The_Man wrote:Most references including Milliken, Gellispie and Carroll Smith directly talk about frequency ranges. Race car they should be between 2-3Hz, lesser for sedans,etc. They quote numbers and say this is the range they come from usually so you must follow the same.
Noooo, no no no. Funny enough I ran into Doug Milliken today.
The term "suspension frequency" is kind of vague. The thing you're talking about is the sprung mass natural frequency. It is one
natural frequency of a vehicle. Really just a measure of how heavily sprung a car is. High downforce open wheelers tend
to migrate to very stiff setups to control to movement of the chassis (and aero elements), which in turn results in a higher natural rate.
The numbers in RCVD are representative of a broad range of vehicles and where things tend to end up, but by no means do you HAVE to be in that range.
Grip is a four letter word. All opinions are my own and not those of current or previous employers.