O.K. I guess the question is clear (Title) and off course I mean on pavement for normal driving and just in case if someone is asking, let’s say we’re talking about BF Goodrich all terrain tires. Don’t be too quick to answer, I’m asking because as I was reading on curing the death wobble problem on kevinsoffroad site ( http://www.kevinsoffroad.com/techarticles/deathwobble.html ) , he mentioned sometime about tire inflation. Here is a quote:
“Another source of Death Wobble is over-inflated tires (you should have around 30psi in stock tires and far less the larger your tires are. See Boyle's Law and consider how much more volume of air you have in your 33" tires compared to stock. I run around 18psi in my 37" tires). “
I must have been sick the day they covered Boyles’ law in school. Or maybe sleeping in class:speepin: . Anyway, the law simply says that as volume increases (Tire size in this case), pressure can decrease, given everything else staying the same.
So, back to the question, given that the original XJ tires are either 225/75-15 or 215/75-15 and their recommended pressure is 33 psi, what would be the correct tire pressure for the 31x10.5 (Or the close equivalent 275/70-R16)?
Note: Assume vehicle weight is stock.
“Another source of Death Wobble is over-inflated tires (you should have around 30psi in stock tires and far less the larger your tires are. See Boyle's Law and consider how much more volume of air you have in your 33" tires compared to stock. I run around 18psi in my 37" tires). “
I must have been sick the day they covered Boyles’ law in school. Or maybe sleeping in class:speepin: . Anyway, the law simply says that as volume increases (Tire size in this case), pressure can decrease, given everything else staying the same.
So, back to the question, given that the original XJ tires are either 225/75-15 or 215/75-15 and their recommended pressure is 33 psi, what would be the correct tire pressure for the 31x10.5 (Or the close equivalent 275/70-R16)?
Note: Assume vehicle weight is stock.