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-   -   Stijn!! (http://forums.pelicanparts.com/showthread.php?t=488213)

svandamme 01-02-2012 01:11 PM

Schumacher also displays the better throttle control, he keeps his throttle at midlevel for certain times, rather then WOT and lift like Barrichello does, obviously Barri has to lift completely cause his foot isn't even on the pedal anymore.
but even when they are both off the brake, Barry is not keeping his throttle halfway, Schumacher does keep his throttle at 40 even, or 60 even %..
Even his brake pedal control is much better, Barry does a stick and jab, while schumacher can dose it properly.



Odd that Barri doesn't left foot brake , he started off as a karting champ too, just like Schumacher
I can only think that he never figured out the pedal dancing once he left Karting and got an extra pedal to deal with.

Amongst other situations, i tend to have my left foot on my brake when i pass known speed traps. It gives me that extra bit of response time if i spot 50 on the center divider wit their little flashing camera.
I'll also use it in the snow

I've had the windschield experience too, that's what i'm saying, it's not the left foot on the pedal that's difficult, it's the dancing around from pedal to pedal and sharing the middle one with 2 feet.

Last thing you want is an E-brake situation, and 2 feet that both point at the other one going "your turn!" or both feet getting in the way of eachother on the way to that pedal..

porsche4life 01-02-2012 01:14 PM

Sorry stijn, I've been in the pickup and out of cell service....

Who said anything about left foot throttle???

My 944 pedals are just like they came stock, and Ive gotten pretty salty at the heel-toe under braking.

svandamme 01-02-2012 01:16 PM

well you said you can't practice throttle control in a kart cause the pedals are seperated.
Why would that matter considering that most people only use the right foot for the gas pedal?

porsche4life 01-02-2012 01:20 PM

Pedal position and throttle control were two seperate thoughts. I just don't see a kart as good left foot braking practice, it's the only brake choice you've got, it's what you will naturally use....

And I just don't think there is enough range in the throttle on most rental carts to give a good feel to get really good at throttle control.

svandamme 01-02-2012 01:28 PM

well it's the lack of range that makes for good practice .
The less travel, the more precise you gotta be.

And if you only got one pedal, you learn to dose your left foot, with the heel to the floor as opposed to the thigh muscles like the stick said.
And obviously it won't teach you pedal dancing, but that's pedal dancing, not left foot braking.
As has been said, left foot braking isn't difficult , it's the pedal dancing that is difficult to figure out.. That's another ability , besides left foot braking.

slodave 01-02-2012 02:13 PM

Quote:

My first car as a teenager was an automatic transmissioned MBZ. So after I got my license, I decided to left-foot brake 'cause I figured it would lead to a faster reaction time (and because that's how the some race car drivers did it, I read). So I naturally left-foot brake in an auto car. It's not that hard to pick up. But I haven't really done it in a manual-tranny car, yet.
And that scares the crap out of me. Very dangerous. One of the first off road excursions I took as a passenger, was because the kid drove with two feet.

RKDinOKC 01-02-2012 02:28 PM

At the time the comparison between Schumacher and Barrichello was done, Barrichello was the only one even coming close to beating Micheal, and did on a few tracks despite his lack of left foot braking.

RKDinOKC 01-02-2012 02:48 PM

Have you ever watched a video of Ayrton Senna's pedal work. That guy pumped the throttle all the way thru a corner, on off on off on off.

vas930 01-02-2012 03:05 PM

+1 for left foot braking.
Racing karts for ten years as a young boy it is all I know.
Stick gives some good reasons why its a good system.

In a kart its not the same as a car.
To drive a kart fast, the brake is a fast stab to set the rear end up for the corner.
!00% brake or 100% throttle, no grey area.
Karting is the best driver training you can do.

In a car you have gears, so the transition is slower.
I feel the same principals apply, apart from the gears.
I dont feel that its a great advantage to left foot brake in a car with gears/clutch.
Even though I do it.
Without a clutch, then left foot is a must. ( karts, F1)

If you have a turbo, do what you can to keep it on boost.
Stick likes to trail brake.
I like to brake hard and apply the throttle early to time max boost with the apex.
Whatever floats your boat.

GH85Carrera 01-02-2012 03:17 PM

The only cart I drove much was the one my brother & I built from scrap steel and a discarded lawn mower. We had no welding available and no adult supervision. Heck we used the wheels from a golf bag pull along for steering. The throttle was a pair of vice grips that you had to use your left hand to pull down so you only had your right hand to steer.

