TV Deal

#**101**

Carey Akin wrote:

Quote:

"Mark Cook" <mcook (AT) prodigy (DOT) net> wrote in message
news:MYgqf.4235$fO5.1961 (AT) newssvr33 (DOT) news.prodigy.com...

Once force is applied to a tire, it "flexes", and then returns back to
it's
initial "shape". That is a spring.

But armpit is correct in the regard that friction also contributes to shock
absorption; and there is a (small) frictional component to the flexing
action of a tire (independent of traction, or at least the action of the
contact patch with the pavement). Go back a couple of decades, before the
current accumulator type shock absorbers and you will find that they used
"friction" shocks.

Are you talking about the shocks on my Dad's 1938 Ford?

Quote:

Carey in Manvel

#**102**

In article <fLhqf.327274$zb5.315294 (AT) bgtnsc04-news (DOT) ops.worldnet.att.net>,
"Carey Akin" <cmakin (AT) att (DOT) net> wrote:

Quote:

Go back a couple of decades, before the
current accumulator type shock absorbers and you will find that they used
"friction" shocks.

Carey in Manvel

Geez, Carey, I know time flies by all of us wicked fast,
but not THAT fast!!
I think Quickest Maximus used friction shocks on his chariot!

Dan
----------------------------------------------
Why is it when a man talks nasty to a woman it's harassment,
and when a woman talks nasty to a man, it's 5.99 a minute?

#**103**

"Chuck Steak" <Chuck_Steak (AT) nospam (DOT) com> wrote

Quote:

Geez, Carey, I know time flies by all of us wicked fast,
but not THAT fast!!
I think Quickest Maximus used friction shocks on his chariot!

Okay, more than a couple of decades ago, but not much more. Old Indy cars

used to use them.

Carey in Manvel

#**104**

<tomd88 (AT) bvunet (DOT) net> wrote

Quote:

"armpit" <udontneedit (AT) myemail (DOT) addy> wrote in message
news:aofqf.15356$Qa1.9365 (AT) bignews1 (DOT) bellsouth.net...

"Chuck Steak" <Chuck_Steak (AT) nospam (DOT) com> wrote in message
news:YOWdnbeSUJn45jTeRVn-vw (AT) rcn (DOT) net...
In article <KLeqf.177769$qk4.92804 (AT) bgtnsc05-news (DOT) ops.worldnet.att.net>,

snip

This is the main point that I think some are missing.
I don't think there is an argument about tire pressure
having an effect on both shock and spring, but you cannot
use an example of a tire with 3# of air, and a tire with 50# of
air as your basis for comparison.
Today, these guys are adjusting air pressure in 1/4# increments.
That has, for all practical purposes, no effect on ride height,
shock dampening, or 'total spring rate' as some like to call it.
It is REAL, REAL small...

I agree that shock absorption rates are not affected appreciably by tire
pressure changes.

I do think that the rebound rate of the tire is a significant part of
the total
change in handling from changing tire pressure.

Been lurking thru this thread and b'leeve these last two posts get to the
crux of
it. The current radials, with their thin side walls, have led to the use
of very
small adjustment increments in psi. Some slight 'spring rate' change
results on
that corner of the car and another key point, I b'leeve, is the change in
size of
the contact patch...affecting grip.

--
Tom in Bristol

See how fast things get sorted out once Janal is out of the way? He clearly
lacked the technical knowledge to make his point, and just kept blubbering
on about brick walls when he was clearly the one who had reached his limit.

To Janal: Stick to your brand of "journalism" and leave the technical
discussions to those that actually have some knowledge about the subject
that goes beyond what you see & hear on teevee.

#**105**

On Wed, 21 Dec 2005 12:06:23 -0500, <tomd88 (AT) bvunet (DOT) net> wrote:

Quote:

Been lurking thru this thread and b'leeve these last two posts get
to the crux of it.

Good grief... (shakes head)

Quote:

The current radials, with their thin side walls, have led to the use
of very small adjustment increments in psi.

Was not a sticking point; no disagreements regarding that.

Quote:

Some slight 'spring rate' change results on that corner of the car...

And I repeatedly said...

"Air pressure changes might slightly change the behavior of
the shocks & springs during a race, but the two areas are not
absolutely interchangeable."

"The difference is slight but a softer tire makes both the shock
and spring work less, period."

"I think the affect is slight; a fine-tuning type of adjustment."

Quote:

and another key point, I b'leeve, is the change in size of the contact
patch...affecting grip.

And I repeatedly said...

"You can fine-tune the S&S in that way, but your air pressures
are best left to getting the best grip (bite) to tire heat (wear)
balance."

"Adding to the tire pressures will help hold down heat and tire
wear. Lower tire pressures will provide more grip; 'bite'."

"I think you first get your S&S right, and then adjust the tire
pressures according to grip and heat, while keeping in mind
what that will do to the original S&S settings."

On Thu, 22 Dec 2005 00:09:12 -0500, "armpit"
<udontneedit (AT) myemail (DOT) addy> wrote:

Quote:

See how fast things get sorted out once Janal is out of the way? He clearly
lacked the technical knowledge to make his point, and just kept blubbering
on about brick walls when he was clearly the one who had reached his limit.

To Janal: Stick to your brand of "journalism" and leave the technical
discussions to those that actually have some knowledge about the subject
that goes beyond what you see & hear on teevee.

I'm done with the thread. I hope everyone has a Merry Christmas.