Hi Ed
Can you tell us if NASCAR 2 has any new setup variables, i.e. springs, etc., not
available in NASCAR 1?
Chuck Stuart - Mesquite TX USA
Hawaii: ChuckStuart(7)
Hi Ed
Can you tell us if NASCAR 2 has any new setup variables, i.e. springs, etc., not
available in NASCAR 1?
Chuck Stuart - Mesquite TX USA
Hawaii: ChuckStuart(7)
That said, I would like to see them replace tire stagger with another
adjustment, such as individual spring and shock adjustments, or a track
bar adjustment.
Many people don't know, but, with the introduction of radial tires, the
teams lost the ability to adjust tire stagger. A radial tire doesn't
"grow" when air is added like a bias-ply tire does. Therefore, the teams
are stuck with whatever stagger Goodyear builds into the tires.
Changing air pressure in a radial DOES change the spring rate of the tire.
In fact, I saw Ray Evernham demonstrating this on ESPN. One pound of air
pressure changes the spring rate of the tire (that's the stiffness of the
sidewall) some 10 to 15 lbs! Needless to say, this has a huge effect on
handling.
This may be something for Papyrus to consider for NASCAR 3! :-)
Pat
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Pat Campbell The Chevy Monte Carlo 6,94,88,16,4,25
Lexington, AL NASCAR's Wide Load War Eagle!!!
Home Page: http://fly.hiwaay.net/~pscampbe/pscindex.html
NASCAR Stats: http://fly.hiwaay.net/~pscampbe/nascstat.html
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> Many people don't know, but, with the introduction of radial tires, the
> teams lost the ability to adjust tire stagger. A radial tire doesn't
> "grow" when air is added like a bias-ply tire does. Therefore, the teams
> are stuck with whatever stagger Goodyear builds into the tires.
> Changing air pressure in a radial DOES change the spring rate of the tire.
> In fact, I saw Ray Evernham demonstrating this on ESPN. One pound of air
> pressure changes the spring rate of the tire (that's the stiffness of the
> sidewall) some 10 to 15 lbs! Needless to say, this has a huge effect on
> handling.
Would Goodyear not ship sets of various sized tires for the teams to
choose from?
Neil
--
Meek and obedient you follow the leader
down well trodden corridors into the valley of steel..
Neil Yeatman, Ajax, Ontario, CANADA
>> Many people don't know, but, with the introduction of radial tires, the
>> teams lost the ability to adjust tire stagger. A radial tire doesn't
>> "grow" when air is added like a bias-ply tire does. Therefore, the teams
>> are stuck with whatever stagger Goodyear builds into the tires.
>> Changing air pressure in a radial DOES change the spring rate of the tire.
>> In fact, I saw Ray Evernham demonstrating this on ESPN. One pound of air
>> pressure changes the spring rate of the tire (that's the stiffness of the
>> sidewall) some 10 to 15 lbs! Needless to say, this has a huge effect on
>> handling.
>Pardon my ignorance, but isn't stagger created by using a physically
>larger tire? Simply over-inflating a tire to enlarge it would wreak
>havoc in setting up, and they'd be overheating in the middle, no...????
>Would Goodyear not ship sets of various sized tires for the teams to
>choose from?
In IndyCar, I think they do have sets with various staggers built in for the
teams to try out. I'm 99% sure, however, that for NASCAR, they only have one
stagger available to the teams. And, it's probably not Goodyear's
decision--it more than likely is NASCAR's. To quote Bobby Labonte when
someone asked him how they changed stagger, "Well, we get whatever Goodyear
gives us these days."
Pat
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Pat Campbell The Chevy Monte Carlo 6,94,88,16,4,25
Lexington, AL NASCAR's Wide Load War Eagle!!!
Home Page: http://fly.hiwaay.net/~pscampbe/pscindex.html
NASCAR Stats: http://fly.hiwaay.net/~pscampbe/nascstat.html
---------------------------------------------------------------------------
> > Many people don't know, but, with the introduction of radial tires, the
> > teams lost the ability to adjust tire stagger. A radial tire doesn't
> > "grow" when air is added like a bias-ply tire does. Therefore, the teams
> > are stuck with whatever stagger Goodyear builds into the tires.
> > Changing air pressure in a radial DOES change the spring rate of the tire.
> > In fact, I saw Ray Evernham demonstrating this on ESPN. One pound of air
> > pressure changes the spring rate of the tire (that's the stiffness of the
> > sidewall) some 10 to 15 lbs! Needless to say, this has a huge effect on
> > handling.
> Pardon my ignorance, but isn't stagger created by using a physically
> larger tire? Simply over-inflating a tire to enlarge it would wreak
> havoc in setting up, and they'd be overheating in the middle, no...????
> Would Goodyear not ship sets of various sized tires for the teams to
> choose from?
> Neil
> --
> Meek and obedient you follow the leader
> down well trodden corridors into the valley of steel..
> Neil Yeatman, Ajax, Ontario, CANADA
> Goodyear build the stagger into the tire. The crews cannot change that. Goodyear does not bring a variety of staggered tires for the crews
>> Many people don't know, but, with the introduction of radial tires, the
>> teams lost the ability to adjust tire stagger. A radial tire doesn't
>> "grow" when air is added like a bias-ply tire does. Therefore, the teams
>> are stuck with whatever stagger Goodyear builds into the tires.
>> Changing air pressure in a radial DOES change the spring rate of the tire.
>> In fact, I saw Ray Evernham demonstrating this on ESPN. One pound of air
>> pressure changes the spring rate of the tire (that's the stiffness of the
>> sidewall) some 10 to 15 lbs! Needless to say, this has a huge effect on
>> handling.
>Pardon my ignorance, but isn't stagger created by using a physically
>larger tire? Simply over-inflating a tire to enlarge it would wreak
>havoc in setting up, and they'd be overheating in the middle, no...????
I'm pretty sure that that Goodyear provides all the teams with the same
tires. Sometimes they will bring a couple of different compounds, but I
think the stagger is the same on all the sets.
Dave "davids" Sparks
Sequoia Motorsports
>With bias ply tires, they could just over-inflate to get the same effect.
>As P.Campbell notes, this doesn't work with radials, it just stiffens the
>sidewalls. However, tire pressure can have a tremendous effect on handling,
>and many times, they will make handling adjustments with just tire
>pressure.
>>Would Goodyear not ship sets of various sized tires for the teams to
>>choose from?
Tires are the "one common denominator between all 40-some teams out there,"
says Larry McReynolds, crew chief and chassis expert at Robert Yates
Racing. "The construction, stagger and compound are the same for everybody.
Last year, there was a choice out there for some teams (Hoosier), but
that's one factor that's gone now."
Dave "davids" Sparks
Sequoia Motorsports