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Go Back   IWSTI.com: Subaru WRX STI Forums > GD Series STi Discussion (2003/4-2007) > GD-Technical > GD-Suspension, Handling, & Stiffening


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Old 11-01-2006, 11:31 AM   #1
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Default Sway bars, how big ?

Ive been pondering this question for quite some time now...i just got my BC Racing coilovers (the 2nd generation ones) and im planning on installing them soon along to go with a set of Whiteline sways that ive been wanting forever. Now..i know that sway bars compensate for the lack of stiffer springs, and my coilovers came in an 8k/6k configuration so do u guys think its a bit overkill to run the 27mm adjustabe Whiteline FSB and the 24mm adjustable RSB ? Any comments would be great, thanks !


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Old 11-01-2006, 11:40 AM   #2
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I wouldn't run that big a bars with those spring rates.

Id probably run 24mm all around or a 22mm in the back.
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Old 11-01-2006, 11:43 AM   #3
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Yea, thats what i was thinking too. But for the sake of curiosity, whats the ill effects of going that big ? Extreme wheel lift most likely right ?
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Old 11-01-2006, 11:59 AM   #4
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Well.....To much roll stifness takes away from the 'independent" nature of our suspension.

You dont want your effective spring rates on each corner to overpower the tires either.
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Old 11-01-2006, 12:27 PM   #5
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Could somebody explain Whiteline's bar sizes and adjustability to me?

I see numbers for 24mm/25mm/27mm but I have no idea what those various bars adjust to.
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Old 11-01-2006, 12:31 PM   #6
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For the front or the back?
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Old 11-01-2006, 12:34 PM   #7
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Quote:
Originally Posted by flatthump
For the front or the back?
I assume the rear bar is adjustable for 22mm/24mm/26mm... but what's the actual size of the bar? 22mm but can be adjusted to simulate the strength of a thicker bar?

The front ones confuse me because there's at least two different ones. What sizes do they offer and what can they be adjusted to? I know there's one that's about 27mm in size, does it adjust at 27mm/28mm/29mm? What about the smaller one?

I've been searching vendor sites and I can't seem to find any decent info.
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Old 11-01-2006, 12:48 PM   #8
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Thanks for the input flatthump...so in your opinion, u think i should go with the 24mm adjustable front and the 22mm adjustable in the rear ?
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Old 11-01-2006, 12:54 PM   #9
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The thing that's missing is you haven't told us what you do, and plan to do with the car.

Plus - if street driven - how aggressively? Be honest here - I'm not gonna cry that you're gonna crash while racing in a school zone - I'm going to give you the best answer I can without judgement.
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Old 11-01-2006, 12:57 PM   #10
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I have the cusco's right now, but am stepping up to the whitelines any day now.

I love the cusco's, I just want a little more.
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Old 11-01-2006, 12:58 PM   #11
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listen to the man. he knows what he's talking about. i drive my sti daily, but i would classify myself as a pretty tame driver. i have whiteline adjustable sways set at 26mm front and 24mm rear. this set-up has been great for me.
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Old 11-01-2006, 12:59 PM   #12
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For the front I think they offer NON-adjustable for the following....22mm 24mm aand 27mm.

I think theey offer those same bars but adjustable.(extra hole drilled) So the adjustable bars are the same size as the NON-adjustable bars but can be 'adjusted' to gve you a slghtly stffer rate.

For the rear...I think they come in the following sizes for non-adjustable:22mm 24mm 27mm.

They offer those same size bars but adjustable too(three position).

I wouldn't feel comfortable guessing the 'effective' diameter when adjusting sways stiffer.
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Old 11-01-2006, 01:01 PM   #13
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Im just looking for an overall better hanndling car, im not a track day racer or anything, although ill someday go to the track for fun. I love having a car that has a good solid feel to it. Im your average once-in-a-while canyon carver. Basically im looking for a mild street setup.
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Old 11-01-2006, 01:04 PM   #14
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24mm front and 22mm then....Unless you are an experenced driver who likes oversteer....then Id get the 24mm rear
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Old 11-01-2006, 01:21 PM   #15
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I would recommend the cusco bars then. It sounds like the large whitelines may be a tad bit too much for your needs.


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