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Old 02-14-2022, 04:58 AM   #1
CT26SupraTurbo
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Member#: 213393
Join Date: Jun 2009
Chapter/Region: MWSOC
Vehicle:
2003 WRX
Tomei Powered

Default 2014 JDM STi GVB spec C G25-660/TD05H Result 380whp

Event: Dyno Pull

Location: YongIn GHP / Seoul, S. Korea
Ambient Temp: ~15 degC.

Elevation: Unknown

Weather: Dry and Nice.

Tires: Michelin, Pilot Sport 4, 235/40/18r

Car: 2014 Impreza JDM STI spec C GVB

Tuner: PFP

Dyno Info: DynoJet

Transmission: 2014 JDM STi Transmission (These are short ratio 6MT like early USDM 04-06 but with final drive of 3.9 + 1.1 Transfer ratio)

Gear: 4th

Peak HP at RPM: 385whp @ 6200rpm STD Corrected

Peak Torque at RPM: 45.8 kg/m @ 4300rpm STD Corrected

Baseline hp/tq: 240whp as RON 97 octane 2017 USDM VAB STi stock

Target Boost: 1.45 Bar (21psi)

Target AFR: 11.6

Fuel: RON 99 octane

Engine/Power Modifications:
Stock Ver 10 EJ207, Kinugawa G25-660/TD05H Ball bearing single scroll bolt-on Turbo with 8CM exhaust housing, Tomei Unequal length header, Custom downpipe w/ No catalyzer, Fujitsubo AUTHERIZE-RM + Custom enlarged tipm External wastegate setup + 45mm Turbosmart external wastegate, ID1050x Cobb Injectors, Cobb 265lph fuel pump, ProcessWest FMIC kit, Tomei turbo inlet hose, Cobb intake, IAG TGV Delete Ver.2, Airpump delete, Hi Spark Japan coilpack, HKS spark plugs Cold range 8, Greddy Radiator

Driveline Modifications: 2014 JDM STi Transmission (These are short ratio 6MT like early USDM 04-06 but with final drive of 3.9 + 1.1 Transfer ratio)

Suspension Modifications: BLITZ ZZR coilover, Cusco adjustable lower arm,

Other Modifications: CE28SL 18x9.5, WorksBell RAPFIX + Prodrive Japan steering wheel, Full Defi advance gauges(Boost, Water temp, oil temp, Oil pressure)

Video Link: To be updated.

Dyno Plot :


Low boost S mode 1.15 bar, Hi boost S# mode 1.45 bar

Picture of the car :













So it has been awhile since I updated on NASIOC but I'd like to introduce few of the cars I encountered over my subaru journey.

Car is my client's 2014 JDM STi GVB Spec C. This car features many desirable options such as lightweight glass, aluminium hood, intercooler spray, etc. We decided to ditched Spec C ball bearing twin scroll setup for UEL rumble + sufficient power on top-end setup. I was personally against on ditching twin scroll setup but ever since owner bought the car brand new in Osaka, Japan, he wanted to get that signature Subaru rumble sound on his beloved Spec C. Goal was to keep the response of twin scroll ball bearing character but provide sufficient top-end.

Gas was RON 99 (93 equivalent in US)

Insta link for more photos : https://www.instagram.com/p/CZ4W-B7FNdd/?utm_medium=copy_link

Enjoy.
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Last edited by CT26SupraTurbo; 02-15-2022 at 12:49 AM.
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Old 03-10-2022, 12:02 PM   #2
HughGordon
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Join Date: May 2013
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Nice to see this here. I'm putting together a similar build but with an EJ257 and TD06SL2 on the exhaust side of the turbo.
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Old 03-11-2022, 12:04 AM   #3
CT26SupraTurbo
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2003 WRX
Tomei Powered

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Quote:
Originally Posted by HughGordon View Post
Nice to see this here. I'm putting together a similar build but with an EJ257 and TD06SL2 on the exhaust side of the turbo.


Glad you liked it. I recommend TF06 (updated TD06SL2 blade same physical size) package instead.
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Old 03-11-2022, 01:14 PM   #4
T-37
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Member#: 175624
Join Date: Mar 2008
Chapter/Region: MWSOC
Location: Wichita, KS
Vehicle:
0304 WRX WRX
SY WRB

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Do you happen to have a boost/rpm plot? Didn't see it in you dyno plot

Sent from my SM-G781U1 using Tapatalk
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Old 03-12-2022, 03:41 AM   #5
CT26SupraTurbo
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Member#: 213393
Join Date: Jun 2009
Chapter/Region: MWSOC
Vehicle:
2003 WRX
Tomei Powered

Default

Quote:
Originally Posted by T-37 View Post
Do you happen to have a boost/rpm plot? Didn't see it in you dyno plot

Sent from my SM-G781U1 using Tapatalk


I have them on log. I can pull it up from my PC later tonight. I ll get the log fron dyno pull.
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Old 03-14-2022, 04:58 PM   #6
HughGordon
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Quote:
Originally Posted by CT26SupraTurbo View Post
Glad you liked it. I recommend TF06 (updated TD06SL2 blade same physical size) package instead.
Ah, I've already bought the turbo with the TD06SL2, I wasn't sure what the TF06 was exactly. Seems like plenty of people have made good power with the SL2 though. Good to know.
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Old 03-20-2022, 09:46 AM   #7
CT26SupraTurbo
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Member#: 213393
Join Date: Jun 2009
Chapter/Region: MWSOC
Vehicle:
2003 WRX
Tomei Powered

Default

Quote:
Originally Posted by T-37 View Post
Do you happen to have a boost/rpm plot? Didn't see it in you dyno plot

Sent from my SM-G781U1 using Tapatalk
Sorry. Got a busy with daily errands but here you go.

Boost plot is during dyno pull 4th gear. Engine EJ207B (Ver. 10 spec C engine), Custom External wastegate pipe + 45mm Turbosmart EWG

High boost (S#) on RON 99 Octane

Gradual throttle -> WOT throttle at 2500RPM

You can see the plot below. Very responsive and a good match with EJ207

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Old 03-22-2022, 08:40 PM   #8
ether947
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Member#: 297799
Join Date: Oct 2011
Chapter/Region: South East
Location: Knoxville, TN
Vehicle:
2003 WRX
EJ207 version 8

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Very nice. Did this v.10 EJ207 have dual AVCS?
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Old 03-24-2022, 09:33 PM   #9
CT26SupraTurbo
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Member#: 213393
Join Date: Jun 2009
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2003 WRX
Tomei Powered

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Quote:
Originally Posted by ether947 View Post
Very nice. Did this v.10 EJ207 have dual AVCS?

Yes. All ver. 10 EJ207 has dual avcs
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