First auto-x next sat. Tire pressure questions

[mgold]

white sidewalk chalk also works well (and comes off easy). I was told that you want a little bit of the chalk (1/2 or less) to wear off the side of the tread, any more than that is not enough air pressure.

[nando]

I use chalk, it's easy and works great. washes off in the rain too. :)

[brodee]

Actually, in auto-x you want high tire pressures to keep the sidewalls from rolling. I usually start off with 40f/40r cold. After the first heat I check again and adjust them.

Bring some shoe polish and use that to check how far your tires are rolling. If they roll too much, add pressure.

Also, if you understeer, increase front tire pressure or lower rear tire pressure. If you oversteer, increase rear tire pressure or decrease front. This seems completely opposite to what you would think, but it works.

This is exactly what I found out. It seems like it would be the other way around but more air in the front helps reduce understeer.

Shoe polish works great, some tires like my azenis even have a little indented arrow on them that points to the line where your rub should stop.

I start the day with 40f and 38r. Start high and reduce as you go.

[cgregory]

results??