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Old 12-25-2022, 04:00 PM   #1
jayhawke499
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Member#: 524736
Join Date: Jun 2021
Location: Virginia
Vehicle:
2010 STI
Aspen White

Default jayhawke499's 2010 STI SE EJ207 Build!

Hey everyone! Its about time I broke down and made a post about my 2010 STI SE. Her and I crossed paths April of 2021, my previous car (Focus ST) was totaled and I found this STI as my replacement car. I bought it knowing it would need a good bit of love, it had 130k miles on it, now 164k miles. But the bones of the car were in great shape.

Getting the car, my main motivation was to swap the car over to an EJ207. The 257 is fun in its own right, but I wanted to go for something different. With that goal in mind, I collected parts over time, learned a bunch and now here I am.

Outside of the engine, the goal for the car was to be a daily (15 minute daily commute round trip) as well as a car that can autocross, trackcross, and just be overall fun.

One thing I hope to achieve is documenting my experience with the OEM EJ207 short block, p/n 10103ac510. Searching the internet for information about this short block only turns up a few posts discussing it and one actual user that ran it. With a used imported EJ207 going for ~$5000 or more, and this new OEM short block coming in at $2200 shipped (thanks to DL Motorsports Parts) it seems odd that more people don't choose this route.

Currently the car is under the knife getting the old engine (still running, just old) out of the car and setting up the new EJ207 and all of the goodies therein. I will return with an update once we're running!

Also, I want to thank everyone who I purchased things from, sold things to, and learned things from along the way! I'd also like to thank Scott at SweeneybuiltLLC in Winchester VA for helping me out getting my heads squared away, as well as assembling my bare long block. Once the car is done and broken in, I will be taking it to Matt Shue of ShueTuning in Ashland VA for my flex fuel tune. Mach V Motorsports handled the alignment and helping me get my suspension setup, and they did an excellent job.

UPDATE 1/19/2024: ~8700mi on the EJ207 setup so far, runs amazing. New EFR 7163 stock location turbo kit going in soon! Stay tuned for results below!

Short block:
New OEM EJ207, "¾ closed deck", p/n 10103ac510
Breakin on Motul 10w40 breakin oil
Following IAG breakin guidelines

Cylinder heads:
EJ20x heads, Z20 casting
Valve job
No port & polish
ARP 2000 11mm head studs
NGK LFR7AIX gapped to .022"
GSC bronze valve guides
GSC valve stem seals
GSC standard valve springs w/ titanium retainers
GSC std alloy intake valves, 36mm
GSC std alloy exhaust valves, 32mm
GSC S2 DAVCS cams
Clearances confirmed by machine shop
OEM MLS head gasket p/n 11044AA760

Calculated approximate compression ratio: 8.08:1

Exhaust/turbo hot side:
Perrin Rotated T3 turbo kit
Garrett GTX3076 Gen 1, .82 AR T3 turbine housing ceramic coated, w/ turbo blanket, refreshed by Busted Finger Motorsports
Tial MV-R 44mm wastegate, 1 bar spring setup
Fathouse Fab 4-1 equal length headers, ceramic coated
3" Ark Grip catback
3" Perrin Catback for 08-10 WRX
Full Race Stock Location EFR B1 Frame Turbo Kit, uppipe wrapped in HeatShield Header Armor
EFR 7163, .85 A/R T25/Vband IWG turbine housing, ceramic coated, BPV blocked off
Turbosmart Gen V Dual Port IWG Actuator, 14psi spring setup
ATP Alum 5 Degree Tilt Oil Drain Tube for GT/GTX Series Turbos, 5/8" Barb
Grimmspeed EJ headers, ceramic coated, wrapped in HeatShield Header Armor, factory narrowband bung blocked off
Xforce 100 cell 3" high flow cat in downpipe
VividTi Titanium M10x1.25 - 45mm studs, nuts, thick washers x6 for headers
Invidia Q300 Single Exit for 08-10 WRX

