Tire pressure discrepancy
02-22-2011, 10:50 AM
#12
Tire-pressure advice is all about load and speed.
So if you are able to weigh the seperate wheels, you can calculate the pressure needed.
I once got hold of the system the European Tyre-manufacturers use to determine the advice pressures for cars, and worked it out.Learned myself Excell to make speadsheets for it.
This system gives a minimum pressure for the load and speed, at wich the tires dont get damaged, and then especialy the sidewalls of the tires. By filling in a load wich is always higher then the load in the conditions you use , it gives a savety -factor.
You can look on my skydrive of hotmail.com adress with the username jadatis, where persons can get my Email adress from, and spamm robots dont. But you can also contact me here on this topic or forum for information.
http://cid-a526e0eee092e6dc.office.l...e.aspx/.Public
Between the Dutch maps there are also English and an article of J.C Daws about a new beter way of calculating and comparison with the old system.
But I myself introduced the Load-percentage, wich you can use to get a pressure , so you dont have to adjust everythime you change the load.
It is the percentage that the real weight on the wheel is of the weight you calculate the pressure for.
If you take care that this Load% is between 85% and 100% you have a comfortable ride wich is save for the tires.
This you can use for normal advice, and then for heavy loads, wich most dont use often, you pump it up for savety.
So if you are able to weigh the seperate wheels, you can calculate the pressure needed.
I once got hold of the system the European Tyre-manufacturers use to determine the advice pressures for cars, and worked it out.Learned myself Excell to make speadsheets for it.
This system gives a minimum pressure for the load and speed, at wich the tires dont get damaged, and then especialy the sidewalls of the tires. By filling in a load wich is always higher then the load in the conditions you use , it gives a savety -factor.
You can look on my skydrive of hotmail.com adress with the username jadatis, where persons can get my Email adress from, and spamm robots dont. But you can also contact me here on this topic or forum for information.
http://cid-a526e0eee092e6dc.office.l...e.aspx/.Public
Between the Dutch maps there are also English and an article of J.C Daws about a new beter way of calculating and comparison with the old system.
But I myself introduced the Load-percentage, wich you can use to get a pressure , so you dont have to adjust everythime you change the load.
It is the percentage that the real weight on the wheel is of the weight you calculate the pressure for.
If you take care that this Load% is between 85% and 100% you have a comfortable ride wich is save for the tires.
This you can use for normal advice, and then for heavy loads, wich most dont use often, you pump it up for savety.
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