Originally Posted by
slotracer577
Don't confuse body roll or movement with weight transfer. They are often exactly opposite. Usually softer has more body movement and less transfer of weight. A stiff chassis has effectively infinite transfer of weight and potentially no body movement.
Trophy trucks are a great example. They have huge body movement on soft springs to reduce weight transfer since they race on low traction surfaces. Put them on a high traction surface and they almost roll over.
Look at how anti roll bars work, they stiffen up the vehicle in roll, increasing weight transfer and reducing roll. Usually they result in a net reduction of traction due to the increased weight transfer. That is ok since they are usually used on high traction surfaces to control body movement.
So if roll increases it doesn't automatically mean the weight transfer does. If I increased front droop and created more body roll towards the rear I may have to increase the rear spring rate to push back against the body roll and thus increase weight transfer at the rear and ADD grip?
Does roll increase grip or is it weight transfer? Or neither or both
"a net reduction of traction due to the increased weight transfer" - I always thought an increase in weight transfer was putting more weight over say the rear wheels and giving them more grip. I also thought body roll was the action that added that extra weight. If body roll doesn't add the weight over the wheel and is the opposite to weight transfer why does body roll increase traction such as in the example of the trophy truck?
I am struggling to wrap my head around this but thanks for the replies so far. I just think if I can understand it a little better my setup skills will improve.