Intake/turbo cold side:
8mm phenolic spacers
TurboXS FMIC
Turbosmart Raceport (full vent to atmosphere)
GM IAT sensor, bung welded ~4in from throttle body
MAC 3 port boost controller
Omni 4 bar MAP
OEM intake manifold
Custom intake with AEM 3.5" filter
Killer B Speed Density Hard Inlet
HPS 3" to 2.5" Offset Coupler
KSTech 3" CAI with heat shield for TurboXS FMIC

Fuel:
IBR -6 AN fuel rail & line kit, set up in parallel
Aeromotive FPR
Continental Ethanol Sensor, wired directly into Link ECU
ID1300x injectors
Walbro 450 in tank pump, Visconti Hanger Radium Fuel Hanger
iWire Fuel Pump Controller Hardwire Kit for In-Tank Single Pump W/ Pass Through Studs

Electronics:
Link WRX11X Plug In Standalone ECU
Link CAN Lambda Module
AEM 30-4900 Wideband/Boost Failsafe Gauge
Innovate MTX-D oil temperature & pressure gauge
BTI 52mm CANbus Gauge (coming soon)
Perfect Tuning CANbus Gauge for Link ECU
Honeywell PxL 150psi Oil Pressure Sensor, remote mounted, wired directly into Link ECU
Homemade speed density harness, GM IAT sensor
iWire Grounding Kit

Oiling/PCV:
Kinguawa stainless steel passenger side AVCS line
Homemade Racetronix passenger side AVCS line
STM -4 turbo feed line
IAG V2 Comp AOS
JDM 12mm Oil Pump
3MI AOS Oil Drain Line
Killer B oil pan, pickup and baffle
Chasing Js Titanium Dipstick

Cooling:
Killer B Water Pump Housing
Megan Racing aluminum radiator
Koyo Radiator with OEM fans
Aluminati Coolant Expansion Tank
Mishimoto slim fan and shroud
OEM liquid to liquid oil cooler
Cobb Coolant Overflow Tank
Penguin Garage/GReddy Solid Radiator Cap
Cylinder 4 Cooling Mod

Timing:
Aisin TKF-004 Timing Belt and Water Pump Kit
IAG Adjustable Timing Idler Kit

Engine Misc:
Fluidampr
WC Lathe Werks ARC Tribute Alternator Shroud
AOS and soft coolant lines wrapped in FireFlex
UPR Vacuum Block


Drivetrain:
Competition Clutch Twin Plate Organic Clutch
Cusco engine and transmission mounts
IAG Comp Engine Mounts
Aluminati Solid Transmission Mount
Whiteline Positive Shift Kit
TWM short shifter
FactionFab front shifter bushing
Kartboy rear shifter bushing
Prototype pitch stop mount
Torque Solutions solid U joint
Perrin rear subframe lockdown
Whiteline rear diff lockdown (partial, only the two rear diff bushing inserts)
Whiteline diff mount bushing
Rallitek clutch master cylinder brace
Goodridge clutch braided line

Suspension:
KW V3 Coilovers
Eibach 8k springs front and rear
RCE forged lowering front top hats
Eibach 25mm front sway bar
Whiteline front endlinks
Superpro front swaybar bushings
Rallitek 22mm rear sway bar
Agency Power rear endlinks
Whiteline rear swaybar collar
Superpro rear swaybar bushings
Superpro rear swaybar brace
Whiteline bump steer correction kit (ball joints and front tie rod ends)
Whiteline ALK for 08-10 STi
Superpro front lower inner control arm bushings
Superpro rear upper control arm bushings
Godspeed adjustable rear lower control arm
Whiteline trailing arm bushings
SPC rear toe arms
DIF TECH rear eccentric lockout kit
Aggressive street alignment from Mach V Motorsports
2015+ STI Steering Rack
Premade Fragola -6 AN PTFE Crimped Line p/n 6026-1-4-36BL
Chase Bays Power Steering Reservoir
Metric to AN conversion fittings for steering rack
Autobahn88 6 row cooler
Custom aluminum bracket for power steering cooler


