Originally Posted by gljurczyk
I'm a firm believer in a system, the system that is a sponsor of your blog has had problems from people statements on this forum. With that being said, I have a digital gauge. I set my pressure from that and then read from the system I have installed. That has given me the plus or minus of the system which they claim can be Plus or Minus 1 or 2 degrees/PSI. Blow outs seem to happen no matter what precautions you take. I have been to the scales I know that I'm not over weight, I know that I have even wear I know what my cold PSI is. So what is a person to do them more then that? I do not have control over the manufacture process, so you trust the dealer and data that they supply. So why are trailer tires so much more subjectible to blowouts then TV tires. a TPMS system can not predict a sidewall blow out. To me that has to be the cord or construction of the tire itself. It will give me a pressure loss and then you still have to slow and pull off in a safe area that's where the damage occurs. So what are we to do or you recommend about that scenario.....Thanks for all your help.
I have no control on who purchases advertising on the blog I write as I do not own the blog. It is owned by RVTravel. I guess you could consider me like an employee of that company.
I see the claim of +/- 2.7% on pressure and +/- 5F on temp on the TireTraker web site. I haven't conducted tests on accuracy of various TPM systems. Are you aware of any independent tests that have been run?
By "Blowout" I will assume you are talking about Run Low Flex Failure of the sidewall and not the completely different Belt Separation. As such if you can avoid driving at highway speed after the tire has lost significant inflation you can avoid having a Run Low Flex Failure i.e. Blowout. So it follows that if you stop driving on a tire after it has lost 30 to 50% or more of inflation, then you will avoid having a sidewall Blowout.
I know of no part of the tire manufacturing process that can somehow manage to place "defective" material in a consistent circumferential line only in the upper mid sidewall. Also to my knowledge no one has been able to identify exactly what the "defect" is that is located at the site of the melting.
Melting of Polyester cord can occur no matter the size of number of cords if the sidewall is over stressed (bent) at a high rate. It does however take probably about 15 to 25 minutes for the temperature to rise to this level. This type of failure will and has occurred in all brands so again what is the exact defect.
In steel body tires we see the same circumferential line with signs of fatigue failure of the steel cords when they are run when significantly under-inflated. Are you suggesting that the same type of defect that occurs in Polyester is also occurring in steel?
The reason TT have a higher rate of sidewall flex failures than TV is twofold. First a tire loosing air on a TV provides the driver the opportunity to feel the change in ride & handling but provides no such tactical feedback if on a TT. Second is the internal structural stresses that trailer design place on TT tires that it does not experience in as high a level in TV applications. Interply Shear is about 24% higher in TT application than in TV application.
The wear seen in my example does not occur in the 1/4 to 1 mile it might take to come to a stop. It is also not possible to wear uniformly through a tire sidewall if there is no air in the tire to provide the needed support.
If the above is not sufficient I suggest you review the number of posts on Why tires fail on my Blog.