Actually that's not my tip. Mani Jayasinghe from Mani's site posted that on the Supra email list a few years back. If you read any of the sport/compact rags, you've probably seen his Dawg. Bright red, TRD style widebody kit, and Mani can really drive. He sponsors a major sports car event in the LA area every summer. If anyone's interested I can post more about it. Most of the cars in this event are 500+ hp though.
The pressure on the side is the max. pressure recommended by the tire maufacturer. It does not take into account the vehicle it is on...the weight and the front to rear distribution among many other things. A good baseline to start would be about the same as the stock tire psi. I have 225/40-18s.....Yokohamas and found that I run at 28 rear and 31 front. I have one less lb of pressure in each tire than stock, but front to rear difference it still 3 lbs. If you use lo bux's method...which is the way I have always heard it should be done....start with the normal stock pressure as a base so you will not be starting too far off.
