JasonW - 2004 JDM Impreza WRX STI 2.0L 6MT - GpN Tuning

2001+ Subaru STI
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west_minist
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JasonW - 2004 JDM Impreza WRX STI 2.0L 6MT - GpN Tuning

Post by west_minist » Wed Aug 24, 2016 9:40 am

Info
Owner: JasonW
Rom:CarBerry
Tyres: 235/45-17
Car Weight: 1477kg
Driver Weight: 73kg
Total Weight: 1550kg

Mods
Stock
Blitz SBC Boost COntroller
Tuned: XRT Group N Rally w/ MAF, AL, LC

Weather
Image

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Stock Performance

Post by west_minist » Wed Aug 24, 2016 12:51 pm

3rd Gear Pulls Stats #1.png
3rd Gear Pulls Stats #1.png (22.71 KiB) Viewed 2197 times
3rd Gear Pulls Stats #2.png
3rd Gear Pulls Stats #2.png (20.68 KiB) Viewed 2197 times
3rd Gear Pulls Stats #3.png
3rd Gear Pulls Stats #3.png (38.26 KiB) Viewed 2195 times
3rd Gear Pulls Stats #4.png
3rd Gear Pulls Stats #4.png (43.68 KiB) Viewed 2195 times
Stock 3rd Gear Dyno SAE.png
Stock 3rd Gear Dyno SAE.png (32.41 KiB) Viewed 2186 times

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New Modifications

Post by west_minist » Fri Feb 17, 2017 1:10 am

New Mods Application: Subaru WRX/STi JDM Twin Scroll Turbocharger
Horsepower: 470HP

Specs - http://www.xtremeracingtuning.com/forum ... ?f=8&t=450
  • Custom low friction low inertia ceramic ball bearing CHRA
  • Custom high flow low inertia 56.5mm turbine wheel
  • 71mm XT Compressor wheel
  • 47lbs per min
  • BPT Twin Scroll Turbine housing

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v2 @ wastegate pressure

Post by west_minist » Thu Mar 02, 2017 10:34 pm

Still under wastegate pressure of 15psi by 2psi and way under normal operating boost of 19-20psi.
GpN2v2 4th Gear Dyno SAE.png
GpN2v2 4th Gear Dyno SAE.png (46.84 KiB) Viewed 2006 times

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Re: JasonW - 2004 JDM Impreza WRX STI 2.0L 6MT - GpN Tuning

Post by west_minist » Thu Mar 16, 2017 5:50 pm

We discovered issues with the stock BOV opening at 5psi. This will be fix.

Update 2017-03-17
We are still suffer boost issues and need to review for exhaust header leaks, including the wastegate operations.

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Re: JasonW - 2004 JDM Impreza WRX STI 2.0L 6MT - GpN Tuning

Post by west_minist » Sun Jul 09, 2017 9:41 pm

Update: 2017-07-09

A new Turboback system was installed and all flow issues been fix. Tuning has restarted and we are now reaching MAF limit and will blend to VE very soon.

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Blouch Dom 1.5XTR TwinScroll @ 21psi | IAT-33C

Post by west_minist » Sat Jul 15, 2017 11:18 am

BlouchDom15XTR-TS @ 21psi-IAT-33C.png
BlouchDom15XTR-TS @ 21psi-IAT-33C.png (30.76 KiB) Viewed 1603 times

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v13e 3rd Gear Dyno SAE @ 25.5psi | IAT=30C

Post by west_minist » Thu Sep 14, 2017 7:32 pm

v13e 3rd Gear Dyno SAE @ 25.5psi.png
v13e 3rd Gear Dyno SAE @ 25.5psi.png (38.95 KiB) Viewed 1418 times

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v16a 3rd Gear Dyno SAE

Post by west_minist » Tue Oct 24, 2017 9:29 pm

v16a 3rd Gear Dyno SAE.png
v16a 3rd Gear Dyno SAE.png (22.91 KiB) Viewed 1272 times

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GSC Cams recommendation

Post by west_minist » Thu Oct 26, 2017 10:49 pm

GSC Power-Division S1 camshafts for the EJ20 JDM/EURO 2.0L STi.
https://www.power-division.com/gsc-powe ... -avcs.html

Intake 268 / 225 @ .040" / Peak Lift 10.8mm / Centerline 130
Exhaust 266 / 224 @ .040" / Peak Lift 10.4mm / Centerline 113

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