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Old 09-20-2012, 07:52 PM   #1
gsrcrxsi
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Default stock spring rates for 3G WRX/STI 08+

so i came across this on another forum. wondering if these are all correct?


Stock WRX ('08)----------151#F / 136#R
Stock WRX (’09+) --------217#F / 194#R
Stock STI ('08-'10)-------217#F / 194#R
Stock STI ('11+)----------250#F / 297#R
STI Pinks-----------------280#F / 224#R

reason im asking is that i purchased a complete spring/strut assemblies from a 2011 WRX. (mainly just to scavenge misc parts from)

but my plan is to pair stock springs to Konis, for a winter setup. i have my stock 2010 springs still. just verifying that the 2010 and 2011 springs are exactly the same, both in terms of rate and ride height.

and on a seperate note, for informational purposes, are the stock 11+ STI rear springs really that stiff? how much drop do you get when putting STI springs on the WRX for the 3G?
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Last edited by gsrcrxsi; 09-25-2012 at 04:24 AM.
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Old 09-21-2012, 07:17 PM   #2
gsrcrxsi
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bump.
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Old 09-23-2012, 12:29 PM   #3
gsrcrxsi
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bump?
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Old 09-24-2012, 01:15 PM   #4
gsrcrxsi
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Bumpy
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Old 09-24-2012, 03:21 PM   #5
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don't have all your answers, but the sti pinks should drop you 10mm, according to my dealership's parts catalog:
front:
http://heubergersubaruparts.com/eCat...iteid%3D215892
rear:
http://heubergersubaruparts.com/eCat...iteid%3D215892

i am very happy to see this chart. i was wondering why my 08 wrx suspension was so soft! think i am going to go a similar route of just upgrading to another year's stock springs and struts, to keep my stock ride height, but still get a stiffer ride.

man alive, it's a bummer the 08 wrx is SOO detuned. didn't realize that when i picked mine up.

Last edited by isotopesope; 09-24-2012 at 03:45 PM. Reason: fixed links
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Old 09-24-2012, 09:33 PM   #6
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08 was a bad year for the impreza in general. The WRX was basically a 2.5i with a turbo and the 2.5i base model was one of the worst made. I know, I've got one.

I've even got rear drum brakes. You've got to go back to the early 90's to find another subaru with drum brakes. Also some of the interior trim suffered while they were still figuring out the new body style.
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Old 09-28-2012, 12:13 PM   #7
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Quote:
Originally Posted by Millhouse_5 View Post
I've even got rear drum brakes. You've got to go back to the early 90's to find another subaru with drum brakes. Also some of the interior trim suffered while they were still figuring out the new body style.
my 02 obs had drum brakes.
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Old 09-28-2012, 12:21 PM   #8
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i found a guy selling assembled springs and struts off his 2012 wrx that i am hoping to pick up next week or so. only 3k mileage on them. should be a nice upgrade, especially for how little he is asking for them. slightly stiffer with the stock ride height will be perfect for me. once i upgrade my front sway, i'll be done.
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Old 10-04-2012, 02:09 PM   #9
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bumps
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Old 10-05-2012, 03:40 PM   #10
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Or what about some forester or legacy springs? What are their rates? Can they be used to get a slight raise with an increased rate? (Since no one makes a stiffer spring that isn't a lowering spring)

Would love a slightly stiffer spring at stock height or maybe even a slight raise for morel bump travel and increased ground clearance during winter months.
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Old 10-06-2012, 05:51 PM   #11
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well it looks like the forester springs might be a little too much lift. somewhere around 2" lift over stock height, and arent any stiffer, or even softer than the stock WRX springs. ive thought about the swift sport forester springs (which lower the forester by 0.75" and have close to WRX rates (215/205lb). but the height might still be a little too much than what i want. the forester springs appear to have a different upper perch, so youd have to use the forester upper perch. i havent been able to find anything about the legacy springs other than that they use pretty high rear spring rates. nothing about spring height on a wrx.

maybe i havent been clear, but my goal is to slightly raise my wrx with springs. probably by about 0.5-0.75". and still have stock spring rates, or even slightly stiffer. i know i can use spacers, but that kind of defeats the purpose. i dont just want it higher for clearance, i want the increased suspension travel too. to handle larger bumps without hitting the bump stops and being harsh AND have more ground clearance for winter months. whatever i decide will be paired with wrx fitment KONI yellows. also if i can get slightly stiffer than stock rates, that would be ideal to handle the increased body roll of a higher ride height.

