757
Scooby Newbie
 
Member#: 189810
Join Date: Sep 2008
Location: San Diego, CA
Vehicle:
2002 WRX Sedan
PSM

Default

Quote:
Originally Posted by Finishlinewrx View Post
build block will support that reliable.
yeap then you can start worrying about which route to go as far as transmissions.
stamps31757 is offline   Reply With Quote
Old 12-10-2009, 04:33 PM   #12
Finishlinewrx
Scooby Newbie
 
Member#: 175459
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: Kokomo, IN
Vehicle:
2002 18g'd Corn PWR
Midnight Black

Default

Quote:
Originally Posted by yellowsubi View Post
Are the bearings/machining+balancing that much?
Depends on the shop really.
200-500
Finishlinewrx is offline   Reply With Quote
Old 12-10-2009, 07:57 PM   #13
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

yeah i got my tranny search going

Thanks for the recommendation i didnt know the 2.0 could crack 400
yellowsubi is offline   Reply With Quote
Old 12-10-2009, 08:10 PM   #14
ADAS1223
Scooby Specialist
 
Member#: 159853
Join Date: Sep 2007
Chapter/Region: NESIC
Location: tri-state
Vehicle:
2005 Impreza
wrb

Default

I have a 2.0l with sti rods/JE pistons/rings/wrists pins, oem everything else. capable of 500whp and 8k. about the limit of the 2.0 open block.
ADAS1223 is offline   Reply With Quote
Old 12-11-2009, 05:25 AM   #15
stamps31757
Scooby Newbie
 
Member#: 189810
Join Date: Sep 2008
Location: San Diego, CA
Vehicle:
2002 WRX Sedan
PSM

Default

Quote:
Originally Posted by ADAS1223 View Post
I have a 2.0l with sti rods/JE pistons/rings/wrists pins, oem everything else. capable of 500whp and 8k. about the limit of the 2.0 open block.
yeah i'd love to have your setup. i could get so much more out of my 18g without worrying about the engine.
stamps31757 is offline   Reply With Quote
Old 12-11-2009, 12:59 PM   #16
04wrxhart
Scooby Newbie
 
Member#: 204246
Join Date: Feb 2009
Chapter/Region: NWIC
Location: Vancouver, Wa.
Vehicle:
2004 Impreza WRX
WRBlue

Default

Get a hta68, pistons, rods and injectors and your good to go. the HTA68 will get you above 300whp no problem and it out preforms both the 18g and 20g, atleast from what i've seen. And its cheap as hell.
04wrxhart is offline   Reply With Quote
Old 12-12-2009, 01:59 PM   #17
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Quote:
Originally Posted by 04wrxhart View Post
Get a hta68, pistons, rods and injectors and your good to go. the HTA68 will get you above 300whp no problem and it out preforms both the 18g and 20g, atleast from what i've seen. And its cheap as hell.

cheap usually means unreliable...?
yellowsubi is offline   Reply With Quote
Old 12-12-2009, 08:19 PM   #18
stamps31757
Scooby Newbie
 
Member#: 189810
Join Date: Sep 2008
Location: San Diego, CA
Vehicle:
2002 WRX Sedan
PSM

Default

its actually a really good turbo.
stamps31757 is offline   Reply With Quote
Old 12-13-2009, 04:00 PM   #19
yellowsubi
Scooby Newbie
 
Member#: 209161
Join Date: Apr 2009
Chapter/Region: BAIC
Location: San Jose, Ca
Vehicle:
ohhh four STi
mmm Forged!!

Default

Whats the going rate for a used one? Only found a couple that were kind of pricey.
yellowsubi 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
Suggestions for my build PHXSTI South West Impreza Club Forum -- SWIC 26 09-23-2009 01:49 PM
Suggestions for my build nySulli Car Audio, Video & Security 9 12-16-2008 03:57 PM
Annapolis-area folks: Looking for hotel suggestions for the meet! Siper2 Mid Atlantic Impreza Club -- MAIC 9 04-26-2007 05:20 PM
Suggestion for the "The Official For Sale Thread." Sports Wagon South East Region Forum 2 06-14-2005 09:14 AM
Suggestion For the Message Board... ASNG General Forum Archive 12 05-28-2000 12:02 AM

All times are GMT -4. The time now is 11:20 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.