|
Interesting. Your last paragraph makes sense to me. Still, tires behave very differently at high temps than at low temps - I wouldn't go overboard with extrapolations. Also, I don't own any cars capable of reaching the rated speed of their tires, nor do I have a road where I can drive that fast anyway.
You might do better to estimate or look up the temperature of the air in a tire driven at its speed rating, and at your new, personal, lower speed rating. You can apply the ideal gas approximation that tire pressure is proportional to absolute temperature (in Kelvins or Rankine). This is often oversimplified as one psi per ten Fahrenheits.
|