PS2 Tire Preasure

[Jasone]

Does anyone know the optimum track tire preasure for the PS2s ??

 

[Racer Robbie]

See this link under the tire forum below:

http://forums.viperclub.org/showthread.php?t=601323

 

[Jasone]

Had a long talk to JonB about this. WAY too many variables (car, track, alignment) to provide a general answer on a thread like this.

 

[mjorgensen Woodhouse]

You want to see a 10% rise in pressures from the cold pressure when you come in from a session. You should also be looking for an even increase front and rear. This will tell you which end is working more or less. As you stagger the pressures you will also changethe handling of the car. This is a great way to "tune" the car for a particular track or condition.

People have the thinking that you need to run very low pressures at the track to get the most from the tires. This is not always true, you need to determain the pressure rise to optimize traction. By checking the tire temps also you can check if pressures are right. The only problem you have is this should be checked right after a longish corner to get a true reading. If you track out or drive down a straight the tires will cool enought on the outer edges that the readings will mean nothing and adjusting by them will only confuse the driver more.

Mark Jorgensen

 

[Viper X]

After 3 days and 10 sessions at Buttonwillow in February on PS2's in a 06 SRTC, I'd start at 32 - 34 psi cold and look for about 38 - 40 psi warm. This pretty much follows Mark's recommendation above.

The side walls seem a bit soft on the PS2's and they tended to roll under a bit with lower inflation pressures. It was very warm that weekend, 85 to 90 degrees F and Buttonwillow is a rather slow, twisty track.

Hope this helps get you to a starting point. Adjust from there.

Dan