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Namn: Stefan G
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Postat: 2007-09-11, 18:57
Japan brake method

On all the movies from internet with japan racing i saw a very interesting brake method: it seems that it hit the brake , hit the throttle and also downshift in the same time. For those who didn't see this , HERE is a movie with this method(5:19-6:00 min of the movie). Who knows if there are some benefits of this, please post!
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Postat: 2007-09-11, 19:29
To get the tail out.
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Postat: 2007-09-11, 19:39
Citat:
Ursprungligen postat av azathoth
To get the tail out.
Do you mean to start drifting or what?
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Postat: 2007-09-11, 20:22
I don't think it has anything to do with tail out or drifting, check out the NSX from this video how it brakes!!
Speedshaq är inte uppkopplad   #4 Svara med citat
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Postat: 2007-09-11, 22:00
I think this is getting confused as one move, when its probably two together


They are entering a corner using left foot braking which most top racers do and then they are shifting down a gear to either slow down more with engine braking or to set it up to exit the corner. The only reason it looks odd is because they are not braking with the right foot.

Most cars will shift down without the clutch at the right time

what azathoth meant was a move called 'shift lock'
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Postat: 2007-09-11, 23:01
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Ursprungligen postat av Johnathan


They are entering a corner using left foot braking which most top racers do and then they are shifting down a gear to either slow down more with engine braking or to set it up to exit the corner.
No, it's not this. They brake with right foot, but at the same time they hit the throttle! The only explication is that they maintein high rev on the engine. This is what i think, someone with some serious track experience could explain it more exactly.
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Postat: 2007-09-11, 23:35
They hit the throttle to put up the revs, when shifting down the gears.
So when you shift from 3 to 2 for example:
you hit the clutch when doing 2000rpm.... throttle it to 3500rpm... release clutch in 2nd gear, and the rpm stays that.
If you don't do it, the rpm will jump from below 2000rpm, till 3500rpm when you release the clutch.
It's for putting less stress on the clutch and gearbox.

I hope that explains a bit.

They don't use it only in Japan. Here in Belgium for example the rally Porsche GT3's also must do it.

PS: I have no track experience, but i tryed a lot of things ;)
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Postat: 2007-09-12, 09:24
its to keep the revs up to exit a corner

end of.
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Anthon är inte uppkopplad   #8 Svara med citat
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Postat: 2007-09-12, 09:28
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Ursprungligen postat av Don Kamiel
They hit the throttle to put up the revs, when shifting down the gears.
So when you shift from 3 to 2 for example:
you hit the clutch when doing 2000rpm.... throttle it to 3500rpm... release clutch in 2nd gear, and the rpm stays that.
If you don't do it, the rpm will jump from below 2000rpm, till 3500rpm when you release the clutch.
It's for putting less stress on the clutch and gearbox.

I hope that explains a bit.

They don't use it only in Japan. Here in Belgium for example the rally Porsche GT3's also must do it.

PS: I have no track experience, but i tryed a lot of things ;)
This is also what i think(see the message above), but you got to have a lot of experience to do this!!
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Postat: 2007-09-12, 22:48
Another benefit is avoiding shift lock, matching engine speed to that of the drive train.
This technique is called "heel-toe"
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UFO är inte uppkopplad   #10 Svara med citat
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Postat: 2007-09-12, 22:52
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Ursprungligen postat av UFO
Another benefit is avoiding shift lock, matching engine speed to that of the drive train.
This technique is called "heel-toe"

yeah thats exactly what i was trying to illustrate :)



then again i did not watch them all the way through and so seem to have missed what they are all reffering to
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Postat: 2007-09-13, 00:10
Citat:
Ursprungligen postat av UFO
Another benefit is avoiding shift lock, matching engine speed to that of the drive train.
This technique is called "heel-toe"
Still, a lot of experience is needed to do a "heel-toe"!
Speedshaq är inte uppkopplad   #12 Svara med citat
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Postat: 2007-09-13, 01:47
I agree with that too!

I have tried this with varying results. Mostly left foot braking my foot thinks its the clutch and slams the brakes on .. heel-toe is difficult but by far the better way for real driving!
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Johnathan är inte uppkopplad   #13 Svara med citat
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Postat: 2007-09-13, 08:38
It just takes practicing.
I "heel toe" everyday :)
But still find it pretty difficult on track. Not the actuall heel toeing, but sometimes i fail to keep a constant braking power.

Some cars are eaiser than others to do this in too.
My Silvia and Skyline is pretty easy as the pedals are at the same height.

In my Volkswagen, you have to be a ballet dancer. The throttle is positioned lower than the brake, so I can't reach the throttle with my heel :(
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90hk klubben är inte uppkopplad   #14 Svara med citat
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Postat: 2007-09-13, 09:17
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In my Volkswagen, you have to be a ballet dancer. The throttle is positioned lower than the brake, so I can't reach the throttle with my heel :(
Well, this is available to all "normal" cars, throttle is lower than the brake; anyway this method is usefull on a track if you can do it.

btw. i'll try do it my self, in my Gallardo. Wait to see the results.
Speedshaq är inte uppkopplad   #15 Svara med citat

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