On Fri, 12 May 2000 00:03:04 GMT, "Jan Verschueren"
<[email hidden]> wrote:
>Hmmm so any car in straigth line decelleration (nose down) is loose by
>definition? -Interesting to know. ;-)
>
>Seriously, I fail to see how pitch can be used to deduce the handling of the
>cars on track. It's an indication of weight shift for sure, but afaik does
>not imply a loose condition.
You may not have seen the way the real life cars are set up for
certain ovals, but they look like the rear suspension is collapsed.
I haven't D/L'd the video, but they don't run ass-high at any tracks
in reality.
Maybe he was getting at something along those lines???
Tim
In N3, all cars seem to be running really loose (that is, nose-down in
turns)..
And yet, not a lot of squealing.
I noticed the same effect in the screens and video of N4.
What gives? Do cars really run this way?
Andrew
Are you talking about pitch or yaw?
When watching the cars on TV they do have the rear hanging out when
driving on the edge.
Andrew wrote:
Quoted text (11 lines)
> > In N3, all cars seem to be running really loose (that is, nose-down in > turns).. > > And yet, not a lot of squealing. > > I noticed the same effect in the screens and video of N4. > > What gives? Do cars really run this way? > > AndrewHmmm so any car in straigth line decelleration (nose down) is loose by
definition? -Interesting to know. ;-)
Seriously, I fail to see how pitch can be used to deduce the handling of the
cars on track. It's an indication of weight shift for sure, but afaik does
not imply a loose condition.
Mind you, the drivers seem to lose the back end quite often in the clip. ;-)
Jan.
=---
Andrew wrote...
Quoted text (10 lines)
> In N3, all cars seem to be running really loose (that is, nose-down in > turns).. > > And yet, not a lot of squealing. > > I noticed the same effect in the screens and video of N4. > > What gives? Do cars really run this way? > > AndrewEven in N2 and N3 the car hangs out through the turns. Just take a look at
replay at atlanta etc. from TV1 view....
Alan Orton wrote in message <[email hidden]>...
Quoted text (15 lines)
>Are you talking about pitch or yaw? >When watching the cars on TV they do have the rear hanging out when >driving on the edge. >Andrew wrote: >> >> In N3, all cars seem to be running really loose (that is, nose-down in >> turns).. >> >> And yet, not a lot of squealing. >> >> I noticed the same effect in the screens and video of N4. >> >> What gives? Do cars really run this way? >> >> AndrewYes, sorry, I should have clarified - by nose-down, I did indeed mean that
the cars seem to be YAWING to the left, that is, the fronts of the cars
appear to be closer to the bottom of the track than the rears of the cars.
Around turns, anyway. I believe this is incorrect; maybe in dirt track
racing or outlaws or something, but It shouldn't be happening with these
cars.
Andrew
Andrew <[email hidden]> wrote in message
news:RCGS4.185639$[email hidden]...
Quoted text (12 lines)
> In N3, all cars seem to be running really loose (that is, nose-down in > turns).. > > And yet, not a lot of squealing. > > I noticed the same effect in the screens and video of N4. > > What gives? Do cars really run this way? > > Andrew > >Andrew wrote:
This is just as it should be. All types of tyres have their maximum grip
at a given slip angle, which is at the order of magnitude about 5
degrees for F1 slicks from previous seasons at the typical loads. I can
imagine the Nascar tyres having higher optimal slip angles (closer to 10
degrees) just to cure some of the nervousness of the tyres wih higher
cornering stiffness (the amount of force per degee of slip angle).
Obviously, the car will acquire a yaw angle due to this tyre property,
no matter what car it is. GPL era cars have even higher optimal slip
angles (lower cornering stiffness), while CART cars have them lower. Yet
it is always there. You can see it in real life footage if you are
careful, although it is harder to notice due to the moving cameras.
-Gregor
Quoted text (10 lines)
> > Yes, sorry, I should have clarified - by nose-down, I did indeed mean that > the cars seem to be YAWING to the left, that is, the fronts of the cars > appear to be closer to the bottom of the track than the rears of the cars. > Around turns, anyway. I believe this is incorrect; maybe in dirt track > racing or outlaws or something, but It shouldn't be happening with these > cars. > > Andrew >Gregor Veble wrote:
> See, for example
http://www.truckworld.com/Racing/NASCAR-Truck/98-7-NY/nascar3.jpg
It's trucks but nevertheless.
