Quote:
Originally Posted by s20525xxx
IMO, thick front bar will decrease understeer by pushingdown front wheel. Coilover's job is to prevent body roll, so it will fulfill swaybar 's job, adding stiff swaybar will just decrease tyre's contact area and create understeer.
PS: c u at UWA! Andrew
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I think your opinion is incorrect this time. However, my experience is only with the GC wrx, I doubt the RS would be overly different.
"A swaybar is a simple torsion bar that opposes body roll by linking the suspension movement of the wheels at one end of the vehicle.
The stiffer/thicker rear swaybar increases the load on the outside rear tyre during cornering. This reduces the adhesion of that particular tyre so the rear-end of the vehicle becomes more unstable, offsetting some of the WRX's inherent understeer. Second - assuming a reasonable amount of chassis rigidity - a stiffer rear 'bar will also result in slightly less roll at the front of the vehicle. This better distributes the cornering loads on the front tyres, partially relieving the tortured outside front tyre. The third benefit of increased rear roll stiffness is more consistent alignment angles due to reduced suspension travel."
Have a read of Whiteline's "Rex on rails" series.
http://www.whiteline.com.au/articles...on_rails_1.pdf
http://www.whiteline.com.au/articles...on_rails_2.pdf
http://www.whiteline.com.au/articles...on_rails_3.pdf
http://www.whiteline.com.au/articles...on_rails_4.pdf
http://www.whiteline.com.au/articles...on_rails_5.pdf