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[335 oClock]

How would a tire size affect the over/understeer of the car?

I am running 19x8.5 +35 front 19x9.5 +22 rear with 235/35/19 and 265/30/19 and want to step it up to 245/35/19 up front with 265/30/19

would this cause over or understeer and why? what would be a better set up?

thanks!

[richard in NC]

In theory, increased front width reduces understeer. It should not "cause" oversteer given the rear are still wider. One caution is to check tire heights. An imbalance f/r can cause DSC issues.

[335 oClock]

Originally Posted by richard in NC

In theory, increased front width reduces understeer. It should not "cause" oversteer given the rear are still wider. One caution is to check tire heights. An imbalance f/r can cause DSC issues.

Im trying to understand how this affects DSC...

[ECSTuning]

Going slightly wider up front (from your previous set up) while maintaining the same rear tire size should reduce understeer a bit.

[richard in NC]

Originally Posted by 335 oClock

Im trying to understand how this affects DSC...

If you increase width and change nothing else, the diameter increases resulting in less RPMs rotation speed for the fronts compared to the rears. I've read this confuses DSC, like it thinks the rears are spinning.