Originally Posted by CypressMidWest

1. Dynamic caster reduces the caster angle as the suspension is compressed. As you drive into a turn, the outside front wheel becomes loaded, and the suspension compresses. As the kingpin moves more towards vertical, the car should actually gain steering. The three different blocks allow you to tailor the handling of the car by altering the amount of change the car can undergo during a turn.

2. The side springs are there to support the chassis as it rolls under cornering. Generally, the more the chassis can roll, the more sidebite the rear-end will have. The downside is that the car won't change directions as quickly.