Originally Posted by J-PaP
Was wondering if somebody could explain to me the following in reference to the front suspension on an F1 car (similar design to a f104 or Sp-1 etc.)
Angle of the top arm - What the effect is of having the angle of the arm tilting forward or back?
Angle of bottom arm - What the effect is of having the angle of the arm tilting forward or back?
Distance between top and bottom arm - Effect of increasing or decreasing the distance between the arms.
Angle of the upper front arm determines the amount of reactive caster. The more the upper arm is angled forward the bigger reduction in caster occurs when the suspension is compressed.
Angle of the lower front arm does nothing on most F1 cars. This only has an effect on double wishbone front suspensions like the aftermarket front suspension for the 3Racing F109. On cars with that type of suspension angling the lower arm backwards increases anti-dive. Dive is how much the front of the car lowers under deceleration.
The distance between and the angle of the arms effects the cars roll center.