rec.autos.simulators

Question for the "garage" rpos in GPL...

David Mocn

Question for the "garage" rpos in GPL...

by David Mocn » Fri, 14 May 1999 04:00:00

I concider myself quiete poficient in setting up cars in GPL, I "think" I know
what every single adjustment does ... though, I have this re-acuring problem.
This happens at Monza in particular and seems to happen with whatever car I
take out (Honda and Brabham comes to mind). Now, I have the cars setup and
when I go out on the 1st lap (outlap) it behaves beuitifuly through the 1st
corner (the fast right hander). What I likethe car doing is come in at full
speed, dabb the breaks into the corner and then trailbreak slightly into the
corner - this pulls the car onto the apex. As soon as this happens I sqeeze
the throttle and drift slowly to the outside of the corner on the exit (the
car is either rock solid (or slighly 4-wheel drifting). This I'm happy with
this. Though, on the lap/s after (I figure once the tyres are warm) the car
feels like a "slug" though this corner. I do exactly the came thing but all
that the car wants to do is understeer. If I break hard enough, the car will
pull onto the apex though, by then I've slowed down way too much. Seems like I
need so much more lock and break in order to do what I did so "effortlessly"
on the 1st lap.

I know that it has something to do with the tyre pressures, though, what I do
not know is "why?" is this happening. Also, any suggestions on what to "tweek"
in order to eliminate this problem (I''m basically very happy with my setup)?

Regards,
David

David Mocn

Question for the "garage" rpos in GPL...

by David Mocn » Fri, 14 May 1999 04:00:00

Thanks Ben,
Though, I kind of figured that my "cold tyre" handling is good while the "warm
tyre" handling is not. Though, I'm not sure why it bahaves like that and what
to change in order to compensate for the extra heat. Any help would be
appreciated.

Regards,
Dvaid



>IMO you should set your car up for "warm" handling as described.  This will
>lead to a very loose car for the first lap or so....you will have to go easy
>on the throttle.  You can increase tyre pressure slightly to compensate,
>however this compromises the warm handling which is where most racing takes
>place.

>Ben...who thinks the above reads very badly but hopes the point gets
>through....



>> I concider myself quiete poficient in setting up cars in GPL, I "think" I
>know
>> what every single adjustment does ... though, I have this re-acuring
>problem.
>> This happens at Monza in particular and seems to happen with whatever car
>I
>> take out (Honda and Brabham comes to mind). Now, I have the cars setup and
>> when I go out on the 1st lap (outlap) it behaves beuitifuly through the
>1st
>> corner (the fast right hander). What I likethe car doing is come in at
>full
>> speed, dabb the breaks into the corner and then trailbreak slightly into
>the
>> corner - this pulls the car onto the apex. As soon as this happens I
>sqeeze
>> the throttle and drift slowly to the outside of the corner on the exit
>(the
>> car is either rock solid (or slighly 4-wheel drifting). This I'm happy
>with
>> this. Though, on the lap/s after (I figure once the tyres are warm) the
>car
>> feels like a "slug" though this corner. I do exactly the came thing but
>all
>> that the car wants to do is understeer. If I break hard enough, the car
>will
>> pull onto the apex though, by then I've slowed down way too much. Seems
>like I
>> need so much more lock and break in order to do what I did so
>"effortlessly"
>> on the 1st lap.

>> I know that it has something to do with the tyre pressures, though, what I
>do
>> not know is "why?" is this happening. Also, any suggestions on what to
>"tweek"
>> in order to eliminate this problem (I''m basically very happy with my
>setup)?

>> Regards,
>> David

Ben

Question for the "garage" rpos in GPL...

by Ben » Sat, 15 May 1999 04:00:00

IMO you should set your car up for "warm" handling as described.  This will
lead to a very loose car for the first lap or so....you will have to go easy
on the throttle.  You can increase tyre pressure slightly to compensate,
however this compromises the warm handling which is where most racing takes
place.

Ben...who thinks the above reads very badly but hopes the point gets
through....


Tim Wheatle

Question for the "garage" rpos in GPL...

by Tim Wheatle » Sat, 15 May 1999 04:00:00

David,
I have found the same thing, on my Spa warm up laps, I can take corners
flat, that a lap later I need to lift off to make it around....

