Abo

Norman Wells wrote:
> Abo wrote:
>> Norman Wells wrote:
>>> Abo wrote:
>>>> Peter Hill wrote:
>>>>
>>>>> So so wrong. Motorsport quackery
>>>>
>>>> It's a tyre pressure thing. When you run for a few laps the tyre
>>>> pressure changes as the heat builds up. When you fill with air this
>>>> change can be unpredictable as the proportion of water vapour in the
>>>> air can vary. Filling with nitrogen mans you know you have a dry gas
>>>> inside your tyres and you can predict how the tyre pressures are
>>>> going to change as they heat up.
>>>
>>> I have seldom read a more unknowledgeable account than this. Water
>>> vapour has nothing whatever to do with tyre pressures, and nitrogen
>>> is just as likely to contain water vapour as air is anyway.
>>
>> Sorry you clearly know more about oval racing than I do. Please
>> explain to me why 48 or so NASCAR teams go to the bother of
>> completely removing all the air from 2880 tyres and replacing it with
>> nitrogen if it has no benefit whatsoever on the tyre pressure...
>
> Since it doesn't, I can't.
>
> Ask them.

See that response below from Roger; it would appear that it does

--
Abo