Welcome to the North American Subaru Impreza Owners Club Wednesday July 30, 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 02-16-2013, 10:20 AM   #1
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default Ej205 build just started

So I'm gonna build a ej205. I'm pretty new to the forum but have been trolling the built motor section reading all the stickies and 2l builds I can.
To start off I bought on an eBay auction a set of eagle rods and arias pistons new in box for $375 shipped which is a crazy good deal. My buddy gave me a short block that spun the number 3 rod bearing. Here lies my first question should I replace my crank or have it turned down and go with a larger bearing. The cost of a new oem crank is $350. The cost of turning it down is $100. Has anyone gone this route?

I'm aiming to make around 350 hp. And I know everyone is gonna say just buy the jdm v7 swap because it can make that power but that's not the route I wanna go.

Parts I have so far

Eagle rods
Arias pistons 92.5mm 8.7:1
Bloush 20g
King main bearings
Killer b oil pickup


Parts I'm planning on
Bc 272 cams
Bc valve springs
New stock size valves
New gasket kit


My car already has
Agency power exhaust
Tsudo Catless downpipe
Perrin up pipe
Spt cold air
Cobb access port
Deatschwerks 650cc injectors
Deatschwerks 255 fuel pump
Vf39 turbo

Suggestions would be great and let's keep the v7 swap out of this please
* Registered users of the site do not see these ads.
Nick_P_ is offline   Reply With Quote
Old 02-16-2013, 12:53 PM   #2
Paul
Scooby Guru
 
Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

get a new crank dont mess with turning one.

Couple things I didnt see on your list:
Rod bearings
Oil pump
Oil cooler
Timing kit w/ pulley
Maybe shimless buckets for the heads if you plan on reving it out much past 7k. Shim over bucket came in 02 and most 03 WRXs
Paul is offline   Reply With Quote
Old 02-16-2013, 01:07 PM   #3
theotherguy
Scooby Specialist
 
Member#: 191514
Join Date: Oct 2008
Chapter/Region: NWIC
Location: teh bremerton
Vehicle:
'05 FXT 6spd, 98
Fozzy lifted,'01 RS 6spd

Default

Personally, I don't have a problem with a ground crank and but you may be better off with one of the newer crossdrilled cranks at the power levels you're looking for.
theotherguy is offline   Reply With Quote
Old 02-16-2013, 01:35 PM   #4
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

What's the cost of a cross drilled crank I don't think I wanna spend a $1000 on a crank to be honest. My 2003 wrx doesn't have an oil cooler. I know this because when I did my timing belt and water pump the new gates kit water pump had the bung for it and I had to cap it off. Also at full operating temp an oil cooler is pretty ineffective. As for rod bearings kinda gotta wait on those until my crank issue is settled. What's the best oil pump to go with dollar for dollar?
Nick_P_ is offline   Reply With Quote
Old 02-16-2013, 04:07 PM   #5
theotherguy
Scooby Specialist
 
Member#: 191514
Join Date: Oct 2008
Chapter/Region: NWIC
Location: teh bremerton
Vehicle:
'05 FXT 6spd, 98
Fozzy lifted,'01 RS 6spd

Default

The cross drilled cranks are oem ej205 04+. $350 or so.
theotherguy is offline   Reply With Quote
Old 02-16-2013, 05:35 PM   #6
Paul
Scooby Guru
 
Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

Quote:
Originally Posted by Nick_P_ View Post
What's the cost of a cross drilled crank I don't think I wanna spend a $1000 on a crank to be honest. My 2003 wrx doesn't have an oil cooler. I know this because when I did my timing belt and water pump the new gates kit water pump had the bung for it and I had to cap it off. Also at full operating temp an oil cooler is pretty ineffective. As for rod bearings kinda gotta wait on those until my crank issue is settled. What's the best oil pump to go with dollar for dollar?

The oil cooler is what the oil filter screws into. The only reason I said to replace that is cause of the bearings that went thru the motor. You can try and clean it out but people have def lost motors going that route and its not something Id risk.


Best oil pump for you will be the 10mm subaru pump most likely

People have turned cranks and used oversized bearings but when its all said and done you save maybe $200 and w/ a 20g IDK if I'd risk it.
Paul is offline   Reply With Quote
Old 02-16-2013, 09:54 PM   #7
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

Okay so I'll buy a new 04 crank then and the 10mm pump. I've built some Chevy v8s and a lot of Honda motors but I'm gonna leave the assembly of this motor to my local subaru speed shop
Nick_P_ is offline   Reply With Quote
Old 02-16-2013, 10:03 PM   #8
Paul
Scooby Guru
 
Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

if you have a dial bore gauge and some Mics I'd assemble it yourself.

