Quote:
Originally Posted by 2.2Lude
So how does a stiffer front bar both INCREASE understeer and INCREASE/ADD grip?
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My thoughts:
The bar restricts the amount of weight being transferred from one to the other side of the car. The weight transfer can both increase and decrease grip.
Front wheels - At any combination and speed and steering angle…too little weight transfer means you won’t get the maximum grip the outer tire provides, because there isn’t enough weight pushing down on the tire. Therefore the general saying of “stiff front bar = under steer”. Then at the other extreme….disconnect the front bar, let all the weight freely transfer side to side. In the same cornering scenario, most likely, it’ll give you a split second of strong directional change response. However, while downward force in the tire is good, the added momentum is the negative byproduct. Without the front bar, your outer front tire is left to fight all the momentum, and quickly others overwhelmed.
So the relationship between bar stiffness and over/understeer isn’t a single direction curve. I would imagine it to be more convex, and certainly chassis dependent.