As BhZ said, applying throttle is just a way of take a way around the problem.
I'm really interested in technical details so what happens if you apply throttle under braking:
- the brakes are slowing the wheels
- the throttle pulls against that, just on the rear wheels
-> your brake balance moves to the front and the brake "pressure" gets lowered. -> more grip at the rear (important: for the weight shift it doesn't matter if you are braking at the fronts or the rears! It only matters for the mohr's circle of grip!)
- Slightly before the brake is released completely, the front will still brake, while the rear is accelerating.
-> slightly "loaded" front wheels with weight a bit shifted to the rear -> more stable car with slight understeering!
- if you release the brake now, the rear will start to push forward instantaneous.
-> front wheels get light, rear gets loaded->more grip on the rear and more understeering
Well that's just the physic behind that. How it's perfectly explained? I don't know
I agree that it helps but I will just post my thoughts about why it's not the best way:
First a little picture about grip levels: If your "point" leaves the circle, you are sliding!
So braking OR accelerating = less grip for cornering. But "load" raises the pressure the rubber get's pressed to the track and therefore raises the grip limit.
In the end you just maintain more grip on the rear, so the car is slightly understeering. But the weight actually shifts more, since you switch between braking and accelerating, instead of braking and coasting.
How I think it would be better:
Modulating the brake! Don't just brake with a bit of throttle. Lift the brake slightly at the points the throttle would help. Not as easy as it sounds, I agree!
What I think is the main difference between the "really fast guys" and us average guys:
- of course the use of the track... But we are talking about the car
- we mere mortals are driving like that:
- BRAKE
- STEER
- LIFT BRAKE
- STEER MORE
- OH SH*T I'M SLIDING
- THROTTTTLLLEEEEEE!!!!
- the really fast guys are driving like that:
- slowing down
- slowing down a bit less to shift the weight for turn in
- turn in aggressively
- oooh, a bit more weight to the rear
- ah now turning perfectly tight
- oooh, the rear wants to step out
- weight shifting a bit to the rear to maintain grip
- and now dancing through the turn on the perfect grip limit
Of course that's completely exaggerated but it's like I think about it. Of course the really fast guys do that without thinking like that. They just feel it and have the experience.
So how to get to that: practice!!!! And not just doing lap after lap. Thinking about such things, trying different methods, TRY to feel that all and then you might actually feel it at some point
In my opinion someone doesn't have just "talent do be fast". They have the "talent to feel and process such information faster". If they do it actively or passively doesn't matter in the end.