Tony Posted April 23, 2006 Report Share Posted April 23, 2006 The under/over steer phenomenon has been exampled here in wim but there are some direct or indirect consequences for the Modified car you may find interesting either to exploit or belay. Component___________________Reduce Under-steer_____________Reduce Over-steer Weight Distribution....................Centre of gravity toward rear....................Centre of gravity toward front Front coils..................................................Softer................... ................................. Stiffer Rear coils.................................................Stiffer................... ....................................Softer Front sway bar..........................................Softer............................. ..........................Stiffer Rear sway bar...........................................Stiffer........................... ............................Softer Front tyre selection (1)....................Larger contact area (2)..............................Smaller contact area Rear tyre selection.........................Smaller contact area..................................Larger contact area (2) Front wheel rim width/diameter...............Larger (2)...................................................Smaller Rear wheel rim width/diameter................Smaller................................................. ....Larger (2)Front tyre pressure............................................Higher pressure...........................................Lower pressure Rear tyre pressure..............................Lower pressure...........................................Higher pressure Front camber................................Increase negative camber............................Reduce negative camber Rear camber..................................Reduce negative camber............................Increase negative camber Rear spoiler.............................................Smaller..................... ..................................Larger Ride height front.......................................Lower............................... ...........................Raise Ride height rear........................................raise............................... ............................lower Front toe................................................Increase..................... .................................Decrease Rear toe................................................Decrease..................... .................................Increase (1) Tyre contact is increased by using wider tyres, or tyres with less grooves in the tread, but fewer grooves has the opposite effect in wet weather. (2) These improve road holding, under most conditions. Quote Link to comment Share on other sites More sharing options...
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