f638226b_up_racing__washingtonpost_com___Shock_absorbers
[Track types] ROAD COURSE Infineon (Sonoma, Calif.) Watkins Glen (N.Y.) [Wedge] Even The only time wedge would be anything but exactly even (50 percent) on a road course would be if the driver complains of being both tight in left turns and loose in right turns. [Track bar] Varies The track bar is set very high at Sonoma to help the back end swing around in the corners. It is set low at Watkins Glen for stability entering corners at high speed. [Nose weight] Back On road courses, weight is farther back than anywhere but a superspeedway, because the car needs to be loose to make sharp turns. [Brakes] Heavy brakes / slightly front Heavy brakes are required, because road courses are flat and the turns are sharp. Mid-corner speeds are as slow as 40 mph. Teams use no tape over grille openings. Bias is set to just slightly favor the front brakes. [Camber] High angle/all tires lean in All tires lean because cars turn both right and left. [Springs] Very soft Teams use the softest springs, similar to those used on short tracks, because speeds are slow and the corners flat. [Shock absorbers] 
Soft Teams use very soft shocks at Sonoma, because the car needs grip for slow, tight, unbanked corners. Watkins Glen requires slightly stiffer ones because of the faster speeds.
Setting up to succeed at Sprint Cup racing (washingtonpost.com)
Shock absorbers