Welcome to the North American Subaru Impreza Owners Club Thursday June 24, 2021
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 12-01-2020, 01:50 AM   #1
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default 2015 STI build

Hello everyone! Not sure if this is the right place to start a build thread or the power proven section(mods move if needed but I felt the built motor discussion section would be more appropriate). Anyway, a while ago my brother ended up acquiring a 2015 sti that was mostly stock with the exception of an Invidia catless downpipe. A long time before him getting this car I got into tuning and subaru was my learning platform, doing it as a hobby over time my tuning experience has advanced and because of that my brother was looking out for an sti. After getting this car I quickly checked the map and found it was stock, so after getting a wideband I did a quick stage2 tune on it and it didn't make super high numbers but it was a safe tune. After owning the car for a while and getting bored of low power he ended up getting more mods which included an FP Red turbo(older 35r compressor wheel with the antisurge cover) and other supporting mods with full 3" exhaust and an external wastegate and enough fuel system to support 500whp on pump gas. So we installed everything and started getting the car dialed in and on the third revision it spun a bearing after letting off. So we were really upset about the whole situation as that last pull was super conservative, running about 17psi with not very much timing and flat 11 afr. Got the car towed and parked it for A LONG time, honestly I don't remember the last time it ran. After about a year of the car being parked we finally yanked the block out and to our surprise we found out it was an outfront grocery getter series block, both of us were really upset that it spun a bearing being that it was already built and the fact that in my brothers ownership the vehicle was always regularly maintained and always used good oil. After splitting the block we found out that it obviously spun a rod bearing, and all bearing wear looked really bad and uneven on the main bearings to the point that one of the main bearings lost tension hard to say why it had that kinda bearing wear but at this point we were bummed out because the block was already bored out to 99.75 and our hope was that it was a stock block so we can get 99.75 pistons and decent rods and have the case halves closed decked. However if we were to do that with the block we have we would have to bore it out to the next size up which is 100mm and both of us felt like its sketchy to run that size because cracking a liner is something we were trying to avoid. So anyway my brother considered getting a whole new closed deck short block from outfront but that didn't work out, he also considered the IAG route as well but we figured why not be different and sleeve the block. A friend of mine who I regularly tune has been working with a local machine shop who has experience with darton sleeves on the ej engines as well as other platforms so after getting in touch with the machine shop and having him inspect the case halves we decided to proceed and start gathering a parts list. So this brings us to today, since RealStreet was having a black friday sale my brother made a huge purchase, parts list and part numbers as follows:

Bottom end

Pistons
JE Ultra series pistons 99.5mm 8.5:1cr 361327

Rods
Brian Crower forged I beam rods 130.5mm with 625 fasteners BC6606

Crank
OEM subaru 79mm ej257 crank shaft 12200AA430

Sleeves
Darton dry sleeves 300-031-3

Heads

Cams
GSC S2 Dual AVCS cams 7026S2

Intake valves
GSC Chrome polished stainless steel +1mm 2014-1

Exhaust valves
GSC Super alloy exhaust valves +1mm 2017-1

Valve springs and retainers
GSC Beehive valve springs and retainers 5043

Head studs
IAG performance ARP2000 14MM head studs IAG-ENG-1711

Head Gasket
Currently thinking of using a JE Proseal with copper orings
* Registered users of the site do not see these ads.

Last edited by alexmartynyuk; 05-20-2021 at 01:49 AM.
alexmartynyuk is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 12-01-2020, 01:50 AM   #2
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

The machine shop I will be working with is called G&A cylinder heads and is located in Portland Oregon. This machine shop is currently working on a closed deck solution for ej engines so depending on if they offer that service by the time we are going to have this block machine we may be doing the closed deck along with the darton sleeves. I must also add that this block will be getting the mains pinned by this machine shop as well as get line bored as well.
alexmartynyuk is offline   Reply With Quote
Old 12-01-2020, 01:56 AM   #3
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Reserved for the future.
alexmartynyuk is offline   Reply With Quote
Old 12-01-2020, 01:58 AM   #4
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Is there a way to embed pictures? Photobucket no longer hosts for free, imgur is no longer either. I would like to upload pictures to keep on the forum for as long as possible.
alexmartynyuk is offline   Reply With Quote
Old 12-01-2020, 06:10 AM   #5
Zak6182
Scooby Newbie
 