Brakes:
RR Racing Stage II Front Brake Kit, Wilwood Forged Superlite 6 piston caliper
w/ DBA 4000 rotors
RR Racing Sport Performance Rear Brake kit, Wilwood Dynalite 4 piston caliper
w/ DBA 4000 rotors
Goodridge stainless steel brake lines
Grimmspeed master cylinder brace


Exterior:
Street wheels - WedsSport SA-72R in Blue Light Chrome, 18x9.5 +38, wrapped in Yoko Advan Sport A/S+ 255/35/18
Track wheels - BBS RE in satin black, 18x9.5 +35ish, wrapped in Falken RT615K+ 265/35/18 Kumho V730 255/35/18
Battle Aero chassis mounted front splitter
TBW aluminum front undertray
Nine Lives Racing rear wing with Ciro Design uprights
Base impreza hood
Chris Longinott front bumper brackets
Duraflex VRS front bumper
Driveway Labs GT Hood Duct

Interior:
Recaro Sportster CS w/ Airbag
Color matched trim panels (bleh)
JDM S206 Double DIN radio trim
Glowshift 52mm triple pillar pod
Humble Rumble firewall fix kit
P2M checkerboard floormats (bleh)
6OC door panels (coming soon)













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Last edited by jayhawke499; 03-19-2024 at 08:03 PM. Reason: Updated build sheet
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Old 12-26-2022, 12:23 PM   #2
Scooby-Doode
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Buggy GT

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Love the hatch. That's pretty low compression ratio. How much boost are you running, and dyno runs/sheets you can post?
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Old 12-26-2022, 03:42 PM   #3
robbieshonda
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Interlagos Blue 610/580

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Scotts a good dude. Ive known him for years. nice car!
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Old 12-26-2022, 06:30 PM   #4
Gixhost
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Aspen White

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Car is amazing!!!
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Old 12-26-2022, 08:40 PM   #5
jayhawke499
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Location: Virginia
Vehicle:
2010 STI
Aspen White

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Quote:
Originally Posted by Scooby-Doode View Post
Love the hatch. That's pretty low compression ratio. How much boost are you running, and dyno runs/sheets you can post?
Yeah the compression ratio was the only thing about the build I wasn't 100% happy with. Factory compression ratio for the EJ207 is at 8:1, and using a factory head gasket it doesn't change much. I wanted to go with 9:1 - 9.5:1 compression ratio pistons but also didn't want to open a can of worms with cracking open the factory assembled short block. Maybe in a future iteration of the car.

The engine is not quite in the car yet but I will definitely update with dyno sheets and videos when it is done. I'll also post some pictures of the engine as it sits currently before it goes in the car in the next couple of days. Nervous but excited!

Quote:
Originally Posted by robbieshonda View Post
Scotts a good dude. Ive known him for years. nice car!
Scott is the man, I appreciate his knowledge while also being able to give you personal attention for your build.

Quote:
Originally Posted by Gixhost View Post
Car is amazing!!!
Thank you!! Hopefully it'll get more amazing in the spring when I am able to wrap up the interior and the aero stuff. I am particularly excited for the Recaro Sportster
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Old 01-21-2023, 12:14 AM   #6
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The Cheddars restaurant runs on the unique concept of providing scratch-made food to its customers. It specializes in providing American fast food such as burgers, chicken, steaks, seafood, salad, etc. Get cheddars lunch hours here.
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Old 04-01-2023, 08:42 PM   #7
jayhawke499
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2010 STI
Aspen White

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Time for an update!!

The car is now driving as of March 4th, after a bit of time troubleshooting (and figuring out my passenger side coil packs were plugged in backwards ). The tune date for the car is set for April 22nd, 2023!

A shot of the engine bay as it sits.





