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Old 04-24-2018, 04:48 PM   #26
TDagen
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Member#: 163648
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: Xona 7864 UHF
Vehicle:
2002 WRX
V9 6mt R180 Brembos

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This is awesome!

Can't wait to see more.
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Old 04-28-2018, 09:15 PM   #27
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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First event with this setup in the books, didn't go horribly, nothing broke, my driving is rusty at best, tires rubbed too much, I've definitely got some more suspension / alignment work to do, but it was very fun to be out playing again.

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Old 04-28-2018, 10:44 PM   #28
Blingstrom
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Member#: 322188
Join Date: Jun 2012
Chapter/Region: MWSOC
Location: Kansas
Vehicle:
05 STi/06 FXT
CGM/RBP

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Very nice build so far.

Do you have rear camber plates on the coilovers? I think that would help you gain some inboard clearance and camber. Good luck with the rest of your build and season!
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Old 04-28-2018, 10:53 PM   #29
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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Quote:
Originally Posted by Blingstrom View Post
Very nice build so far.

Do you have rear camber plates on the coilovers? I think that would help you gain some inboard clearance and camber. Good luck with the rest of your build and season!
Not at the moment, but they are on their way, along with some better coilovers (fortune 510s) / stiffer springs (10k). Unfortunately, I'll probably have to impatiently wait 2 or 3 more weeks before they arrive though.
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Old 05-16-2018, 08:09 PM   #30
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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2nd low key event in the books a couple weekends ago. I reduced the caster a bit and increased front camber to 3.75, no more rubbing up front. No change in the back yet, but new coilovers with rear camber plates and stiffer springs are on the way. Car felt good but I didn't drive overly well.



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Old 05-17-2018, 12:43 AM   #31
combatspace
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Member#: 485855
Join Date: May 2018
Location: North Jersey
Vehicle:
2002 WRX
Black

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Sub'd
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Old 05-17-2018, 10:55 AM   #32
wrxflyer
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Member#: 432253
Join Date: Oct 2015
Location: The Lone Star State
Vehicle:
2018 WRX-Package 12
Pure Red

Thumbs up Always...

...love it when a plan comes together successfully.

There is a certain grace to these wagons.

Watching future progress.
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Old 07-13-2018, 06:04 PM   #33
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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Quick version of month or two of updates...

- Finally installed the r180 and the whiteline adjustable control arms that I've had sitting around uninstalled for years. Currently running roughly zero toe in the rear and 1.8 degrees camber on both sides.



- Picked up some Fortune Auto 510s with 10k swift springs and adjustable camber plates front and back from Cygnus Performance. Even though the springs are stiffer the ride quality on our crappy Chicago streets are noticeably better than the old BC were.



- Went out for another fun local autoX, things wen't okay but I wasn't happy with the balance (or lack there of), went a touch too low in the rear with the new coilovers and am still encountering rear tire rubbing. Additionally it got fairly warm in the afternoon, IATs got pretty high and it felt like the ECU pulled quite a bit of timing after a few runs. I need to get serious about fabbing something so that my hood scoop blows on my IC better and I need to get back into the habit of spraying my IC between runs. I should also get more serious about the standalone / flex fuel ideas.

- I got my hands on some corner scales, haven't change anything yet but I did get a quick baseline and it's about as bad as it felt:




*with 1/2 tank of gas and my 209 lbs in the driver seat

Last edited by tracknerd; 07-15-2018 at 07:23 PM.
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Old 07-15-2018, 05:13 PM   #34
tracknerd
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Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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I played with the scales a bit, got cross weights even (still with 1/2 tank of gas and me in the driver's seat), most adjustments were made in the rear to add height and reduce rubbing while I was at it.



This was my first time corner balancing, the amount of time required and number of adjust / reweigh iterations was definitely more than I expected. It'll be a couple weeks before I can get out and play again, I'm very curious to see if / how much better the balance will feel.

Last edited by tracknerd; 07-15-2018 at 07:26 PM.
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Old 07-15-2018, 06:15 PM   #35
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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Your last 2 pics aren't showing up.
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Old 07-15-2018, 07:27 PM   #36
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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Quote:
Originally Posted by T-37 View Post
Your last 2 pics aren't showing up.
Oops, thanks, should be fixed now.
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Old 07-28-2018, 05:32 PM   #37
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

Default Unexpected cross roads: light weight vs tires

Now that I've got weight info for the car, with the weight being lower than I expected, I can't help but think about future wheel/tire plans vs weight reduction. Current SM rules require a minimum of 1800 lbs + (300 lbs * (2.5 + 1.4) or 2970 lbs for wide tires or 2770 lbs if I stick with 275s. Current driverless weight is roughly 2973.

