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Old 04-07-2008, 10:36 PM   #1
QuikWgn
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Join Date: Feb 2006
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2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default Compiling Tokico D-Specs settings

I know this is something totally subjective to driving style etc, but a lot of members have/are getting this setup. We are constantly answering all kinds of questions about them so I thought this is an area that has very little coverage. This is what I am proposing.

MY, bodystyle, mileage on chassis
Number of turns f/r from FULL STIFF(If changing settings for different driving situations please note)
Springs including MY if hats have been swapped for newer MY and rates if known
Ride height from center of hub to metal edge of fender(if known)
Hats or camber plates?
SHORT list of supporting suspension mods(no need to list every bushing replaced)
Tire/Wheel combo
Alignment specs if known
Comments


2003 WRX wagon 61k
4 turns front/3.5 turns rear for DD
Tokico springs from DSK-513 kit 205f/170r
14 1/8" front - 13 5/8" rear
Stock 03 WRX hats
All stock for now except for dbl camber bolts in front/single camber bolt rear
18x8x45mm w/225/40/18 Bridgestone S-03 Pole Positions
-2.2 deg camber f/0 cross camber/1/32" toe in f/3.9 deg caster/0 cross caster
-1.7 deg camber r/0 cross camber/0 toe

The rear drop on the wagon w/ the Tokico springs is a little more than I was figuring on. Even with the rear set pretty firm if I hit a good sized undulating bump in the road @ speed I will get a little rub in the rear even with a major roll on the rear fenders. Part of this is due to the offset of the wheels as well as the wide section width of the tires. Wife does not complain about the ride on these settings except for the occasional rubbing. I have a 3/8" set of Paranoid Fabrication spacers on the way to correct the rear ride height. I will soon be adding a 20mm sedan rear sway poly bushings and Kartboy links to try and decrease body roll.

Handling is vastly improved over stock. Suspension feels much tighter, and I have none of the reported clunking some had reported with D-Specs. Absorbs bumps well without being bouncy, and on these settings is not breaking teeth or hurting kidneys. I'm looking forward to my alignment on Wednesday so I can see what it feels like with the camber maxed in front and zero toe. I would recommend this upgrade to anyone wanting better handling, a more controlled ride, and the ability to adjust settings as driver skills improve.

Last edited by QuikWgn; 04-09-2008 at 11:56 PM.
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Old 04-08-2008, 02:01 AM   #2
williaty
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USDM 2005 Impreza 2.5RS Wagon, 62,000 miles

Damper Settings:
-Front: -4.875 FFS
-Rear: -5.500 FFS
--I just turned these up 1/8th of a turn today. Still not sure the rear is right.

USDM 2005 STi take off springs, 224/193lbf-in

Whiteline Max-C Motorsport camber plates front, STi Group N top hats + 1/4" Paranoid Fabrications Saggy Butt Shims rear

Ride Height:
-FR: 15-3/8"
-FL: 15-1/4"
-RR: 14-3/4"
-RL: 14-11/16"
--EDIT: Factory service manual lists ride heights in two different places. In both cases, the front ride height is listed as 397mm. However, the height in inches is different by a full 1/2". Doing the conversion myself, the actual value in inches should be 15.63" in the front and 15" in the rear. So I'm basically 1/4" lower than stock but level.

Mods quotes from sig on another forum:
Quote:
2005 Impreza 2.5RS Wagon in Regal Blue Pearl
Basic Suspension: USDM STi Springs, Tokico D-Specs, PolTec Heavy-Duty Endlinks, Whiteline 22mm Adj RSB, Whiteline QR Rear STB, GT-Spec ALK, Whiteline Max-C Motorsport camber plates, 1/4" HDPE Paranoid Fabrications Saggy Butt Shims
Bushings: Full STi Group N Lateral Link, Trailing Link, and Rear Strut Mount Set, Kartboy Tranny Crossmember, TiC Comfort Rear Diff, Whiteline Steering Rack
Competition: Primitive Racing 3/16ths Front Skidplate and Rear Diff Protector, Alfa Club Rally Odometer/Chronometer
Powertrain: Stromung Stainless Steel 2.25" Midpipe, DIY Ghetto-rific Catch Can, Group A Performance Lightweight Crank Pulley, Hybrid Silentake, Group A Performance Throttle Body Spacer, RomRaided
Electronics: Hawker Odyssey PC-680MJT Battery, Hella Rallye 1000 FF Driving Lights, Hella Micro DE Fog Lights, Rear Deck Light Addition, Map Light Addition, Hella Supertones, Innovate Motorsports LC-1 WBO2, OMGHAX! AFR Gauge
Rolly Bits: Summer-16" OEM wheels in Falken FK452s | Winter-16" OEM Wheels in Hankook Icebear W300s
Body: Front Grille Center Pillar Delete, DIY Big Assed d@mn Serious Rally Style Mudflaps, Obsessive Amounts of RAAMmat and Ensolite, Polyurethane front lip
ICE: Pioneer DEH-3900MP, Pioneer CD-IB100II iPod Controller, Pioneer TS-D161R 6-1/2" Kevlar 2-Ways
Interior: DIY Hypoallergenic Cabin Air Filter, GC-Lock, S204ed Center Console
Aligned -1.0 Camber front (maxed out), 1/16" toe in front. 0 toe rear, -0.7 camber rear.

