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Old 12-30-2015, 10:22 AM   #1
Mercvt
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Member#: 428432
Join Date: Aug 2015
Location: VA
Vehicle:
2009 Wrx hatch

Default 2009 WRX Hatch, Blouch 440XT, IWG vs EWG, 117k Miles Stock Internals/Transmission

It all started with a rattle on my uppipes heat shield. I replaced it with the grimmspeed uppipe. I then began to throw overboost code (P2044) on a 50*F day (4th WOT Pull) and had a retune to combat that. I went out on a 20*F night and overboosted again (3rd or 4th gear WOT). So I decided to go EWG (Dumping to Atmosphere). Below are the results with the parts listed below (IWG, Uppipe, etc.)

Location: Agile Automotive Performance, Forest Hill, MD
Ambient Temp: ~60 F
Elevation: Don't know
Weather: Overcast

Car: 2009 WRX Hatchback
Tuner: Hill McCarty
Dyno Info: DynoPack
Transmission: 5spd, stock clutch
Gear: 3rd - I think
Peak HP at RPM: 351whp
Peak Torque at RPM: 348wtq
Baseline hp/tq for a stock on same dyno: ~230 whp/235wtq
Target Boost: 20
Target AFR: 11:1 - I think
Fuel: 93 (Sunoco)
Relevant Engine/Power Modifications:
Blouch 440XT 8cm^2 hot side (IWG)
ID1000 injectors
DW65C Fuel Pump
Turbo XS FMIC
Perrin catted DP
Perrin 3" catback
Cobb 3 Port EBCS
Perrin CAI/Inlet
Grimmspeed Uppipe
Stock internals (115,000 Miles)
Driveline Modifications: ACT Street Clutch (Rated 420 ft/lbs)

HP/Tq listed above are the non corrected readings (Solid Lines).



The following dyno results are after the ewg (Tial 38mm Vband) install. All the other mods remained the same. The ambient temperature and weather conditions were about the same. I had 117,000 miles on the motor.



So boost became rock solid as a result of the ewg (gonna muffle it the dump tube at some point-So damn loud ). Holds 20psi to close to redline.

IWG/EWG WHP: 351/370........+19whp
IWG/EWG WTQ: 348/356........+8wtq

Most importantly no more boostcreep or spikes.
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Old 01-01-2016, 04:43 PM   #2
krisk
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Member#: 333048
Join Date: Sep 2012
Chapter/Region: NWIC
Location: Seattle
Vehicle:
2013 WRX
VF52+E85+TP Road Tune

Default

I have not seen too many 440xt results, thx!
When do you hit 20PSI on the street in 3rd?
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Old 01-01-2016, 09:34 PM   #3
freddy121389
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Member#: 294644
Join Date: Sep 2011
Chapter/Region: MAIC
Location: Washington DC
Vehicle:
2011 WRX Agile Auto
DGM 440whp 420wtq

Default

Not bad, Hill does great work.
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Old 01-02-2016, 12:40 AM   #4
DGM7rex
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Member#: 395340
Join Date: Jul 2014
Chapter/Region: NESIC
Location: Bristol,CT
Vehicle:
2013
WRX

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Nice !
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Old 01-06-2016, 08:42 PM   #5
Mercvt
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Member#: 428432
Join Date: Aug 2015
Location: VA
Vehicle:
2009 Wrx hatch

Default

Quote:
Originally Posted by krisk View Post
I have not seen too many 440xt results, thx!
When do you hit 20PSI on the street in 3rd?
When I had the factory uppipe: 4250 rpms
When I had the grimmspeed non ewg uppipe: 4000 rpms
Now with the ewg on a 60°day: 3800 rpms.(could be better on a colder day but I need to data log to confirm with my current setup)
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Old 01-06-2016, 08:56 PM   #6
be0tch
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Member#: 66206
Join Date: Jul 2004
Vehicle:
2005 WRX STi

Default

If anybody else is suffering from serious tilted head looking at the originals:



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