Tire pressure and temps while towing
I was curious to know if any of you have the TPMS sensors on their trailer tires and what you have your warnings set at. Without getting into the debate of the ST/LT tire thing, I would like to know w...
Forum Discussion
To answer this question right I have to write about the ST/LT thing a little.
ST tires are calculated in their maximum load for more deflection.
This cources more heat production so warmer inside tire temperature.
But you can also give the tire a pressure a LT tire would need for the same load, so it gives lesser deflection and so lesser heat production.
This all is to set the pressure on your TMPS.
Then for colder outside temperature you need to set the lowest pressure before alarm to the pressure belonging to coldest outside temperature you asume to experiënce in your suroundings.
Then you have to set the highest pressure for alarm to the pressure belonging to boiling point of water so 100degr C/ <> 200 degr F.
This temperature the inside tire can get incidentially by severe braking. Then the heat of the brakes is transported trough the rimms to the tire inside. This can happen when descending in the mountains and using the brakes to often, and then its anoing and not good for your concentration if an alarm keeps going off.
the tire and valves can stand this higher pressure , they are tested for that and even testing standards for that.
If you give data of trailer and tires I can calculate the needed pressure and give the pressures the tires will have at coldest and at hottest, so you can set your borders to that.
ST tires are calculated in their maximum load for more deflection.
This cources more heat production so warmer inside tire temperature.
But you can also give the tire a pressure a LT tire would need for the same load, so it gives lesser deflection and so lesser heat production.
This all is to set the pressure on your TMPS.
Then for colder outside temperature you need to set the lowest pressure before alarm to the pressure belonging to coldest outside temperature you asume to experiënce in your suroundings.
Then you have to set the highest pressure for alarm to the pressure belonging to boiling point of water so 100degr C/ <> 200 degr F.
This temperature the inside tire can get incidentially by severe braking. Then the heat of the brakes is transported trough the rimms to the tire inside. This can happen when descending in the mountains and using the brakes to often, and then its anoing and not good for your concentration if an alarm keeps going off.
the tire and valves can stand this higher pressure , they are tested for that and even testing standards for that.
If you give data of trailer and tires I can calculate the needed pressure and give the pressures the tires will have at coldest and at hottest, so you can set your borders to that.
