Figuring the correct tire pressure
Recently had our coach weighed. We are at 6,700 lbs (3350 per tire) front and 12,180 lbs (3350 per tire) rear when fully loaded. Tires are Goodyear G670. Using the tire pressure chart from Goodyear it...
Forum Discussion
At the 80psi inflation you are able to handle more weight than what the axle actually has. What you don't know is if the weight on the curb side is the same as the street side. The best route is to weight each corner and use the heaviest weight for each side of the axle as the weight for both tires on that axle.
Since you don't know the actual 4 corner weight your estimate is better in having more weight carrying capacity that the actual average. In other words 7280 for the front axle and 13660 for the rear axle. This does give you a little margin for some error in calculation.
Less pressure will, or should, give you a little better ride but you don't want to go too low until you know the heaviest corner and end up under the recommended pressure.
Since you don't know the actual 4 corner weight your estimate is better in having more weight carrying capacity that the actual average. In other words 7280 for the front axle and 13660 for the rear axle. This does give you a little margin for some error in calculation.
Less pressure will, or should, give you a little better ride but you don't want to go too low until you know the heaviest corner and end up under the recommended pressure.
