Originally Posted by physics

I recently got a set(245/40R19-F, 275/35R19-R) on my 370Z sport coupe as replacements for the OEM Bridgestone Potenza S007 tires. The recommended inflation pressure is 32 psi square. I DD my car and don't track it, although I occasionally do some spirited canyon carving and slicing and dicing on the coastal mountain roads here in northern Cal when the weather permits. I was wondering if you had experimented with tire pressures and had found something good? When I set the pressures to 32 psi on the Michelins the car felt like it was a bowl of Jello around corners. I bumped up the cold pressure to 36 psi square and the car is handling much better. I did put some very stiff Hotchkis sway bars on the car a few months ago, which greatly improved the handling.