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 Post subject: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Thu Aug 07, 2008 5:31 pm 
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I Say: Nowhere near as much as I used to!
Vehicle: Gone but not forgotten-MY08 XT

Posts: 16235
Location: Sydney, AUS
With the recent myth-busting regarding GC8 rear strut hats fitting Foresters, here's some clarification on the matter once and for all. If anything needs to be added or amended please let me know! Thanks to staples, BJM, bertjamsam, magus and 20INCH on GTrydaz for their input.

All SF and SG Foresters share the same strut hat stud spacing as each other (both front and rear).

The rear strut hat stud spacing is the same as the MY01+ WRX (GD models etc). This means factory or aftermarket struts/coilovers require strut hats that suit these models (or factory Forester strut hats). This is the Forester and GD WRX/STI rear strut hat stud spacing:

Image




The front strut hat stud spacing is the same on both GC and GD WRXs and STIs. This means that factory or aftermarket that suit these models should have the correct strut hat stud spacing for the Forester.

However, there is a difference in the front strut hat stud orientation. The SF Foresters and GC Imprezas have the same front strut hat stud orientation. The SG Foresters and GD Imprezas have strut hats which are rotated in terms of the stud orientation. The front strut hats are seated on a ball bearing top to enable the strut assembly to rotate along with the steering of the car, so it is very simple to orientate the front strut hats correctly for your application. The only forseeable issue that this may cause is when GD-style coilvers are fitted in the front of SF Foresters. Given that the GD coilover strut hats may be optimised to allow camber and caster adjustment when fitted in a certain orientation, turning the strut hat may affect this adjustment.

You can see the different strut hat stud orientation here:

Image

Image




SO... what's the go re: suspension compabibility?

Hopefully the below table helps to clarify the situation. If it requires amendment please let me know!


NOTE: For the purposes of cross-referencin
Version 1 and 2 = approx. MY94-96
Version 3 = MY97
Version 4 = MY98
Version 5 = MY99
Version 6 = MY00
Version 7 = MY01+ (Version 8 is somewhere after this)



Image


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Thu Aug 28, 2008 6:37 pm 
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I Say: I'd have to save up to be broke
Vehicle: 05XTL Rattlebox

Posts: 5071
Location: SE Brisbane, QLD
Would these all have to be wagon springs, as to avoid bum sag?


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Thu Aug 28, 2008 6:39 pm 
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I Say: Nowhere near as much as I used to!
Vehicle: Gone but not forgotten-MY08 XT

Posts: 16235
Location: Sydney, AUS
Nick wrote:
Would these all have to be wagon springs, as to avoid bum sag?


STI sedan rear springs are stiffer so they don't sag like the WRX sedan springs. If you're sourcing normal Impreza gear, wagon springs are the preferred option.


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Thu Aug 28, 2008 7:52 pm 
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Vehicle: 2002 GT

Posts: 548
Location: Sydney
ive been thinking about this for sometime.

Do you think that the most preferred springs and struts to retrofit from a WRX to a Forester - talking SF5 - would be off the bug eye 01/02 WRX would be preferred because they were the heaviest of all the WRX's and as a result they would cope "better" with the greater weight of the Forester. STI of this model better still as its a little heavier and would be closer to the Forester weight.


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Thu Aug 28, 2008 8:18 pm 
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I Say: Nowhere near as much as I used to!
Vehicle: Gone but not forgotten-MY08 XT

Posts: 16235
Location: Sydney, AUS
haitch wrote:
ive been thinking about this for sometime.

Do you think that the most preferred springs and struts to retrofit from a WRX to a Forester - talking SF5 - would be off the bug eye 01/02 WRX would be preferred because they were the heaviest of all the WRX's and as a result they would cope "better" with the greater weight of the Forester. STI of this model better still as its a little heavier and would be closer to the Forester weight.


I don't think would be the case, as the WRX's got heavier as time progressed. The kerb weight (hatch/wagon) of the MY01-05 was 1410kg, 06-07 is 1430kg. The sedans in each model are generally 15-20kg lighter and have the softer rear springs which are no good. STI springs are a much higher spring rate so they help resist bum-saggus.


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Fri Sep 12, 2008 9:20 am 
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I Say: Go Hard Keyboard Warriors !!
Vehicle: Subaru フォレスターSTI 04 SG9

Posts: 3784
Location: Mackay, QLD
Does the XT have Inverted Struts ??

_________________
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2004 Subaru Forester STI - JDM571
Before
2006 Subaru STI Forester - PHA745


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Wed Sep 24, 2008 5:32 pm 
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I Say: The flow, go with it my children.
Vehicle: Gold 02 GT

Posts: 3321
Location: Coffs Harbour, NSW
I might have to make an addition to this topic when I find out the exact issue that caused my recent strut rear strut rubbage issues.

Current guess is my struts are not new 01 wrx struts like I was told but actually new 99 wrx struts, did these have different specs to the later struts to suit the 200 kg heavier 01+ wrx?

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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Sat Oct 04, 2008 2:16 pm 
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I Say: Zerosports JDM build coming up!
Vehicle: 3 X Personal import T/tb's

Posts: 7394
Location: Sydney
i have some stock rear XT strut tops

will they bolt onto my Pedders coilovers (rear), designed for wrx, that take my stock GT top hats?

my stock rear gt top hats appear to be shagged!


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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Sun Oct 26, 2008 1:40 pm 
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I Say: So these two chicks were sitting quietly, minding their own business...
Vehicle: MY05 XTL 5MT

Posts: 16302
Location: Lake Macquarie, NSW
A question. I have Bug Eye STi struts, this means they will fit in without needing to change top hats? Just clarifying.

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I don't understand the underlying technicalities
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 Post subject: Re: WHICH WRX STRUTS/SPRINGS/COILOVERS FIT FORESTERS?
PostPosted: Sun Oct 26, 2008 2:02 pm 
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I Say: I'd have to save up to be broke
Vehicle: 05XTL Rattlebox

Posts: 5071
Location: SE Brisbane, QLD
Sackster wrote:
A question. I have Bug Eye STi struts, this means they will fit in without needing to change top hats? Just clarifying.

Yes, the top hats should be the same.


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