The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
Whoa...those tire pressures seem high... (archive)
[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]
Posted by Young on March 19, 2001 at 01:38:25:

In Reply to: Jim in Oregon and other "trackies" ... posted by JawKnee on March 18, 2001 at 23:15:30:

I have a 330i and I run 31 or 32 PSI (cold) all around with my Kumhos (17x8) or 34 (cold) all around with my street tires (S02 Pole Positions) when I track the car. If I have more than 33 pounds in my Kumhos, I'm riding on the center of the tread by the end of a 30-minute session (i.e., they're overinflated and the traction is gone). You want to be in the "sweet spot" of your tires when they're _hot_. For me that sweet spot is around 40 PSI, so I'd start them at least 4-5 pounds lower. I'm not an expert though and I may be wrong on this, but I know what does and doesn't work for my car and my driving.

Also, as someone else suggested, since this is your first track event, I'd dial in some understeer. I've done 16 track days (all in the last five months and all in my 330i) and I try for neutral steer and am not even thinking of dialing in oversteer for the forseeable future.



Follow Ups:


[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2009 Jump Internet Inc. All rights reserved.