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Corx
17-10-2017, 17:35
Hej everyone, just figured out that it is not possible to tune the fast damper settings of the Porsche GT3 R - is there any special reason why that is the case? Sorry if i missed something but just can't figure out a satisfying reason. Thanks in advance for any explanations i might missed.

Casey Ringley
17-10-2017, 18:21
That's one where we had good real data to match. Turns out that the dampers on the real car just don't change very much, if at all, in the high speed zone. They are 2-way adjustable (one dial for bump, one for rebound) and it only really changes the slow damping rate and the transition force where they move to fast rates. Dyno plots for them look a little bit like this.

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Corx
17-10-2017, 22:24
That's one where we had good real data to match. Turns out that the dampers on the real car just don't change very much, if at all, in the high speed zone. They are 2-way adjustable (one dial for bump, one for rebound) and it only really changes the slow damping rate and the transition force where they move to fast rates. Dyno plots for them look a little bit like this.


Thanks a lot and interesting Info that the Porsche dampers only move to such a minor extent in high speed zones. Didn't know that yet. Is there any particular reason why?

One additional question, probably to Jussi, since i'm just trying to figure out a good setup with Jussi's 0.96 supsension calculator. However the graphical pattern doesn't really seem to fit into the framework in case of the GT3 R - probably because of that issue. So would a "good" setup in that case just mean as well the typicall 80 % critical rebound and 50 % critical bump values or does it differ in that case?

Casey Ringley
18-10-2017, 01:08
Reason would be user friendliness, I suppose. GT3 cars go to teams of widely varying skill (read: more than a few with more money than experience) and they (Porsche) know for sure the car works best with that kind of fast damping rate. Better to lock it in at a range they know works than give too much freedom in range to mess it up.