Notices
ScoobyNet General General Subaru Discussion

Lowering Springs on 05 STi

Thread Tools
 
Search this Thread
 
Old 29 March 2016, 11:29 PM
  #1  
SubieJack
Scooby Regular
Thread Starter
 
SubieJack's Avatar
 
Join Date: Mar 2016
Location: Hampshire
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default Lowering Springs on 05 STi

I have 2005 Widetrack STi with RB320 rear struts and standard STi front struts.

If I were to buy the Tein springs (below) which claim it lowers the car 35mm front and 25mm rear, how much would this lower the STi? I think there's a 10-20mm difference between the WRX and the STi, but just wondering if anyone's put lowering springs on theirs.

http://www.scoobyparts.com/suspensio...-new-age-03-07
Old 30 March 2016, 09:15 AM
  #2  
ZANY
Scooby Regular
 
ZANY's Avatar
 
Join Date: Oct 2014
Location: P1234x
Posts: 6,082
Received 131 Likes on 101 Posts
Default

Hi bud do you not allready have the black prodrive (eibach) springs from a rb320 allready or are you running Oem springs the teins will drop your car on its **** to be honest I've seen one with the tein setup pretty low but then again I won't know till Saturday how high or low the prodrive rb320 setup is but it'll be comfy
Old 30 March 2016, 09:31 AM
  #3  
Gambit
Scooby Regular
iTrader: (6)
 
Gambit's Avatar
 
Join Date: May 2003
Location: Belfast
Posts: 3,284
Received 231 Likes on 172 Posts
Default

Buy the H&R's - far better spring, both height & ride for newage IMO. i had Eibach in it and took them out after 2 weeks.

I ran them with RB320 front struts & STI rears

http://i5.photobucket.com/albums/y18...ps39f3f869.jpg

http://i5.photobucket.com/albums/y18...ps786f9e48.jpg

http://i5.photobucket.com/albums/y18...ps9c9de5e9.jpg
Old 30 March 2016, 10:51 AM
  #4  
2pot
Scooby Regular
Support Scoobynet!
iTrader: (3)
 
2pot's Avatar
 
Join Date: Feb 2010
Location: Birmingham
Posts: 1,838
Received 90 Likes on 78 Posts
Default

This question keeps coming up.
So, I've recently ordered a prototype set, of sti lowering springs - 3 months for delivery.
Old 30 March 2016, 11:04 AM
  #5  
2pot
Scooby Regular
Support Scoobynet!
iTrader: (3)
 
2pot's Avatar
 
Join Date: Feb 2010
Location: Birmingham
Posts: 1,838
Received 90 Likes on 78 Posts
Default

Originally Posted by ZANY
Hi bud do you not allready have the black prodrive (eibach) springs from a rb320 allready or are you running Oem springs the teins will drop your car on its **** to be honest I've seen one with the tein setup pretty low but then again I won't know till Saturday how high or low the prodrive rb320 setup is but it'll be comfy


Bistein struts + rb320 springs
355mm front 365mm rear
A, relatively, higher rear ride height, moves the roll centre rearward, increasing rear roll resistance.
That, in turn, makes the front end roll more - helping turn-in response and reducing understeer, without the use of stiffer bars.
You want the smallest bars possible, on a road car, to avoid 'roll-rock'.
Roll-rock:
If the spring rate is relatively low and the sta bar is too stiff, a suspension movement, initially, occurring on only one side of the vehicle, will be transmitted to the other side, inducing an unsettling 'roll-rock' motion.

The inverted kyb struts have 60mm, very stiff front bump stops, as a form of pitch control. But this can give a bobbing ride sensation and understeer, on anything but flat, smooth roads. Even more problematic, if you've lowered the front, and not addressed the front stops.
The handling, on kyb inverted struts, can be made more neutral, again, without increasing the rear bar diameter, with shorter, progressive front stops and stiffer rear stops.

Last edited by 2pot; 30 March 2016 at 11:12 AM.
Old 30 March 2016, 01:54 PM
  #6  
SubieJack
Scooby Regular
Thread Starter
 
SubieJack's Avatar
 
Join Date: Mar 2016
Location: Hampshire
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Gambit
Buy the H&R's - far better spring, both height & ride for newage IMO. i had Eibach in it and took them out after 2 weeks.

I ran them with RB320 front struts & STI rears

http://i5.photobucket.com/albums/y18...ps39f3f869.jpg

http://i5.photobucket.com/albums/y18...ps786f9e48.jpg

http://i5.photobucket.com/albums/y18...ps9c9de5e9.jpg
That doesn't look any lower than stock as I thought it would! I obviously don't want it slammed, but any car looks better being a bit lower.
Old 30 March 2016, 01:55 PM
  #7  
SubieJack
Scooby Regular
Thread Starter
 
SubieJack's Avatar
 
Join Date: Mar 2016
Location: Hampshire
Posts: 280
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 2pot


Bistein struts + rb320 springs
355mm front 365mm rear
A, relatively, higher rear ride height, moves the roll centre rearward, increasing rear roll resistance.
That, in turn, makes the front end roll more - helping turn-in response and reducing understeer, without the use of stiffer bars.
You want the smallest bars possible, on a road car, to avoid 'roll-rock'.
Roll-rock:
If the spring rate is relatively low and the sta bar is too stiff, a suspension movement, initially, occurring on only one side of the vehicle, will be transmitted to the other side, inducing an unsettling 'roll-rock' motion.

