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-   -   pY's 99 Impreza L (GC4), road to STI (https://www.rs25.com/forums/f145/t249159-pys-99-impreza-l-gc4-road-sti.html)

00redOBS 01-20-2019 02:11 PM

pY's 99 Impreza L (GC4), road to STI
 
1 Attachment(s)
The goal is to have a "budget" STI powertrain swap. It's a slow process. I'm kind of lazy...

00redOBS 01-20-2019 02:11 PM

reserved.

00redOBS 01-20-2019 02:12 PM

2017
 
February 2017

Originally I saw this car a month or so prior in a Honda/VW dealership inventory. The paint on the car was extremely faded so I decided to pass up on it.
Fast forward to February, I see it again but a private dealership had acquired it and gave it a new paint job. Since I couldn't find the perfect 99-01 Impreza L (GC4), I made a last minute decision to drive from KY/TN to FL to look at it. Paint job was almost on par with MAACO and the 4EAT pan leaked a little bit. The body was straight and the price was cheap, that was good enough for me.


The car was on beater duties until I can finish parting out my 00 Impreza. In the meantime I ended up adding a few things.
  • 02 WRX steering wheel.
  • 02 WRX front seats.
  • 02-07 all weather mats.
  • 00 Impreza cruise control.
  • 00 Impreza keyless entry.
  • 2.5RS 6-spoke wheels.



https://i167.photobucket.com/albums/...319_130054.jpg
https://i167.photobucket.com/albums/...319_130106.jpg
http://i167.photobucket.com/albums/u...319_130129.jpg
http://i167.photobucket.com/albums/u...319_130230.jpg
http://i167.photobucket.com/albums/u...319_130245.jpg
http://i167.photobucket.com/albums/u...319_130303.jpg
http://i167.photobucket.com/albums/u...319_130313.jpg
http://i167.photobucket.com/albums/u...319_130422.jpg
http://i167.photobucket.com/albums/u...319_130500.jpg
http://i167.photobucket.com/albums/u...319_130819.jpg
http://i167.photobucket.com/albums/u...319_130732.jpg
http://i167.photobucket.com/albums/u...319_130658.jpg
http://i167.photobucket.com/albums/u...319_130606.jpg
http://i167.photobucket.com/albums/u...319_131156.jpg
http://i167.photobucket.com/albums/u...319_131213.jpg
http://i167.photobucket.com/albums/u...319_131228.jpg
http://i167.photobucket.com/albums/u...319_131300.jpg



March 2017

Picked up a set of 06 WRX calipers with rotors while I was back in WI.

http://i64.tinypic.com/mt4bc1.jpg


April 2017
Back in early-March while I was in WI there was a 07 Impreza STi being parted out. I had to pass on the drivetrain because I had no room to haul it back to KY/TN. Mid-April comes around and it was still listed for sale. I was pretty much dead set on having a 07 STi drivetrain (longer gears). Well it was now or never. Drove back to WI on a Friday and made a deposit, it would be ready by Monday. Didn't get the driver side hub/spindle and axle because it was hit on that side.



Packed it into the back of a 09 Versa Hatchback.

http://i63.tinypic.com/u7hae.jpg


http://i65.tinypic.com/1z642gz.jpg
http://i65.tinypic.com/977byb.jpg
http://i67.tinypic.com/2rhsn4m.jpg


December 2017
I've decided to stick to 5x100 hubs because of the wheels that I want. The optional BBS wheels for the 02-05 WRX.


Since I want to use the R180 rear diff I would need custom axles that will allow me to use the R160 rear hubs. The solution was easy, suberdave custom races.


http://i63.tinypic.com/20zw808.jpg
http://i66.tinypic.com/s248ed.jpg
http://i63.tinypic.com/ipxe0k.jpg
http://i67.tinypic.com/21owisp.jpg


/

scruff3333 01-20-2019 03:56 PM

Into see were you take her.

00redOBS 01-20-2019 04:09 PM

2018
 
February 2018

Removed the stock 1999 Impreza L powertrain.

https://i167.photobucket.com/albums/...ichtoneHDR.jpg
http://i167.photobucket.com/albums/u...htoneHDR_1.jpg
http://i167.photobucket.com/albums/u...ichtoneHDR.jpg
http://i167.photobucket.com/albums/u...htoneHDR_1.jpg



March 2018
  • Removed the dash and bulkhead harness.
  • 02 WRX engine cradle.
  • 02 WRX manual pedal box. For perfect fitment use a GC/GM/SF pedal box.
  • 07 STi drivetrain.
  • 02 WRX rear hubs.
  • 06 WRX rear calipers using BA brake adapters.
  • 02 WRX rear sway-bar.


