<VV> tire pressure gauge

[K. Michael Kost]

On my truck it's not that the pressure changes on it's own with load but that 
the contact patch on the ground for a given pressure changes with load. Also the 
tire's load carrying ability is determined by the pressure. That's why I use 55 
psi empty and 80 psi loaded. That's also why the front tires on our Corvairs use 
a lower pressure than the back. If you put 500 lbs in the trunk you would 
probably want little or no pressure differential front to back.

Mike Kost



________________________________
From: Frank DuVal <corvairduval at cox.net>
To: virtualvairs at corvair.org
Sent: Wed, February 8, 2012 9:13:09 AM
Subject: Re: <VV> tire pressure gauge

Yes, we have a military vehicle at work with that feature. An MTVR.  5 
tires work great. One tire seems to work in reverse! We have to keep 
filling it up with an air hose..

I'm not sure there is a pressure reading difference on tires as you load 
and unload them.  I can set the pressure on a tire on the tire machine 
and then it reads the same when it is installed on the vehicle and 
loaded. Same with loaded and unloaded readings on rear pick up truck tires.

Seth says his Corvette does display psi. Hey Seth, what does it read in 
a corner? Not like you are looking at the road!

Frank DuVal

On 2/8/2012 9:57 AM, jvhroberts at aol.com wrote:
>   Well, the Army did this. The HMMWVs and the DUKWs,among others, had 
>deflate-and-inflate-on-the-go capability. Not suggesting we build rotary unions 
>into the spindle and bearing carriers of our cars...
>
> TPMS is a great idea. I just wish it transmitted actual pressure data, not just 
>a go-no go signal. Now, if there was a display for that, can you imagine how 
>many drivers would lose their minds as the pressure went up and down with 
>temperature, load, etc.? I am sure tire pressure rises on the outboard tires at 
>full cornering speeds...
>
>
>
> John Roberts
>
>
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