Okay, I know that one is supposed to setup the camber to get even temps
across the tires. Well at some tracks I can come close, but somehow no
cigar. . .
After one gets "close", what is the next adjustment to zero in on even
tire temps? For example RF 188 189 190 (or is this to be expected?).
In some cases all four tires are out of whack slightly and changing
camber will only make them worse. Will toe-in affect this, or spring
rate or roll-bar adjustment?
--
**************************** Michael E. Carver *************************
Upside out, or inside down...False alarm the only game in town.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=<[ /./. [- < ]>=-=-=-=-=-=-=-=-=-=-=-=-=-=
I got the impression from Doug Arnao's comments on setup that it is good to
always have a small bit of negative camber to offset when the tire is under
load in the corners, so far I have had good results with this, and the result
is that usually the tire is a degree or more hotter on the inside of the
tire compared to the middle and outer, but I have rarely managed to get the
temps fully even across the tire, sometimes close but never fully even. Also
be aware that certain hard corners can heat up the outside tires causing temp
spikes that will seem a bit out of whack, but return to more normal at the
other parts of the track.
The rollbars also seem to affect the temps, the harder the rollbar the less
give in the roll of the car and suspension and this seems to make the tire
run hotter.
Overall I don't worry too much about the temps being perfect as long as
they are close and the rollbar settings give a good feel for the particular
track, of course I am still a student in this setup game, so my comments
above could be totally wrong ;-)
Hope they help though.
Seeyas on the track.
--John (Joao) Silva
Quoted text (15 lines)
>Okay, I know that one is supposed to setup the camber to get even temps >across the tires. Well at some tracks I can come close, but somehow no >cigar. . . >After one gets "close", what is the next adjustment to zero in on even >tire temps? For example RF 188 189 190 (or is this to be expected?). >In some cases all four tires are out of whack slightly and changing >camber will only make them worse. Will toe-in affect this, or spring >rate or roll-bar adjustment? >-- >**************************** Michael E. Carver ************************* > Upside out, or inside down...False alarm the only game in town. >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=<[ /./. [- < ]>=-=-=-=-=-=-=-=-=-=-=-=-=-=Hi Michael, you will never be able to match the temperature range
perfectly across the tyres all the time, because of the nature of the
GPL tracks. Usually the temperature readings will reflect the average
readings you are getting on any given track.
This is due to the left/right corner combinations of race circuits,
where everything is not always at a constant.
On an oval, if your driving style was smooth and constant, lap after
lap, then it is possible to maintain uniform temp readings across the
tyre, but with the left/right combo's of a GPL track, it is virtually
impossible.
Your temperature readings are fine and are as close as you can feasibly
expect.
As an example, take the readings after you warm up the tyres for a
couple of laps, just after you straighten up coming out of a fast left
hand sweeper and you will notice that the right side tyres have a
higher outside temp than normal and the left side tyres will have a
higher inside temp than normal, when compared to the readings on an
identical fast right hander or straight...
It usually just comes down to where you take the readings on the track.
If you want to be faster on a given section of track, take the readings
while you are on that section of track and adjust them for that. You
will probably find by doing that though, the readings will be slightly
uneven for your normal reading point. (all part of setting up for the
entire lap)
You just have to try and maintain a reasonable average spread over the
entire track, and your temps relate to this well.
There are exceptions, where you would want the outsides or insides to
be hotter at a a given part of a track, but this just relates to how
you want your car to stick in certain corners.
Cheers,
Ron
*************************
> Upside out, or inside down...False alarm the only game in town.
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=<[ /./. [- <
]>=-=-=-=-=-=-=-=-=-=-=-=-=-=
I try to get tie temps in line for the most right or left hand turns on a
given course. Monza for example I worry about the right hand turns for
tire temps. This tells me if my camber and anti roll bar settings are
correct. The tire temps are telling me if the tire is proper facing the
road in these corners. Then I go out and try to make the car liveable in
the other turns. I can run wide open thru Ascari so my setup feels good
and in training turns 1:28s.
For other courses I will also look at what corners are most important, IE
leading to long straights where exit speed is important to get maximum
effect from the straight The last turn at the Esses at Watkins is
important and so is Big bend. Getting the car setup to take these turns
fast is important, so I also concentrate on these too. Tracks like
Zanvoort are harder since the you seem to be turning a lot of the time so I
may just go with a general camber settings to make car go thru any given
corner well.
Most tracks will have more on one type of corner then another ie more lefts
then rights or vice versa. Hope this helps.
Dave
<snip>
% With GPL we can "instantly" return to the pits from any part of the track
% so we don't have to worry about the changes due to driving back to the pits
% but if GPL models this correctly it does indicate that the "snapshot" tyre
% temperatures we get shouldn't be taken as especially indicative of the
% actual readings at other parts of the circuit.
Thanks for the tips folks. . . I don't really check my tire temps
accept after a long run and then usually after a fairly long straight
(to allow the tires to get back to "normal"). It was just interesting
that with some setups and some tracks I can achieve an even temp all the
way across for some tracks, but others, it just never happens. Now,
hopefully I can stop worrying (well at least aim for a little more heat
on the insides than the outsides) and just learn how to drive. <G>
--
**************************** Michael E. Carver *************************
Upside out, or inside down...False alarm the only game in town.
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=<[ /./. [- < ]>=-=-=-=-=-=-=-=-=-=-=-=-=-=
