TV tire pressure |
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IL-Podders
Groupie Joined: 03 Feb 2015 Location: Mokena, IL Online Status: Offline Posts: 67 |
Topic: TV tire pressure Posted: 07 Mar 2015 at 10:57am |
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When starting on a trip that will put me on the road for several long days of driving, I start with a few pounds lower than the max. I have found that during the summer, you get those pounds back as the temp goes up. Gas laws.
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Marv-N-Kathy
2015 179 RPod 2016 Chevy Tahoe |
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Luv2Q
Senior Member Joined: 30 Aug 2014 Location: Central TX Online Status: Offline Posts: 309 |
Posted: 07 Mar 2015 at 12:08pm | |
IIRC, tire pressures are spec'd when cold. Which suggests that expansion due to heat buildup from driving is engineered in.
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John & Teri
Tundra 5.7L V8 / RP 180 E2 WDH / Integrated controller (POS) replaced by Tekonsha P3 |
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ToolmanJohn
Senior Member Joined: 23 Apr 2014 Location: Connecticut Online Status: Offline Posts: 451 |
Posted: 07 Mar 2015 at 4:50pm | |
+1... Cold pressure is the way to measure. It is anticipated the pressure will rise when they heat up, and the tire makers and vehicle builders plan accordingly.
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2017 ATC 7X20 Custom Toy Hauler
2013 R-Pod 177 (SOLD) 2013 VW Touareg TDI |
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dsmiths
Senior Member Joined: 10 Oct 2011 Location: Southern Ind Online Status: Offline Posts: 866 |
Posted: 07 Mar 2015 at 8:05pm | |
Open the drivers door on you t.v. and there is a label with the recommended pressures for your vehicle, I use R Pod recommended pressure on the Pod.
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Dane and Donna Smith
2011 RP-172 2008 Chevrolet Trailblazer 4X4 lift kit prodigy wireless brake controller |
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hogone
Senior Member Joined: 09 Apr 2013 Location: St. Louis Online Status: Offline Posts: 1049 |
Posted: 08 Mar 2015 at 9:19am | |
i run tire pressure recommended on the tire, not the door. its a 20 pound difference. hogone
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Jon & Pam
2013 RP177 2010 F150 2017 HD Streetglide 2009 HD Lowrider CHEESEHEAD |
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Tars Tarkas
Senior Member Joined: 14 Jan 2013 Location: Near Nashville Online Status: Offline Posts: 1447 |
Posted: 08 Mar 2015 at 9:55am | |
From the Car Talk web site:
"How do you determine the correct tire pressure for your car's tires? "A lot of people check the pressure listed on the tires themselves, but that's actually the wrong place to look. The number on the tire is the maximum allowable air pressure — not the recommended pressure for that tire when used on your vehicle. "The recommended tire pressure is almost always lower than the maximum tire pressure. Check your owner's manual to find out where to look on your vehicle to find the recommended measurement. This number usually is indicated either on the driver's door pillar, the glove compartment door or sometimes on the gas filler door." Tire manufacturers' web sites make the same recommendations.Also from Click & Clack, "Car Talk Tip: Check your tire pressure even if your tires look fine. Radial tires can be deceiving (they're sneaky little guys). They may look fine even when they're down 10 pounds of air — or overinflated by 10 pounds. So don't trust your eyes — use your gauge." TT |
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2010 176
FJ Cruiser |
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techntrek
Admin Group - pHp Joined: 29 Jul 2009 Location: MD Online Status: Offline Posts: 9062 |
Posted: 08 Mar 2015 at 3:13pm | |
Tires are rated to their maximum carrying capacity when they are at their maximum rated tire pressure. The rating on the door pillar sticker is the one the manufacturer recommends for the best passenger ride balanced against mpg and driving performance. Basically, they need to ensure people don't complain about a harsh ride but they need to boost their fleet mpg rating as much as possible, too. It is not the correct pressure for towing, when you want the least sidewall flex to prevent trailer sway and you are loading the tires much closer to their individual capacity. Just because the pod's static tongue weight is ~300 pounds that is not the dynamic load it applies to the TV going down the road as it hits bumps, it can be several times that.
These same reasons are why a trailer's tires also need to be at their max rating - they are often loaded to the edge of their weight rating by the camper's design, and you don't want them to flex which will amplify sway.
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Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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john in idaho
Senior Member Joined: 04 Nov 2014 Location: Eagle Idaho Online Status: Offline Posts: 611 |
Posted: 08 Mar 2015 at 8:09pm | |
Now, that makes sense. Now that you mention it, I knew that but I somehow disremembered that. I used to pull a 11000 pound horse trailer, and one needed all the air pressure that would fit to cut down on sway if a horse started moving. I had one mare that absolutely would not tie in a trailer and had to be loose.
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