Oh, and the only brakes were the version used by the Flintstones. It is amazing we survived the thing. It was still fun. :D

GH85Carrera 01-02-2012 03:20 PM

That go cart was advanced design compared to the "motorcycle" we build with a lawn mower engine and a bicycle frame. We put over 2,000 miles on that two wheel contraption on the cane roads and pineapple roads in Hawaii. We went place no white boys had ever seen before.

Flieger 01-02-2012 03:23 PM

I take it your father was in the military? (Hawaii -> now Oklahoma)

GH85Carrera 01-02-2012 03:28 PM

Good evening guys.

I am ready to go to work tomorrow so I can relax. It has been a busy but productive long weekend. All three cars are clean and purdy. The 911 is locked and under the car cover in it's corner of the garage. I got to drive it long enough to get the engine all warmed up and be able to check the oil level.

GH85Carrera 01-02-2012 03:30 PM

Quote:

Originally Posted by Flieger (Post 6468678)
I take it your father was in the military? (Hawaii -> now Oklahoma)

Yep, he was an Air Force pilot. We had two tours in Hawaii. 1958 to 1962 & 1967 to 1971. We also did San Marcos Texas, and Montgomery Alabama.

Flieger 01-02-2012 03:34 PM

Cool, what did he fly?

nynor 01-02-2012 03:39 PM

i've tried the heel/toe technique in my car. unfortunately, the pedal height is not setup well for this.

Outback Porsche 01-02-2012 03:56 PM

G'day

porsche4life 01-02-2012 04:08 PM

It's not too bad with a smooth soled pair of shoes like pilotis.

GH85Carrera 01-02-2012 04:14 PM

My dad was flying cargo. Early days he was in C-124 then C-47s. He was expecting to fly the C-5a when he was grounded for health issues.

vas930 01-02-2012 04:23 PM

Quote:

Originally Posted by nynor (Post 6468725)
i've tried the heel/toe technique in my car. unfortunately, the pedal height is not setup well for this.

I know what you mean.

You can buy the pedal with the wide lower section.
This may help, D.

nynor 01-02-2012 04:34 PM

Quote:

Originally Posted by porsche4life (Post 6468778)
It's not too bad with a smooth soled pair of shoes like pilotis.

which pedal gets the heel and which gets the toe?

nynor 01-02-2012 04:35 PM

Quote:

Originally Posted by vas930 (Post 6468802)
I know what you mean.

You can buy the pedal with the wide lower section.
This may help, D.

pelican sells the nice rennline pedals.

vas930 01-02-2012 04:49 PM

Quote:

Originally Posted by nynor (Post 6468813)
which pedal gets the heel and which gets the toe?

Heel to throttle.
Toe to brake.

slodave 01-02-2012 04:54 PM

Quote:

It's not too bad with a smooth soled pair of shoes like pilotis.
It's nearly impossible to on the 911, without modding the pedals.

vas930 01-02-2012 04:54 PM

Quote:

Originally Posted by nynor (Post 6468816)
pelican sells the nice rennline pedals.

Yes, they are nice.

For hard driving I found the gear stick to low.
I just made it 100mm longer.
Its now nice and high like a race car.
It feels nice and has closed the gap between steering wheel and gear stick. :)

vas930 01-02-2012 04:56 PM

Quote:

Originally Posted by slodave (Post 6468873)
It's nearly impossible to on the 911, without modding the pedals.

and hard on the ankle. :confused:

Noah930 01-02-2012 05:08 PM

I find it very difficult to heel-toe in a 911. And I've heel-toed in my daily drivers (Nissan and a Honda) for the past 15+ years. The stock 911 pedals are "hinged funny" and unless you mash on the brake, that pedal never depresses far enough that it's easy to roll your right ankle to blip the throttle with your heel (or whatever part of the foot reaches there) to get the job done smoothly. On the street, where you really shouldn't be threshold braking regularly anyway, I find it near impossible.

Noah930 01-02-2012 05:15 PM

Quote:

Originally Posted by slodave (Post 6468532)
And that scares the crap out of me. Very dangerous. One of the first off road excursions I took as a passenger, was because the kid drove with two feet.

