terrellw
Junior Member
Forgive me if this has been answered. I did search.
I would like to have some advice on my logic for tire pressure to make the ride in my 2016 2500 more comfortable.
All my estimates are printed or a little on high side to be safe.
Tires are stock Firestone LT275/70R18
EVIC I believe wants 80 psi in back and 65 in front. Tires are 80 max
For daily travel -
Curb weight unloaded is 6800 lbs, plus ~400 for passengers
I will use for front 4200 (max) /2 (2 tires)=2100 per tire
for back 3200 + 1000 (occasional payload max for me)=4200/2=2100 per tire.
Is the next step as simple as checking the firestone chart online for the tire and looking at the column for "single?" (http://commercial.firestone.com/con...015/FS_TBR_load-inflation-tables_web_2014.pdf)
If so, it recommends 45 psi for 2470 lbs. I do not know at the top of the cart what "Tires mounted on 5-degree drop center rims means." I assume that is what I would have with a stock setup.
45 psi seems low, so I would be fine I think around 55-60 psi on each. I know the EVIC will not be happy, but I can still see what they are on the screen to "manually" check pressure.
I do occasionally tow a travel trailer that would max out around 6500 lbs.
Tongue weight is around 600 lbs, but I do have weight distribution hooked up, so I must be less than 600 tongue weight. I was thinking I could use the same logic as above, except where I added 1000 lbs payload estimate, I could add 2000 (600 tongue weight and 1400 payload). Not sure I would even be that heavy.
3200 + 2000=5200/2=2600 per tire. That would put me more around 50 psi recommended on the chart. Again if I stayed in the 55-60 range I would be safe.
OK - Please tell me what I missed or messed up. I threw this all together with no experience or previous knowledge, just charts and numbers that I tried to pull together. Would be nice if Ram had a chart, but I assume that is a liability issue.
I would like to have some advice on my logic for tire pressure to make the ride in my 2016 2500 more comfortable.
All my estimates are printed or a little on high side to be safe.
Tires are stock Firestone LT275/70R18
EVIC I believe wants 80 psi in back and 65 in front. Tires are 80 max
For daily travel -
Curb weight unloaded is 6800 lbs, plus ~400 for passengers
I will use for front 4200 (max) /2 (2 tires)=2100 per tire
for back 3200 + 1000 (occasional payload max for me)=4200/2=2100 per tire.
Is the next step as simple as checking the firestone chart online for the tire and looking at the column for "single?" (http://commercial.firestone.com/con...015/FS_TBR_load-inflation-tables_web_2014.pdf)
If so, it recommends 45 psi for 2470 lbs. I do not know at the top of the cart what "Tires mounted on 5-degree drop center rims means." I assume that is what I would have with a stock setup.
45 psi seems low, so I would be fine I think around 55-60 psi on each. I know the EVIC will not be happy, but I can still see what they are on the screen to "manually" check pressure.
I do occasionally tow a travel trailer that would max out around 6500 lbs.
Tongue weight is around 600 lbs, but I do have weight distribution hooked up, so I must be less than 600 tongue weight. I was thinking I could use the same logic as above, except where I added 1000 lbs payload estimate, I could add 2000 (600 tongue weight and 1400 payload). Not sure I would even be that heavy.
3200 + 2000=5200/2=2600 per tire. That would put me more around 50 psi recommended on the chart. Again if I stayed in the 55-60 range I would be safe.
OK - Please tell me what I missed or messed up. I threw this all together with no experience or previous knowledge, just charts and numbers that I tried to pull together. Would be nice if Ram had a chart, but I assume that is a liability issue.