I had planned on eventually going super wide on tires some day when I eventually get slicks. However, I already have all of the parts needed to fab up an aluminum exhaust that will shave at least 20 lbs compared to my current reasonably nice sounding but very heavy SRS cat-back. I also currently only have one of my race seats installed, the other seat being the stock limited (heated / leather) seat. Just doing the things that I already have in motion will put me well under minimum weight for wider tires. Which leaves me substantially tempted to shoot for the 2770 lb mark instead.

Current weight saving thoughts include:
  • Remove under dash parts for the otherwise already deleted AC and cruise control.
  • Remove a few aftermarket sensors and control modules that I no longer pay attention to.
  • I still have a stereo and quite a bit more interior than is required (only parts currently removed were removed to improve dog and bike hauling functionality).
  • Though very nice, the front ST-40s are probably overkill for autoX, lighter brakes could shave some decent weight.
  • The rear H6 disks / adapter with stock calipers could also be swapped out with something like Wilwoods.
  • The current iteration of my catted downpipe is definitely heavier than it needs to be.
  • There are lighter flywheel options.
  • I *think* that deleting the rear wiper/sprayer is legal?
  • Race steering wheel instead of stock steering wheel with air bag (I'll probably resist this one as this car sees city use and people suck).
  • I'm tempted to do something different on the intake manifold front eventually (either the plastic one I have laying around or fab up a aluminum one).
  • Tubular trailing arms.
  • Tubular rear sway bar.
  • Tubular non adjustable lateral links?
  • Tubular front control arms.
  • Delete the grounding kit, or will that actually still do anything after I finish my stand alone install?
  • Simplify fuel filter mounting.
  • Simplify bypass valve recirculation plumbing.

All of that would add up to non trivial amounts of weight, but probably no where anywhere near the full 216 lbs or so allowed. Anything else legal that I'm missing?


The more important question however, which path would perform better and/or actually be more fun to drive?
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Old 09-11-2018, 01:00 PM   #38
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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A few weeks ago I wired in a DCCDpro (and started the wiring for a stand alone ecu). I also swapped in an 05 sti gauge cluster before realizing that my DCCDpro didn't actually have the outputs for for the cluster or have a way to add them without sending it back in.

Last weekend was the final event of the year for my favorite local auto-x group. Played with the DCCDpro quite a bit, it seriously changes the car's behavior, even more than I expected. I wish I'd done it sooner.

Here's the course from last weekend:


Even with a boat load of runs, I couldn't quite string together a lap without little mistakes here and there and it took me over half the day before I found where I wanted the dccd set, but here's my best of the day:


Last edited by tracknerd; 01-20-2020 at 12:59 AM.
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Old 10-30-2018, 01:25 AM   #39
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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Not directly a build update, due to the need to clear up some space to slowly build up my spare 2.5, I finally started tearing down my old 2.0 that was in the engine bay fire a couple years ago. It looks like the fire was just a blown cam seal puking oil directly on a nice hot header. Other than the cam seal and melted plastic bits, it actually all looks salvageable.

On the spare 2.5 front, I know that I should spend my time and money on better diffs, some basic aero and of course more seat time and I had only planned on a simple but stronger 400-ish wtq build possibly with w25 heads, but thanks to a few fun threads on here recently, I'm having a really hard time not compulsively thinking about bigger power.
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Old 12-21-2018, 10:07 PM   #40
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

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I finally discovered Virtual Dyno, I've got a million romraider logs laying around, got some pretty consistent numbers out of it, not sure how it actually stacks up to a real dyno. Fun to play with though and fun to put numbers to various iterations of my tune.


Last edited by tracknerd; 01-20-2020 at 01:02 AM.
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Old 01-25-2020, 12:28 AM   #41
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

Default Busy year of life...

Life got busy and I haven't actually had time for the WRX much in the last year or so. In that time, I've started a few projects but haven't quite finished anything of note and I did zero driving events.

