Tire pressures
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Tire pressures
What tire pressures is everyone running? I found the page in the chassis manual and according to it I should be able to run 80 psi in all six tires with no problem with load capacity. I have been 100 psi and it has been beating the hell out of us going down the road.
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Re: Tire pressures
Here's a tire inflation chart that I found on the internet... 19.5 tires are on the 2nd page down.\nhttp://www.goodyearrvtires.com/pdfs/rv_inflation.pdf\n\nWhen I had 225/70-19.5's I was running 95psi and it rode very rough. I was just going by the sidewall numbers. Since then I did some research and found that tires can support a certain amount of given weight for a certain amount of given air pressure. \nI have since put on the correct size 8R19.5's (taller and skinnier). Their sidewalls have a max of 110psi printed on them but I actually run them at 80psi in the rear and 85psi in the front for a very nice ride. This is well within their carrying capacity for my 270's weight according to the above tire inflation chart. Construction and specs being the same of course.
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Re: Tire pressures
Good to know. I was using the tire chart in the Dodge Motor home Chassis manual and as far as I could see 80 was well within the load limits.
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Re: Tire pressures
Running 19.5 rims. Fronts at 85 psi rears at 90 psi.
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Re: Tire pressures
\nWhat size tires are you running? Try 80 in the rears... you might be surprised how much smoother it rides. I may try 75 in the rear and 80 in the front next.highwaystar wrote:Running 19.5 rims. Fronts at 85 psi rears at 90 psi.