ZPOST - View Single Post - Increase Spring Rate or Thicker Front Sway?

3002 tii · 11-05-2012, 10:11 AM

Currently running 255 square, -2.8 degrees up front, AST 4100 450/550. Car is pretty neutral in my opinion but I realized as I learn to carry more speed into turns, I find myself needing to trail brake more to increase the front end grip. In order to rotate the car better, is it time for me to look into

a) stiffer springs
b) thicker front (only) sway
c) re-analyzing my lines?

I know the 450/550 combo is soft compared to what others are running but this was TCK's recommendation and I find it perfect for the tracks I've been on. Rear end doesn't get get loose on bumps and still civilized enough for street. My only concern however with upgrading to a thicker sway (25mm factory, 27mm H&R) is the dreaded sway bar tabs from factory. I know it'll only be a matter of time before they rip although I suppose I can always add reinforcement from the beginning.

Thoughts?

11-05-2012, 10:11 AM	#1
3002 tii Lieutenant General 2300 Rep 12,570 Posts Drives: Z4 M, X5, GX460 Join Date: Apr 2008 Location: CT iTrader: (99) Garage List F15 X5 xDrive35i [8.75] E86 Z4 M [10.00] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.50] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [9.26]	Increase Spring Rate or Thicker Front Sway? Currently running 255 square, -2.8 degrees up front, AST 4100 450/550. Car is pretty neutral in my opinion but I realized as I learn to carry more speed into turns, I find myself needing to trail brake more to increase the front end grip. In order to rotate the car better, is it time for me to look into a) stiffer springs b) thicker front (only) sway c) re-analyzing my lines? I know the 450/550 combo is soft compared to what others are running but this was TCK's recommendation and I find it perfect for the tracks I've been on. Rear end doesn't get get loose on bumps and still civilized enough for street. My only concern however with upgrading to a thicker sway (25mm factory, 27mm H&R) is the dreaded sway bar tabs from factory. I know it'll only be a matter of time before they rip although I suppose I can always add reinforcement from the beginning. Thoughts? __________________ Follow for latest mods
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