Date: Sun, 31 Jul 2005 11:51:04 -0600
Reply-To: jimt <camper@TACTICAL-BUS.INFO>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: jimt <camper@TACTICAL-BUS.INFO>
Subject: Re: Tire pressure question 2
In-Reply-To: <20050731132718.25184.qmail@web34211.mail.mud.yahoo.com>
Content-type: text/plain; charset="US-ASCII"
Many mfr post load tables for their load rated tires. However I just
finished about three days of digging on the web for the most common tires we
use and found no tables. All the tables start just above our vehicles and
do not really relate to us at all.
However by using those tables, notes contained in them and then noting the
relationships on them I came up with this.
If running a base vanagon use the card. If you are running a camper the
card is still good but would recommend 3psi increase front and rear. If
your van is like mine and routinely weighs in at 4600 then add 5psi to the
front and rear. These numbers that I am using are based on normal drive
with about 300 lbs of extra load for cargo being added from time to time.
Note also that these numbers are assuming that the weight increase will be
to the middle of the vehicle and not over one axle or the other.
With my van I did the add of 5 psi about three months ago after noting
strange tire wear on the front that suggested under inflation as well as
some strange handling. The handling corrected and the wear pattern has
halted. Nice to see that I now have some support for the number I guessed
at. The guesstimate part was done by first inflating to 3 psi greater and
looking at the contact patch area and sidewall bulge on one front tire. I
then added 2psi more and the tire shape looked much better and I then
matched the pressure on the other three tires and checked appearance and
then test drove on the highway.
With any changes in tire pressure look for changes in wear patterns on the
front tires. This is where it will show most and soonest.
Jimt
On 7/31/05 7:27 AM, "Barb Cotton" <cottonscrafts@YAHOO.COM> wrote:
> OK, maybe I should have been a little more specific on what I was asking. I
> have received replies telling me to look on the door jamb which doesn't answer
> my questions at all because these tires were not original equipment. I KNOW
> what the range is, my question was for people who have actually used these
> tires- how much pressure do you normally run as a daily driver??? How much
> when loaded for camping??? I know there is a difference depending on load. Do
> you go with 45 on a daily basis, 60 when loaded? Thanks.
>
>
> Barb
> 83 Westy
>
> Never regret.
> If it's good, it's wonderful.
> If it's bad, it's experience.
> Victoria Holt
>
> ---------------------------------
> Start your day with Yahoo! - make it your home page
>
>
