Suspension setup

• Subject: Suspension setup
• From: E21Bob@domain.elided
• Date: Fri, 13 Sep 1996 20:02:50 -0400

Kudos to John Browne for a great down-to-earth discussion on fast driving and
car setup.  For people like me who are "physics impaired," here is a quick
and dirty chart for suspension setup (this is from info provided by BFG Comp
T/A engineers):

ADJUSTMENTS            DECREASE UNDERSTEER      DECREASE OVERSTEER

Front Tire Pressure         Lower               	              Higher
Rear Tire Pressure          Higher                                      Lower


Front Tire Section          Larger
                                      Smaller
Rear Tire Section          Smaller                                    Larger


Front Wheel Camber      More Negative                           More Positive
Rear Wheel Camber       More Positive                            More
Negative


Front Wheel Toe         Toward Toe-Out                            Toward
Toe-In
Rear Wheel Toe          Toward Toe-In                               Toward
Toe-Out


Front Wheel Caster      More Positive                              More
Negative


Front Springs              Soften
                                        Stiffen
Rear Springs               Stiffen
                                        Soften


Front Anti-sway Bar     Soften (Thinner)                           Stiffen
(Thicken)
Rear Anti-sway Bar      Stiffen (Thicker)                           Soften
(Thinner)


Weight Distribution     More Rearward                             More
Forward
  

Regards,
Bob Stommel
78 320iS, 88 M3, 95 M3

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