Past year highlights include:

- Got the link G4+ mostly wired in, complete with an add on wiring harness including support for everything needed for AVCS, flex fuel and separate connectors to make switching back to the OEM ECU for street use fairly easy. I still have a sensor or two left to wire in, a couple wires to reroute / cleanup, then diving into my first adventure in stand alone tuning.






- Cleaned up / relocated sensor modules and VSS / DCCD controllers:






- Slowly stock piling parts to rebuild my spare short block as a closed deck +2 build.

JE Stroker Pistons w/ tool steel wrist pins:



Manly +2 rods with ARP 625+ cap bolts:




- Bumped up my EWG springs a bit to 0.9 bar in preparation for a bit more boost when I get flex fuel going:




- Welded in a solid dump tube (had crappy flex tubing that rusted out before). Definitely not my prettiest welds but the juxtaposition of an old ugly stainless MIG weld next to the new TIG welds is notable. That said, the MIG weld is 4 Chicago winters old now and holding up much better than I expected:




Upcoming projects:

- Higher current fuel pump wiring, w/ inertia switch
- Walbro 450 with hydramat pickup
- G4+ completion / tuning
- Light weight cat back
- ?
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Old 01-26-2020, 03:15 PM   #42
tracknerd
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Member#: 53793
Join Date: Jan 2004
Chapter/Region: MWSOC
Location: Chicago, IL
Vehicle:
02 WRX Wagon
PSM

Default Modulated fuel pump "hard wire".

Yesterday I wrapped up adding a hardwired-ish fuel pump supply. The positive side uses a standard hard wired relay setup, but the ground side goes through the OEM fuel control module, but with significantly increased wire sizing and shortened ground path.


Parts:
  • Summit Racing Fuel Pump Relay kit: SUM-890023
  • 30 Amp breaker with a reset / cut switch
    - Chosen over the auto reset one that came with the summit kit to allow easily killing power to the fuel pump, plus I didn't like the exposed connectors.
  • Standard Motor Fuel Pump Cut-Off Switch: FV7
    - There are more affordable junk yard options, but I didn't have time to go hunting.
  • Extra 10 gauge wire in both red and black.
  • Extra 18 gauge wire yellow / black striped
  • "Add a circuit" fuse tap
  • Fuel tank terminals: Sumitomo 8240-4828
  • Control module terminals: Sumitomo 8240-4932
    - Thank you Corsa Technic for help identifying these.
  • Copper lugs for ground connections
  • Adhesive Lined Heat shrink
  • Zip ties and electrical tape to keep things tidy

Time:

About 2 hours for the final approach, but I took several detours and changed my mind several times on several details, so it took quite a bit longer. In retrospect, I should have just bought a relay and more wire instead of starting from the summit kit.


I used an "add a circuit" fuse tap from fuse #13 for the keyed power because tapping into the keyed power to the control module indeed wasn't quite reading zero current at the relay with the key off (several other write ups / posts had mentioned this, but I was skeptical) and I was paranoid of draining my tiny battery.



The constant 12V goes directly from the battery to the breaker, then through the firewall and joins the keyed power wire running along underneath the driver's side trim, then along the back seat bar to the relay that I stashed under the passenger side's backseat trim piece:



The switched power and relay trigger wires run from the relay back to the inertia switch mounted near the passenger tail light:



The ground wire for the fuel controller and the modulated ground wire from the controller to the fuel pump were both increased to 10 gauge, with fresh terminals. The positive out of the controller was de-pined, left unconnected and tucked away.



The wires to the fuel tank connector follow the OEM path under the back seat and squeeze into the stock connector (very tight fit). The old terminals and wires are just electrical tapped out of the way for now.

The factory connector isn't technically E85 compatible, so for the future I'm very tempted to use some bulkhead fittings instead but I'm not sure if there's actually a risk there or not as I think many have used it with E85 for years with out issues.



With all the extra fuel that I'll eventually be flowing, I really like the idea of the inertia switch in case things every go horribly wrong. I gave it some pretty serious test thumps, plus have already hit a couple of ridiculous Chicago war zone potholes this morning that felt worse than a fender bender and it seems properly good at ignoring false positives but properly shuts off when it gets a hard enough impact.

Last edited by tracknerd; 02-07-2020 at 11:17 PM.
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