One other reason I'm told is the nitrogen molecule is larger than oxygen
and doesn't seep thru the tire material as easily, keeping the tire
inflated more consistently over time. the argument for using N2 in
passenger car tires (don't forget the Fast and Furious "cool" factor
with the green caps). I think the dry aspect is more in line with
racing.
Mike Meierle
#847 F/P/MP
SCTA-BNI/Gear Grinders/Sidewinders/ECTA
ECTA Record Holder
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net] On Behalf Of drmayf
Sent: Thursday, May 10, 2007 3:17 PM
To: Glen Barrett
Cc: Mike Cook; Mike Waters; Alan Fogaladini; landspeed@autox.team.net;
Doug Odom; Doug Anderson; Glenn Freudenberger; Bruce; Mike Manghelli;
Dan Warner; kent riches; Jack Dolan; Russ Eyres
Subject: Re: Fw: Another Granatelli story ... with available photos.
What a cool old race car. When looking at the web site, something caught
my eye and that was the N2 filled tires because with N2 they don't
expand to change to odometer reading. That seems odd to me since our
atmosphere is about 79% N2 anyway. The other major constituent is O2 and
both are about the same atomic weight and have simialr thermodynamic
properties. Is there one among us who can explain this to me? Now I
understand the use of DRY gas to fill since water vapor can and does
expand, but just gas?
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