rec.autos.simulators

GPL: Oval setups?

Wosc

GPL: Oval setups?

by Wosc » Tue, 30 Jan 2001 13:22:51

I have just gotten an interest in some GPL oval racing.  Anyone have some
good oval setups?  Everything I make either bottoms, overheats the tires, or

have some.

Jesse Black

Alan Orto

GPL: Oval setups?

by Alan Orto » Tue, 30 Jan 2001 14:32:30


> I have just gotten an interest in some GPL oval racing.  Anyone have some
> good oval setups?  Everything I make either bottoms, overheats the tires, or

> have some.

> Jesse Black

A good tip for oval racing in gpl is to play with the camber at long
tracks. Put the left side camber near max positive and right side near
max negative. But the steering will pull to the left,ala N4. ;)
With the camber at the extremes you lower the rolling resistance with
less tire on the ground so you have higher top speeds, plus the car
pulls itself through the corners. Just don't use too much camber on
smaller tracks or you'll lose too much grip.

Goodluck, Jesse.

--
Solo1 C-Modified (CASC-OR/BARC)
http://www.barc-oc.com
http://www.casc.on.ca

bph..

GPL: Oval setups?

by bph.. » Tue, 30 Jan 2001 17:38:33

There  are  some  at  bhmotorsports.com  and  more  at  Schubis.




> > I have just gotten an interest in some GPL oval racing.  Anyone
have some
> > good oval setups?  Everything I make either bottoms, overheats the
tires, or

if you
> > have some.

> > Jesse Black

> A good tip for oval racing in gpl is to play with the camber at long
> tracks. Put the left side camber near max positive and right side near
> max negative. But the steering will pull to the left,ala N4. ;)
> With the camber at the extremes you lower the rolling resistance with
> less tire on the ground so you have higher top speeds, plus the car
> pulls itself through the corners. Just don't use too much camber on
> smaller tracks or you'll lose too much grip.

> Goodluck, Jesse.

> --
> Solo1 C-Modified (CASC-OR/BARC)
> http://www.barc-oc.com
> http://www.casc.on.ca

Sent via Deja.com
http://www.deja.com/
Semi

GPL: Oval setups?

by Semi » Wed, 31 Jan 2001 04:00:18

imho,
Stiffen the lot to the max, (esp in bristol)
give it a bit of toe in too, run a few test laps then adjust the camber
angles individually, works for me

> There  are  some  at  bhmotorsports.com  and  more  at  Schubis.




> > > I have just gotten an interest in some GPL oval racing.  Anyone
> have some
> > > good oval setups?  Everything I make either bottoms, overheats the
> tires, or

> if you
> > > have some.

> > > Jesse Black

> > A good tip for oval racing in gpl is to play with the camber at long
> > tracks. Put the left side camber near max positive and right side near
> > max negative. But the steering will pull to the left,ala N4. ;)
> > With the camber at the extremes you lower the rolling resistance with
> > less tire on the ground so you have higher top speeds, plus the car
> > pulls itself through the corners. Just don't use too much camber on
> > smaller tracks or you'll lose too much grip.

> > Goodluck, Jesse.

> > --
> > Solo1 C-Modified (CASC-OR/BARC)
> > http://www.barc-oc.com
> > http://www.casc.on.ca

> Sent via Deja.com
> http://www.deja.com/

Stephen Smit

GPL: Oval setups?

by Stephen Smit » Wed, 31 Jan 2001 05:13:10

Bad idea, Alan,

You should use TPs, not cambers, to reduce the rolling resistance.  Once you
get the camber optimized (the normal way--use GRE to equalize the temps
across each tread), raise the TP so that the center temp is 1-2 deg. higher
on the R side and 2-3 deg. higher on the L side.  You want plenty of camber
thrust on the ovals (higher G loadings), so if you're going to err, the L
side of each reading should be higher by a deg. or so than the R side

Monza).

The diff should also be completely open (85/85/1) to minimize rolling
resistance and kill the push.

You'll also want to run increased ride heights and springs stiff enough to
keep you off the bumpers (.5 in.)

The shocks should be stiffer on the L than the R.

Use the bars to move the roll couple aft so you don't o'heat the RF (you'll
probably wind up with a stiffer bar at the back).

Take two Goody's and call me in the morning.

--Steve Smith



> > I have just gotten an interest in some GPL oval racing.  Anyone have
some
> > good oval setups?  Everything I make either bottoms, overheats the
tires, or

you
> > have some.

> > Jesse Black

> A good tip for oval racing in gpl is to play with the camber at long
> tracks. Put the left side camber near max positive and right side near
> max negative. But the steering will pull to the left,ala N4. ;)
> With the camber at the extremes you lower the rolling resistance with
> less tire on the ground so you have higher top speeds, plus the car
> pulls itself through the corners. Just don't use too much camber on
> smaller tracks or you'll lose too much grip.

> Goodluck, Jesse.

> --
> Solo1 C-Modified (CASC-OR/BARC)
> http://www.barc-oc.com
> http://www.casc.on.ca

Ron Ayto

GPL: Oval setups?

by Ron Ayto » Wed, 31 Jan 2001 06:02:33

Sorry Stephen, i disagree with you here..
Alan is dead correct for Oval racing in GPL.
The high speed ovals in GPL, do not require the car to generate maximum
lateral traction, as the centrifugal downforce from the banking will
generate enough lateral traction on the high speed ovals in a GPL car.
Running too high a tire pressures on the Ovals in a GPL car is fine,
for novice length races, providing you don't push too hard, but for
anything over a novice length race, your tires  won't make the distance
if your being pressured from behind.
In F3/FG & F2/FD, if you don't set up a high speed oval car using high
levels of off-set camber, you will not even be close to competitive
with any one that knows how to set up an oval car in GPL.
F1 in GPL isn't quite as critical as the other classes, but it still
makes a huge difference to the rolling drag factor by off-setting
cambers.

Cheers,
Ron Ayton
Australia



Once you

Stephen Smit

GPL: Oval setups?

by Stephen Smit » Wed, 31 Jan 2001 11:03:06

Okay, Ron, you're faster than I am....

--Steve


> Sorry Stephen, i disagree with you here..
> Alan is dead correct for Oval racing in GPL.
> The high speed ovals in GPL, do not require the car to generate maximum
> lateral traction, as the centrifugal downforce from the banking will
> generate enough lateral traction on the high speed ovals in a GPL car.
> Running too high a tire pressures on the Ovals in a GPL car is fine,
> for novice length races, providing you don't push too hard, but for
> anything over a novice length race, your tires  won't make the distance
> if your being pressured from behind.
> In F3/FG & F2/FD, if you don't set up a high speed oval car using high
> levels of off-set camber, you will not even be close to competitive
> with any one that knows how to set up an oval car in GPL.
> F1 in GPL isn't quite as critical as the other classes, but it still
> makes a huge difference to the rolling drag factor by off-setting
> cambers.

> Cheers,
> Ron Ayton
> Australia



> > Bad idea, Alan,

> > You should use TPs, not cambers, to reduce the rolling resistance.
> Once you


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