I also updated the build sheet to reflect some changes that came about as final assembly was coming together. A few of the main changes that happened:

- Stepped up to a twin plate clutch as opposed to the McLeod stage 3 clutch I'd purchased previously. The McLeod clutch would've been right at the edge of the power level that I wanted, and I was able to find the Comp Twin Disc organic locally brand new for a great deal. The Comp Twin Disc Organic clutch is awesome to drive around on! As of today I have put about 400 miles on it, but it is a great option for a daily driver

- Decided to switch to the Link G4X plug in ECU. Ran the car previously on MerpMod, then went to DimeMod for a time. DimeMod and MerpMod both are awesome and very capable, but my tuner and I put our heads together and decided the Link ECU with the CANbus Lambda capability would be the best for this setup. This will also open up the possibility of other CANbus expansion later like a digital dash!

- Switched up the gauge setup from the ATI Center Gauge Pod and Dual Cluster Pod to the Glowshift Triple Pillar Pod. I would highly recommend pillar pod gauges over other styles. I ran all of the sensor wiring through the grommet in the driver side fender well and it made everything nice and tidy with the fuse box being on the driver side as well.

I've got a couple more things to take care of before the tune date, namely getting the standalone set up in the car, but everything is looking great so far!

Additionally, I will add separate posts detailing the aforementioned full AN line conversion for the power steering, as well as another post in the future discussing the Recaro Sportster CS install with the built in airbag.
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Old 04-05-2023, 10:48 AM   #8
Black90tsiawd
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What's that splitter block on top of the intake manifold?

If this is your daily you might want to consider getting rid of the a pillar gauges. There's an airbag back there that will turn those things into missiles pointed right at your face if you get into an accident bad enough to set off the air bags.
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Old 04-06-2023, 06:00 AM   #9
jayhawke499
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Join Date: Jun 2021
Location: Virginia
Vehicle:
2010 STI
Aspen White

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It's my vacuum block, I retapped all of the ports in the intake manifold to 1/8" NPT, then plugged all but two of them, cylinder 1 and 4 reference for the vacuum block. I have my boost gauge, brake booster, fuel pressure regulator and blow off valve reference running off of it. I converted all of the vacuum/boost lines to push-to-connect for both the turbo/boost controller/wastegate and the vacuum block setup (minus the brake booster line).

I was thinking about that the other day too when I was looking at the seat airbag thing. I think I'll relocate the gauges to one of those defroster vent gauge pods, similar positioning but not mounted on top of a safety bomb

I appreciate the feedback! If I remember correctly, the diff support bushings I've got on the car my girlfriend picked up off you on Marketplace, now you get to see the POS it went into, haha.
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Old 04-06-2023, 01:00 PM   #10
19std
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Very nice build, excited to hear about your progress with Link!
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Old 04-06-2023, 01:57 PM   #11
Black90tsiawd
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Quote:
Originally Posted by jayhawke499 View Post
It's my vacuum block, I retapped all of the ports in the intake manifold to 1/8" NPT, then plugged all but two of them, cylinder 1 and 4 reference for the vacuum block. I have my boost gauge, brake booster, fuel pressure regulator and blow off valve reference running off of it. I converted all of the vacuum/boost lines to push-to-connect for both the turbo/boost controller/wastegate and the vacuum block setup (minus the brake booster line).

I was thinking about that the other day too when I was looking at the seat airbag thing. I think I'll relocate the gauges to one of those defroster vent gauge pods, similar positioning but not mounted on top of a safety bomb

I appreciate the feedback! If I remember correctly, the diff support bushings I've got on the car my girlfriend picked up off you on Marketplace, now you get to see the POS it went into, haha.

Nothing wrong with seeing where my old parts go. Was that the sale where i made some mistake, i think i didn't get it out on time, so i through in the bushings to make up for my screw up?

I personally use a defroster mount for my AP. The i have a SMY performance gauge cluster surround with a spot for 2 52mm gauges and finally a left side vent with a spot for another 52mm gauge. I have seen one for the defroster with either 2 or 3 52mm holes. It's kinda hard to beat the AP for gauges in a consolidated space. You can get almost anything wired in to the ecu so it displays on the AP. I went to iWire and got a harness for my wbo2, Cobb fuel pressure sensor and 4 bar map sensor. It's nice to be able to log everything when i need to send something over to my tuner.

