M3hunter

I'm planning to auto cross this weekend. I have a staggered set up 275/40R19 r & 255/40R19 f mounted on oem brembo wheels (9x19), I have KONI STRT with STEEDA sport springs. What alignment specs do I need to look for, in order to reduce understeer?

Norm Peterson

Have you ever autocrossed before?


Try running the front tire pressure something like 35 - 36 psi and the rears 4 - 6 psi less for starters. These cold pressures will increase during each run and you'll probably want to hold the front tire hot pressures to 38-ish and the rears still 4 - 6 less.

Time is getting pretty short for this weekend, which leaves you with doing as much as you can as a driver to avoid thrashing the steering wheel left and right and going too hot into the turns. Overdriving = overloading the front tires = heavy understeer.


With more time, there may be something to be gained by setting your camber more negative. I say "may be" because I don't know where your cambers are at or if you even have a way of adjusting it. If you do, I hope that it isn't "camber bolts" other than Ford's own or some that are intended to be torqued to Ford's full 166 ft-lb spec.


Norm

M3hunter

Thanks for the advice Norm.
Yes I used to track a Porsche Carrera