03-03-2018, 09:36 PM
Congratulations for getting tires weights by axle. That is more information than most get. However, I doubt that the weight is evenly balanced side to side for each axle. On my coach, which is admittedly lighter than yours, Newell recommended 120 psi front, 110 psi drives, 100 psi tags with 11R24.5 tires. Mine also has a GAWR of 23,000 for the drive and 10,000 for the tag. I have had mine weighed by tire position both by Newell on several occasions and by an individual in Kerrville that came to my site with 6 scales and both found side to side variances ranging from 1,100 to 1,400 pounds on the drivers and 100 to 350 pounds on the tag. The drivers side is the heavier side on my non-slide coach, likely because the washer/dryer, refrigerator, pantry and kitchen are all on the drivers side of the coach.
It is recommended to try to get weights by tire position and then set all the tires on an axle for the heaviest weight. In my case that would be 120 psi front, 110 psi drive (115 for one weighing), and 70 psi on the tag. By habit, I still run Newells recommended 120, 110, 100 although I may drop the tag tire pressure down to 85 or 90 to see if it makes any difference in the ride.
Based on the numbers you presented, I would add a safety factor of at least 5 psi per tire to compensate for side to side weight imbalance but that is just me.
It is recommended to try to get weights by tire position and then set all the tires on an axle for the heaviest weight. In my case that would be 120 psi front, 110 psi drive (115 for one weighing), and 70 psi on the tag. By habit, I still run Newells recommended 120, 110, 100 although I may drop the tag tire pressure down to 85 or 90 to see if it makes any difference in the ride.
Based on the numbers you presented, I would add a safety factor of at least 5 psi per tire to compensate for side to side weight imbalance but that is just me.