[Vwdiesel] Tire pressure

[gary]

I agree the radial has been around a while, and also, the materials 
haven't really changed since day one, but the methods and processes by 
which everything is brought together has changed significantly.

-Gary



Doyt W. Echelberger wrote:
> That was one of the most meaningful and useful tire posts I have ever read. 
> Thank you so much for the clear and concise presentation.
> 
> It moves directly into my keeper file.....
> 
> Doyt Echelberger
>  >>>>>>>>>>>>>>>
> At 05:52 PM 4/14/2006, you wrote:
>> Not really, Let me clarify something.
>> The tire pressure dictates the spring rate of the tire, and what the
>> suspension was designed to work with.
>> The tire is a big spring, and putting more or less air in it varies the
>> spring rate.  It works in conjunction with the suspension springs that
>> were selected by the manufacturer, but changing tire pressures mostly
>> changes spring rate on that wheel, since radial tires are designed to
>> not change shape under pressure changes within a reasonable level.
>>
>> 99% of what you change with air pressure is ride comfort, and how well
>> the suspension sucks up the little bumps- because the tire is a
>> suspension component.
>>
>> Advertising mavens would have you believe there are differences, but
>> other than radial tire technology that was introduced long ago, there
>> have been no significant changes other than rubber compounds and quieter
>> tread designs, which DO NOT affect suspension performance.  For the most
>> part, sidewalls haven't changed much other than as fashion statements.
>> Sidewall height affects the spring rate significantly if you use tire
>> with minimal sidewalls (20" rubber bands)but on our cars, pretty much
>> aren't used, but from a suspension point of view are monumentally stupid.
>> -James
>>
>>
>>
>>
>>
>>
>>
>>
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>> __________________________________________________________
>> Message transport security by GatewayDefender.com
>> 9:41:13 PM ET - 4/14/2006
> 
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