2006 f55 shocks
i want to firm up the shocks just like ferrari, porsche, etc drivers do from the drivers seat when on the track and then soften right up for the ride home
Last edited by frankgtb; Nov 15, 2011 at 07:27 AM.





Last edited by frankgtb; Nov 15, 2011 at 07:26 AM.
The control arm position sensor does not have anything to do with the "firmness" of te shock other than report the suspension position and its rate of change in position.
IMHO, if you want to make the shocks firmer you will need to get into the software that controls the shocks. Unfortunately, I have no idea how to do that.
The control arm position sensor does not have anything to do with the "firmness" of te shock other than report the suspension position and its rate of change in position.
IMHO, if you want to make the shocks firmer you will need to get into the software that controls the shocks. Unfortunately, I have no idea how to do that.
therefore we are exploring the idea of bypassing the module and control arm position sensor and setting the shocks to firm or soft by a switch in the cockpit
An example of how this works would be as follows. In sport mode assume you are making a hard left hand turn. It will greatly increase damping on the the right side shocks and decreasing rebound to the left side shocks. This tends to let the car turn flatter through the corner. As you straighten out the wheel it decreases damping on the left side and increase rebound to the right. This returns the car to a neutral stance faster.
But there is only so much you can do based on spring rate. And that is the biggest limitation of your setup. I have ran my 2008 in autocross the last 3 years. Dive is really bad IMO but that is a function of the spring not the shock for the most part. I also upgraded to Z51 sways to reduce roll this year and that helps. But if I forget to switch from tour to sport there is a huge difference in how the car handles. It is very hard to feel a difference at all on the road but it can be felt if you understand how the system works.
It does not make the ride soft and hard. That is the biggest misconception out there.





An example of how this works would be as follows. In sport mode assume you are making a hard left hand turn. It will greatly increase damping on the the right side shocks and decreasing rebound to the left side shocks. This tends to let the car turn flatter through the corner. As you straighten out the wheel it decreases damping on the left side and increase rebound to the right. This returns the car to a neutral stance faster.
But there is only so much you can do based on spring rate. And that is the biggest limitation of your setup. I have ran my 2008 in autocross the last 3 years. Dive is really bad IMO but that is a function of the spring not the shock for the most part. I also upgraded to Z51 sways to reduce roll this year and that helps. But if I forget to switch from tour to sport there is a huge difference in how the car handles. It is very hard to feel a difference at all on the road but it can be felt if you understand how the system works.
It does not make the ride soft and hard. That is the biggest misconception out there.
A significant part of the difference between Tour and Sport is the speed that the shocks react to change. It becomes noticeable if you quickly swerve left and right and repeat, then flip the switch during the process. Do it in an empty parking lot, so you don't get busted.







