stiffy time! - Subaru WRX Forum
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post #1 of 17 Old 04-07-2009, 09:35 PM Thread Starter
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stiffy time!

hahaha

i have an 06 wrx, i'm currently at stage 2 and what i'm really looking to do next is to drop it and have some great handling while not driving as if i were using solid bars as springs.

my plan is to run some basic upper sway bars, they're pretty cheap and they help stiffen my ride up-that i have no concern about but what i am still trying to figure out is what springs to run.

I know 2" or more of a drop messes with the geometry too much and i would also have to roll my fenders so i'm set on 1.5" drop.. i drive my car everyday and its on the street 99% of the time, i want to have a decently stiff setup but nothing too crazy, i heard tein s springs r garbage and the cobb lowers the car too much. does anyone have suggestions for me?
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post #2 of 17 Old 04-07-2009, 09:47 PM
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what springs would best suite me?

there's some links in this thread that might interest you

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post #3 of 17 Old 04-08-2009, 01:08 AM
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Funny I see this thread. Ive been on a religious springs research lately and I want the same thing. I wanted just a little bit of a drop and a spring set-up that was aimed more at performance than anything and was easy on your struts.

Ive came to a conclusion that the Tanabe GF210 is the best approach. IMO

CVR Motorsports - Subaru :: WRX STI :: 2006-2007 :: Suspension :: Springs :: GF210 Lowering Springs
1.0 inch drop in front and .5 inch drop in rear.

CVR Motorsports - Subaru :: WRX STI :: 2004-2005 :: Suspension :: Springs :: GF210 Lowering Springs
1.3 drop in fron and 1.0 drop in rear. (although it states that it was designed for an 04 sti but will fit your car.) I would stay away from this one because 04's have a slightly different suspension set up, so i'm sure you would run into fitment issues.

Stay away from the df210s.

Make sure it's a gf210

rollin on 17's now and they're dirty
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post #4 of 17 Old 04-08-2009, 01:27 AM
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I would seriously recommend against ALL lowering spring options for a WRX if you don't first change struts. The stock struts just can't handle stronger spring rates. You end up just driving on the springs and it may look dropped, but the ride and handling is utter crap.

The cheap strut option is to track down some used 04 STi struts (later years won't fit). Those can handle JDM pink springs which will give you probably an inch drop over a stock WRX all while improving your handling.

CVR Motorsports - Subaru :: WRX STI :: 2006-2007 :: Suspension :: Springs :: GF210 Lowering Springs
These are really not WRX springs. They're a staggering 324 lb/in springrate in the front which is 62% stiffer than WRX stock if that link is to be believed. Your struts sure as hell can't handle that worth a damn. Tien H-Tech springs for an 06 WRX, just for reference, are only 229 lb/in. Not that I recommend those. They're a 1.8" inch front drop and only a 15% stiffer spring. Just putting realistic numbers out there I know was actually designed for a WRX (well, not to make it handle better, just not brake anything too badly).
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post #5 of 17 Old 04-08-2009, 01:36 AM
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Yea very true, the STI struts do last a bit longer than the wrx struts when lowered, although those only drop 1 inch and .5 rear. So it's the lesser of all evils.

rollin on 17's now and they're dirty
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post #6 of 17 Old 04-08-2009, 01:46 AM
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It's not so much the ride height as the springrate. The struts have a limit to how much springrate they can deal with before they might as well not be there. Now, if your spring is simply too short, you'll just destory the handling, the ride quality, and probably rub the wheel on the fender but your strut won't be that unhappy
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post #7 of 17 Old 04-08-2009, 10:50 AM
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I would look into these as well, by far our most popular spring for the Subaru platforms. Although I can't comment on longevity of the stock shocks with these springs, I think they are exactly what you are after, and remember we won't be beat in regards to price!

Swift Sport Springs (WRX/STI) - Modern Automotive Performance
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post #8 of 17 Old 04-08-2009, 10:57 AM
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Quote:
Originally Posted by Burd@MAP View Post
I would look into these as well, by far our most popular spring for the Subaru platforms. Although I can't comment on longevity of the stock shocks with these springs, I think they are exactly what you are after, and remember we won't be beat in regards to price!

Swift Sport Springs (WRX/STI) - Modern Automotive Performance
What are the springrates of those springs? The website links me here:
http://www.swiftsprings.com/file/ss.pdf
but it doesn't work.

It appears the swift sport spring is not a graduated spring. Particularly in the rear, that's going to be interesting. If you have wide tires or a low offset, I would not recommend those springs as they will likely reduce rear fender clearance on bumps drastically.
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post #9 of 17 Old 04-08-2009, 02:21 PM
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http://www.racecompengineering.com/i...tegory=Springs
4th from the top

the racecomp engineering black "regular guy" springs is one of the best as well. No one has done as much extensive research and testing than the racecomp engineering springs, but it does come with a price.

rollin on 17's now and they're dirty
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post #10 of 17 Old 04-09-2009, 03:15 PM
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Good info here Shocks/struts - Google Docs
I am with Moss on this, the spring/strut combo have to be matched to work well. If you want pure performance you need coilovers, and give up the smooth ride. You could also look at Ground Control, Ground Control Suspension Systems, and get the rates you want.
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post #11 of 17 Old 04-09-2009, 04:20 PM
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here is a list of some spring rates for different springs. some of the ones mentioned in this thread are not on the list, but there is still some good info.
Attached Files
File Type: doc wrx-sti-spring-rates.doc (91.5 KB, 148 views)

Dom Tuned 2003 WRX Wagon
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post #12 of 17 Old 04-09-2009, 04:56 PM
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I would just save your money up and go with a nice set of Coilovers
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post #13 of 17 Old 04-12-2009, 08:50 PM
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i have the cobb spring right now and they didnt lower my car that much. im looking to go lower and am looking at the h&r coilovers that i have heard alot of good things about
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post #14 of 17 Old 04-20-2009, 12:05 AM Thread Starter
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ok so now i'm in a new predicatment..

i still wana go about 1.5" drop but i will also be able to use my buddies sti struts (his is an 07 and my wrx is an 06 will his fit?) can i go any lower w/ rubbing? obviously the new struts will be a lot stronger but am i gaining anything else besides that?
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post #15 of 17 Old 04-20-2009, 09:28 AM
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No they won't fit. Yes, they'd probably rub, No, the STi struts aren't "A LOT" stronger, not strong enough for a 1.5" drop anyway. No, you're not gaining anything with a 1.5" drop.

If you REALLY want to get that kind of drop (I have no idea why you do), your only non-awful performance option is coilovers. Stiff ones.
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