C'mon, Dave, am I that dangerous of a driver? How many accidents (or even face-to-the-windshield events) have I had in my entire driving career related to mixing up of pedals? Granted I wasn't there, but I submit that off road excursion you experienced was due more to driving ineptitude than anything else. Certainly using two feet for two pedals can set one up for driving misadventures, but so can not knowing what one's doing behind the wheel, regardless the pedal situation.

slodave 01-02-2012 05:23 PM

I don't trust people who drive with two feet. Half the time they ride their brakes and you can't tell what they are doing.

nynor 01-02-2012 05:32 PM

Quote:

Originally Posted by RKDinOKC (Post 6468612)
Have you ever watched a video of Ayrton Senna's pedal work. That guy pumped the throttle all the way thru a corner, on off on off on off.

yep. i wonder what the purpose of pumping the gas is.

<iframe width="420" height="315" src="http://www.youtube.com/embed/8By2AEsGAhU" frameborder="0" allowfullscreen></iframe>

RKDinOKC 01-02-2012 05:33 PM

Heel toe is just a name, it is NOT actually heel on one pedal and toe on the other. Your heel should be planted on the FLOOR. You position your foot and leg so as to place the center of the ball of your foot on the upper right corner of the brake pedal when braking. To operate the throttle you rock your foot to the right so the side of your foot operates the accelerator. If your foot is centered on the edge of the brake pedal it is surprising just how far you can rock your foot over to operate the accelerator.

Most models of Porsche have some sort of adjustment for the forward/back placement of either the accelerator or brake. I was thinking of moving the 928 accelerator pedal back just a bit as I sometimes hit the throttle unintentionally under hard braking.

I used to drive in leather loafers, there was a hole in the sole in the middle of the ball of the foot where the brake pedal fit nicely.

Noah930 01-02-2012 05:35 PM

You don't trust me?! http://forums.pelicanparts.com/suppo...leys/smi10.gif

Noah930 01-02-2012 05:39 PM

Heel-toe came about because cars originally had the throttle and brake pedals reversed. That is, the throttle was on the left and the brake was on the right. So when racing, you could externally rotate your right leg and apply the toes to the brake while blipping the throttle with the heel of your foot. But that's 1920's or 1930's era cars, IIRC.

Somewhere along the way the throttle pedal moved to the right and the brake pedal sat on the left. It's still called heel-and-toe, but you have to contort your leg much more to make it work smoothly.

Porsche-poor 01-02-2012 05:40 PM

Quote:

Originally Posted by slodave (Post 6468930)
I don't trust people who drive with two feet. Half the time they ride their brakes and you can't tell what they are doing.

It has been few months since I drove my 911time but I used both feet its not an automatic.....maybe that's why I'm so slow.

RKDinOKC 01-02-2012 05:40 PM

Those look just like the leather loafers I used to wear driving!!! Notice the placement of his foot on the edge of the brake pedal.

The commentary I heard when they were talking about the difference between Schumacher and Senna was that he used the pedal pumping to keep the car at the limit. Notice, no left foot braking. On the telemetry thing it looked like Barrichello did similar pumping through the corner.

RKDinOKC 01-02-2012 05:42 PM

Actually, in the books I've read they describe early race cars having the brake and throttle one on top of the other so you really did operate one with your heel and the other with your toe.

nynor 01-02-2012 05:44 PM

Quote:

Originally Posted by RKDinOKC (Post 6468958)
Heel toe is just a name, it is NOT actually heel on one pedal and toe on the other. Your heel should be planted on the FLOOR. You position your foot and leg so as to place the center of the ball of your foot on the upper right corner of the brake pedal when braking. To operate the throttle you rock your foot to the right so the side of your foot operates the accelerator. If your foot is centered on the edge of the brake pedal it is surprising just how far you can rock your foot over to operate the accelerator.

Most models of Porsche have some sort of adjustment for the forward/back placement of either the accelerator or brake. I was thinking of moving the 928 accelerator pedal back just a bit as I sometimes hit the throttle unintentionally under hard braking.

I used to drive in leather loafers, there was a hole in the sole in the middle of the ball of the foot where the brake pedal fit nicely.

this is similar to how i drive already. i think i just need a bit of practice.

RKDinOKC 01-02-2012 05:44 PM

I would suggest learning to heel/toe with loafers like in the Senna video. The thin leather soles give you a lot better feel of where your foot is at than tennis or even todays driving shoes with their rubber soles.

RKDinOKC 01-02-2012 06:08 PM

Tried to find a good pedal dance video, but couldn't find anyone left foot braking that was using the clutch pedal. No wonder I keep hearing all that transmission whine in the current racing videos!

GH85Carrera 01-02-2012 06:38 PM

Howdy guys. My heel & toe it usually limited to blipping the throttle to help match RPMs for easy shifting with a 915 transmission.


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