Welcome to the North American Subaru Impreza Owners Club Wednesday December 7, 2022
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-04-2003, 03:36 AM   #1
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default JDM STi Lowering Springs installed on USDM STi

I finally bit the bullet and bought the JDM STi Lowering Springs that Rallispec sells.

Install went smoothly. Unfortunately, I didn't take measurements before the install. I did take photos though.

The drop is subtle, but the springs haven't had too much of a chance to settle yet after only being on for 24 hours.

PHP Code:
Fender Height Measurements (with lowering springs):
   
Left Front:  25 7/8 inches
   Right Front
25 7/8 inches
   Left Rear
:   25 1/8 inches
   Right Rear
:  25 1/4 inches 
Stock Springs:



Lowering Springs:


Russ
* Registered users of the site do not see these ads.
rlavalle is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-04-2003, 03:42 AM   #2
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

As for driving impressions... It's not significantly harsher than stock. I haven't pushed it yet since she still needs an alignment.

Russ
rlavalle is offline   Reply With Quote
Old 10-04-2003, 10:21 AM   #3
SUPAREX
Scooby Specialist
 
Member#: 28278
Join Date: Oct 2002
Location: San Francisco
Vehicle:
02 WRX
Platinum

Default

Nice wheels. Prodrives?
SUPAREX is offline   Reply With Quote
Old 10-04-2003, 11:00 AM   #4
Midwestrider
Scooby Newbie
 
Member#: 42955
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Dirty Nati
Vehicle:
2004 Bone Stock..
Silver

Default

Rlavalle,
Those are the STi Pinks springs correct?
The drop looks good.
Midwestrider is offline   Reply With Quote
Old 10-04-2003, 01:17 PM   #5
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

The wheels are 17" SSR Competitions. Those, and the S-03's weigh 6 lbs less than the stock BBS/070's at each corner.

And yes, these are pink STi Lowering Springs.

Say... can someone measure their stock fender height so we can compare heights since I neglected to measure mine before the swap? Maybe make 2 measurements:
1. Ground to bottom of fender arch along wheel centerline. I was careful to kneel down and measure to exactly where the fender curls under and is horizontal (parallel to the ground).
2. From wheel center to bottom of fender arch (to remove any difference caused by wheel/tire differences).

Thanks,
Russ
rlavalle is offline   Reply With Quote
Old 10-04-2003, 02:02 PM   #6
subarud
Gone.. But not forgotten
 
Member#: 9863
Join Date: Sep 2001
Location: Mendacity, U.S.
Vehicle:
02 WRX Blue & Fast
91 S10 Red & Abused

Default

Wow, those anthracite comps look great on your black STi! They really show off those brembo's well. Did you decide not to put center caps on?

~Evan
subarud is offline   Reply With Quote
Old 10-04-2003, 02:33 PM   #7
BIGSKYWRX
Scooby Guru
 
Member#: 7958
Join Date: Jul 2001
Location: Plains of Eastern Montana
Vehicle:
09 GH B+

Default

Has anyone seen the ride height specs from the factory manual? They are expressed in mm, measured from wheel center to fender arch- the WRX sedan measures 396mm front/376 rear.

I'm curious as these "advertise" a 20mm drop and am curious if this is a 20mm drop over the GDB or the GDA? What I'm getting at if the GDB is 10mm lower than the GDA will a GDA see a 30mm drop?

Also its interesting that the few people that have put these on don't seem to notice a large difference in spring rates. That seems a little odd as the sport 257/217 rates. These are a 40% increase in front and a 25 % increase rear over the JDM v7 STi (188/173) and a 18% front and a 13% increase rear over the STi RA. It makes me wonder what rates the USDM v8 STi is running for springs- hard to believe that info isn't out. It was out instaneously 2 years ago w/ the GDA, maybe its out and I just haven't seen it.

Big Sky (thinking about v8 STi lowering springs)
BIGSKYWRX is offline   Reply With Quote
Old 10-04-2003, 04:38 PM   #8
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

I initially had them on, but when they started popping off after getting heated up on the track, I left them off for good.

