Fast damper values

We have the slow damper values in the Car Engineer app, which are very useful, and thanks for letting us see them, but how about the fast damper values? Is it possible these could be added also?

I for one find it very useful to see that info when tuning my dampers.

Thanks.

 

I don't think you can calculate a damping ratio or frequency from fast damping, since it's offset to start with by slow damping (so it's no longer directly proportional to speed, and the ratio would change at every speed of the damper)

 

Doesn't this design cause issues with fast damping? If a damper unit doesn't respond to pressure-spike and it always has to reach the threshold value in slow damping force before "blow-off", then it's way slower to reach the threshold point? Depending on initial slow damping values as well.

 

I've never seen any data to suggest real dampers work differently from that. So it must be ok.

 

If that's the case, force (=pressure) inside the damper would be linearly related to speed of the piston. In real world however, we have moving masses that won't reach infinite acceleration values, so it can't be linearly related..

For example where I see the issue: Hit a bicycle damper unit with a 10 kg sledgehammer (heavy input for the damper of it's size, similar to hitting sausage kerb or something at high speed) and see from the data the piston speed accelerated "through" the slow speed valving until fast speed threshold was achieved? Or will the pressure inside the damper rise sky high and the high speed valving opens pretty much instantly before much movement at all (not really affected by the slow speed damping values)?

 

Damper response curves look like this. There's no situation where moving a damper faster makes it respond with less force.

 

TBH when I spoke about "tuning" the dampers I meant that in a somewhat loose way. I know that decompression values are always supposed to be higher than compression values so seeing the actual values on screen would help me to "visualise" how I've got the dampers set up. I tend to start out with rebound about 1.5x that of bump and go from there.

I don't think this would be a hard thing for Kunos to add to the Car Engineer app and would be useful (to me anyway).

 

The damper blow off is used on heavily damped cars (aero cars) so that hitting a kerb or similar high energy input, lets the suspension move (springs to compress) instead of launching the car to the orbit. I know this is not possible in AC (of yet) and even some official cars have weird damping rates (dunno if it's because of this).

 

Hmm... I think that'd only be possible with negative fast bump in AC.