Proper Tire Pressure...
I am changing all my tires on out 5ver from STs to LTs. I have looked for an answer to my question but to no avail, so I will try here, you have all been helpful in the past. I'm going to put 80l...
Forum Discussion
Ok then thats solved .
but the difference in maximum load between the old ST and the new LT with almost same sises and that 80 psi the same wont give substantial difference in livetime and does not bring the chanche on blowouts back to zero.
In fact they are almost the same when you calculate it back to the same speed
ST Vr( velocity reference- is speed for wich the maximum load is calculated) is for the ST 65m/104km/h and for the LT probably N speedrated is 140km/83m/h.
If you calculate that back to the same speed of N speedrated the ST has 4 LI steps lower to my estimations in my topic.
Best would be to give the LT tire a bit higher pressure for absolute savety , Calculated it with my spreadsheet treating it as for 99m/h and dual load for absulute savety to need 86 psi real cold pressure ( measured with calcibrated device can stil give 5% higher reading.
To my opinion the LT here has only slighty more savety then the old ST of 235/80/16 .
Calculated with LI of 115-2679lbs and GVWR of 2*5200+10% hichweight.
Then your weighed 1820 hichweigt proves to be about 18% wich is over the 15% that is allowed.
So thats more then the 10100 you weighed , but was it weighed fully loaded.
Then weightdifference possibel right left of 1145 lbs before damage or bumping . This seems a lot but can even happen for 5th wheelers.
I have read of someone who weighed seperate wheels of 400 lbs per axle and even crossed weight difference between the axles.
but the difference in maximum load between the old ST and the new LT with almost same sises and that 80 psi the same wont give substantial difference in livetime and does not bring the chanche on blowouts back to zero.
In fact they are almost the same when you calculate it back to the same speed
ST Vr( velocity reference- is speed for wich the maximum load is calculated) is for the ST 65m/104km/h and for the LT probably N speedrated is 140km/83m/h.
If you calculate that back to the same speed of N speedrated the ST has 4 LI steps lower to my estimations in my topic.
Best would be to give the LT tire a bit higher pressure for absolute savety , Calculated it with my spreadsheet treating it as for 99m/h and dual load for absulute savety to need 86 psi real cold pressure ( measured with calcibrated device can stil give 5% higher reading.
To my opinion the LT here has only slighty more savety then the old ST of 235/80/16 .
Calculated with LI of 115-2679lbs and GVWR of 2*5200+10% hichweight.
Then your weighed 1820 hichweigt proves to be about 18% wich is over the 15% that is allowed.
So thats more then the 10100 you weighed , but was it weighed fully loaded.
Then weightdifference possibel right left of 1145 lbs before damage or bumping . This seems a lot but can even happen for 5th wheelers.
I have read of someone who weighed seperate wheels of 400 lbs per axle and even crossed weight difference between the axles.