If you do have a shop do the assembly, a vendor off of here will be your best bet!
Paul is offline   Reply With Quote
Old 02-16-2013, 11:30 PM   #9
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

Here In Tacoma Washington we have a mainly subaru shop called pacific import auto they do big builds and every thing subaru down to dyno tuning. I have all the stuff but I'm a bit scared of assembling it without someone who's done it before.
Nick_P_ is offline   Reply With Quote
Old 02-17-2013, 12:37 AM   #10
wrx1392
Scooby Newbie
 
Member#: 342331
Join Date: Jan 2013
Location: tehachapi Ca.
Vehicle:
2003 wrx
blue

Default

get the 2005 WRX cross drilled crank pm me i got one for $310 ish .also the oil pan is a B to clean out all the metal from spun bearing .but yeah new oil cooler ,oil pump. with a used block you might want to try some cosworth +.001 main bearings or you might not get the bearing clearance right .you'll need mics too to measure this stuff.dont ask me how i know this i learned the hard way ..oh and use an oem gasket set USE oem o-rings in the block halfs ...also dont ask me about that either good luck with the build ....these motors are a different animal so if this is your first motor build get some help and find a machine shop that knows how to work on Subies. and hang on to your wallet $4,000 goes fast.and that was me doing all the labor
also id use the 16gxt for a faster spool .dont think you need cams to get to 350 hp at the crank. 8.7 CR is a tad high also so a 16 gxt should get it done. i think Maxwell power is up in your neck of the woods he has a program where you help build the motor under his watchful eyes....i think he does that shoot him a pm .he know his stuff.

Last edited by wrx1392; 02-17-2013 at 12:46 AM.
wrx1392 is offline   Reply With Quote
Old 02-17-2013, 04:55 AM   #11
cosseywrx
Scooby Specialist
 
Member#: 276443
Join Date: Mar 2011
Chapter/Region: TXIC
Location: Abilene, TX
Vehicle:
2005 2.1 stroker WRX
OBP

Default

Dont really need cams. Im making 300whp on a 2.1l stroker on 16psi 18g turbo. Winter tune
cosseywrx is offline   Reply With Quote
Old 02-17-2013, 11:03 AM   #12
theotherguy
Scooby Specialist
 
Member#: 191514
Join Date: Oct 2008
Chapter/Region: NWIC
Location: teh bremerton
Vehicle:
'05 FXT 6spd, 98
Fozzy lifted,'01 RS 6spd

Default

You can't go wrong with PIA or Maxwell, except I don't think Maxwell will let you use your used parts. Its top of the line new or nothing, you get what you pay for in quality.
If PIA is going to assemble I'd drop it all off and let them do the machine work, etc. They might like it done by their own machine shop to their specs.
Keep the oil cooler delete, no point in getting another one.
Only thing I'd be concerned with is your 650cc injectors. On our built ej205 with a gt3071r at 26 psi, we were hitting 76% injector duty cycle on modded light blues, 820cc.
We also had stock cams, fell off on the top end a little but not enough to care.
Good luck with the build
theotherguy is offline   Reply With Quote
Old 02-17-2013, 02:57 PM   #13
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

The only used parts I have are the block and crank everything else is new in box
Nick_P_ is offline   Reply With Quote
Old 02-17-2013, 07:23 PM   #14
cosseywrx
Scooby Specialist
 
Member#: 276443
Join Date: Mar 2011
Chapter/Region: TXIC
Location: Abilene, TX
Vehicle:
2005 2.1 stroker WRX
OBP

Default

New crank man. No point in using a used one
cosseywrx is offline   Reply With Quote
Old 04-10-2013, 12:09 PM   #15
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

Just a little update. My block is currently in the shop getting all the machine work done. I should have it back in a few weeks. Then ill start the assembly process!
Nick_P_ is offline   Reply With Quote
Old 04-10-2013, 02:02 PM   #16
mash740
Scooby Newbie
 
Member#: 310419
Join Date: Feb 2012
Chapter/Region: Tri-State
Location: Ohio
Vehicle:
2002 wrx
Blue

Default

I don't see the reason to buy a new crank, I myself got my crank grinded and balanced. I wouldn't waste your money.
mash740 is offline   Reply With Quote
Old 04-20-2013, 12:48 PM   #17
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

I bought a amr cxr750 turbo I got a awesome deal on it. But I'm a little concerned that its way to big for a 2.0. Anyone ever ran this turbo on a 2.0?
Nick_P_ is offline   Reply With Quote
Old 04-21-2013, 12:48 AM   #18
kilgore
Scooby Newbie
 
Member#: 267768
Join Date: Dec 2010
Location: Coweta, OK
Vehicle:
2003 Impreza WRX
Sonic Yellow

Default

80lbs a minute, that's a big snail. The 35r flows 65lbs and those are rather large on a 2.0.
kilgore is offline   Reply With Quote
Old 07-08-2013, 03:36 PM   #19
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

Started assembly today on the short block. Measured everything out with bore gauge and calipers. Standard size bearings are what I came up with. Also decided to platicgage the bearings also and came out in spec! Dropped my heads off to be machined this morning also shoul have those back next week sometime.
Nick_P_ is offline   Reply With Quote
Old 09-04-2013, 12:56 PM   #20
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

Heads are all finished and my crower cams are installed also. Anyone have any cam lifter buckets laying around? I need these sizes 494, 456, 498, 478, 474, 483x3, 458x3, 490x2, 486x3
Nick_P_ is offline   Reply With Quote
Old 09-04-2013, 12:58 PM   #21
Nick_P_
Scooby Newbie
 
Member#: 343384
Join Date: Jan 2013
Chapter/Region: NWIC
Location: Olympia, WA
Vehicle:
2003 Impreza wrx
Black

Default

I also sold the amr and picked up a more manageable fp18g and a grimmspeed up pipe with a tial 44mm ewg
Nick_P_ 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


All times are GMT -4. The time now is 10:37 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.