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Old 02-02-2017, 03:19 PM   #1
iRally
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Member#: 446642
Join Date: May 2016
Location: San Diego
Vehicle:
2013 WRX HATCHBACK
World Rally Blue

Lightbulb 2001 GC8 JDM EJ207 v7 Swap checklist

Hey guys, Iím making a checklist for my swap and I just wanted a few opinions on my list just to make sure Im not missing anything. The swap im doing is a JDM EJ207 Ver 7 into a USDM 2001 gc8 (gm6 coupe) 2.5rs. I would like to use the USDM 2011 STI Transmission but not an entire driveline sti swap. I would like to retain as much of the standard parts as possible and later on if need be I can do the rest of the STI swap. So here goes the listÖ

2001 2.5rs (blown motor)
JDM Ver7 ej207 (with the obvious parts, TMIC, turbo, wiring harness, exhaust mani, intake mani, ect.)
JDM ej207 ECU (reflash for poopy Cali fuel)
Full Exhaust
Fuel Pump Walbro 255lph
Fuel Pump Controller??? Recommendations?
2011 USDM STI tranny
VSS Pro for speedometer conversion
USDM STI flywheel & clutch
WRX intake and MAF
USDM BCS
WRX/STI Starter
Late 2004-2007 WRX front axles
2006 WRX front cross brace (fits 2.5rs arms with no shimming)
2006 WRX front swaybar
STI center driveshaft
Transmission cross braces
WRX R160 Rear diff w/ LSD (use stock 2.5rs axles)
STI Brembo Brakes with 5x100 Rotors
Misc radiator/ heater core hoses

Here is where I am stumpedÖ do I have to switch to a wrx steering rack also? Or can I retain my 2.5rs one since im keeping the 2.5rs hubs and control arms. That being said ill probably use the v7 PS pump and solve that issue of fitment if any of the hardlines donít match up when I get there. Also I would like to use the 2.5rs AC pump instead so I donít have to breach the AC system but if im forced to use the v7 pump and splice it for the 2 wire setup I will.

Lastly am I missing anything major, anything obvious that Iím just having a brain fart over? Besides more time, money, and sacrifices to the Subaru gods?

Thanks in advance!

When the time comes Iíll be taking tons of photos to make a writeup and build thread.
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Old 02-03-2017, 08:05 AM   #2
Titter
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Member#: 416107
Join Date: Mar 2015
Chapter/Region: International
Location: Ontario, Canada
Vehicle:
2002 WRX Wagon
EJ207 Spec C 4EAT

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seems you did your homework. looks like a solid list

my only suggestion would be a new sti rack. they are 13:1 like the old RA quick racks.
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Old 02-03-2017, 03:43 PM   #3
iRally
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Quote:
Originally Posted by Titter View Post
seems you did your homework. looks like a solid list

my only suggestion would be a new sti rack. they are 13:1 like the old RA quick racks.
Do you have to buy a new steering rack or can you use the original 2.5rs one? The sti one sounds nice, when I drive my 13 WRX vs my RS I love the steering of the WRX.
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Old 02-04-2017, 07:42 AM   #4
Titter
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Member#: 416107
Join Date: Mar 2015
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Location: Ontario, Canada
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2002 WRX Wagon
EJ207 Spec C 4EAT

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that, i do not know sorry.

but a 16 yr old steering rack should be considered to be replaced anyways.
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Old 06-20-2017, 12:39 AM   #5
rdp2401
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Join Date: Aug 2007
Chapter/Region: SCIC
Location: Simi Valley
Vehicle:
1993 Impreza L
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im trying to do something similar but it is with a ej205 into a gc8 (1993 Impreza L). i have full engine and transmission and ecu. would i need to update or do anything else to complete the swap? would i need to change sway bars and axels as well? im having trouble finding information for all this.
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Old 06-23-2020, 01:35 PM   #6
jdmstyler
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Any issues with running 2004 STI Front axles, that's what I thought would work from researching? I bought a JDM 2.0 swapped 2.5rs and need to replace the front passenger axle.. Thanks in advance!
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