hi guys any leftfoot braking experts on here how could it help with rally or track driving many thanks

 

There are lots of rumors about left foot braking but also a few good facts. Nearly all guys coming from open wheel racing use LFBraking. This could simply be because most of them come from a karting background which requires it. Many of those guys say that it is faster since you can be quicker between the throttle and brake pedals but there is NO PROOF this is true. I have seen both types of brakers actually beat the data acquisition computers going between the pedals! The rally guys (and some AWD guys) on the track do see some benefit from LFBraking but it is marginal since true performance-oriented AWD cars have a near 50% brake bias, basically removing any of that "slowing the front wheels" or "unlocking the diff" stuff that I've heard guys toss out there. The only diffs (to my knowledge) that will benefit from LFBraking are active units. The '05-on Evos all have programming in their ACD system to adjust the center diff when the brakes are on with some throttle.

The BIGGEST advantage to LFBraking is on boosted cars. You can actually get the turbo spooled up a bit earlier by "brake boosting" through the last half of the corner. This will give you a touch more torque early on, in theory. This is only usually useful in cars with big turbos and is often so difficult to pull off smoothly that its usually best to just keep it simple. It was started in the rally scene before the antilag days and now it is general practice.

The truth is that I have seen some of the best drivers in the world use both techniques and none can give a positive answer why their way is better and neither can the data.

 

The LFB help me handle the car better and keep my boost up a same time, on loose surface or harder surface.
Since i do not have ALS i have to use this boost holding Technic.
For me the car feel much more balanced and instant power on loose surface. Also because the instant power; help me to rotate the car way much better, also i have always extra power if i needed.
One thing though , it kills the break rotors and pads .

So you have to be smart with that, you dont want to sacrifice too much on the breaks, they might fade later on the stage.

Rob

 

its not a bad read for you to as a start:
http://www.rallyfan.ru/driving/lfb/lfb_eng.php

in rally :

this is what he talk about on the picture
" A: Normally, just before a corner you must get the car to drift slightly - and I mean slightly; I am very strictly against oversteering cars, which are going to much sideways. So by putting full power on before the corner you have it drifting slightly, with the tail out a little."



i know i know , im a show off, but i couldn't resist

peace Rob

 

I never LFBed when I was racing my RWD Spec Miata on a road course. With a low-powered momentum car like a Spec Miata, you keep braking to an absolute minimum. A couple of months ago, I drove a rented FWD car at a rally driver school and the only way I could get that thing to rotate without plowing through the corners was by LFBing. It worked great.

So I guess it depends on the car and the application. I might be road racing a FWD car next season and expect that I'll be LFBing.