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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 05-28-2007, 04:36 PM   #1
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Default Sway settings for auto-x

I am going to get a pair of 24mm front rear sways very soon ( as soon as Andrew @ race comp ships them) And way wondering what is the best setting to have the on with stock suspension with -2 camber front -1.3 camber rear. I was thinking to set both at full stiff then reduce front if understeering or reduce rear is oversteering.


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Old 05-28-2007, 04:45 PM   #2
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Default Re: Sway settings for auto-x

Set the front to full stiff and the rear to soft.

I've seen national level STis run a very large FSB set to stiff and no rear bar.
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Old 05-28-2007, 05:20 PM   #3
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Default Re: Sway settings for auto-x

Quote:
Originally Posted by Risk3233
Set the front to full stiff and the rear to soft.

I've seen national level STis run a very large FSB set to stiff and no rear bar.
It depends on spring rates.
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Old 05-28-2007, 05:23 PM   #4
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Default Re: Sway settings for auto-x

My spring rates are very very very stock.
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Old 05-28-2007, 05:25 PM   #5
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Default Re: Sway settings for auto-x

29mm big bar up front(ideally) 26mm for you, 24mm out back for springs on stock struts.
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Old 05-28-2007, 06:13 PM   #6
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Default Re: Sway settings for auto-x

What it actually, actually, actually depends on is grip.

Think of it like this: Case #1, your car has tires made of wood. You do a run. There ain't much grip. Case #2, your car has slicks. There is allofasudden a ****load of grip. Relative to your bar settings, the important thing is that the *relationship* between front and rear is changing along with the overall grip level.

The F/R relationship for a well-prepped STU car is going to be different than for a well-prepped AS car (as if there were such a thing)... and different from a well-prepped BSP or SM car.

On STU-ish tires and OE springs, you may be able to find something acceptable with a pair of 24mm bars, although you'd be much better off with more spring. On race tires, forget about it. In AS, you will want much more FSB, and probably a little less RSB. In BSP you'll want something more like 24mm in front, but then no bar in back... and something on the order of #850/#550 springs.
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Old 06-02-2007, 09:20 AM   #7
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Default Re: Sway settings for auto-x

what size front swaybar should i go with if i have tein flexs (10kg/8kg) and a perrin 22mm rear swaybar? im leaning towards a whiteline 27mm fsb or is that too big for a 22mm rear?


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