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Old 05-30-2012, 03:42 PM
  #138  
6376vette
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Join Date: Jun 2011
Location: Northeast GA
Posts: 1,685
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Originally Posted by silverhkswrx
So additional spacers increase traction roll? I thought it was to reduce it...
By adding spaces under the inner camber link you are lowering the roll center and encouraging the chassis to roll more. If the roll center is too low then the chassis rolls over. The amount of droop in your suspension arms will increase or decrease the effect. Set your droop to 1mm and raise the roll center by pulling the spacers. You will be demanding more mechanical traction from your tires but the chassis won't roll as much and it should quit rolling over in the turns. If the roll center gets too high by causing the car to severely push then try adding 1mm back under the inner camber link. Its all a balance between droop roll center and suspension set up. Correct the traction rolling then you can adjust the suspension properly. You can also use roll center to increase or decrease tire temps because of the mechanical traction changes in the tire. Roll center is very misunderstood. A lot of people just set it as low as they can and go with it. If you can find the proper roll center for the car and the racing surface you can really dial in the rest of your suspension and have a car that is glued to the track.
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