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2012 STi, "Natasha"
2012 STi, "Natasha"
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Old 08-19-16, 08:05 AM   #1
Leemanfor
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Default 2012 STi, "Natasha"


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 7/13/18
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:
Defi Red Racer Boost Gauge
Defi Red Racer Oil Pressure Gauge
AEM UEGO Wideband
Cobb V3 Accessport
JCS 3 pillar 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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2012 STi, "Natasha"-12592280_10101395495582882_4018608976396787170_n-jpg  

Last edited by Leemanfor; 10-13-18 at 07:55 PM.
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Old 08-19-16, 08:06 AM   #2
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Old 08-19-16, 08:09 AM   #3
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Default 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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Old 08-19-16, 08:12 AM   #4
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Default 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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Old 08-19-16, 08:14 AM   #5
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Default 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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Old 08-19-16, 08:19 AM   #6
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Default 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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Old 08-19-16, 08:21 AM   #7
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Default Re: 2012 STi, "Natasha"

June 2016
Installing after Powder-coating


July 2016
Pulled motor to swap clutch
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Old 08-19-16, 09:04 AM   #8
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Default Re: 2012 STi, "Natasha"

Well done sir... Lookin sharp
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Old 08-29-16, 07:15 AM   #9
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Default 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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Old 08-31-16, 02:05 PM   #10
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Default Re: 2012 STi, "Natasha"

Got my UOA back. Looks good for built motor imo.

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