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 > Lowering TV tire pressures

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Me Again

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Posted: 10/08/19 04:52pm Link  |  Quote  |  Print  |  Notify Moderator

Well I finally got around to lowing my rears today from 65(towing the bumper pull to Arizona) to 43, ride improved noticeably. Chris


2015 RAM 3500 CC SB SRW Our Rig New 2017 Bighorn 3575el. Commuter trailer 2019 Laredo 225MK. Retired and enjoying it!


Cummins12V98

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Posted: 10/09/19 04:50am Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

Well I finally got around to lowing my rears today from 65(towing the bumper pull to Arizona) to 43, ride improved noticeably. Chris


You left in time to avoid the SUCKY weather here now!!!


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wilber1

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Posted: 10/09/19 08:07am Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

wilber1 wrote:

Cummins12V98 wrote:

wilber1 wrote:

Cummins12V98 wrote:

" If you tailor your pressures for your actual load, you are running your tires at their maximum because that is what those tables mean. They are not recommended pressures, they are the maximum load the tire can handle at that pressure."

If you contact GY Tech they will tell you it's fine to use those numbers but to also add 5psi to what the chart dictates.


They are just giving a fudge factor in case you are out on your weights. Goodyear doesn’t know what application the tire is being used for, they are just giving maximum weights for specific pressures. Do you think NASCAR uses tire load charts or do they use the optimum pressures to give the best performance for their particular vehicle? Vehicle manufactures specify pressures that give what they consider to be the best compromise between load capacity, wear, handling, braking and ride for that particular vehicle. Not all vehicles using the same tire will use the same recommended pressures for that very reason.


Yes they do add 5psi because the load can change going down the road. Follow the chart with proper inflation based on load and the tire will wear even, better ride and stopping plain and simple.

Not sure what NASCAR has to do with the subject.


Load charts are about load, not wear. You can have two different vehicles, weighing the same using the same tires that will need very different pressures to give optimum performance because they are very different in other ways and uses. The tire manufacturer doesn’t know how the tire will be used in every case, only how much weight it can support at a given pressure.


Have you ever gotten 80, 100 and 120 out of a set of tires? The formula works! I add 10psi to the fronts because of edge wear turning and 5 to the rears.

Contact patch for best braking tread wear and ride ALL are best at proper inflation using the weight/inflation charts. I learned a lot talking to GY tech on this subject years ago.


I will add to the vehicle manufacturer’s recommended pressures if I am experiencing edge wear. The tire manufacture doesn’t know what application his tires will be used for, he just doesn’t want people to overload them.

Read what it says at the top of the chart.

Tire load limits at various cold inflation pressures used in normal highway service”

It doesn’t say anything about them being recommended pressures for your particular vehicle.


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Cummins12V98

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Posted: 10/09/19 08:10am Link  |  Quote  |  Print  |  Notify Moderator

Wilber buddy do what you want, call it what you want I explained what works and how. Oh and let's not forget I get by far better mileage and perfect tread wear than most by using the charts.

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Posted: 10/09/19 08:19am Link  |  Quote  |  Print  |  Notify Moderator

And I get many more miles outta tires because I drive more.

Me Again

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Posted: 10/09/19 08:55am Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

Me Again wrote:

Well I finally got around to lowing my rears today from 65(towing the bumper pull to Arizona) to 43, ride improved noticeably. Chris


You left in time to avoid the SUCKY weather here now!!!


Hey, we were one day ahead of snow on are first three days heading East and then South. Spokane on the 26th, Deer Lodge, Mt on the 27th and skipped Blackfoot, Id on the 28th(pushing South into Utah). Snow in those locations the next morning. 90's here. Chris

wilber1

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Posted: 10/09/19 12:45pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

Wilber buddy do what you want, call it what you want I explained what works and how. Oh and let's not forget I get by far better mileage and perfect tread wear than most by using the charts.


Your opinion only. The charts claim no such thing, they only give maximum loads for different pressures.

Me Again

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Posted: 10/09/19 01:48pm Link  |  Quote  |  Print  |  Notify Moderator

wilber1 wrote:

Cummins12V98 wrote:

Wilber buddy do what you want, call it what you want I explained what works and how. Oh and let's not forget I get by far better mileage and perfect tread wear than most by using the charts.


Your opinion only. The charts claim no such thing, they only give maximum loads for different pressures.



So you are unable to relate to one knowing the actual weight on an axle and setting the pressure is the tires a little above that weight based on the inflation chart. With your lack of logic, I maybe should be running 80 PSI in my front tires verse what the door jam says because they are the same tires all the way around! At any rate enjoy your bumpy ride, decrease braking and handling!

* This post was edited 10/09/19 04:25pm by Me Again *

97chevor

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Posted: 10/09/19 02:30pm Link  |  Quote  |  Print  |  Notify Moderator

I have ran a set at 90 psi all around just to see if I could get tires to round. Not all tires equal in radial belt strength. Those tires lasted over 180,000 miles. I do not own a Ford or RAM.....so no issues with rough ride

* This post was edited 10/09/19 03:14pm by 97chevor *

Cummins12V98

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Posted: 10/09/19 03:54pm Link  |  Quote  |  Print  |  Notify Moderator

wilber1 wrote:

Cummins12V98 wrote:

Wilber buddy do what you want, call it what you want I explained what works and how. Oh and let's not forget I get by far better mileage and perfect tread wear than most by using the charts.


Your opinion only. The charts claim no such thing, they only give maximum loads for different pressures.


I guess GY Tech Support knows nothing!

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