Last edited by williaty; 07-06-2008 at 01:40 AM.
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Old 04-08-2008, 12:14 PM   #3
bzbuzz
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WRB

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USDM 2006 WRX 35k mules
3 turns in front and rear for DD
RCE V2 yellow spring
Grp N tophats in front and rear
Whiteline 27mm f and 24mm r sway
Whiteline comfort ALK (love this one!!!)
Falken 452s 245/40/17 tires
-1.5 camber in front and -1.0 in rear 0 toes

Last edited by bzbuzz; 05-31-2008 at 05:53 PM.
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Old 04-08-2008, 12:34 PM   #4
Jard
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USDM '02 WRX Wagon, 93K miles,
5 turns from full stiff front and rear,
Stock '04 WRX Wagon springs,
TiC rear strut top spacer,
Grp N tophats in front and rear,
Whiteline 22mm adj. sway in f, full stiff,
Whiteline 22mm adj. sway in r, full soft,
98 RS wheels with 205/55-16 Nokian WRs,
Team Dynamics Pro Rally 1 wheels 15x6 +49 offset with 160/65-16 Michelin rally tyres,
-1.5 camber f,
-1.25 camber r,
1/16 total toe out f
0 toe r
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Old 04-08-2008, 03:54 PM   #5
williaty
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Regal Blue Pearl

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Updated my original post with exact setting and ride height information.
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Old 04-08-2008, 04:04 PM   #6
williaty
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OK, edited my OP again to note and correct an error in the Subaru Factory Service Manual.
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Old 04-08-2008, 06:41 PM   #7
Blown95ImpalaSS
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04 sti
3 turns from full stiff front and rear
04 spec gf210s
group n tops
scooby921 spacer
cusco 22mm rear bar
-1.2 front/-1.5 rear 0 toe
17x8 slips w/255/40/17 falken azenis st-115

good post. hoping to hear from some more from those running gf210s
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Old 04-08-2008, 09:32 PM   #8
Brighton
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02 WRX
4 TFFS front/rear for daily driving, still tweaking
JDM STI V8 Black Springs
STI Tops
scooby921 spacer
Otherwise stock
-.5 Camber front (Its all I could get)
0 toe front/rear
LGT 16" wheels for winter

I'm really enjoying them. I had them on 3 turns front/rear for a while and enjoyed them except my daily commute is over potholes that would make the moon cringe so I turned them back a bit. Haven't had a chance to try them in any competitive driving yet.
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Old 04-09-2008, 11:57 PM   #9
QuikWgn
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05 OBM LEGACY SDN

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Updated OP for new alignment/ride height specs
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Old 04-29-2008, 09:24 AM   #10
mla163
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Just put these on sunday, will update when I figure it out. 1TFFS is little jiggly.
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Old 04-29-2008, 10:33 AM   #11
Jard
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Quote:
Originally Posted by mla163 View Post
Just put these on sunday, will update when I figure it out. 1TFFS is little jiggly.
What springs?
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Old 04-29-2008, 11:25 AM   #12
mla163
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Quote:
Originally Posted by Jard View Post
What springs?
STI takeoffs
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Old 04-29-2008, 12:56 PM   #13
williaty
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You're bouncing on the tires, not the suspension. 1TFFS is WAY WAY WAY WAY WAY too stiff for sti takeoffs.
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Old 04-29-2008, 01:19 PM   #14
mla163
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Quote:
Originally Posted by williaty View Post
You're bouncing on the tires, not the suspension. 1TFFS is WAY WAY WAY WAY WAY too stiff for sti takeoffs.
I know, I wanted to see how stiff it could get. I'm gonna try 4 TFFS on the drive home and work from there.
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Old 04-29-2008, 01:27 PM   #15
williaty
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Since they're new, they're still slightly stiffer than they'll end up being. I would suggest turning them down to something like 6TFFS in the front and 6.5TFFS in the rear. This will be slightly soft, but you can then turn them up in 1/8th of a turn (45 degree) increments. The moment the chassis stops wallowing around, they're stiff enough. You don't want to turn them up until the car feels "fast" as this leads to the tires pattering over uneven pavement and costing you grip.

