-Larry
-Larry
:)
-Larry
> Ruud van Gaal
> Free car sim: http://www.racer.nl/
> Pencil art : http://www.marketgraph.nl/gallery/
>> Uhm, radius or circumference? I'd say circumference stays quite the
>> same in all cases, unless you calculate it as 2*PI*r. ;-)
>Ah, but having given it some thought, one could assume that it's the
>"roll radius" which is important here and that changes with the pressure
>in the tire ?
I just use the wheel radius all the time. :) I think the radius change
is a secondary effect with respect to tire temp changes.
Quite good. ;-)
Ruud van Gaal
Free car sim: http://www.racer.nl/
Pencil art : http://www.marketgraph.nl/gallery/
>> Anybody know?
> >> Uhm, radius or circumference? I'd say circumference stays quite the
> >> same in all cases, unless you calculate it as 2*PI*r. ;-)
> >Ah, but having given it some thought, one could assume that it's the
> >"roll radius" which is important here and that changes with the pressure
> >in the tire ?
> Right, it's called Re; effective radius at load X.
> However, there's a world of information behind this, since the radius
> from the axis down is different from the radius going up to the top of
> the wheel. So there is no one radius.
> So Re is really just an average which is more of an empirical result;
> if after 1km your wheels have rotated X times, then (assuming no tire
> slip) the effective circumference can be calculated as 1km/X (did I
> miss a factor here?). From which you can calculate Re. Not nice in
> sims, but there has been work done on this, to estimate Re using Yet
> Another Set of Pacejka Coefficients (tm).
> I just use the wheel radius all the time. :) I think the radius change
> is a secondary effect with respect to tire temp changes.
Why thank you
Beers and cheers
(uncle) Goy
"The Pits" http://www.theuspits.com/
"A man is only as old as the woman he feels"
--Groucho Marx--
> >What Tire Pressure?
> Good Year *** or Bridgestone ***? :)
> >-Larry
> >> Anybody know?
> Ruud van Gaal
> Free car sim: http://www.racesimcentral.net/
> Pencil art : http://www.racesimcentral.net/
> -Larry
> > Anybody know?
How 'bout a ballpark figure, "under normal driving conditions", LOL.
I am looking for something so I can "guestimate" what gear ratio I
need for a given speed at a given rpm, without having to do a lot of
trial and error.
Wouldn't circumference always be (practically) the same, anyway?
Gerald
> > -Larry
> > > Anybody know?
> Let's say it's roughly equal to all the hot air that has been let out
> thus far in response to (what I thought (that's my problem, btw)
> should be) a simple question! ;) LOL, j/k, etc...
> How 'bout a ballpark figure, "under normal driving conditions", LOL.
> I am looking for something so I can "guestimate" what gear ratio I
> need for a given speed at a given rpm, without having to do a lot of
> trial and error.
> Wouldn't circumference always be (practically) the same, anyway?
> Gerald
Take care of the 'final drive ratio'; the diff ratio. That's part of
the gearing too.
Ruud
>> > -Larry
>> > > Anybody know?
>> Let's say it's roughly equal to all the hot air that has been let out
>> thus far in response to (what I thought (that's my problem, btw)
>> should be) a simple question! ;) LOL, j/k, etc...
>> How 'bout a ballpark figure, "under normal driving conditions", LOL.
>> I am looking for something so I can "guestimate" what gear ratio I
>> need for a given speed at a given rpm, without having to do a lot of
>> trial and error.
>> Wouldn't circumference always be (practically) the same, anyway?
>> Gerald
I haven't had a chance to test out whether or not the game varies the
size based on pressure or not. Wish the tach was a bit more
precise/readible.
Gerald
> > > What Tire Pressure?
> > > -Larry
> > > > Anybody know?
> > Let's say it's roughly equal to all the hot air that has been let out
> > thus far in response to (what I thought (that's my problem, btw)
> > should be) a simple question! ;) LOL, j/k, etc...
> > How 'bout a ballpark figure, "under normal driving conditions", LOL.
> > I am looking for something so I can "guestimate" what gear ratio I
> > need for a given speed at a given rpm, without having to do a lot of
> > trial and error.
> > Wouldn't circumference always be (practically) the same, anyway?
> > Gerald