Do anyone run different model tires between the front and the rear? Since our cars are FF and the front wheels take all the load while accelerating and most of the load when braking I would think the rear tires wouldn't matter (for lack of a better word) as much.

My thoughts were to run Azenis up front and Ziex512 in the rear for autox. Or should I always run the same tires f&r? Advice?
I am thinking of picking up a pair of dedicate racing rims which is why I ask.

BTW, thire size will be 205/50/15
my spring rates are 7/5kg/mm
Running a 22mm hollow fsb and 20mm solid adjustable rsb

 

Wrong. You wouldn't want to do that, the car would oversteer like crazy, and you'd end up with no grip.

Same tires all the way around.

 

...not for autocross, but it might work actually work better in autoX.

For road racing / HPDE, I'd stay away from it. Different rubber has
different operating temps and they go away diffrently too. Its just
way more realtime changing variables for the driver to tackle.

The rears do some work (~33% of the weight) I'd advocate tire stagger with
the same tire compounds instead.

 

Bernardo Martinez has won the SCCA ITA regional championship the last two years in a row out here. He runs one size larger in front than rear for every local track anound here except for Willow Springs. I was curious about his thoery behind it, and so I asked him once why he did it. "Because its fast," was his response.

Good enough for me.

 

I hear you guys, I might end up opting for the Azenis RT615 on all 4 wheels when it come out instead.

Also thinking about staggering the width, 225/50/15F 205/50/15R (the fronts would be slightly taller too, i kno)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jspexae102 &raquo;</TD></TR><TR><TD CLASS="quote">Also thinking about staggering the width, 225/50/15F 205/50/15R (the fronts would be slightly taller too, i kno)</TD></TR></TABLE>

225/50/15 = 23.86" tall
205/50/15 = 23.07" tall