Also i have that same alternator cover but with the fins burnt. I love how it looks but it definitely gets in the way of trying to check my dipstick.
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Old 04-07-2023, 12:31 PM   #12
jayhawke499
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Join Date: Jun 2021
Location: Virginia
Vehicle:
2010 STI
Aspen White

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Nah not that one, this was about a year ago, around this time. Selling stuff can definitely get hectic

I picked up a CANbus gauge that will fit in a 52mm gauge pod, it should be able to display any parameter that the ECU monitors similar to an Accessport. With the CAN expansion available on the Link ECU there's a whole bunch of CANbus displays that I can experiment with. But I agree, the Accessport is hard to beat.

WC Lathe Werks is the best! But yes, as soon as I put it on I also noticed it was in the way of my dipstick lmao, the price you have to pay for fashion
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Old 04-08-2023, 10:29 AM   #13
prometheusecks
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Muddy

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Quote:
Originally Posted by jayhawke499 View Post
Time for an update!!

Additionally, I will add separate posts detailing the aforementioned full AN line conversion for the power steering, as well as another post in the future discussing the Recaro Sportster CS install with the built in airbag.

I'm looking into installing some Sportster CS's (with airbag) in my STi hatch as well so I'm interested to see how your install goes
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Old 04-09-2023, 04:50 AM   #14
ketaminekitten
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amazing looking car!! they really ought to bring back the hatch already. the other hot hatches on the market just don't compare.
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Old 04-10-2023, 03:39 PM   #15
Black90tsiawd
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Quote:
Originally Posted by jayhawke499 View Post
Nah not that one, this was about a year ago, around this time. Selling stuff can definitely get hectic

I picked up a CANbus gauge that will fit in a 52mm gauge pod, it should be able to display any parameter that the ECU monitors similar to an Accessport. With the CAN expansion available on the Link ECU there's a whole bunch of CANbus displays that I can experiment with. But I agree, the Accessport is hard to beat.

WC Lathe Werks is the best! But yes, as soon as I put it on I also noticed it was in the way of my dipstick lmao, the price you have to pay for fashion
I sold a ton of stuff during my build to keep funding upgrades. Either way glad to hear some of it is getting used.

I was really interested link ecus when the whole green speed thing got anounced. I got lucky with getting my cars tune finished up in time. Unfortunately whenever i decide to upgrade turbos to go for more power, and i already want more, it seems like the cost of a stand alone is going to have to get added in which makes it way more expensive. Any issues getting your car inspected with the link? It's my understanding stand alones don't keep the factory obd2 port which is required for inspections.
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Old 04-12-2023, 09:49 PM   #16
jayhawke499
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Location: Virginia
Vehicle:
2010 STI
Aspen White

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Quote:
Originally Posted by prometheusecks View Post
I'm looking into installing some Sportster CS's (with airbag) in my STi hatch as well so I'm interested to see how your install goes
My main procrastination here has been working through what I want to do about the airbag connector. I would like to source an OEM connector but I can't exactly find the style available online. And I don't really want to buy a $100 used airbag just to chop the connector off, then have this connectorless airbag hanging around. I think I might just end up buying a set of Deutsch connectors, chopping the harness in the car and doing it that way. As much as I'd like to keep it a completely OEM plug and play setup, for me I don't think I'll ever be replacing this seat. And if I do, I'll cross that bridge when I get to it.

Quote:
Originally Posted by ketaminekitten View Post
amazing looking car!! they really ought to bring back the hatch already. the other hot hatches on the market just don't compare.
Agreed! The Exiga and Levorg overseas are pretty cool. But every time I think about new cars I think about how much stuff has been added that I don't like, I think this generation of car is the perfect generation. Still technologically advanced, but not unnecessarily so with in-vehicle wifi, giant 12" screens, etc.

