View Single Post
      06-26-2019, 04:56 AM   #66
CanAutM3
General
CanAutM3's Avatar
Canada
21115
Rep
20,741
Posts

Drives: 2021 911 turbo
Join Date: Jan 2012
Location: Montreal

iTrader: (1)

Garage List
Quote:
Originally Posted by stevehifi View Post
From what I discussed with Alex, the CS coding is generic for both M3 and M4.

The shocks are valved the same (same dyno curves) and for a certain spring rate range (which the ZCP/Base springs fall into).

It's possible that there is a scaling factor applied based on the measurements
taken from the shock acceleration sensor (sensing the up and down motions
of the wheel when hitting bumps) and telling the electronic adjuster at the top of the shock to stiffen/soften the shock.

So if the M4 runs stiffer springs vs the M3, then it may not matter in the end, since the sensor really is the one determining the appropriate shock adjustment based on wheel motion (up/down).
I am surprised BMW would use the exact same EDC software for the F80 and F82 chassis. The two cars have different weight distribution and Cg heights. IMO, it’s more than just the accelerometer input, the starting position of the valves would be different.

If BMW really has the same EDC software in the M3cs than in the M4cs, it truly makes the M3cs a half ass effort.
__________________
Porsche 911 turbo 2021 992 GT Silver

Previous cars: M4cs 2019 F82 Limerock Grey / M4 2015 F82 Silverstone / M3 2008 E92 Silverstone / M3 2002 E46 Carbon Black
Appreciate 0