Reply
 
Thread Tools Display Modes
Old 10-19-2011, 11:08 PM   #1
Senior Member
 
Join Date: Oct 2010
Location: Opelika, Al
Posts: 101
Tire Pressure

Just hooked up the TT for a trip to Helen, Ga this weekend. When I checked my cold tire pressure all 4 tires where at 40 psi. The temp here has dropped to about 50. Last time I pulled the TT the temp was closure to 100. Should I add 10 pounds to get to 50 psi cold or let them warm up and see if they are 50 psi?
__________________

__________________
aujmr1970 is offline   Reply With Quote
Old 10-19-2011, 11:52 PM   #2
Senior Member
 
Join Date: Aug 2010
Posts: 855
Yes, air the tires up to the proper pressure before you leave home.
__________________

__________________
donn is offline   Reply With Quote
Old 10-20-2011, 05:41 AM   #3
Senior Member
 
cardinal4fun's Avatar
 
Join Date: Sep 2008
Location: Eastern Iowa
Posts: 314
You need to bring the psi up to correct cold reading.
__________________
3500 Ram 5.9l diesel
08 35 RLT Cardinal
5th Airborne Pin Box
cardinal4fun is offline   Reply With Quote
Old 01-12-2012, 02:34 PM   #4
Member
 
Warrior's Avatar
 
Join Date: Mar 2011
Location: SW Florida
Posts: 83
Hope this is not to far off topic. I'm not trying to high jack...
Any who. I just replaced the junk tires that came on my rig, which only had about four thousand miles on them and showed very little wear. I replaced them with Maxxis 8008 ST225/75R15 PR (E load range). My question is what pressure should I inflate the tires? I had the rig weighed last July and the trailer axle weight was 6860 lb. I have added additional weight since then and plan on having it weighed again. I know from reading other post that there are a lot of members that claim tires should be inflated (cold) to the maximum rated PSI, regardless of load. I don't know that I subscribe to that school of thought. I would like opinions on how to interpret the attached Load/Inflation Chart link. The way I interpret it is, as an example, my tires with a load of 2500 lb. should be inflated too 65 PSI. I believe this will allow the tire achieve the proper profile for proper wear. If they are over inflated, maximum rated 80 PSI, they will have a tendency to wear in the center of the tire. Am I interpreting the chart incorrectly? I have inflated the tires to 70 PSI as a starting point until I get it weighed or read or hear something to the contrary.


http://www.maxxis.com/Repository/Files/m8008load.pdf
__________________
Wayne & June Bowers Camp Mutts Bo & Baby
2011 F250 Lariat 4X4 SCSB 6.7 Power Stroke
50 Gallon Titan Fuel Tank
2011 Flagstaff 8528RLWS 5th Wheel
Reese Sidewinder Hitch 2002 Road Star Warrior
SouthWest Florida FROG
Warrior is offline   Reply With Quote
Old 01-12-2012, 03:18 PM   #5
Site Team
 
acadianbob's Avatar
 
Join Date: Mar 2008
Location: St. Paul, Minnesota
Posts: 2,914
I always run max pressure.
__________________
http://i421.photobucket.com/albums/pp297/acadianbob/IMG_2757.jpg
2012 F150 FX4 Ecoboost, 2016 Surveyor 274BHS
2003 Yamaha FJR1300, Demco Premiere Slider
1969 John Deere 1020, 1940 Ford 9N, 1948 Ford 8N
Jonsered 535, Can of WD-40, Duct Tape
Red Green coffee mugs
acadianbob is offline   Reply With Quote
Old 01-12-2012, 03:22 PM   #6
Senior Member
 
Join Date: Sep 2010
Posts: 280
My '06 truck with "e" tires came with about 50 psi in the front and 85 in the rear (3/4 ton). The rear tires wore considerably in center of tread. Since then, use 50-55 pai all around, all the time. Wayne
__________________
wayne anthony is offline   Reply With Quote
Old 01-12-2012, 04:18 PM   #7
Member
 
Warrior's Avatar
 
Join Date: Mar 2011
Location: SW Florida
Posts: 83
Quote:
Originally Posted by wayne anthony View Post
My '06 truck with "e" tires came with about 50 psi in the front and 85 in the rear (3/4 ton). The rear tires wore considerably in center of tread. Since then, use 50-55 pai all around, all the time. Wayne
Thats kind of my point. Four tires same size, same rating, different load, different pressures. Poor wear due to over inflation for load.
__________________
Wayne & June Bowers Camp Mutts Bo & Baby
2011 F250 Lariat 4X4 SCSB 6.7 Power Stroke
50 Gallon Titan Fuel Tank
2011 Flagstaff 8528RLWS 5th Wheel
Reese Sidewinder Hitch 2002 Road Star Warrior
SouthWest Florida FROG
Warrior is offline   Reply With Quote
Old 01-12-2012, 05:29 PM   #8
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,157
[QUOTE=Warrior;154321]I have inflated the tires to 70 PSI as a starting point until I get it weighed or read or hear something to the contrary.[QUOTE]

Yes sir, that is how I read it too. Filling those E's to 80 PSI will, in addition to center tread wear, result in a very bouncy hard ride for your trailer and its contents.

Weight the camper loaded for camping and hooked to your truck. check the chart for proper inflation for that wheel load and adjust the pressure as required. A few extra pounds cold will not hurt anything (as long as it is below 80 PSI cold and your rims can handle the pressure); just don't run below the charted pressure for your load weight.
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is online now   Reply With Quote
Old 01-12-2012, 06:28 PM   #9
Member
 
Warrior's Avatar
 
Join Date: Mar 2011
Location: SW Florida
Posts: 83
Thanks for the confirmation Lou, I value your opinion. You also make a very good point on the adverse effects over inflation has on ride quality.
Just to give myself a little more assurance I am going to strike a chalk line across the tread, monitoring wear trends at different pressures. Since my TPMS has the ability to measure temperature I'm also going to measure temperatures at different pressures.
__________________
Wayne & June Bowers Camp Mutts Bo & Baby
2011 F250 Lariat 4X4 SCSB 6.7 Power Stroke
50 Gallon Titan Fuel Tank
2011 Flagstaff 8528RLWS 5th Wheel
Reese Sidewinder Hitch 2002 Road Star Warrior
SouthWest Florida FROG
Warrior is offline   Reply With Quote
Old 01-12-2012, 06:35 PM   #10
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,157
PM me when you are ready with your results.
Then you can start a new thread and post your results in a table for the various pressures you tried and I will move it to the FAQ section for all to see.

I think many folks would be interested in your results. I know I am.
__________________

__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is online now   Reply With Quote
Reply

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 01:02 PM.