Sway Bars - Subaru WRX Forum
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#1 Old 03-25-2008, 04:07 AM
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Question Sway Bars

I have been looking into getting a set of sway bars for both front and rear. Can anyone tell me what the differance between the 22mm, 24mm, and the 27mm.

Now I know if I do front and rear the car will react the same way in terms of understeer/oversteer where if I do just the rear I get oversteer and visa versa with the front and understeer. How do the widths come in to play. Is it the wider the more oversteer/understeer you get. Or does the width justify the amount of stiffness in a turn?

Also what would happen if you put say a 27mm front and rear sway bar on?

Thanks.

Nicolas

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#2 Old 03-25-2008, 06:14 AM
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Well the number isnt width. Its the diameter of the bar. Thicker usually equals stiffer. Do you track the car much/often You porbably dont need to get the 27mm unless you just want to say you have it.

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#3 Old 03-25-2008, 06:37 AM
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Width...Diameter we were talking about the same thing, I guess I just used the wrong term, sorry.

I do alot of autocross, I basically want as much grip as possible. Also If I want more oversteer do I need to put a thicker bar in the back?

Nicolas

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#4 Old 03-25-2008, 07:11 AM
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The wider the bar the stronger it is, so therefore the more stiff it makes the chassis. There are also adjustable bars for that. As far is doing both, or just front or rear I only did the rear for the specific reason I want to create more overtseer than understeer in a corner. I have my 22mm rear adj. swaybar set to the middle stiffness setting, and with kartboy endlinks I feel my back end push around on hard cornering. I could not understand anyone doing jus the front, there's almost no point. Oh yeah and all that hard cornering is done on a track

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#5 Old 03-25-2008, 07:14 AM
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why did you ask this twice?

edit- sorry must have been a double post.

Mike
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Last edited by Longshot; 03-25-2008 at 07:15 AM. Reason: doublepost
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#6 Old 03-25-2008, 07:58 AM
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The 27 mm work great for autoX, as long as you have upgraded spring and sturts. On stock parts it will lift a wheel on hard turns. I would also get endlinks and upgraded rear mounts, yhe 02 are weak.
Read the 5th post it will help Sway Bars for 02 WRX - Brakes, Steering & Suspension - NASIOC
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#7 Old 03-25-2008, 10:04 AM
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According to that article for autoX I don't want to have bigger than a 24 in the back but I want a 24 to 26 up front.

Now here's another question. Is there such a thing as an upgrade to the spring that will work with the stock strut and not change the ride height.

Nicolas

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#8 Old 03-25-2008, 11:28 AM
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lifting a wheel on hard turns is not a bad thing by any stretch. its not as though you have reduced traction because the inside wheel comes off the ground. all the weight is being pushed to the outside anyway and the inside does very little to turn the car if you are carrying enough lateral G.
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#9 Old 03-25-2008, 01:56 PM
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I dunno about you guys, but I think it looks pretty cool when a WRX lifts a wheel

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#10 Old 03-25-2008, 06:46 PM
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Perrin and Cobb claim that their springs work with the stock struts, but they lower the car some also.

Joshua
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#11 Old 03-25-2008, 07:00 PM
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yea they do lower the car
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#12 Old 03-25-2008, 11:02 PM
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Lifting the tire is bad in not in the handling aspect, but in the acceleration aspect out of the corner.

lifting it means one less tire clawing for traction to put power to the ground.

what class do you want to run in autoX?

Robby
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I defected to an evo :)
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#13 Old 03-26-2008, 01:28 AM
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Quote:
Originally Posted by newtothegame View Post
Perrin and Cobb claim that their springs work with the stock struts, but they lower the car some also.
Do you know how much it lowers the car? Reason I'm asking is I want to keep around the same ride height for the occasional offroad excursion.

Nicolas

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#14 Old 03-26-2008, 11:31 AM
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Quote:
Originally Posted by WRXKidid775 View Post
Lifting the tire is bad in not in the handling aspect, but in the acceleration aspect out of the corner.
That statement is incorrect as both of these aspect rely on the exact same thing. if all the weight is on the outside, who cares if the inside tire has physical contact with the ground? the 1" difference between touching, and not touching, makes no noticeable change in traction or possible acceleration. its only really an issue if you are exceeding the available traction of the wheels you do have on the ground. hell, even F1 cars lift the inside tire.
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#15 Old 03-26-2008, 01:04 PM
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STI pinks are stiffer with very lillte drop,.https://www.subarugenuineparts.com/p...roducts_id=627
You will need to get 04 tophat.
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