This is by me from another post:
I think another problem with the shocks in general is that it seems like the game is artificially preventing the car from bouncing based only on upgrade level. Now, this game isnt a simulator, but to see what I mean, take the default car, fully upgrade it, and make the springs full hardness. Should be pretty bouncy right? Wrong. Besides constant wheelieing, the car takes all jumps well. It seems like a different force is preventing the car from bouncing up on impact, even though it effectively has no suspension, solely because the shock is fully upgraded. This raises the question of what is being upgraded. It seems like its the shock oil being thickened, but you seem to be the expert, so what do you think. I'm probably just overcomplicating the whole thing
. Really, though, the way the wheel snaps back down almost instantly makes it seem like there is no oil in there at all (but they could be friction style for all I know...)
This is my theory.