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jobah jobah is offline
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Join Date: Feb 2009
Posts: 11
I autocrossed today and tried different pressures to get some thoughts on what works the best in my 930.

Based on recommendations from a couple of old 911/930 guys, I tried 29/44; 29/38; 27/34 and 27/32. The final setup was the best as far as traction and adhesion to the road.

I HATED 29/44 - felt like I had NO traction in the corners when things heated up. I actually spun out on a corner that I have been through dozens of times before - at a relatively slow speed.

Once I got below 29/38 everything fell into place. the final steup was the best, but 27/34 was also pretty good.

Btw, i'm running the sumi's on stock fuchs. It may be that as tire tech has changed, the original recommendations are no longer all that applicable.
1989 930 black/black 50.5kmi stock
1987 911 targa black/black
1988 911 coupe black/black
1982 911SC coupe black/black
Old 05-14-2009, 05:10 PM
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