Date: Sun, 18 Oct 2015 07:12:45 -0700
Reply-To: Don Hanson <dhanson928@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Don Hanson <dhanson928@GMAIL.COM>
Subject: Re: Nytrogen and tires
In-Reply-To: <9037B699-D55A-4F65-A594-97C8ECEB6D1B@gmail.com>
Content-Type: text/plain; charset=UTF-8
I have extensive experience using nitrogen inflated tires. The whole
point, in my own use in tires on a road racing car, the point is to
minimize the tire pressure increase as tires get warmed (hot) on a
racetrack during the first few laps of a race...According to my notes, my
rather large (12.5" of tread width, slick and soft) gained close to 5psi
when filled with compressed air...When filled with nitrogen, the pressure
gain was only 2psi...allowing me to start races closer to the proper tire
pressure and hence NOT lose positions or crash during the first few laps as
my tires warmed up to racing temp...
The 'science' behind this is said to be mainly because bottled
nitrogen is almost 'dry' while atmosphere from a compressor contains
ambient humidity...and the internal water vapor turns to steam as the tire
gets hot...causing a rather substantial pressure increase....
Dunno about the 'science' but I do know the numbers that I have
recorded are quite valid...having kept a close record over about 6yrs of
track time and many different tracks.
I was using large cylinders like welding tanks....refillable at
welding supply houses for about $25 each and they would last me about 20
races.....You can also use the compressed gas to power air tools when away
from a plug in....
For a Vanagon?....no reason to use it...
On Sun, Oct 18, 2015 at 3:34 AM, Dennis Jowell <dennisjowell@gmail.com>
wrote:
> Same here in Orange county
>
> Dennis Jowell
> Scotch Hollow Farm
> Newbury, Vermont
>
>
> > On Oct 18, 2015, at 12:22 AM, Stephen Engel <sengel543@YAHOO.COM> wrote:
> >
> > I was sold nitrogen filled tires as part of the tire package at Costco.
> But as Max mentions, my original 14" steel wheels have rusted and pitted
> enough to lose pressure too often. Fortunately my friendly local tire shop
> will top me off with nitrogen for free. But here in Rutland County I
> experience the same temperature extremes and bad roads as you do in
> Bennington County, so from time to time I found myself in need of air away
> from home and/or after business hours. Where are you going to get nitrogen
> then? Maybe nitrogen makes sense at the race track or Jay Leno's garage,
> but in the real world, I'm going to stick with regular air.
> >
> > Steve
> > 87 Syncro
> > 14" BF Goodrich All Terrain T/A
> >
> > Sent from my iPhone
> >
> >> On Oct 17, 2015, at 5:32 PM, Eric Caron <ecaron1@COMCAST.NET> wrote:
> >>
> >> Hi folks,
> >>
> >> this time of year I have a hard time keeping my tire pressure content.
> the temperatures outside vary greatly.
> >>
> >> I recently learned that a friend has a car with Nitrogen filled
> tires. Is anyone doing this with your vanagon? Do you have any benefits
> to report? Will this help with content tire pressure and tire wear?
> >>
> >> A little reading on google gave me different opinions on the value but
> it sounded like my needs would have the most benefit from a nitrogen fill.
> that is a car that is used infrequently, has low mileage on the tires, and
> thus would like the tires to last longer.
> >>
> >> I’m not sure how expensive it is to fill this way and would like to
> hear if anyone has experience.
> >>
> >> Eric Caron
> >> 85 GL Auto Westfalia
> >> Currently at 51 PSI General Ultimax Tires
> >> on plain old air
>
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