|
|
|
|
Thread Tools | Display Modes |
12-01-2020, 01:50 AM | #1 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
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 as it would allow us to do a good amount in mods while saving a bit in tuning costs. 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 cast 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 very conservative timing and afr being on the rich side. Got the car towed and parked it. 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. The car was regularly logged and never encountered detonation. 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. Its 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 Update on newest parts list, the sleeve install and line bore was extremely botched by the local machine shop, in the end everything related to the heads stays the same, now as for the bottom end: IAG 1150 series closed deck case halves are now being used(arp main bolts, pinned mains, 14mm head studs, fire lock grooves) Still JE ultra pistons although had to buy 99.75mm ones due to IAG requiring next size up to get the bores round after closed decking Still stock sti nitrited crank Still BC I beam rods with arp 625 fasteners IAG CNC oil pump IAG oil pan and baffle Head gasket is now IAG firelock Killer B oil pickup ACL main bearings King rod bearings
* Registered users of the site do not see these ads.
Last edited by alexmartynyuk; 03-04-2024 at 04:51 AM. |
12-01-2020, 01:50 AM | #2 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 01-29-2024 at 09:59 PM. |
12-01-2020, 01:56 AM | #3 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
pics of blueprinting, unfortunately I didn't take pics of me setting bearing clearances on the rods or mains but I did have to buy two sets of main bearing sizes and two sets of rod bearing sizes(sunnen and mitutoyo tools were used to check clearances not plastigauge), for now I will not disclose the clearances but once I put this thing through some hard abuse and if it holds up I will update the clearances for bearings and ring gaps.
Last edited by alexmartynyuk; 01-29-2024 at 03:20 PM. |
12-01-2020, 01:58 AM | #4 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
To set ring gaps, I did have to invest in my own tq plates and a spare set of fire lock gaskets. I checked how much the bores distorted with and without tq plates as well as with and without the firelock rings in place, and let me tell you, on the firelock grooved blocks YOU WANT TO USE THE GASKETS IN PLACE WITH TQ PLATES T TORQUED TO THE FINAL TQ VALUE! Things move A LOT, enough to butcher your ring gaps by a good amount.
I had to modify the piston ring compressor to be able to go flush in the firelock groove otherwise the rings would pop out Last edited by alexmartynyuk; 01-29-2024 at 03:34 PM. |
12-01-2020, 06:10 AM | #5 |
Scooby Newbie
Member#: 481754
Join Date: Feb 2018
Location: Beaufort, SC
Vehicle:2017 STi Base Black |
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.
|
03-06-2021, 03:15 AM | #6 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 01-29-2024 at 11:25 PM. |
04-27-2021, 02:22 AM | #7 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 01-29-2024 at 10:04 PM. |
04-27-2021, 02:24 AM | #8 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
I did the cylinder head porting on these w25 heads, I did tons of research before doing any kind of porting and had a decent amount of tutoring from Dave at headgames. Nasioc image hosting killed all of my original uploads so Ill re upload some of the ones I have still
taking some measurements before cutting time to grind Cleaning up the combustion chamber area baking in the sun after pressure washing before going to machine shop Last edited by alexmartynyuk; 03-04-2024 at 03:49 AM. Reason: more pictures |
04-27-2021, 11:05 PM | #9 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 03-04-2024 at 03:51 AM. |
05-20-2021, 01:57 AM | #10 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 03-04-2024 at 03:56 AM. |
05-20-2021, 02:08 AM | #11 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 03-04-2024 at 04:08 AM. |
05-31-2021, 04:53 AM | #12 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
basemap before first start
Running after first start https://youtube.com/shorts/QQ6rcsOsXM0?feature=share 3 am everyone is tired and even driving is hard lol Last edited by alexmartynyuk; 03-04-2024 at 04:41 AM. Reason: added videos |
06-09-2021, 02:22 AM | #13 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 03-04-2024 at 04:37 PM. |
06-09-2021, 08:51 AM | #14 |
Scooby Newbie
Member#: 339923
Join Date: Dec 2012
Location: Virginia
Vehicle:2006 Impreza WRX STi grey |
nice. what are the plans for the entire build? still plan on the fp turbo or going with something else?
|
06-09-2021, 02:07 PM | #15 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Last edited by alexmartynyuk; 03-04-2024 at 04:43 AM. |
06-09-2021, 03:10 PM | #16 |
Scooby Newbie
Member#: 339923
Join Date: Dec 2012
Location: Virginia
Vehicle:2006 Impreza WRX STi grey |
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
|
06-10-2021, 03:23 AM | #17 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
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.
|
06-10-2021, 05:18 PM | #18 | |
Scooby Newbie
Member#: 524800
Join Date: Jun 2021
|
Quote:
|
|
07-23-2021, 03:07 AM | #19 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
reserved
Last edited by alexmartynyuk; 01-29-2024 at 11:47 PM. |
07-23-2021, 09:03 AM | #20 |
Scooby Newbie
Member#: 524523
Join Date: May 2021
|
Following. Looks like one hell of a project! Props to you!!
|
07-23-2021, 01:27 PM | #21 |
Scooby Specialist
Member#: 515308
Join Date: Jun 2020
|
Well, I was wondering, what worse than a 900 word essay with no breaks, and now I see, it’s some one who quotes the entire damn thing to say ‘fallowing’
|
07-23-2021, 03:47 PM | #22 |
NASIOC Supporter
Member#: 130990
Join Date: Nov 2006
Chapter/Region:
NWIC
Location: Menzel Lake, WA
Vehicle:06 Red Ltd.Wagon Dom 1.5xtr JJ tuned |
|
07-23-2021, 10:55 PM | #23 |
Scooby Specialist
Member#: 459692
Join Date: Dec 2016
Chapter/Region:
South East
Location: Hampton Roads Va
Vehicle:2019 WRX STI silica black |
|
08-10-2021, 01:35 AM | #24 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
I apologize to everyone about the run on sentence and poor writing lol. I wasn’t in the best state of mind as I wrote the first post at like 2am. I did a quick edit on the first post, that said I’m no writer so if you feel like it needs further work give me some pointers.
|
08-10-2021, 02:48 AM | #25 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
Wanted to mention that because we decided to keep avcs, ended up replacing all 4 of the cam gears with new factory units. Since the previous engine spun a bearing didn't wanna take any chances with trapped shavings working their way out and causing another failure just to save a couple hundred bucks.
AVCS solenoids were reused after extensive cleaning (avcs filters caught all of the shavings). Oil cooler was replaced with a new factory genuine unit. Last edited by alexmartynyuk; 01-29-2024 at 11:54 PM. |
Thread Tools | |
Display Modes | |
|
|