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Discussion Starter #1 (Edited)

The day I brought her home. February 6th, 2015.

Parts List:

Engine
Manley Platinum Forged Pistons 99.5
Eagle Forged H-beam rods
OEM 2012 STi nitrided crank
ARP 2000 Headstuds
King Rod Bearings
King Main bearings
Killer-B oil pickup
Killer-B baffled oil pan

Performance: Updated 8/26/19
Borg Warner EBCS
BNM Performance Fab Rotated Turbo kit
Borg Warner EFR 7163 EWG V-band housing
ID1300 Injectors
IAG billet black TGV deletes
Magnaflow Catback
ETS Rotated Turbo FMIC
Forge BPV with yellow spring and 1 shim
Exedy Stage 1 HD Organic Clutch
IAG AOS
Tial 44mm EWG Silver
Radium Fuel Pressure Regulator
Walbro 450 Fuel Pump
Radium Surge tank
KStech 73mm Intake

Exterior
Enkei TS-10 18x8.5 +53 in Gold
BFGoodrich Sport Comp 2 245/45/R18

Interior:
AEM X-line Wideband
Tanabe VLS Oil pressure
Cobb V3 Accessport
SMY Dual gauge Pod

Suspension
Group N STi Pitch Stop
Group N STi Engine Mounts
Group N STi Transmission Mounts


I am a DevOps Engineer for a Semi-conductor company in Longmont, CO. Back in 2004 when I was 17 I seen my first STI and heard that famous Subie rumble. I vowed that one day I would own one of those cars. That day finally came on February 6th 2015. I purchased a 2012 STi in Satin White Pearl with 39k miles on it for $28,000 from a Chevrolet Dealership.

I always liked the GR Sedan's and always wanted a white one. The car was Stock minus an SPT catback, RallyArmor Mudflaps and Motegi MR-118 17in wheels wrapped in Michelin Alpin winter tires.

I enjoyed the car for about 4 months stock, and then the mod bug started to itch. I went "stage 1" with a Grimmspeed CAI and OS Tune from Torqued Performance.

Then in July 2015 I purchased a CNT Catless downpipe, Grimmspeed EBCS and an V3 Cobb Accessport and went "Stage 2".

In October of 2015 I noticed I was having some issues with the car. It was bogging down a bit on power and my Accessport was not happy.


I decided to do a compression test towards the end of November...


At first I was disappointed and my wife wanted me to take it into Subaru and have them replace the short block. I didn't like that idea, because I modded it and it wasn't Subaru's fault the motor failed. So I decided to build the motor myself, because I had always wanted to do so.


I was originally going to re-use my OEM case halves, getting them honed and then using Manley drop in pistons. However, a piston install error changed that quickly.


Somehow the ring popped out and gouged the cylinder walls. So I went and bought new Case halves and got the shortblock assembled.


After it was all said and done. I really should have just purchased a shortblock from IAG. My wife was complaining to me about how much it cost, so I tried to do the "cheaper" route to appease her and in the end, I spent the same amount of money on it. Too late for that now. At least I can say I built it myself.
 

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935 Posts
Discussion Starter #3
Re: 2012 STi, "Natasha"

February 2016

I wanted to monitor my built motor, so I decided to purchase some gauges.

Defi Red Racer Boost and oil, and an AEM UEGO Wideband.

 

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Discussion Starter #4
Re: 2012 STi, "Natasha"

April 2016

I needed summer wheels/tires, as my car did not come with them when I first purchased it. Decided to pull the trigger on some Enkei TS-10 wheels

 

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Discussion Starter #5
Re: 2012 STi, "Natasha"

April 2016.

Purchased a Blouch Dominator 2.5XTR and Tial 44mm EWQ. Wanted to put these on, but my clutch was shot.
 

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Discussion Starter #6
Re: 2012 STi, "Natasha"

June 2016

Pulled the trigger on a Mishimoto FMIC kit. Seen one on a GR Wagon at Street Tuner Mayhem and it fit so well. I was a little wary of it, but so far its been a great piece. the Intercooler is huge!

Here's the kit getting Powder-coated. I didn't like the polished aluminum look
 

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Discussion Starter #7
Re: 2012 STi, "Natasha"

June 2016
Installing after Powder-coating


July 2016
Pulled motor to swap clutch
 

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Discussion Starter #9
Re: 2012 STi, "Natasha"

Thanks!

Dyno on Saturday.

Here's the graph. Was expecting a tad bit more, however I did tell Eric to tune me a bit conservative for breakin of the built motor. Just a baseline at the moment until the Dom goes on once I get back from Cancun

 

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Discussion Starter #12
Re: 2012 STi, "Natasha"

^ Negative, on the VF48 turbo

Been awhile since I updated this.

The Dom 2.5XTR I was going to put on was blown. I bought it used, and didn't check it well enough. Blouch didn't want to rebuild it so I decided to just cut my losses with it.

A friend of mine has a td06sl2 20g and told me to try out Kinugawa's td06sl2 60-1 8cm2 turbo. I picked it up in Late September

 

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Discussion Starter #14
Re: 2012 STi, "Natasha"

October 2016

I was daily driving a 2002 Saturn L100 due to the fact I live 32 miles 1 way from my work. Its got an ecotec 2.2L engine that got good gas mileage and was cheap. These ecotecs are known to have timing chain tensioner issues and I started getting chain slack on startup in the morning

I decided to swap the tensioner. which requires you to pull the old one out and put the new one in...then set it. Well I was working on that, but told my wife not to mess with it as i needed to get a new VC gasket.

one fateful Sat. morning she tried to start it. Hindsight is I should have taken the battery terminals off, but I thought it was going to be an easy job.

Pulled #1 sparkplug to find this

 

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Discussion Starter #16
Re: 2012 STi, "Natasha"

Car started making this weird ticking noise only when cold. Couldn't figure it out, but I could feel it on the timing belt cover by the passenger side. Took a video and noticed my timing belt was "jumping" when the noise happened. Thought it was a bad tensioner, but the tensioner was fine.

Noticed my timing belt guides were resting on the belt itself. Bought the Gates timing belt guide tool and set the clearance right. However, the damage was already done. Had to replace the belt and timing tensioner

 

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Discussion Starter #17
Re: 2012 STi, "Natasha"

As of today, this is how she sits. The DD is almost done, just need to replace a faulty TOB in the transmission and it will be good to go. Then the Sti can go back to garage queen

 

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Discussion Starter #18
Re: 2012 STi, "Natasha"

new UOA



really digging the 0w-40 Amsoil SS. I am a dealer so I have been testing out different weights of the 40w Amsoil stuff.
 

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Discussion Starter #19
Re: 2012 STi, "Natasha"

Purchased a KSTech 73mm Intake and a Grimmspeed MBC. I am tired of the wastegate flutter so my tuner advised me to get the MBC to clear it up, plus better boost control

my current CAI is a Grimmspeed, which doesn't fit with my FMIC.
 

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Re: 2012 STi, "Natasha"

Holy
whats the mileage on the car?

Car started making this weird ticking noise only when cold. Couldn't figure it out, but I could feel it on the timing belt cover by the passenger side. Took a video and noticed my timing belt was "jumping" when the noise happened. Thought it was a bad tensioner, but the tensioner was fine.

Noticed my timing belt guides were resting on the belt itself. Bought the Gates timing belt guide tool and set the clearance right. However, the damage was already done. Had to replace the belt and timing tensioner

Image Link
 
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