Reply
 
Thread Tools Display Modes
Old 08-05-2015, 11:59 AM   #1
Junior Member
 
Join Date: Sep 2012
Location: arizona
Posts: 20
Exclamation how to set tire pressure when ambient is 115 degrees

We live in Arizona and are continuously hit with triple-digit temperatures for about 5 or 6 months of a year, with nights often not getting down to even 90 degrees.
How would you recommend getting an accurate reading and setting the tire pressures on our 21fbrs TT? If the outdoor air temp is high, it just adds to the pressure within the tire. The other day, our TV, which I normally maintain at about 36 psi, read about 44 all around. If I adjust it downward, then it seems to me like if the air temp dropped from 110, say, to 94 degrees or lower, wouldn't the tires be underinflated?
Do hope you guys have some good suggestions.
Thanks!
__________________

__________________
Wanderers thru Wonders
Flagstaff 21FBRS led by F150 5.4
Sun & Moon, direct us...
don1 is offline   Reply With Quote
Old 08-05-2015, 12:09 PM   #2
Senior Member
 
DocsDad's Avatar
 
Join Date: Sep 2014
Location: SW Michigan
Posts: 225
For every 10 deg increase in ambient temp you will get about 1 psi increase. No big deal and all in the design specs. Obviously, driving also increases pressure

Set the recommended pressure in the morning even if it is 90 deg (cold pressure), before driving and before the sun beats on one or more tires as it will increase the pressure on those tires. You will have variances throughout the day and week and that is to be expected.

Expect to check pressures more often as winter approaches and temps drop (10 deg = 1 psi)

__________________

__________________
2016 Forest River Sunseeker 3100SS
DocsDad is offline   Reply With Quote
Old 08-05-2015, 12:28 PM   #3
William
 
WEMig's Avatar
 
Join Date: Jan 2012
Location: South Louisiana
Posts: 560
How does the heat from the road affect tire pressure under these conditions? I've had 2 tire failures under these conditions over the last 2 summers..
__________________
2012 Crusader 320RLT
2011 F250 Lariat 6.7L
2016 (19 Nights Camped/1348 Miles)
2015 (38 Nights Camped/3560 Miles)
2014 (28 Nights Camped/1980 Miles)
2013 (30 Nights Camped/1411 Miles)
WEMig is offline   Reply With Quote
Old 08-05-2015, 12:34 PM   #4
Senior Member
 
DocsDad's Avatar
 
Join Date: Sep 2014
Location: SW Michigan
Posts: 225
Here's some good info

http://www.tirerack.com/tires/tirete....jsp?techid=73
__________________
2016 Forest River Sunseeker 3100SS
DocsDad is offline   Reply With Quote
Old 08-05-2015, 01:12 PM   #5
Senior Member
 
wnelsonfl's Avatar
 
Join Date: Jan 2014
Location: Mount Dora FL
Posts: 146
don't go by the charts

I also have FBRS. Just finished a 13,000 mile trip. Stock tires have 20,000 miles. I recommend 45 psi cold morning. After a few miles they will be 55 to 60 in the summer. Raise pressure to 50 cold in the winter. This worked for me.for the past 2 years
__________________
wnelsonfl is offline   Reply With Quote
Old 08-05-2015, 01:18 PM   #6
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,337
My tv tires are set @ 80 psi on the rear ,
Coming home from the nashville rally they hung out @ 95 psi

With tire cold set the pressure to sidewall speck and go.


TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "24 nights"
__________________
TURBS is offline   Reply With Quote
Old 08-05-2015, 01:36 PM   #7
Senior Member
 
mike.t's Avatar
 
Join Date: Sep 2014
Location: Norcal
Posts: 2,005
??
__________________
2015 Salem 27RKSS
2015 Ram 2500 CC 4x4 Cummins
55' Chevy Bel-Air
Burgers on the BBQ and a cold beer
mike.t is offline   Reply With Quote
Old 08-05-2015, 06:02 PM   #8
Senior Member
 
Join Date: Sep 2010
Posts: 1,702
I put 65 in mine at 80 degrees when I left Phoenix a few weeks ago. When I got to Yellowstone I added about 3 lbs each. As long as your tires are not overloaded a few lbs low is not going to matter for a short period of time.


2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
__________________

2011 Flagstaff 831FKBSS
2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
lbrjet is offline   Reply With Quote
Old 08-05-2015, 09:27 PM   #9
Junior Member
 
Join Date: Jun 2013
Location: central pa
Posts: 12
I have nitrogen in my tires on my vengeance since it was new. This summer my tire shop pumped out the old and put back the new kinda a recycled thing. They tell me the tire press maintains a pressure that is more stable and does heat up the way air does. Seems to make sense my tires never are hot while I'm traveling!
__________________
rebryson is offline   Reply With Quote
Old 08-05-2015, 09:56 PM   #10
Senior Member
 
Join Date: May 2015
Posts: 484
Everything I've ever read consistently states to inflate to the required (or max psi) in the AM with no regard for ambient temps, because tires are manufactured to be safe thru large temperature swings. It sort of makes sense because you could, for example, set your PSI at 6am at 30 degrees and end the day in a desert at 120 degrees without changing your PSI.
__________________

__________________
phillyg is offline   Reply With Quote
Reply

Tags
pressure, tire

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:14 AM.