https://i167.photobucket.com/albums/...ichtoneHDR.jpg
http://i167.photobucket.com/albums/u...ichtoneHDR.jpg
https://i167.photobucket.com/albums/...91966785_n.jpg
http://i167.photobucket.com/albums/u...71320093_n.jpg




April 2018
  • Merged bulkhead harness (iWIRE #271) that was previously in my 00 Impreza. I've also added AVCS. P̶l̶a̶n̶s̶ ̶a̶r̶e̶ ̶t̶o̶ ̶u̶s̶e̶ ̶a̶ ̶G̶D̶B̶A̶/̶B̶ ̶E̶J̶2̶0̶7̶. Ended up with a GDBG EJ207.
  • Somewhat finished putting the dash back in.
  • Upgraded to a SVX BMC.


https://i167.photobucket.com/albums/...%20install.jpg
http://i167.photobucket.com/albums/u...%20harness.jpg
http://i167.photobucket.com/albums/u...%20install.jpg
http://i167.photobucket.com/albums/u...121_091738.jpg

May 2018

Arrival of some parts.
  • FP Green HTZ.
  • ID1300x with PnP adapters.
  • Aeromotive 340LPH.
  • AEM MAP and IAT sensor.
  • EXEDY OE clutch kit.



https://i167.photobucket.com/albums/...reen%20HTZ.jpg
http://i167.photobucket.com/albums/u...0L/ID1300x.jpg
http://i167.photobucket.com/albums/u...e%20340LPH.jpg
http://i167.photobucket.com/albums/u...0and%20IAT.jpg
http://i167.photobucket.com/albums/u...utch%20kit.jpg

June 2018

Found a set of GrimmSpeed ported exhaust manifolds with HiFlow crosspipe and STi braided brake hose set at a pick and pull, $23.

https://i167.photobucket.com/albums/...50904832_n.jpg

November 2018

Bought a RockSteady Tuning flex fuel kit.


https://i167.photobucket.com/albums/...206_175250.jpg


December 2018
  • Widened the track to GD non-STi width.
    • 06 2.5i lateral links.
    • 04 WRX control arms and sway-bar.
  • 02-03 WRX lowering coil springs.
    • GD non-STi rear struts (gets rid of the positive camber because of GD lateral links).
    • GC4 front struts.
  • STi braided brake hoses.
The struts/springs will be replaced with 04 STi struts/springs in the future if I can get my hands on a set.


http://i167.photobucket.com/albums/u...127_163018.jpg
http://i167.photobucket.com/albums/u...127_163032.jpg
http://i167.photobucket.com/albums/u...127_172302.jpg
http://i167.photobucket.com/albums/u...127_172320.jpg
http://i167.photobucket.com/albums/u...127_163956.jpg
http://i167.photobucket.com/albums/u...127_163808.jpg
http://i167.photobucket.com/albums/u...127_163830.jpg
http://i167.photobucket.com/albums/u...127_163851.jpg


/

00redOBS 01-20-2019 04:32 PM

Sold the EXEDY LW flywheel that came with my 07 STi drivetrain and bought an OEM 08+ STi flywheel.


https://i167.photobucket.com/albums/...0FF501%201.jpg
https://i167.photobucket.com/albums/...206_174957.jpg

00redOBS 01-20-2019 05:06 PM

reserved.

scruff3333 01-20-2019 06:13 PM

"Since I want to use the R180 rear diff I would need custom axles that will allow me to use the R160 rear hubs. The solution was easy, suberdave custom races."

Same path I'd like to take.

00redOBS 01-20-2019 06:42 PM

Quote:

Originally Posted by scruff3333 (Post 3607273)
"Since I want to use the R180 rear diff I would need custom axles that will allow me to use the R160 rear hubs. The solution was easy, suberdave custom races."

Same path I'd like to take.


Got to be careful with which R160 axle you use though. Forgot I used a GD R160 axle while I still had the GG/GC/GM/GF track width. Had a hard time bolting the hubs back up to the lateral links. I ended up changing the track width to GD non-STi all around (IIRC 04 STi is still the same as WRX and 2.5RS/2.5i).

scruff3333 01-21-2019 08:36 AM

Quote:

Originally Posted by 00redOBS (Post 3607275)
Got to be careful with which R160 axle you use though. Forgot I used a GD R160 axle while I still had the GG/GC/GM/GF track width. Had a hard time bolting the hubs back up to the lateral links. I ended up changing the track width to GD non-STi all around (IIRC 04 STi is still the same as WRX and 2.5RS/2.5i).

My whiteline adjustable lat links will help me there. Still something to consider.


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