Quote:
Originally Posted by Black90tsiawd View Post
I was really interested link ecus when the whole green speed thing got anounced. I got lucky with getting my cars tune finished up in time. Unfortunately whenever i decide to upgrade turbos to go for more power, and i already want more, it seems like the cost of a stand alone is going to have to get added in which makes it way more expensive. Any issues getting your car inspected with the link? It's my understanding stand alones don't keep the factory obd2 port which is required for inspections.
I had reservations as well but honestly it was so worth it to go to the Link. I got the car turned over with it last weekend and the breadth of customisation and expansion that you have with the standalone is amazing. If you're not as worried about that open source is still a good option, just for some reason I had some troubles with some of the features on my car. The speed density worked fine, just the fuel pressure and ethanol logging was funky, your mileage may vary.

Where I live we don't have OBD2 inspection so I'm not ultra worried about it, but the Link ECU has 2 CANbus channels; one is free and the other is used to run the factory STi CAN/OBD2 stream. DCCD, ABS, wheel speed sensors, all that stuff. So that should be compliant with any necessary OBD2 inspection requirements. I haven't hooked up a scanner to it yet to confirm, but I'll update once I see if that works or not.
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Old 04-13-2023, 12:11 PM   #17
Black90tsiawd
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Quote:
Originally Posted by jayhawke499 View Post
I had reservations as well but honestly it was so worth it to go to the Link. I got the car turned over with it last weekend and the breadth of customisation and expansion that you have with the standalone is amazing. If you're not as worried about that open source is still a good option, just for some reason I had some troubles with some of the features on my car. The speed density worked fine, just the fuel pressure and ethanol logging was funky, your mileage may vary.

Where I live we don't have OBD2 inspection so I'm not ultra worried about it, but the Link ECU has 2 CANbus channels; one is free and the other is used to run the factory STi CAN/OBD2 stream. DCCD, ABS, wheel speed sensors, all that stuff. So that should be compliant with any necessary OBD2 inspection requirements. I haven't hooked up a scanner to it yet to confirm, but I'll update once I see if that works or not.
Mt tuner does Haltech, Link and now Emtron. They offered me a discount for an Emtron set up at cost if i was willing to be the first customer after they became a vendor. I was really interested but we were talking 1000's on top of what was already going to be a rather large bill and it just wasn't feasible at the time.

I do live in an area with obd scanning and emissions unfortunately. I know that some places are willing to do a visual inspection instead of obd readiness here but it's not every place. I'm also unsure if it only applies to cars that are emissions exempt (ie under 5k miles driven in the passed year) or if it will cover any car. If Link can do obd that's something ill def keep in mind.

I'm curious when that big old snail of yours spools on that little 2.0 of yours?
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Old 04-14-2023, 07:49 PM   #18
jayhawke499
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Location: Virginia
Vehicle:
2010 STI
Aspen White

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Quote:
Originally Posted by Black90tsiawd View Post
Mt tuner does Haltech, Link and now Emtron. They offered me a discount for an Emtron set up at cost if i was willing to be the first customer after they became a vendor. I was really interested but we were talking 1000's on top of what was already going to be a rather large bill and it just wasn't feasible at the time.

I do live in an area with obd scanning and emissions unfortunately. I know that some places are willing to do a visual inspection instead of obd readiness here but it's not every place. I'm also unsure if it only applies to cars that are emissions exempt (ie under 5k miles driven in the passed year) or if it will cover any car. If Link can do obd that's something ill def keep in mind.

I'm curious when that big old snail of yours spools on that little 2.0 of yours?
Emtron would be sweet, but yeah very pricey. I'm not sure what you'd gain over the Link, but I also haven't looked into it much.

