View Single Post
      04-21-2014, 12:38 PM   #38
exdos
Second Lieutenant
England
6
Rep
222
Posts

Drives: Z3 M Coupe(S54) and Z4 M Coupe
Join Date: Apr 2008
Location: UK

iTrader: (0)

Quote:
Originally Posted by 3002 tii View Post
Can you explain why a stiffer ARB wouldn't effectively stiffen up the springs and help alleviate the issues I described?
The ARBs effectively connect left and right springs on the same axle which overcomes the "independent" nature of springs and dampers working at all 4 corners. Therefore, when cornering, the ARB resists lateral body roll because the suspension on the same axles are joined by the ARB, but under acceleration and braking the front and rear springs are not joined in a similar way so pitching and lifting aren't resisted by stiffer ARBs.

You'll find that stiffer springs and dampers at the front of the Z4MC will better prevent the pitching and lifting as well as help to reduce lateral bodyroll.
Appreciate 0