Member#: 481754
Join Date: Feb 2018
Location: Beaufort, SC
Vehicle:
2017 STi Base
Black

Default

Click on "Images" at the top of this page. Once you have everything setup and your pictures uploaded, select the images you want by clicking the box in the right corner of the picture (see #1 below). Then action (#2) and get embeded codes (#3) and then click copy. Then paste into the forum and the images will show up without having to click the link. At least that's the way I do it.
Zak6182 is offline   Reply With Quote
Old 03-06-2021, 03:15 AM   #6
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Quote:
Originally Posted by Zak6182 View Post
Click on "Images" at the top of this page. Once you have everything setup and your pictures uploaded, select the images you want by clicking the box in the right corner of the picture (see #1 below). Then action (#2) and get embeded codes (#3) and then click copy. Then paste into the forum and the images will show up without having to click the link. At least that's the way I do it.
Thank you, tried this for the first time today lol. Just an update on the build. My brother purchased all the parts on black friday, unfortunately the vendor sold out of the cams and rods we ordered so fast that they were not able to update their inventory on time. We have everything but the connecting rods which we had to wait on because they make them in large batches due to their heat treating process and BC just got their batch filled so we should be receiving them this month. After we have that then we will start looking things over and start visiting our machine shop. Will update the thread as we make some progress.
alexmartynyuk is offline   Reply With Quote
Old 04-27-2021, 02:22 AM   #7
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Well since my brother has most of the parts for the build I started working on the block today. I am going to modify certain areas of the oil galleys where it does not interfere with even distribution since I'm doing this by hand. I'm hoping that every little modification will help in some way with better oiling, it certainly will not hurt anything.

The block before I touched it with a carbide burr.


You can tell there is a small lip/ledge at this port where the oil galley goes to the oil filter. This is what it looks like before I touched it.


Also where the oil pump sucks oil from the pickup tube, you can tell there is a ledge/lip as well, this is a before picture.
alexmartynyuk is offline   Reply With Quote
Old 04-27-2021, 02:24 AM   #8
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

By the way if anyone does any DIY porting and is looking for good carbide burrs, I got some of mine from Headgames. The ones I got from them are for cutting aluminum only, and man do they cut nice and leave a very nice surface finish.
alexmartynyuk is offline   Reply With Quote
Old 04-27-2021, 11:05 PM   #9
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Here is that oil galley after a little grinding



Same galley different angle

alexmartynyuk is offline   Reply With Quote
Old 05-20-2021, 01:57 AM   #10
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Some more pictures of the ported oil galleys










Last edited by alexmartynyuk; 05-31-2021 at 04:49 AM.
alexmartynyuk is offline   Reply With Quote
Old 05-20-2021, 02:08 AM   #11
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

While I am waiting on new case bolts which by the way going with stock bolts not arp gonna blast the oil galleys with a pressure washer for a couple of hours to make sure they are somewhat clean before we take the case halves to the machine shop.
alexmartynyuk is offline   Reply With Quote
Old 05-31-2021, 04:53 AM   #12
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Degreased the block and blasted the oil galleys with the pressure washer and boxed the case halves. Gonna take it to the machine shop hopefully next week.





alexmartynyuk is offline   Reply With Quote
Old 06-09-2021, 02:22 AM   #13
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Finally took the pile to the machine shop

alexmartynyuk is offline   Reply With Quote
Old 06-09-2021, 08:51 AM   #14
Karlot
Scooby Newbie
 
Member#: 339923
Join Date: Dec 2012
Location: Gainesville, VA
Vehicle:
2006 Impreza WRX STi
grey

Default

nice. what are the plans for the entire build? still plan on the fp turbo or going with something else?
Karlot is offline   Reply With Quote
Old 06-09-2021, 02:07 PM   #15
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Quote:
Originally Posted by Karlot View Post
nice. what are the plans for the entire build? still plan on the fp turbo or going with something else?
Fp red will be used until its broken in then we will build our own twin scroll kit for an EFR series or maybe one of the precision offerings.
alexmartynyuk is offline   Reply With Quote
Old 06-09-2021, 03:10 PM   #16
Karlot
Scooby Newbie
 
Member#: 339923
Join Date: Dec 2012
Location: Gainesville, VA
Vehicle:
2006 Impreza WRX STi
grey