I went out and tried to use my Innova OBD2 scanner on the car and it was confused and couldn't connect, I think it was having an issue cause it couldn't identify the car. I didn't spend a bunch of time looking into how to properly set up the OBD2 so I may have overlooked something. I'll also try one of the basic scanners and see what happens

I have no idea when the 3076 is gonna spool but we're certainly going to find out! Haha.
I've seen other similar setups with spool around 4500-5000, but most of the other cars that have similar setups are single AVCS not dual AVCS, don't have S2 cams, don't have the specific heads I have, etc. My tune is next Saturday, so I'll definitely give you guys all the juicy details once the tune is all dialed in.
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Old 05-03-2023, 06:14 PM   #19
jayhawke499
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2010 STI
Aspen White

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Well the dyno day has come and gone, the car performed without any issues whatsoever and I am very happy with the results. I told Matt my focus was to have a safe drive-able tune, and that I wasn't chasing any numbers, I just wanted to see what the car could do in its happy zone.

Event: Dyno pull
Location: Ashland VA
Ambient Temp: ~65-70
Elevation: basically zero
Weather: Cloudy/rainy
Track and Conditions: Dyno room
Tires: 245/40-18

Car: 2010 Subaru STI
Tuner: Matt Shue
Dyno Info: Superflow
Transmission: STi 6 speed
Gear: 4th
Peak HP at RPM: 420 @ ~7200 (360 on 93oct), rev limiter set to 7700rpm
Peak Torque at RPM: 340 @ ~6500 (300 on 93oct)
Baseline hp/tq for a stock on same dyno: Unknown
Target Boost: ~26psi
Target AFR: ~11.5
Fuel: E85

See modlist above

https://lh3.googleusercontent.com/dr...YfuD_TTG=s1600

https://drive.google.com/file/d/1lfL...ew?usp=sharing

As mentioned before, the car drives amazing, and I could not be happier! Currently sitting with the IDC around upper 70s with the base fuel pressure bumped up to around 50psi iirc. The Link ECU performed remarkably as well, the expansion and configuration that you can implement is top notch, and now that the car is running on CANbus Lambda as well as having the failsafes for boost cut in the ECU it gives alot more confidence in the car running how its supposed to in a range of conditions. My tuner also complimented the knock detection strategy that the Link ECU's have. Small note, there is an option to turn on OBD2 functionality in the CAN menu but each time I have it seems to freak out the system. With that turned off, all of the factory CAN features work flawlessly, no lights on and SI drive, DCCD work perfectly. I would not hesitate to recommend this ECU to anyone looking to get outside of the scope of open source tuning and step up to the next level.

Now that the large hurdle is cleared there are still a number of small things I'd like to do with the car, I have new OEM wheel bearings to install with ARP extended studs, install my seat, install the RR Racing big brake kit, fabricate some wing uprights to mount this Nine Lives Racing wing I've had sitting in my basement for a few months now, fabricate an oil cooler solution, do some other heat management, etc. But the car is running and driving now so I can slow down the pace a bit and smell the roses instead of full push to get the car running, lol.
On that note, if anyone has any input to give on oil coolers with 4-1 style headers I am all ears.

Next stop for the car is Summit Point to have some fun! (after the oil cooler is installed)

Last edited by jayhawke499; 03-07-2024 at 09:43 PM.
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Old 05-04-2023, 08:46 AM   #20
Black90tsiawd
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Looks like you were spot on about the spool time. The graph is right about 5000 when you hit peak tq. I'm sure it's a blast to drive.

On a side note. If you're interested do happen to have a used greddy oil cooler set up i was going to use for my build but decided it was unneeded for a street car. You'd need to fab up mounting brackets and possibly lines (Depending on how you mount it. It does come with lines/fittings/sandwich plate/oil cooler) i'd be willing to let go for pretty cheap including shipping.
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Old 03-07-2024, 08:35 PM   #21
jayhawke499
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Hello NASIOC family! Time for another long overdue update. This is probably going to be a long one, got about a year of ground to cover!

Let's start off with the fun stuff, new turbo, new dyno results! See the above build list for an updated list of what is on the car.

