Erwan <[email hidden]> wrote in message
news:L7Xn5.678$[email hidden]...
> I watch some replays of GPL best hotlapers and i remark something:
> They use quite the same trajectories of me, etc but their lap time are
> a lot better than me.
> ( Ex: My best lap in Kyalami (since yesterday) is 1'25''68 and in Spa,it's
> 3'31''25. )
> But when they brakes, it's like they use "carbons brakes" because their
> brakes are a lot "stronger" than mine. At every braking point, they push
> the brake pedal approximatily 1 full second later than me.
> But me, if i do that, i go every time in the wall. So, what is theirsecret ??
> Can you advise me some very good setups where the brakes are good ?
The secret is in the setup. Set 5 clutches and 85/45 diff (85/30 works too)
then put the bias more to the rear and then hey presto you can brake much
much later. Try Greger Huttu's setups at
http://www.kolumbus.fi/ghuttu/
Some Call Me Tim
I watch some replays of GPL best hotlapers and i remark something:
They use quite the same trajectories of me, etc but their lap time are
a lot better than me.
( Ex: My best lap in Kyalami (since yesterday) is 1'25''68 and in Spa, it's
3'31''25. )
But when they brakes, it's like they use "carbons brakes" because their
brakes are a lot "stronger" than mine. At every braking point, they push
the brake pedal approximatily 1 full second later than me.
But me, if i do that, i go every time in the wall. So, what is their secret ??
Can you advise me some very good setups where the brakes are good ?
> The secret is in the setup. Set 5 clutches and 85/45 diff (85/30 workstoo)
> then put the bias more to the rear and then hey presto you can brake much
> much later. Try Greger Huttu's setups at
>
> http://www.kolumbus.fi/ghuttu/
No.
The secret is not in the setup. If it where, then we all would be Huttus by
now.
Huttu uses 45/60 ramp angles, and 51 pst brake balance. For most of us that
is a very certain way of spinning out in every turn.
The reason these guys can brake later than most of us is extreme throttle
and brake control. With rear biased brakes, you'll need to apply the
accelerator to stabilize the car. Otherwise, you'll spin after a couple of
seconds of braking.
I've watched Huttu's 7.48 lap at the Ring. My jaw fell down on my chest.
This guy seems to accelerate with the brake, and brake with the accelerator.
There was no locking up, and no wheel spin, in spite of using lower gear
than I do. How does he do that? Answer: By using the brakes when
accelerating (anti spin control) and by braking with the accelerator
(pressing the brake down while changing the brake balance real time by using
the accelerator). And, of course, trailbraking (braking while turning).
Huttu's setups aren't too good for newbies, IMO. I've found that Nunnini's
setups are far more forgiving. Too bad his site has shut down.
You don't need 51 pst brake balance and 45/60 ramp angles to be fast.
Newbies are better off using 85/xx and 57 pst brake balance. It is quite
possible to be competitive with such settings. But most importantly: 85/xx
ant 57 pst are easier to drive, thus giving you more consistency, which is
very important when trying to win a race. If you can't finish the race, you
can't win.
Happy GPL-ing.
Jon Andersen
In article <9OXn5.9169$[email hidden]>, "Some Call Me Tim"
<[email hidden]> writes:
That's not always the 'magic bullet'. Even *with* Huttu's setup, I have to
brake much earlier than he does... :( And according to Replay Analyzer, I'm
hitting the brakes just as hard. Ponderous...
Eldred
--
Tiger Stadium R.I.P. 1912-1999
Homepage - http://www.umich.edu/~epickett
GPL hcp. +51.31
Never argue with an idiot. He brings you down to his level, then beats you
with experience...
Remove SPAM-OFF to reply.
Quoted text (13 lines)
>> But when they brakes, it's like they use "carbons brakes" because their >> brakes are a lot "stronger" than mine. At every braking point, they push >> the brake pedal approximatily 1 full second later than me. >> But me, if i do that, i go every time in the wall. So, what is their >secret ?? >> Can you advise me some very good setups where the brakes are good ? > >The secret is in the setup. Set 5 clutches and 85/45 diff (85/30 works too) >then put the bias more to the rear and then hey presto you can brake much >much later. Try Greger Huttu's setups at > >http://www.kolumbus.fi/ghuttu/ >
In my view the following ingredients are needed for 'the perfect brake':
a) a brake bias such that all wheels are used equally. A bias of 55% or higher
makes it easier to keep the car in a straight line while braking, but that is
because to back-tires are used less. Changing to 52% or even lower will balance
the breaking better, but the rear of your car is more likely to break out.
b) temperature of your tires
Warm but not too hot. On cold tires you're doomed, but tires that are overheated
also have less braking capability. Overheating often occurs on your front tires
when you slide a lot in an understeered setup. Driving smooth lines, and using a
balanced setup, can prevent this.
c) correct tire pressure
When your tires are too hard or too soft you do not have an optimal contact
area. Either the middle (tires too soft) or the edges of your tires (tires too
hard) are not used optimally.
In practice mode, during a lap quickly jump back to the pits using <esc>
followed by <enter> and check you tire temps. The temps should be almost equal
for you inner, middle and outer side of each tire.
d) camber!
Setups of hotlappers often have camber-settings so that a wheel has best contact
while taking a corner. This reduces braking capability in a straight line, but a
hotlapper is able to make up for this in the corners (whereas people like you
and me cannot).
e) no locking!
Wheels that lock up have almost no breaking power, but you already knew that.
f) still breaking while already turning in (trail braking)
Very difficult, but not impossible (I still cannot do this reliably).
I personally like Greger Huttu's setups: http://www.kolumbus.fi/ghuttu/
To make them easier to drive, you may:
- put brake bias more to the front (say from 52% to 55%)
- change the ramp angles from (e.g.) 60/30 to 85/45
And of course: practice, practice, practice, practice, practice. And then some!
On Sun, 20 Aug 2000 16:48:32 +0200, "Erwan" <[email hidden]>
wrote:
