STX WRX Setup / Discussion thread

Butt Dyno · 01-21-2008, 02:43 PM

STU, BSP, ESP and most of DS have their own thread. It only seems fair

I tried to get a bunch of the relevant threads together here for newbies and such:

Rules: If it doesn't say you can, you can't

The Rules Sticky: Auto-X Rules: Read This First
http://forums.nasioc.com/forums/showthread.php?t=174189

STX General:

How would you do STX? (general advice thread)
http://forums.nasioc.com/forums/show...&highlight=stx

Help me setup the STX Wagon!
http://forums.nasioc.com/forums/show...=clarification

Listing of *ALL* STX legal mods with subjective priorities
http://forums.nasioc.com/forums/show....php?t=1181271

Tires:

235-40/17 vs 245-40/17 STX
http://forums.nasioc.com/forums/show...&highlight=stx

Bridgestone Potenza RE-01R vs Yoko Advan Neova AD07s for STX
http://forums.nasioc.com/forums/show...&highlight=stx

RE01R vs. Advan Neova
http://forums.nasioc.com/forums/show....php?t=1283791

Power mods:

STX, boost maps, dyno tuning, etc (STX-legal dyno plots as well as power discussion)
http://forums.nasioc.com/forums/show...&highlight=stx

STX Power
http://forums.nasioc.com/forums/show...&highlight=stx

How STX legal map makes power?
http://forums.nasioc.com/forums/show...&highlight=stx

The Great Exhaust Clarification Debacle of 2007:

August clarification: ST* - the Throwdown - 2007
http://sccaforums.com/forums/thread/255144.aspx

September Fastrack posted online - ST news
http://sccaforums.com/forums/thread/259938.aspx

NASIOC clarification thread:
http://forums.nasioc.com/forums/show...=clarification

Post-clarification exhaust setup database:
http://forums.nasioc.com/forums/show....php?t=1364415

Quest for STX-legal WRX:
http://forums.nasioc.com/forums/show...&highlight=stx

ST* - emissions legal or not?
http://sccaforums.com/forums/thread/278185.aspx

Suspension setup:

STX swaybar and spring rate data
http://forums.nasioc.com/forums/show...&highlight=stx

WRX in STX (flipping coilover springs question)
http://forums.nasioc.com/forums/show...&highlight=stx

Faster with a stiffer front swaybar?
http://forums.nasioc.com/forums/show...&highlight=jic

More camber, less stopping power?
http://forums.nasioc.com/forums/show...ight=pyrometer

Other:

What essential go fast STX mod would you buy?
http://forums.nasioc.com/forums/show...&highlight=stx

Also I figure folks can post their setups here and ask general setup questions like in the STU thread. Hope it's helpful. I will post mine at some point

john

PhilC · 01-21-2008, 02:55 PM

Our setup is pretty much still what is listed on the teamsoloracer.com site. http://www.teamsoloracer.com/drivers/pjcroy.php It hasn't been updated in a while but the basics are there. Car is still for sale if anyone is interested in an essentially fully prepped nationally competitve car rather than doing the development themselves. Buy it for the cost of the car and less than 1/4 of the parts cost.

Sideshowbob · 01-21-2008, 03:22 PM

STX setup- Buy a really fast 1991 Honda Hatch Si, install front LSD, and win.

1/4 of the cost, just don't go to pro's

Butt Dyno · 01-21-2008, 11:06 PM

Quote:

Originally Posted by Sideshowbob

STX setup- Buy a really fast 1991 Honda Hatch Si, install front LSD, and win.

1/4 of the cost, just don't go to pro's

You stole that from Hoppe. It's in the second link

http://forums.nasioc.com/forums/show...&highlight=stx

Quote:

Originally Posted by planetarygear

How would you do STX?

Quote:

Originally Posted by trhoppe

91 Civic, STS mods, high flow cat, slip.

Quote:

Originally Posted by planetarygear

You have a 2005 WRX and a fairly decent budget.

Quote:

Originally Posted by trhoppe

doh!

-K&N Typhoon
-Intake hose
-parts bin turbo
-equal length header
-good downpipe with high flow
-straightpipe
-ECUtek

-swaybars/endlinks
-Koni double setup with custom housings/camber plates
-pimpy rear lateral links
-pimpy big brake kit thats lighter then stock with carbotech pads

-seats
-lightweight battery
-light 17x8 with your choice of 245/35/17
-seat time

-Tom

STFU STi · 01-21-2008, 03:40 PM

89's are lighter

awesome thread, john

thrdeye · 01-21-2008, 04:20 PM

My car's pretty much good to go felt great at the subaru challenge (#1 in pax), but I'm still working on getting it to comply to this emissions bull****.

K&N Typhoon short ram
Vibrant header and uppipe combo, coated inside/out and wrapped
Prodrive downpipe
Prodrive 3rd cat delete
straight pipe

BC Racing non-inverted coilovers 10K front/12K rear
Whiteline 24 MM front sway
Steering rack bushings
Goodridge stainless brake lines

17x8 Rota Boost with 245/40/17 RE01-R's
Hawker Odyssey Battery - PC 535

Alignment

-3.0 camber front
absolute 0 in the rear
Toe = I don't know.

Upcoming changes
-Emissions bull**** experimentation
-Hawk HP+ pads
-New rear rotors

That's really about it.

tracknerd · 07-22-2015, 04:59 PM

Quote:

Originally Posted by thrdeye

BC Racing non-inverted coilovers 10K front/12K rear

Quoting a million year old comment here but when you guys go with stiffer springs, are you getting your coilovers revalved or anything? I've got BC BRs, currently running 8k/8k swifts, but am itching for more stiffness (and a stiffer bar won't do as I'm wanting less front inner wheel lift when exiting turns). I keep hearing that you shouldn't go more than 2k stiffer than the original 8k/6k, but the move to 8k in the back didn't exhibit any perceivable change in the slightly above mediocre quality of damping, so I'm curious how much more can a guy get away with. I'm kicking around going with some combination of 10k and 12k, but don't want to end up with a pogo stick / boat and don't really want to spend extra money on the BCs to support such a though (I would rather put the money to toward some of those cheater RE-71R or better coilovers for next season).

BIGSKYWRX · 01-21-2008, 11:53 PM

yes- we definitely deserve our own thread- thanks for doing so!

I've started on my "quest" for a STX legal exhaust- gutted my oe uppipe (the STi one I have now has no provision for the egt) today- not the most fun two hours I've had

Heard from several folks that the Prodrive catted downpipe on it's own will prevent the P0420, so I bought a used one (it's off to SwainTech) will be teamed w/ a Prodrive de-catted center pipe (fingers crossed)

I'm thinking about about a short turn down to bolt on for events- good idea????

stock air box w/ STi panel filter-> Samco MAF hose->Samco turbo inlet

My STX map could probably be improved, sounds like TopSpeed is highly thought of

Currently on SA Koni's w/ Tarmac springs (6/5k) and RCE front/GrP N rears- it's nice for a daily driver, but I hope to firm things up a bit probably 8/7k- looking at DA AST's, also looking at zzyzx's new EM's- I don't see myself in 10+k for some reason

current alignment is -2.8/-1.5 (caster is ~ .5 more + than oe) toe ~ 2mm out f/r, will probably try and go a little higher in front -3.2 ish

ride height is 355 front/345 rear (this is a wagon- so ~ 30mm lower than stock)

27mm WL front sway bar/22mm rear, Poltec sway links front/rear

Grp N pitch/engine/tranny/rear diff mounts, transverse/lateral/trailing bushings

Brakes are FHI 4/2 pots w/ Ferodo 2500's, if I can free up some $ am considering a lighter BBK up front

Wheels are Enkei ES Tarmacs 17x8 and just found a set of Neovas in 235/40/17, for "summer" daily driving Enkei RC-T4's 17x8 wrapped w/ undetermined tire- possibly Advan Sports

Would like to shed a few lbs w/ seats, just need to find that $ tree

Scooby921 · 01-22-2008, 09:05 AM

I'm still working on the STX legal exhaust. I opted for a full APS turboback. I need to get back to my local shop and have them turn the CEL's back on so I can see whether or not it throws a code. I also need to gut a stock uppipe and put that back in so I have an EGT probe.

Outside of that, the car is as follows:
Suspension:
Ground Control housings, Koni 8611 dampers, Swift 7kg/mm front springs, Eibach 500lb/in rear springs, GC front and rear camber/caster plates
Whiteline 22mm FSB, 24mm adjustable RSB (set at softest)
Kartboy front and rear endlinks
Alignment = -3.25deg / -0.5deg camber f/r, 1.8mm measured toe out f/r, ride height set at 13.75" / 13.25" f/r (distance from hub center to fender)

Engine / power:
APS short ram
Crucial P&P&C headers (will be changing to GrimmSpeed as they are the new sponsor)
Stock gutted uppipe (in process)
APS turboback
GFB underdrive pulleys
AP w/custom tune (working on getting Doug from TopSpeed to make a trip to the midwest)
Makes 195hp and 198ft-lbs at the wheels (~45 more than stock).

Driveline:
TiC rear diff bushings
Kartboy outrigger bushings
TiC tranny x-member bushings
GroupN tranny mount
Kartboy shifter and all bushings

Brakes:
Cobb / Stoptech 332x32 BBK
BHP XPS pads up front
Carbotech Panther + in back
Stoptech lines front, goodridge lines rear
Motul RBF600 fluid

Wheels / tires:
Enkei RPF-1 17x8 +45
Yokohama Advan Neova 235/40R17 shaved to 5/32" (may switch to Toyo R1R just to test them)
Rota Torque 17x8 +48
Yokohama Advan Neova 235/40R17 full depth (daily driver / wet weather tires)

Weight savings:
Sparco Evo L driver's seat (w/ sliders and mounts)
Braille B2015 lightweight battery (15lb all-season version)

Added weight:
Takata 4-pt harness
STi corner splitters
Gauges, sending units, and a dash pod
Extra power outlet run inside the dash and over to driver's side for GPS unit
Will likely be adding the weight of a Traqmate data acquisition system

Car weighed in at 3260lbs w/ driver last summer when I had it aligned and balanced. That was with a rather full tank of gas and a driver than was 30lbs heavier. Setup was good enough for 1st and the Peru Nat'l Tour and 2nd at the Toledo Pro.

Scooby921 · 01-22-2008, 09:13 AM

For other information that people may find useful...

I talked to both Kumho and Toyo on the phone yesterday. The Ecsta XS is still in testing. They set the benchmark bar with the Advan Neova and say the XS is doing very well. Unfortunately it isn't due out to market until late summer so it not an option this solo season. Toyo said they only have 7 sizes of the R1R in production right now. A 245/35R17 is NOT one of those sizes. They do not have any testing results that they plan to share. The simply said they are leaving testing to outside sources so the results are unbiased. All I could get from them was that they are very proud of this tire and happy with how it turned out.

I will be sticking with a 235 for the year. I'm not sure whether or not I'll be going with Yokohama, Toyo, or Bridgestone though. Yokohama and Bridgestone have proven performance. Yokohama has not yet renewed their contingency program for this year so their tires are getting less affordable. Toyo matched Bridgestone's contingency so they are looking better. I might have to buy a set and head to a test and tune to compare them to my current Advans.

BIGSKYWRX · 01-22-2008, 09:52 AM

how are the Neovas at full tread for the wet?

the contingency pdf has a check off for Yokohama, I've got an email into them- hopefully they are (will) be on board???

Scooby921 · 01-22-2008, 12:05 PM

Quote:

Originally Posted by BIGSKYWRX

how are the Neovas at full tread for the wet?

the contingency pdf has a check off for Yokohama, I've got an email into them- hopefully they are (will) be on board???

Talked to Jenny White yesterday. She updated the forms and removed Yokohama as an option. If they are indeed going to have a contingency program then I might have to hold off on the forms until they are updated again. It would be nice to stay with Yokohama for the year as I only have 1 event on that shaved set and the full depth ones are still in the basement waiting to be mounted next summer. I might get by with only one new set for the year.

At full depth they are pretty good, but I happen to like the 'kook R-S2 better in wet weather. Tread pattern is very similar, but the softer sidewall is a little more forgiving on the wet surface. Then again, I did go play in the rain on 1/32" depth, old, heat-cycled Advans last summer and was quite impressed with how well they did. Hydroplaning is still hydroplaning, but it still didn't seem to push wide or spin with standing water in most corners of the course.

http://www.youtube.com/watch?v=KilnGfwCz0o
http://www.youtube.com/watch?v=OmRkj1Abe8A

STFU STi · 01-22-2008, 10:00 AM

yokohama contingency note:
http://forums.nasioc.com/forums/show...3&postcount=10

Scooby South · 01-22-2008, 11:06 AM

made it a part of the AutoX Sticky..

BIGSKYWRX · 01-22-2008, 02:52 PM

^ monsoon

never got a response back from Yokohama, will call this time

Scooby921 · 01-23-2008, 12:16 PM

Quote:

Originally Posted by BIGSKYWRX

^ monsoon

never got a response back from Yokohama, will call this time

Monsoon is about right. 6-8" of standing water in some areas and it only rained for 15 minutes! MI weather is just so fun

Butt Dyno · 01-25-2008, 12:53 AM

My setup (as of the end of last year):
Koni 1198's valved for Ground Control, in Ground Control housings
400 lb/in Eibach ERS (front)
450 lb/in Eibach ERS (rear)
Ground Control top mount camber/caster plates (front)
STi Grp N strut tops (rear)
Whiteline 27mm front swaybar w/ Kartboy endlinks
Cobb 23ish mm rear swaybar w/ Kartboy endlinks
Cusco rear strut tower brace
Alignment: -3.5 f, -1.2 rear
Ride height: 14" front, 14" rear

Engine/power:
PDE solid uppipe
TurboXS stealthback w/ Scoobysport muffler
Borla header
Samco inlet hose
K&N Typhoon
STX ProTune: 237 whp, 232 ft/lb
Odyssey PC680 battery

Drivetrain:
STi short shifter
STi Grp N engine mounts
STi Grp N transmission mount
Kartboy shifter bushing
Whiteline steering rack bushings (meh)
Redline Lightweight Shockproof fluid

Wheels/tires
17x7.5 JDM Ver7 STi wheels w/ RE070's
17x8 Enkei ES-Tarmac w/ ... ?

Brakes
StopTech 328x28 BBK (front)
StopTech H6 rotors (rear)
Hawk HPS pads
Super Blue

Other:
Lots of STi Ver7 rice (headlights, door cards, rear seats, cluster, grill, fog covers)
Sparco Evo seats

I had the raw times to snag the last trophy spot at the DC Pro, but hit the last cone on the damned course (after the finish line, doh). The car is definitely a lot more capable than I am.

In July the car weighed 3025 lbs w/o driver. My goal for this year was to drop that at least 50 lbs, more if possible.

Changes planned for 2008:
-Switching from big-ass Wings West spoiler to wingless
-New set of 17x8 RPF-1's w/ Direzzas (street/rain)
-Some new tires for the ES-Tarmacs (Yokos? Toyos? Waiting as long as possible on this one)
-TurboXS one-off two-cat turboback
-Spring rate / swaybar / ride height / alignment changes TBD.

With the 2007 setup and the Cobb rear bar at full stiff the car was plenty neutral but I was getting a lot of wheelspin at corner exit than I was with the bar at full soft. I am thinking about going to 500# front, 550# rear, and then swapping to the Cobb front swaybar (something like 23mm and ~8 lbs lighter) and running the rear bar on full soft. Any tweaking from there would be done with the alignment.

I don't know if 100 lb/in is enough to make up for the decrease in swaybar size, and if it is enough, I don't know if it will actually fix the wheelspin problem. It seems like very smart people disagree on the issue of whether achieving roll stiffness with bars and achieving roll stiffness with springs work out to be the same in terms of wheel lift/wheelspin. Cheapest/simplest option is to leave it alone, of course, which isn't that bad.

john

curbait · 01-25-2008, 02:37 AM

Quote:

Originally Posted by ButtDyno

My setup (as of the end of last year):
Koni 1198's valved for Ground Control, in Ground Control housings
400 lb/in Eibach ERS (front)
450 lb/in Eibach ERS (rear)
Ground Control top mount camber/caster plates (front)
STi Grp N strut tops (rear)
Whiteline 27mm front swaybar w/ Kartboy endlinks
Cobb 23ish mm rear swaybar w/ Kartboy endlinks
Cusco rear strut tower brace
Alignment: -3.5 f, -1.2 rear
Ride height: 14" front, 14" rear

Engine/power:
PDE solid uppipe
TurboXS stealthback w/ Scoobysport muffler
Borla header
Samco inlet hose
K&N Typhoon
STX ProTune: 237 whp, 232 ft/lb
Odyssey PC680 battery

Drivetrain:
STi short shifter
STi Grp N engine mounts
STi Grp N transmission mount
Kartboy shifter bushing
Whiteline steering rack bushings (meh)
Redline Lightweight Shockproof fluid

Wheels/tires
17x7.5 JDM Ver7 STi wheels w/ RE070's
17x8 Enkei ES-Tarmac w/ ... ?

Brakes
StopTech 328x28 BBK (front)
StopTech H6 rotors (rear)
Hawk HPS pads
Super Blue

Other:
Lots of STi Ver7 rice (headlights, door cards, rear seats, cluster, grill, fog covers)
Sparco Evo seats

I had the raw times to snag the last trophy spot at the DC Pro, but hit the last cone on the damned course (after the finish line, doh). The car is definitely a lot more capable than I am.

In July the car weighed 3025 lbs w/o driver. My goal for this year was to drop that at least 50 lbs, more if possible.

Changes planned for 2008:
-Switching from big-ass Wings West spoiler to wingless
-New set of 17x8 RPF-1's w/ Direzzas (street/rain)
-Some new tires for the ES-Tarmacs (Yokos? Toyos? Waiting as long as possible on this one)
-TurboXS one-off two-cat turboback
-Spring rate / swaybar / ride height / alignment changes TBD.

With the 2007 setup and the Cobb rear bar at full stiff the car was plenty neutral but I was getting a lot of wheelspin at corner exit than I was with the bar at full soft. I am thinking about going to 500# front, 550# rear, and then swapping to the Cobb front swaybar (something like 23mm and ~8 lbs lighter) and running the rear bar on full soft. Any tweaking from there would be done with the alignment.

I don't know if 100 lb/in is enough to make up for the decrease in swaybar size, and if it is enough, I don't know if it will actually fix the wheelspin problem. It seems like very smart people disagree on the issue of whether achieving roll stiffness with bars and achieving roll stiffness with springs work out to be the same in terms of wheel lift/wheelspin. Cheapest/simplest option is to leave it alone, of course, which isn't that bad.

john

What about tweaking what you already have. Like going to the soft setting on the rear bar or even a stock rear bar if you have it and adjusting tire pressure and or shock setting. Just a thought!

Butt Dyno · 01-25-2008, 08:32 AM

At one point I had -3.5 f, -.8 rear, 27mm front bar and 17mm rear bar (before I bought the Cobb) and it was well balanced - better than it was when I ended the year and without the wheelspin issues. I was running more rake than when I ended the year though. I guess with the bar at full soft (effectively 21mm I think) I could run a bit more rake or a little less camber in the rear and hopefully get the same effect.

One other thing is that I don't have independent height/preload adjustments so the only way I can run less camber in the rear is to raise the rear a little bit. But you're right, the smart thing is to try tweaking things before $$'ing

john

thrdeye · 01-25-2008, 09:26 AM

Quote:

Originally Posted by ButtDyno

One other thing is that I don't have independent height/preload adjustments so the only way I can run less camber in the rear is to raise the rear a little bit. But you're right, the smart thing is to try tweaking things before $$'ing

john

Use some camber bolts....

Butt Dyno · 01-25-2008, 09:28 AM

I have rear camber bolts (sorry, let them off the mod list)

thrdeye · 01-25-2008, 10:51 AM

Hmm...well, I'm at 0 in the rear with my bolts....

Butt Dyno · 01-25-2008, 11:00 AM

My guess is that I could easily get less if I had something with independent height and preload adjustments. I might have to go to a shorter spring of the same rate in order to get the results I'm after.

BIGSKYWRX · 01-26-2008, 06:39 PM

what's the general consensus (I'm sure there is no consensus

) on intakes for STX? power to be had? heat soak issues?

Scooby921 · 01-27-2008, 09:06 AM

Quote:

Originally Posted by BIGSKYWRX

what's the general consensus (I'm sure there is no consensus

) on intakes for STX? power to be had? heat soak issues?

I have one. I didn't do a before and after comparison to see whether or not it makes a big difference. I know a lot of the STX competition I've run against at national levels has had some form of short-ram or CAI. I don't think you're losing anything over stock with the heat soak. You are losing a couple pounds worth of plastic crap though. And you get to hear the turbo spool up and it makes you smile...well it at least makes me smile.

01-22-2008, 09:05 AM	#9
Scooby921 Merci Buckets Moderator Member#: 88606 Join Date: Jun 2005 Chapter/Region: MWSOC Location: Michigan Vehicle: 2018 Grand Cherokee Velvet Red Pearl	I'm still working on the STX legal exhaust. I opted for a full APS turboback. I need to get back to my local shop and have them turn the CEL's back on so I can see whether or not it throws a code. I also need to gut a stock uppipe and put that back in so I have an EGT probe. Outside of that, the car is as follows: Suspension: Ground Control housings, Koni 8611 dampers, Swift 7kg/mm front springs, Eibach 500lb/in rear springs, GC front and rear camber/caster plates Whiteline 22mm FSB, 24mm adjustable RSB (set at softest) Kartboy front and rear endlinks Alignment = -3.25deg / -0.5deg camber f/r, 1.8mm measured toe out f/r, ride height set at 13.75" / 13.25" f/r (distance from hub center to fender) Engine / power: APS short ram Crucial P&P&C headers (will be changing to GrimmSpeed as they are the new sponsor) Stock gutted uppipe (in process) APS turboback GFB underdrive pulleys AP w/custom tune (working on getting Doug from TopSpeed to make a trip to the midwest) Makes 195hp and 198ft-lbs at the wheels (~45 more than stock). Driveline: TiC rear diff bushings Kartboy outrigger bushings TiC tranny x-member bushings GroupN tranny mount Kartboy shifter and all bushings Brakes: Cobb / Stoptech 332x32 BBK BHP XPS pads up front Carbotech Panther + in back Stoptech lines front, goodridge lines rear Motul RBF600 fluid Wheels / tires: Enkei RPF-1 17x8 +45 Yokohama Advan Neova 235/40R17 shaved to 5/32" (may switch to Toyo R1R just to test them) Rota Torque 17x8 +48 Yokohama Advan Neova 235/40R17 full depth (daily driver / wet weather tires) Weight savings: Sparco Evo L driver's seat (w/ sliders and mounts) Braille B2015 lightweight battery (15lb all-season version) Added weight: Takata 4-pt harness STi corner splitters Gauges, sending units, and a dash pod Extra power outlet run inside the dash and over to driver's side for GPS unit Will likely be adding the weight of a Traqmate data acquisition system Car weighed in at 3260lbs w/ driver last summer when I had it aligned and balanced. That was with a rather full tank of gas and a driver than was 30lbs heavier. Setup was good enough for 1st and the Peru Nat'l Tour and 2nd at the Toledo Pro. Last edited by Scooby921; 01-25-2008 at 12:31 PM.

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STX Setup Question	AutoXRex	Motorsports	12	06-16-2003 09:48 PM

01-21-2008, 02:43 PM	#1
Butt Dyno Street's closed, pizza boy Member#: 17301 Join Date: Apr 2002 Chapter/Region: MAIC Location: NoVA Vehicle: 2018 Focus RS 2006 Evo #17 STU	STX WRX Setup / Discussion thread STU, BSP, ESP and most of DS have their own thread. It only seems fair I tried to get a bunch of the relevant threads together here for newbies and such: Rules: If it doesn't say you can, you can't The Rules Sticky: Auto-X Rules: Read This First http://forums.nasioc.com/forums/showthread.php?t=174189 STX General: How would you do STX? (general advice thread) http://forums.nasioc.com/forums/show...&highlight=stx Help me setup the STX Wagon! http://forums.nasioc.com/forums/show...=clarification Listing of ALL STX legal mods with subjective priorities http://forums.nasioc.com/forums/show....php?t=1181271 Tires: 235-40/17 vs 245-40/17 STX http://forums.nasioc.com/forums/show...&highlight=stx Bridgestone Potenza RE-01R vs Yoko Advan Neova AD07s for STX http://forums.nasioc.com/forums/show...&highlight=stx RE01R vs. Advan Neova http://forums.nasioc.com/forums/show....php?t=1283791 Power mods: STX, boost maps, dyno tuning, etc (STX-legal dyno plots as well as power discussion) http://forums.nasioc.com/forums/show...&highlight=stx STX Power http://forums.nasioc.com/forums/show...&highlight=stx How STX legal map makes power? http://forums.nasioc.com/forums/show...&highlight=stx The Great Exhaust Clarification Debacle of 2007: August clarification: ST* - the Throwdown - 2007 http://sccaforums.com/forums/thread/255144.aspx September Fastrack posted online - ST news http://sccaforums.com/forums/thread/259938.aspx NASIOC clarification thread: http://forums.nasioc.com/forums/show...=clarification Post-clarification exhaust setup database: http://forums.nasioc.com/forums/show....php?t=1364415 Quest for STX-legal WRX: http://forums.nasioc.com/forums/show...&highlight=stx ST* - emissions legal or not? http://sccaforums.com/forums/thread/278185.aspx Suspension setup: STX swaybar and spring rate data http://forums.nasioc.com/forums/show...&highlight=stx WRX in STX (flipping coilover springs question) http://forums.nasioc.com/forums/show...&highlight=stx Faster with a stiffer front swaybar? http://forums.nasioc.com/forums/show...&highlight=jic More camber, less stopping power? http://forums.nasioc.com/forums/show...ight=pyrometer Other: What essential go fast STX mod would you buy? http://forums.nasioc.com/forums/show...&highlight=stx Also I figure folks can post their setups here and ask general setup questions like in the STU thread. Hope it's helpful. I will post mine at some point john Last edited by Butt Dyno; 04-10-2008 at 04:26 PM.

01-21-2008, 02:55 PM	#2
PhilC Scooby Specialist Member#: 35190 Join Date: Apr 2003 Chapter/Region: MWSOC Location: Cleveland, OH Vehicle: 2003 WRX STX #77 www.soloracer.com	Our setup is pretty much still what is listed on the teamsoloracer.com site. http://www.teamsoloracer.com/drivers/pjcroy.php It hasn't been updated in a while but the basics are there. Car is still for sale if anyone is interested in an essentially fully prepped nationally competitve car rather than doing the development themselves. Buy it for the cost of the car and less than 1/4 of the parts cost.

01-21-2008, 03:22 PM	#3
Sideshowbob Scooby Guru Member#: 50304 Join Date: Dec 2003 Chapter/Region: NESIC Location: HTown Tehas Vehicle: 97 TJ Wheeler 12' TSX Wagon	STX setup- Buy a really fast 1991 Honda Hatch Si, install front LSD, and win. 1/4 of the cost, just don't go to pro's

01-21-2008, 03:40 PM	#5
STFU STi Scooby Specialist Member#: 39528 Join Date: Jul 2003 Chapter/Region: MWSOC Location: Fort Wayne, Indianer Vehicle: 2005 STi Black and TiC Cows	89's are lighter awesome thread, john

01-21-2008, 04:20 PM	#6
thrdeye Scooby Specialist Member#: 24569 Join Date: Sep 2002 Chapter/Region: South East Location: East Tennessee Vehicle: 2004 Mazda RX8 Titanium	My car's pretty much good to go felt great at the subaru challenge (#1 in pax), but I'm still working on getting it to comply to this emissions bull**. K&N Typhoon short ram Vibrant header and uppipe combo, coated inside/out and wrapped Prodrive downpipe Prodrive 3rd cat delete straight pipe BC Racing non-inverted coilovers 10K front/12K rear Whiteline 24 MM front sway Steering rack bushings Goodridge stainless brake lines 17x8 Rota Boost with 245/40/17 RE01-R's Hawker Odyssey Battery - PC 535 Alignment -3.0 camber front absolute 0 in the rear Toe = I don't know. Upcoming changes -Emissions bull** experimentation -Hawk HP+ pads -New rear rotors That's really about it.

01-21-2008, 11:53 PM	#8
BIGSKYWRX Scooby Guru Member#: 7958 Join Date: Jul 2001 Location: Plains of Eastern Montana Vehicle: 09 GH B+	yes- we definitely deserve our own thread- thanks for doing so! I've started on my "quest" for a STX legal exhaust- gutted my oe uppipe (the STi one I have now has no provision for the egt) today- not the most fun two hours I've had Heard from several folks that the Prodrive catted downpipe on it's own will prevent the P0420, so I bought a used one (it's off to SwainTech) will be teamed w/ a Prodrive de-catted center pipe (fingers crossed) I'm thinking about about a short turn down to bolt on for events- good idea???? stock air box w/ STi panel filter-> Samco MAF hose->Samco turbo inlet My STX map could probably be improved, sounds like TopSpeed is highly thought of Currently on SA Koni's w/ Tarmac springs (6/5k) and RCE front/GrP N rears- it's nice for a daily driver, but I hope to firm things up a bit probably 8/7k- looking at DA AST's, also looking at zzyzx's new EM's- I don't see myself in 10+k for some reason current alignment is -2.8/-1.5 (caster is ~ .5 more + than oe) toe ~ 2mm out f/r, will probably try and go a little higher in front -3.2 ish ride height is 355 front/345 rear (this is a wagon- so ~ 30mm lower than stock) 27mm WL front sway bar/22mm rear, Poltec sway links front/rear Grp N pitch/engine/tranny/rear diff mounts, transverse/lateral/trailing bushings Brakes are FHI 4/2 pots w/ Ferodo 2500's, if I can free up some $ am considering a lighter BBK up front Wheels are Enkei ES Tarmacs 17x8 and just found a set of Neovas in 235/40/17, for "summer" daily driving Enkei RC-T4's 17x8 wrapped w/ undetermined tire- possibly Advan Sports Would like to shed a few lbs w/ seats, just need to find that $ tree

01-22-2008, 09:13 AM	#10
Scooby921 Merci Buckets Moderator Member#: 88606 Join Date: Jun 2005 Chapter/Region: MWSOC Location: Michigan Vehicle: 2018 Grand Cherokee Velvet Red Pearl	For other information that people may find useful... I talked to both Kumho and Toyo on the phone yesterday. The Ecsta XS is still in testing. They set the benchmark bar with the Advan Neova and say the XS is doing very well. Unfortunately it isn't due out to market until late summer so it not an option this solo season. Toyo said they only have 7 sizes of the R1R in production right now. A 245/35R17 is NOT one of those sizes. They do not have any testing results that they plan to share. The simply said they are leaving testing to outside sources so the results are unbiased. All I could get from them was that they are very proud of this tire and happy with how it turned out. I will be sticking with a 235 for the year. I'm not sure whether or not I'll be going with Yokohama, Toyo, or Bridgestone though. Yokohama and Bridgestone have proven performance. Yokohama has not yet renewed their contingency program for this year so their tires are getting less affordable. Toyo matched Bridgestone's contingency so they are looking better. I might have to buy a set and head to a test and tune to compare them to my current Advans.

01-22-2008, 09:52 AM	#11
BIGSKYWRX Scooby Guru Member#: 7958 Join Date: Jul 2001 Location: Plains of Eastern Montana Vehicle: 09 GH B+	how are the Neovas at full tread for the wet? the contingency pdf has a check off for Yokohama, I've got an email into them- hopefully they are (will) be on board???

01-22-2008, 10:00 AM	#13
STFU STi Scooby Specialist Member#: 39528 Join Date: Jul 2003 Chapter/Region: MWSOC Location: Fort Wayne, Indianer Vehicle: 2005 STi Black and TiC Cows	yokohama contingency note: http://forums.nasioc.com/forums/show...3&postcount=10

01-22-2008, 11:06 AM	#14
Scooby South Subtly Outspoken Moderator Member#: 238 Join Date: Sep 1999 Chapter/Region: MWSOC Vehicle: OG05 STi 51E	made it a part of the AutoX Sticky..

01-22-2008, 02:52 PM	#15
BIGSKYWRX Scooby Guru Member#: 7958 Join Date: Jul 2001 Location: Plains of Eastern Montana Vehicle: 09 GH B+	^ monsoon never got a response back from Yokohama, will call this time

01-25-2008, 12:53 AM	#17
Butt Dyno Street's closed, pizza boy Member#: 17301 Join Date: Apr 2002 Chapter/Region: MAIC Location: NoVA Vehicle: 2018 Focus RS 2006 Evo #17 STU	My setup (as of the end of last year): Koni 1198's valved for Ground Control, in Ground Control housings 400 lb/in Eibach ERS (front) 450 lb/in Eibach ERS (rear) Ground Control top mount camber/caster plates (front) STi Grp N strut tops (rear) Whiteline 27mm front swaybar w/ Kartboy endlinks Cobb 23ish mm rear swaybar w/ Kartboy endlinks Cusco rear strut tower brace Alignment: -3.5 f, -1.2 rear Ride height: 14" front, 14" rear Engine/power: PDE solid uppipe TurboXS stealthback w/ Scoobysport muffler Borla header Samco inlet hose K&N Typhoon STX ProTune: 237 whp, 232 ft/lb Odyssey PC680 battery Drivetrain: STi short shifter STi Grp N engine mounts STi Grp N transmission mount Kartboy shifter bushing Whiteline steering rack bushings (meh) Redline Lightweight Shockproof fluid Wheels/tires 17x7.5 JDM Ver7 STi wheels w/ RE070's 17x8 Enkei ES-Tarmac w/ ... ? Brakes StopTech 328x28 BBK (front) StopTech H6 rotors (rear) Hawk HPS pads Super Blue Other: Lots of STi Ver7 rice (headlights, door cards, rear seats, cluster, grill, fog covers) Sparco Evo seats I had the raw times to snag the last trophy spot at the DC Pro, but hit the last cone on the damned course (after the finish line, doh). The car is definitely a lot more capable than I am. In July the car weighed 3025 lbs w/o driver. My goal for this year was to drop that at least 50 lbs, more if possible. Changes planned for 2008: -Switching from big-ass Wings West spoiler to wingless -New set of 17x8 RPF-1's w/ Direzzas (street/rain) -Some new tires for the ES-Tarmacs (Yokos? Toyos? Waiting as long as possible on this one) -TurboXS one-off two-cat turboback -Spring rate / swaybar / ride height / alignment changes TBD. With the 2007 setup and the Cobb rear bar at full stiff the car was plenty neutral but I was getting a lot of wheelspin at corner exit than I was with the bar at full soft. I am thinking about going to 500# front, 550# rear, and then swapping to the Cobb front swaybar (something like 23mm and ~8 lbs lighter) and running the rear bar on full soft. Any tweaking from there would be done with the alignment. I don't know if 100 lb/in is enough to make up for the decrease in swaybar size, and if it is enough, I don't know if it will actually fix the wheelspin problem. It seems like very smart people disagree on the issue of whether achieving roll stiffness with bars and achieving roll stiffness with springs work out to be the same in terms of wheel lift/wheelspin. Cheapest/simplest option is to leave it alone, of course, which isn't that bad. john

01-25-2008, 08:32 AM	#19
Butt Dyno Street's closed, pizza boy Member#: 17301 Join Date: Apr 2002 Chapter/Region: MAIC Location: NoVA Vehicle: 2018 Focus RS 2006 Evo #17 STU	At one point I had -3.5 f, -.8 rear, 27mm front bar and 17mm rear bar (before I bought the Cobb) and it was well balanced - better than it was when I ended the year and without the wheelspin issues. I was running more rake than when I ended the year though. I guess with the bar at full soft (effectively 21mm I think) I could run a bit more rake or a little less camber in the rear and hopefully get the same effect. One other thing is that I don't have independent height/preload adjustments so the only way I can run less camber in the rear is to raise the rear a little bit. But you're right, the smart thing is to try tweaking things before $$'ing john

01-25-2008, 09:28 AM	#21
Butt Dyno Street's closed, pizza boy Member#: 17301 Join Date: Apr 2002 Chapter/Region: MAIC Location: NoVA Vehicle: 2018 Focus RS 2006 Evo #17 STU	I have rear camber bolts (sorry, let them off the mod list)

01-25-2008, 10:51 AM	#22
thrdeye Scooby Specialist Member#: 24569 Join Date: Sep 2002 Chapter/Region: South East Location: East Tennessee Vehicle: 2004 Mazda RX8 Titanium	Hmm...well, I'm at 0 in the rear with my bolts....

01-25-2008, 11:00 AM	#23
Butt Dyno Street's closed, pizza boy Member#: 17301 Join Date: Apr 2002 Chapter/Region: MAIC Location: NoVA Vehicle: 2018 Focus RS 2006 Evo #17 STU	My guess is that I could easily get less if I had something with independent height and preload adjustments. I might have to go to a shorter spring of the same rate in order to get the results I'm after.

01-26-2008, 06:39 PM	#24
BIGSKYWRX Scooby Guru Member#: 7958 Join Date: Jul 2001 Location: Plains of Eastern Montana Vehicle: 09 GH B+	what's the general consensus (I'm sure there is no consensus ) on intakes for STX? power to be had? heat soak issues?