Event: Dyno pull
Location: Ashland VA
Ambient Temp: ~50s
Elevation: basically zero
Weather: Cloudy/rainy
Track and Conditions: Dyno room
Tires: 255/35-18

Car: 2010 Subaru STI
Tuner: Matt Shue
Dyno Info: Superflow
Transmission: STi 6 speed
Gear: 4th
Peak HP at RPM: 424 @ ~7000 (350 on 93oct), rev limiter set to 7700rpm
Peak Torque at RPM: 364 @ ~4100 (300 on 93oct)
Baseline hp/tq for a stock on same dyno: Unknown
Target Boost: ~27psi
Target AFR: ~11.5
Fuel: E85



You can see the previous dyno session in blue and the new power curve. The EFR 7163 fattened up the power curve SIGNIFICANTLY. I also had some small upstream exhaust leaks during the previous tune owing to the Fathouse Fab headers. The runners on the passenger side prevented the center nut from being tightened properly. The new Grimmspeed headers are extremely well made and even nicer to install, a standard 14mm socket and extension fits easily and unobstructed to tighten all nuts.

The Full Race turbo kit was a joy to install, it was a very straightforward swap using the Killer B hard inlet, stock location STI style hot side charge pipe I had leftover, and a KSTech cold air intake. Shoutout to PDXREALTOR for making me a deal on it, I think this turbo suits the EJ207 quite well for a moderate power setup. The extra torque and horsepower as well as a steeper slope up to the respective peaks is very noticeable while driving, and it is awesome. Thankfully since it is a 2 liter, power still doesn't come on low enough to cause undue stress on the engine.
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Old 03-07-2024, 09:42 PM   #22
jayhawke499
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RR Racing Stage II Front Brake Kit, Sport Performance Rear Brake Kit and ARP extended studs install:

In preparation for track duty, I decided to replace the STI Brembo brake calipers with something a bit more track focused that could stand up to heat better. I looked through many options and decided on the RR Racing Stage II front kit, and I was able to find the RR Racing Sport Performance rear kit for an excellent price used. RR Racing offers a great price point for a motorsport caliper without rubber dust seals and a thick pad for long life and less heat soaking. The price jump to the AP Racing 6 piston kit or the Alcon kit was just a bit more than I wanted to spend at the time. The RR Racing kit features 6 piston front calipers and 4 piston rear calipers.

The RR Racing brake kit was intended to be installed on a standard WRX not an STI, so they do not account for the knuckle stiffener feature that is present on the STI hub. I had to use an angle grinder and trim down the knuckle stiffener, not a big deal but something to be aware of.



For anyone wanting to purchase this kit for a partly daily driven car, I would definitely opt for the Carbotech 1521 pads for daily driving and then choose whichever Wilwood or other compound for track use. The BP-10 pads work great on the street but they are DUSTY.

Here is a photo of the front hub with the new wheel bearings and ARP extended wheel studs installed.



Same for the rear.



I was able to do one autocross in June of 23 and the brake kit performed admirably. I plan to attend many more events this year to get a feeling for this brake kit, and I'll update when I have additional comments.

When ordering this kit, it comes with black zinc plated bolts for the bracket to knuckle connection, and stainless steel hardware for the caliper to bracket connection. I opted to purchase and install ARP stainless steel bolts instead of the black zinc plated bolts so that there aren't any worries about them rusting in place.

A small note on the ARP extended stud install, the STI hub did not allow me to install the studs with the wheel bearings on the car. I had to loosen the wheel bearings off so I decided it was a good time to install new wheel bearings. Came out pretty well! Paired with the Muteki SR48 lug nuts, so the lug nut has full thread engagement on the stud.
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Old 03-12-2024, 03:36 PM   #23
Black90tsiawd
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Well that new turbo sure spools a ton faster. Yet still makes the same power up top. I'm sure it's way more fun on the street.
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Old 03-12-2024, 08:30 PM   #24
jayhawke499
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Quote:
Originally Posted by Black90tsiawd View Post
Well that new turbo sure spools a ton faster. Yet still makes the same power up top. I'm sure it's way more fun on the street.
Definitely! Something about my setup just wasn't properly optimized to the 3076, but the 7163 rocks hard. On an IWG too, it makes the engine bay on the passenger side much nicer to work in. I'm finally satisfied with the turbo setup and engine setup at large.
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