To clear things up, if I don't really care about comfortable ride and prefer better performance, what setting is recommended????

 

I guess the main point some of us is making is that the "optimum" tire pressure depends on use of the car. I try to optimize by keeping the operating pressure around 36-37 psi on the street. Which normally means about 32-34 psi cold depending on the season (i'm in New England).

 

Now I increased the cold temperature to 36/35 from 34/33 or 32/32, the ride is significantly different.

1. Understeer increased by a noticeable amount.

2. Tire wear? Well, my tires had a lot of bubbles from track day at Summit point; they all disappeared in a day or 2 after I increased the tire pressure. But I thought lower pressure increases tire wear .....

3. BY keeping the car in a higher RPM, its not as easy to guide the car in-out the corners.

Now: Nose in - understeers, throttle - get the tail out a bit to compensate. This is fun but very different from what the old pressure setting did to the handling, it was more of "point and shoot" with little room for correction unless the engine is in a higher power curve.

Just my findings ...