Saliun S637 Tire Pressure

avvidclif1 wrote:

Cummins12V98 wrote:

Me Again wrote:

pjberny5 wrote:
Dumping the Tow Max tires this week and replacing all 5 with the Saliun S637s 235/85R16 (G). My question is do you run them at the Max PSI of 110.

I have a Big Horn 3260EL when loaded weights 12,600 verifed by putting her on the scale.

Would appreciate the advice of anyone else that is using this tire.

Thanks in advance

If you want to beat you trailer up, have less braking, and a bigger chance on impact damage to the new tires then go ahead and run them at 110 inflation.

You are not clear on if the 12,600 is the weight on the axles or the total weight of the trailer(GVWR is listed as 14,000). Know the weight on the axles, preferably by each wheel position, and set the air to 5 lbs more than the inflation chart says based on the heaviest wheel.

70=2765, 75=2905, 80=3042, 85=3170, 90=3300, 95=3415, 100=3550, 105=3675, 110=3750

http://www.goodyearrvtires.com/pdfs/tire-care-guide.pdf

At 110 the four tires can carry 15,000 pounds. You do not need that!

Chris

Geez you sound just like me!

I totally agree! The load charts are there for a reason. I went from E's to G's and ran 85 for several thousand miles and the tires had perfectly even tread wear.

Be very careful with your recommendations. Goodyear publishes a chart for THEIR TIRES. Ask them if it applies to other brands? I can guess the answer. If the mfg of the brand of tires you are using publishes a tire pressure vs weight chart use it. Otherwise I wouldn't be "borrowing" somebody else's. If nothing else contact the mfg of your brand of tires and ask about inflation pressures. They made them and should know.

The other problem is you have to weigh each tire to properly inflate it. Just dividing the trailer weight on the axles by 4 doesn't take into consideration the different loadings on the individual tires.

I could have quoted Saliun's chart pressures but they would be the same as GY's. It's not brand specific it's load and size specific.

If you have read any of my other posts I say it's best to weigh each tire then use that tires weight to determine air pressure for all 4 tires.

So we sorta agree!