so far im still leaning toward just using the 2011 stock wrx springs, unless i can get some more information about other options.
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Old 10-08-2012, 03:29 PM   #12
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okay, so i briefly texted with my friend who works in the parts department at the subaru dealership here. according to him, 08's suspension was super soft, 09-10 suspension was stiffened up both in spring rates and damper rates, then in 11-12 the damping was stiffened up a bit again, but he said the spring rates remained the same as 09-10. he suspected the ride height would be identical. have you looked into king springs? he suggested them for your needs.
http://www.writerguy.com/primitive/susp.htm

he said their standard springs would give you a small lift, or you can use their "lifting" springs for something more substantial.

found this thread too, which echos the same sentiment about 09/10 and 11/12 being the same spring rate:
http://forums.nasioc.com/forums/show...php?p=38216741

finally picking up that stock '12 wrx suspension for myself tonight. looking forward to the upgrade from my 08 setup. good luck with your ideal winter setup.
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Old 11-05-2012, 07:35 PM   #13
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figured i'd update this. i did indeed go with the King Lift springs. I mated them up to my Koni shocks which had just returned from RMA. these springs lift the car about 1.25" and are about 25-30% stiffer than stock (rates not advertized)




after the lift, let the springs settle a few days, i got an alignment. ended up at -0.5 f/ -0.8r camber and 0 toe. not bad considering the lift.

i also got some 15" Team Dynamics Pro Rally 1's and some 215/65/15 General Altimax Arctic winter rubber
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Old 11-30-2012, 12:11 PM   #14
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how are you liking your new suspension? do you have any post-install photos of your car?
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Old 11-30-2012, 01:30 PM   #15
gsrcrxsi
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yup . these are great. pretty much the same stiffness as RCE blacks, but like 2" taller lol

i combined this suspension with

15x7" Team Dynamics Pro Rally 1
215/65/15 General Altimax Arctic

for a nice winter setup. so far loving it and eagerly awaiting significant snowfall





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Old 11-30-2012, 03:58 PM   #16
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holy crap! that looks soooo good!! love it. nice work.

that's the sort of car where mudflaps belong. i think slammed subies with mudflaps are contradictory and look silly.
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Old 01-28-2014, 09:50 PM   #17
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A bit a revival of this thread. I was looking for the STI spring rates and found this interesting information. Currently I'm using 2008 STI front and rear sturts on my rally 2004 Mini Cooper. Yes they do fit after some creative thinking. I've always used STI struts on my rally cars, Legacy, Suzuki Swift and the Mini. The STI struts are as good in street form as any of those cheap coil over struts. I won the 2005 PGT CRS championship on street pinks. Then the Suzuki on Pinks with no issues. So with the Mini I went with 2008 STI which now I know was way to soft. They performed well as I won the class on SS4!

Now I've just fitted a set of 2013 STI rears and noticed a big difference in stiffness in the springs and damper valving. Although the spring was shorter the ride height was the same due to the spring being stiffer.

Now I'm looking for a set of 2013 STI front struts to balance up the handling.
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Old 08-26-2014, 04:17 PM   #18
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Quote:
Originally Posted by gsrcrxsi View Post
Stock WRX ('08)----------151#F / 136#R
Stock WRX (09+) --------217#F / 194#R
Stock STI ('08-'10)-------217#F / 194#R
Stock STI ('11+)----------250#F / 297#R
STI Pinks-----------------280#F / 224#R
I'm assuming this is backwards.
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Old 08-26-2014, 04:38 PM   #19
isotopesope
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Quote:
Originally Posted by chimchimm5 View Post
I'm assuming this is backwards.
no, that is the correct spring rate.
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Old 08-26-2014, 08:50 PM   #20
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Quote:
Originally Posted by isotopesope View Post
no, that is the correct spring rate.

Wow the 11+ STI must really be easy to kick the tail out. Unless the sway bar is a lot smaller or the front bigger.


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Old 08-26-2014, 10:28 PM   #21
isotopesope
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This article talks about all the changes for the 2011 STi, with nice detail:
http://m.autoblog.com/2010/07/19/201...iew-road-test/

I have 2011 STi springs and koni's on my 08, paired with a WL adjustable 22mm rear sway bar set to soft. I love it in the turns! Planning on a 22mm front eventually. The rear can be a bit stiff for rough roads, and makes me wonder if the 250# f/r 2010 STi SE springs would be a bit better for a strict daily driver.
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