Quote:
Originally posted by subarud
Wow, those anthracite comps look great on your black STi! They really show off those brembo's well. Did you decide not to put center caps on?

~Evan
rlavalle is offline   Reply With Quote
Old 10-04-2003, 04:40 PM   #9
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

After more driving, I am thinking the car is a bit stiffer. Bounces a bit more over bumps: a firm bounce rather than a softer one. On the other hand, my girlfriend thinks it's harsher. Not bad at all in my opinion.

Russ


Quote:
Originally posted by BIGSKYWRX
Has anyone seen the ride height specs from the factory manual? They are expressed in mm, measured from wheel center to fender arch- the WRX sedan measures 396mm front/376 rear.

I'm curious as these "advertise" a 20mm drop and am curious if this is a 20mm drop over the GDB or the GDA? What I'm getting at if the GDB is 10mm lower than the GDA will a GDA see a 30mm drop?

Also its interesting that the few people that have put these on don't seem to notice a large difference in spring rates. That seems a little odd as the sport 257/217 rates. These are a 40% increase in front and a 25 % increase rear over the JDM v7 STi (188/173) and a 18% front and a 13% increase rear over the STi RA. It makes me wonder what rates the USDM v8 STi is running for springs- hard to believe that info isn't out. It was out instaneously 2 years ago w/ the GDA, maybe its out and I just haven't seen it.

Big Sky (thinking about v8 STi lowering springs)
rlavalle is offline   Reply With Quote
Old 10-04-2003, 07:37 PM   #10
oldmansan
Scooby Specialist
 
Member#: 17877
Join Date: Apr 2002
Chapter/Region: SCIC
Location: California
Vehicle:
2007 Exige S
Storm Titanium

Default Just a sidenote,

I have SSR Cs as well (16 X 7.5) and went with Michelin Pilot Sports because they're much lighter than the S03s and have a stiffer sidewall. Luke (Tire Rack) recommended them. My setup is actually lighter than the stock WRX wheels and tires.

San
oldmansan is offline   Reply With Quote
Old 10-05-2003, 03:39 AM   #11
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

I may have to try the Pilot Sports once my S-03's die... which will be pretty soon now.

Russ
rlavalle is offline   Reply With Quote
Old 10-05-2003, 04:14 PM   #12
jagcars26
Scooby Specialist
 
Member#: 2394
Join Date: Sep 2000
Chapter/Region: MAIC
Location: Bel Air Md.
Vehicle:
2005 Legacy GT wagon
2009 Forester X

Default

Looks good Russ,glad you like them,,,come spring, Im going to get those springs!I was going to get them sooner but my puter crashed bigtime had to buy a new one No money in petty cash fund.

Rudy

OK,just measured from ground through center of wheel to bottom of fender lip , stock wheels/tires 04 STi

LF,,26 5/8 inches
LR,,25 7/8 inches

you guys do the math



Last edited by jagcars26; 10-05-2003 at 04:25 PM.
jagcars26 is offline   Reply With Quote
Old 10-05-2003, 06:30 PM   #13
BIGSKYWRX
Scooby Guru
 
Member#: 7958
Join Date: Jul 2001
Location: Plains of Eastern Montana
Vehicle:
09 GH B+

Default

Quote:
Originally posted by jagcars26
Looks good Russ,glad you like them,,,come spring, Im going to get those springs!I was going to get them sooner but my puter crashed bigtime had to buy a new one No money in petty cash fund.

Rudy

OK,just measured from ground through center of wheel to bottom of fender lip , stock wheels/tires 04 STi

LF,,26 5/8 inches
LR,,25 7/8 inches

you guys do the math


19mm drop fornt and rear- that's pretty damn close to advertised!

Mine is 27 front 26 1/8 rear- GDA w/ RA springs, I'd be getting close to a full inch of drop. These springs may well be on my Christmas list.