The inverted kyb struts have 60mm, very stiff front bump stops, as a form of pitch control. But this can give a bobbing ride sensation and understeer, on anything but flat, smooth roads. Even more problematic, if you've lowered the front, and not addressed the front stops.
The handling, on kyb inverted struts, can be made more neutral, again, without increasing the rear bar diameter, with shorter, progressive front stops and stiffer rear stops.
That looks awesome. What size are the springs? Or how much do they lower it?
Old 30 March 2016, 02:01 PM
  #8  
Gambit
Scooby Regular
iTrader: (6)
 
Gambit's Avatar
 
Join Date: May 2003
Location: Belfast
Posts: 3,284
Received 231 Likes on 172 Posts
Default

Originally Posted by SubieJack
That doesn't look any lower than stock as I thought it would! I obviously don't want it slammed, but any car looks better being a bit lower.
this is stock STI springs height lol

http://i5.photobucket.com/albums/y18...pse4228f5c.jpg
http://i5.photobucket.com/albums/y18...ps8e635ad9.jpg


RB320 Springs are 30mm front, 10mm rear drop

Last edited by Gambit; 30 March 2016 at 02:02 PM.
Old 30 March 2016, 05:27 PM
  #9  
sy.
Scooby Regular
iTrader: (8)
 
sy.'s Avatar
 
Join Date: Mar 2008
Location: west mids
Posts: 984
Likes: 0
Received 0 Likes on 0 Posts
Default

I now run the kyb struts with tein s tech springs on my jdm wide track got roughly 20mm all round drop from the sti springs no issues at all full geo setup is a must though once fitted

Last edited by sy.; 30 March 2016 at 05:29 PM.
Old 30 March 2016, 10:18 PM
  #10  
plenty
Scooby Regular
iTrader: (13)
 
plenty's Avatar
 
Join Date: Nov 2012
Location: UK
Posts: 771
Received 44 Likes on 30 Posts
Default

Originally Posted by SubieJack
That doesn't look any lower than stock as I thought it would! I obviously don't want it slammed, but any car looks better being a bit lower.
Personally I think Imprezas look best at OEM ride height.
Old 31 March 2016, 09:31 AM
  #11  
InTurbo
Scooby Regular
iTrader: (3)
 
InTurbo's Avatar
 
Join Date: Jan 2013
Location: Oxford
Posts: 739
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by SubieJack
That looks awesome. What size are the springs? Or how much do they lower it?
As it was my car used in the above photo, Here is a comparison of my car when I first brought it on oem suspension.
Name:  3549D52D-8615-4D8F-A208-B3E3DB026207_zpsltthq1fz.png
Views: 0
Size:  527.1 KB

And after with a 30f 10r drop.
Name:  1AB4604D-31E0-4C34-9CEB-DBAE13889DA9_zpso1u07fw1.png
Views: 0
Size:  980.3 KB

As its a nice day I'll take another today think it may of settled a bit since then.
Old 31 March 2016, 01:22 PM
  #12  
2pot
Scooby Regular
Support Scoobynet!
iTrader: (3)
 
2pot's Avatar
 
Join Date: Feb 2010
Location: Birmingham
Posts: 1,838
Received 90 Likes on 78 Posts
Default

Originally Posted by plenty
Personally I think Imprezas look best at OEM ride height.
Talking blob/hawk STI, which one do you like, ride heights-wise?
Subaru STI
Prodrive STI
Prodrive RB320 - rear, base spring diameter smaller, only fits Bilstein struts.

Available, replacement STI struts:
SALOON kyb ultra sr STI rate struts - fronts, inverted or twin-tube, won't fit widetracks:
Inverted - 321002, 321003, 321004, 321005
Twin-tube - 324033, 324032, 324031, 324030

WAGON kyb ultra sr STI rate struts.
Twin-tube - 324034, 324035, 324036, 324037
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Blobeye350
Wheels, Tyres & Brakes
13
05 August 2016 03:57 PM
Razorwrx1
Other Marques
14
08 March 2016 02:46 PM
maddhatteroo7
Subaru Parts
17
06 March 2016 09:36 PM
Amaya
Wanted
2
01 March 2016 09:08 PM
DD24
General Technical
5
28 February 2016 02:26 PM



Quick Reply: Lowering Springs on 05 STi



All times are GMT +1. The time now is 03:21 AM.