Apologies upfront for the long post. Tuning this system gets a bit technical... TL;DR = I made a new "Touring" map below for long road trip comfort and had to do some math to figure out how to tune it.
I've been spending some time working on a Touring map for the suspension and I thought I'd share the map. My wife and I are currently planning to take our 3rd "Grand Tour" in the RS later this year and our route plan has crossed the 4,000 mi mark so far. A well sorted ride is going to be important, but with the Tractive setup we are already miles ahead of our first two 3,300+ mi trips on the OEM system.
As I've been making tweaks to the DSC 3/16/20 map I've had trouble keeping things straight because the shocks have a working range of 1,900mA to 500mA, but the calibration table uses two different ranges front and rear of 1,650mA to 600mA and 1,500mA and 400mA, respectively. There is an offset built into the calibration menu which is a bit tough for my limited brain to keep track of. For example, when the supplied map says each corner is set at 25% stiffness in reality the fronts are getting 1,388mA and the rears are getting 1,225mA.
I'm sure DSC has their reasoning for doing this. It makes it very easy to scale the whole map rather than changing individual numbers, for example, but I wanted to keep track of absolutes as I worked on my map to keep things clearer and to better visualize how much of the shock's capability I am using.
So, I transformed the DSC 3/16/20 map to use the full shock calibration range of 1,900mA to 500mA.
From there I then softened up the "core" of the map by using 80% of the original values and feathering that out to 100% at the edges of the map. I also dialed back the soft inside shock settings that I understand were there originally to keep the car from being upset by curbing on the track. I have no plans on hitting curbing Normal mode and I didn't like how soft it made one of the front shocks under hard braking. On the street if I need to hit the brakes hard to avoid something I didn't want one side going so soft, so I dialed that back a bit as well for predictability.
Here is the Touring map I'm running now as it currently stands. Note that this has been re-scaled to the full shock range.
I've also included a version of it that sends the exact same mA's to the shocks but uses the DSC calibration with the F/R offset. In other words, both the map above and below are sending the same mA signal to the LF shock at 0G condition even though one shows 29% and one shows 15%.
Curious what you think of this approach and if it's a valid way to go about the tuning process. I've driven on this new map and really like it. It's quite soft when driving calmly, but stiffens up quickly if I toss it round a corner.