Big Sky
BIGSKYWRX is offline   Reply With Quote
Old 10-05-2003, 06:40 PM   #14
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

Thanks for the info & math guys.

Bigsky, you ought to look at ProDrive springs for the WRX. These STi springs only fit 2004 vehicles. I had Prodrive on my WRX and they were awesome. 1.5" lower and nicely firmer.

Russ
rlavalle is offline   Reply With Quote
Old 10-05-2003, 07:12 PM   #15
BIGSKYWRX
Scooby Guru
 
Member#: 7958
Join Date: Jul 2001
Location: Plains of Eastern Montana
Vehicle:
09 GH B+

Default

Quote:
Originally posted by rlavalle
Thanks for the info & math guys.

Bigsky, you ought to look at ProDrive springs for the WRX. These STi springs only fit 2004 vehicles. I had Prodrive on my WRX and they were awesome. 1.5" lower and nicely firmer.

Russ
I'm already running RA springs 217/192, Prodrives while nice would be going the wrong direction for me- want stiffer, not softer. Easy to run revision c stuff- struts are identical as are front springs/tops, the only difference is the rear tops and springs (tapered to accomodate the new designed rear tops). Thus you only need to swao in rev c rear tops to run erv c springs.

It is interesting to note - see thread I started that Prodrive is eveidnetly releasing a lowering spring for the STi. If that happens I'd look at that one as well- 20% stiffer than oe (STi) and 20mm lower.

Big Sky
BIGSKYWRX is offline   Reply With Quote
Old 10-05-2003, 08:40 PM   #16
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

Ahhh, you know what you're doing.

Rallispec gave me the following numbers for the STi Lowerin Springs:
257lb/in front, 217 lb/in rear.

Russ
rlavalle is offline   Reply With Quote
Old 10-13-2003, 01:07 PM   #17
TurboRex
Scooby Specialist
 
Member#: 8635
Join Date: Jul 2001
Location: Texas
Vehicle:
04 STI, 07 FXT

Default

Does anyone make a spring for the sti that would lower the car 20mm but not be stiffer?

Also, is the sti lowering springs at japanparts.com the ones that will fit our sti?

Thanks,

Greg
TurboRex is offline   Reply With Quote
Old 10-13-2003, 03:29 PM   #18
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

I don't know about the springs at japanparts.com, but the ones from Rallispec.com are the right ones.

Russ
rlavalle is offline   Reply With Quote
Old 10-14-2003, 12:18 AM   #19
BIGSKYWRX
Scooby Guru
 
Member#: 7958
Join Date: Jul 2001
Location: Plains of Eastern Montana
Vehicle:
09 GH B+

Default

There are only two sets of STi lowering springs for the GD. One set for reva/b- lowers 20mm, rates 200/185 (a little firmer than 'regular" STi rates of 188/173) and the new rev c lowering springs which also lower 20mm, but have higher rates of 252/217. Either of these sets could be used on any of the GD's reva,b or c- it's just a matter of using the correct rear tops. A 04 USDM STi could use the "older" lowering springs simply by replacing the rear tops w/ the older (rev a/b) ones. 02/03 WRX's can use the "new" lowering springs by simply swapping to the new style rear tops (and replacing the oe struts- these are pretty stiff springs).

Big Sky
BIGSKYWRX is offline   Reply With Quote
Old 10-14-2003, 10:48 AM   #20
TurboRex
Scooby Specialist
 
Member#: 8635
Join Date: Jul 2001
Location: Texas
Vehicle:
04 STI, 07 FXT

Default

Big Sky, if I understand you correctly, all front springs for the gda will interchange as far as fitment goes. You just need the ride height and spring rate that you want. The back involves the addition of the correct tops.

I wonder who sells the softer sti springs. japanparts.com does not state which spring rates theirs are at. Russ stated rallispec sells the stiffer ones.

I want something as close to the stock ride or a little softer but 20mm lower.