Wherever you do set them, you can expect to turn them up half a turn or so over the next month or two as they ease up a little.
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Old 04-29-2008, 02:01 PM   #16
mla163
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good advice, thanks
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Old 04-29-2008, 09:20 PM   #17
QuikWgn
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Per the instructions Tokico recommends 5 tffs for the first 500 or so miles to allow proper break in. Also in regards to the car "feeling fast" I agree. I actually ran a 3.5 tffs front/3 tffs rear for a while and it felt awesome on smooth pavement but skipped once I got into expansion joints etc and I backed both ends off a 1/2 turn.

The alignment made a WORLD of difference as did the 3/8" PF spacers I put on. Right now I am extremely happy after putting on Kartboy rear endlinks and a 20mm sedan rear bar. The 3mm increase in the rear bar equated to a 100% increase in stiffness in the rear and the car is way more controlled until I decide to let it rotate.

I've decided to stop the suspension mods for a while, but next will be front endlinks, 22mm sb's, group N hats and mounts, TiC sexy rearend kit, and an ALK then I think it'll be done supension wise. I just ned to relearn the limits on the current setup before I upgrade again.
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Old 04-30-2008, 09:04 AM   #18
mla163
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Quote:
3/8" PF spacers
???

Oh, saggy butt shims. Had to search.

Per Williaty's advice, I tried 6TFFS front and 6.5 rear. It actually felt alright. I turned it up a 1/2 turn this AM and it seems like it is getting farther away from good. I'll keep playing. AutoX this weekend.
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Old 04-30-2008, 02:22 PM   #19
williaty
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1/2 turn is a BIG BIG adjustment. Seriously, work in 1/8th turn increments.
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Old 04-30-2008, 02:37 PM   #20
mla163
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Quote:
Originally Posted by williaty View Post
1/2 turn is a BIG BIG adjustment. Seriously, work in 1/8th turn increments.
For real, these are way more sensitive than I thought.
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Old 04-30-2008, 08:57 PM   #21
QuikWgn
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Yeah i agree...i played with a 1/4 turn a day(my commute is a 50 mile roundtrip over surface streets and 2 major freeways) so I have a good combination of road surfaces that I know extremely well to try on. I even went as far as to hit a couple of big bumps on both on and off camber turns on consecutive days so I could compare. The new rear endlinks and SB have changed the rear quite a bit since both sides are more securely tied together now, so rear adjustment will continue tomorrow(my Monday).
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Old 05-12-2008, 01:32 PM   #22
hcsi99
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2004 WRX Sedan
5 Turns ffs front and rear
Swift R springs front 280lbs
Swift R springs rear 252lbs
White Line camber plates front
Camber bolts rear
-1.8 camber 0 toe front
1.25 camber 0 toe rear
cobb front and rear sway bars.

Has anybody had a chance to do some autocrossing with their D-specs yet? Just wanted to know what kind of settings people were running. I haven't had mine on the car a week yet but I like what I feel so far.
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Old 05-12-2008, 08:31 PM   #23
mla163
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Two autocrosses and I left the settings the same as street. I think I am at 5.75F 6.25R on STI takeoffs, but I am still breaking them in. I talked to a guy in D stock that said he turned his up to 1, but I don't think that's helping you much.
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Old 05-12-2008, 09:51 PM   #24
williaty
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Actually, "turning up" the struts for competition is a retarded idea. There's one ideal setting for a given strut and spring combination. This is the minimum damping that fully controls body movement. Anything more than that is useless and may cost you grip. People who turn the struts up for competition are either just fooling themselves or trying to patch over another problem with their suspension that the rules prevent them from fixing.
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Old 05-20-2008, 06:26 PM   #25
flwrx
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2003 wrx 86k
4 turns front, 3 rear
prodrive springs (forget which ones)
hotchkis sway bars and endlinks, rear set at stiffest
sti bbs w/ 235/45/17 falken 452
-1.8 front
-1.0 rear
0 toe
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