Default

Quote:
Originally Posted by alexmartynyuk View Post
Fp red will be used until its broken in then we will build our own twin scroll kit for an EFR series or maybe one of the precision offerings.
very nice. be sure to keep this thread updated. i'm subscribed and very interested to see where it goes lol. love being able to see other people's builds
Karlot is offline   Reply With Quote
Old 06-10-2021, 03:23 AM   #17
alexmartynyuk
Scooby Specialist
 
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:
2005 EVO VIII
@boost_reality

Default

Quote:
Originally Posted by Karlot View Post
very nice. be sure to keep this thread updated. i'm subscribed and very interested to see where it goes lol. love being able to see other people's builds
Yeah now that we finally got the ball rolling on this project I will update the thread as we make progress. I need to rip the guts out of the heads so that the guides can be pressed out before I start porting it.
alexmartynyuk is offline   Reply With Quote
Old 06-10-2021, 05:18 PM   #18
Ebradley
Scooby Newbie
 
Member#: 524800
Join Date: Jun 2021
Default

Quote:
Originally Posted by alexmartynyuk View Post
Hello everyone! Not sure if this is the right place to start a build thread or the power proven section(mods move if needed but I felt the built motor discussion section would be more appropriate). Anyway, a while ago my brother ended up acquiring a 2015 sti that was mostly stock with the exception of an Invidia catless downpipe. A long time before him getting this car I got into tuning and subaru was my learning platform, doing it as a hobby over time my tuning experience has advanced and because of that my brother was looking out for an sti. After getting this car I quickly checked the map and found it was stock, so after getting a wideband I did a quick stage2 tune on it and it didn't make super high numbers but it was a safe tune. After owning the car for a while and getting bored of low power he ended up getting more mods which included an FP Red turbo(older 35r compressor wheel with the antisurge cover) and other supporting mods with full 3" exhaust and an external wastegate and enough fuel system to support 500whp on pump gas. So we installed everything and started getting the car dialed in and on the third revision it spun a bearing after letting off. So we were really upset about the whole situation as that last pull was super conservative, running about 17psi with not very much timing and flat 11 afr. Got the car towed and parked it for A LONG time, honestly I don't remember the last time it ran. After about a year of the car being parked we finally yanked the block out and to our surprise we found out it was an outfront grocery getter series block, both of us were really upset that it spun a bearing being that it was already built and the fact that in my brothers ownership the vehicle was always regularly maintained and always used good oil. After splitting the block we found out that it obviously spun a rod bearing, and all bearing wear looked really bad and uneven on the main bearings to the point that one of the main bearings lost tension hard to say why it had that kinda bearing wear but at this point we were bummed out because the block was already bored out to 99.75 and our hope was that it was a stock block so we can get 99.75 pistons and decent rods and have the case halves closed decked. However if we were to do that with the block we have we would have to bore it out to the next size up which is 100mm and both of us felt like its sketchy to run that size because cracking a liner is something we were trying to avoid. So anyway my brother considered getting a whole new closed deck short block from outfront but that didn't work out, he also considered the IAG route as well but we figured why not be different and sleeve the block. A friend of mine who I regularly tune has been working with a local machine shop who has experience with darton sleeves on the ej engines as well as other platforms so after getting in touch with the machine shop and having him inspect the case halves we decided to proceed and start gathering a parts list. So this brings us to today, since RealStreet was having a black friday sale my brother made a huge purchase, parts list and part numbers as follows:

Bottom end

Pistons
JE Ultra series pistons 99.5mm 8.5:1cr 361327

Rods
Brian Crower forged I beam rods 130.5mm with 625 fasteners BC6606

Crank
OEM subaru 79mm ej257 crank shaft 12200AA430

Sleeves
Darton dry sleeves 300-031-3

Heads

Cams
GSC S2 Dual AVCS cams 7026S2

Intake valves
GSC Chrome polished stainless steel +1mm 2014-1

Exhaust valves
GSC Super alloy exhaust valves +1mm 2017-1

Valve springs and retainers
GSC Beehive valve springs and retainers 5043

Head studs
IAG performance ARP2000 14MM head studs IAG-ENG-1711

Head Gasket
Currently thinking of using a JE Proseal with copper orings
Following
Ebradley 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 08:07 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2021 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.