[Healeys] Speaking of tire Pressure

[David Leong]

The advantage of N2 is that it comes from a tank.

Air from an N2 tank is dry. Ambient air has a lot of moisture. If you could
provide regular air at 0% humidity, it would be just as good.

It is the moisture that affects the predictability of how the tires behave
with temperature, but I doubt anyone not in a racing environment would ever
notice.



Dave 


-----Original Message-----
From: Richard Ewald

Since good old air is almost 80% N2, I would venture to guess the  
thermal expansion of N2 and air are very similar.

On Dec 16, 2009, at 14:17, <pennell at cox.net> wrote:

> Larry,
>
> Does not react to T changes as much as regular air does?  React to  
> it in what way?
>
> Keith Pennell
>
> ---- bighealey3k at aim.com wrote:
>> I also recommend a digital gauge and possibly switching over to  
>> nitrogen.
>> Nitrogen doesn't react to temperature changes as much as regular  
>> air does.
>> I'm assuming your using the old "stick" type pressure gauges.
>>
>> Larry
>> '67 BJ8