Greg
TurboRex is offline   Reply With Quote
Old 10-14-2003, 10:51 AM   #21
TurboRex
Scooby Specialist
 
Member#: 8635
Join Date: Jul 2001
Location: Texas
Vehicle:
04 STI, 07 FXT

Default

I forgot to add that the spring rates at japanparts are 45n/mm for the front and 38n/mm on the back. Anyone know the conversion of this?

Thanks,

Greg
TurboRex is offline   Reply With Quote
Old 10-14-2003, 10:59 AM   #22
TurboRex
Scooby Specialist
 
Member#: 8635
Join Date: Jul 2001
Location: Texas
Vehicle:
04 STI, 07 FXT

Default

Sorry for all the post but I figured it out.

The 45n/mm front and 38n/mm rear is the stiffer sti springs. The 35n/mm front and 32 rear are the softer sti springs. They both state they will drop 20mm. I wonder if they will both provide the same drop on the us sti. We know the stiffer springs will drop 20mm but not sure if the softer springs will. If anyone knows, I would appreciate it.

Thanks,

Greg
TurboRex is offline   Reply With Quote
Old 10-14-2003, 11:04 AM   #23
BIGSKYWRX
Scooby Guru
 
Member#: 7958
Join Date: Jul 2001
Location: Plains of Eastern Montana
Vehicle:
09 GH B+

Default

Quote:
Originally posted by TurboRex
Big Sky, if I understand you correctly, all front springs for the gda will interchange as far as fitment goes. You just need the ride height and spring rate that you want. The back involves the addition of the correct tops.

I wonder who sells the softer sti springs. japanparts.com does not state which spring rates theirs are at. Russ stated rallispec sells the stiffer ones.

I want something as close to the stock ride or a little softer but 20mm lower.

Greg
Close to what stock ride- the WRX? Those spring rates are soft- 168/119- you won't find anything lower w/ those low of rates. If you mean the STi oe ride (188/173) then the "old" pink springs would be the closest @ 200/185- these are sold by a lot of different folks- Gruppe S usually stocks these.

45n/mm = 252 ftlbs/inch
38= 217 these are the revision c springs

Yes you understand correctly- complete interchangability as long as the correct rear tops are used.

Big Sky
BIGSKYWRX is offline   Reply With Quote
Old 10-14-2003, 11:10 AM   #24
TurboRex
Scooby Specialist
 
Member#: 8635
Join Date: Jul 2001
Location: Texas
Vehicle:
04 STI, 07 FXT

Default

Thanks a bunch. I meant the stock sti ride. I want to take weight off the front (bumper beams, battery) and realize the front is going to be nose high if I don't get something that will lower the front back to its original or close to original height. I also want to keep the same spring rate as stock.

Greg
TurboRex is offline   Reply With Quote
Old 10-14-2003, 12:08 PM   #25
rlavalle
Scooby Specialist
 
Member#: 18384
Join Date: May 2002
Location: Seattle 'burb (Kirkland)
Vehicle:
2004 STi: 580 AWHP
Java Black Pearl

Default

I was thinking the same thing. The STi is still a bit nose high as-is. Moving the battery back is not going to help.

I was considering cutting a bit out of each front spring to lower them a bit more... though this would increase spring rate a little.

Russ
rlavalle is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
STI pink springs installed on an 2008 Impreza 2.5i wagon. SubieSubie Brakes, Steering & Suspension 10 07-28-2008 06:36 PM
Spring install on 04 STI - food and drinks with nominal pay included. Anyone? igbad Southern California Impreza Club Forum -- SCIC 0 09-03-2006 05:07 PM
JDM v8 STI pink springs work on 05 sti? Thran Brakes, Steering & Suspension 1 01-21-2006 06:04 AM
RA Heads to be install on USDM STI STI2005PR Private 'Wanted' Classifieds 0 05-20-2005 03:09 PM
JDM STi seat rails fit on USDM STi seats? Cajual Interior & Exterior Modification 5 04-22-2004 10:19 AM

All times are GMT -4. The time now is 04:31 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2022 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.