--
Tim "Calm Down" Wheatley
________________________________________________

                                  Tim Wheatley
                "Yellow menacing helmet in the mirror"
                           http://start.at/igps_stats
     IGPS - Ferrari Challenge - UKGPL - Summer Cup Driver
                      http://drive.to/grandprixlegends

                  http://website.lineone.net/~nascar
________________________________________________

> Thanks Ben,
> Though, I kind of figured that my "cold tyre" handling is good while the
"warm
> tyre" handling is not. Though, I'm not sure why it bahaves like that and
what
> to change in order to compensate for the extra heat. Any help would be
> appreciated.

> Regards,
> Dvaid



> >IMO you should set your car up for "warm" handling as described.  This
will
> >lead to a very loose car for the first lap or so....you will have to go
easy
> >on the throttle.  You can increase tyre pressure slightly to compensate,
> >however this compromises the warm handling which is where most racing
takes
> >place.

> >Ben...who thinks the above reads very badly but hopes the point gets
> >through....



> >> I concider myself quiete poficient in setting up cars in GPL, I "think"
I
> >know
> >> what every single adjustment does ... though, I have this re-acuring
> >problem.
> >> This happens at Monza in particular and seems to happen with whatever
car
> >I
> >> take out (Honda and Brabham comes to mind). Now, I have the cars setup
and
> >> when I go out on the 1st lap (outlap) it behaves beuitifuly through the
> >1st
> >> corner (the fast right hander). What I likethe car doing is come in at
> >full
> >> speed, dabb the breaks into the corner and then trailbreak slightly
into
> >the
> >> corner - this pulls the car onto the apex. As soon as this happens I
> >sqeeze
> >> the throttle and drift slowly to the outside of the corner on the exit
> >(the
> >> car is either rock solid (or slighly 4-wheel drifting). This I'm happy
> >with
> >> this. Though, on the lap/s after (I figure once the tyres are warm) the
> >car
> >> feels like a "slug" though this corner. I do exactly the came thing but
> >all
> >> that the car wants to do is understeer. If I break hard enough, the car
> >will
> >> pull onto the apex though, by then I've slowed down way too much. Seems
> >like I
> >> need so much more lock and break in order to do what I did so
> >"effortlessly"
> >> on the 1st lap.

> >> I know that it has something to do with the tyre pressures, though,
what I
> >do
> >> not know is "why?" is this happening. Also, any suggestions on what to
> >"tweek"
> >> in order to eliminate this problem (I''m basically very happy with my
> >setup)?

> >> Regards,
> >> David

Michael E. Carve

Question for the "garage" rpos in GPL...

by Michael E. Carve » Mon, 17 May 1999 04:00:00


% Thanks Ben,
% Though, I kind of figured that my "cold tyre" handling is good while the "warm
% tyre" handling is not. Though, I'm not sure why it bahaves like that and what
% to change in order to compensate for the extra heat. Any help would be
% appreciated.

I am no grease monkey pro, but about mid-way through your first lap,
press ESC and a head back to the pits.  Look at your tire temps and
pressures.  This is probably what you want them to look like after a few
hard laps.  Therefore, start removing a pound from each tire, go back
out and see if the "sweet" feeling doesn't begin to show up after a
couple of laps.  Caveat:  with lower pressures on cold tires the car
will be loose, be careful so as not to unevenly heat up the tires trying
to handle the loose car.

Another thing to consider.... lowering tire temps is akin to softening
the shocks...  You might try keeping the tire pressures but take a
click out of the shocks instead.

--
**************************** Michael E. Carver *************************
     Upside out, or inside down...False alarm the only game in town.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=<[ /./.  [-  < ]>=-=-=-=-=-=-=-=-=-=-=-=-=-=

David Mocn

Question for the "garage" rpos in GPL...

by David Mocn » Mon, 17 May 1999 04:00:00

Thanks Michael,
That makes sence ... I';ll give that a go.

regards,
David Mocnay




>% Thanks Ben,
>% Though, I kind of figured that my "cold tyre" handling is good while the
> "warm
>% tyre" handling is not. Though, I'm not sure why it bahaves like that and what

>% to change in order to compensate for the extra heat. Any help would be
>% appreciated.

>I am no grease monkey pro, but about mid-way through your first lap,
>press ESC and a head back to the pits.  Look at your tire temps and
>pressures.  This is probably what you want them to look like after a few
>hard laps.  Therefore, start removing a pound from each tire, go back
>out and see if the "sweet" feeling doesn't begin to show up after a
>couple of laps.  Caveat:  with lower pressures on cold tires the car
>will be loose, be careful so as not to unevenly heat up the tires trying
>to handle the loose car.

>Another thing to consider.... lowering tire temps is akin to softening
>the shocks...  You might try keeping the tire pressures but take a
>click out of the shocks instead.


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