As rally racing evolved over the years, everything else evolved with it. Same as cars, roads, tracks, and drivers had to keep up with the pace of change, so did the driving method. In fact, there are several different driving methods used in rally racing today.
Before the transmission synchronizers were introduced back in 1920’s, double clutching was necessary in order to prevent damage to the automobile’s gear system. Being a complicated way of changing gears that required a lot time to get a hang on, it was abandoned in general use.
The purpose in using this technique is to aid to match the speeds of the rotational speed of the input shaft and the rotation of the automobile’s gear system. When these two speeds are matched, the selected gear engages very smoothly, if not the dog teeth on the collar will clash together and grate, as they are trying to fit in to the holes on the selected gear.
Modern synchromesh gearboxes achieve this automatically and efficiently.
So, basically, this technique is necessary for vehicles with an unsynchronized manual transmission. It is executed by pushing the clutch once for shifting into the neutral transmission, before pushing it again in order to engage the selected speed.
This is a very dangerous stunt, used to deliberately slide a car sideways. It is done in order to quickly negotiate a very tight bend, or to turn around well within the vehicle’s turning circle.
The physics around this stunt is relatively simple, if fact. When you do a normal turn with your car, your front wheels dictate the direction and the rear wheels follow, because resistance is in the forward direction. When you lock your rear wheels with a handbrake, both directions have the same resistance. This results in the rear end of your car moving in its original direction by inertia, and thus sliding out.
This technique is primarily used to negotiate turns in motorsports, but is also used in stunt driving (like in the movies) or by police during pursuit.
Used by drivers in all types of driving, but mostly in performance driving, heel-and-toe’s purpose is to prepare the car’s transmission to be in the optimal rpm range in order for your car to accelerate out of a turn in the best, smoothest possible way.
Effectiveness is the focus of this technique, as it involves operating your throttle and brake pedals with only your right foot, while pushing the clutch with your left foot as per usual.
When you brake, prior to entering a turn, and you downshift simultaneously, this allows you to blip the throttle and raise your speed, smoothly engaging the lower gear.
As the title explains it, this technique revolves around accelerating the vehicle just as it is about to approach a top of a hill, causing it to go airborne.
This is obviously an extremely dangerous stunt, also called ‘hill topping’ or ‘yumping’.
These stunts do take place in rally races often, but not to the extent of being too dangerous. However, it is useful to note that even the smallest jumps can be dangerous, if not to your health than certainly to the longevity of your car.
This technique revolves around using your left foot to operate both the clutch and the brake pedals, leaving the right foot on the throttle pedal all the time.
While there is little point in doing this in everyday driving, rally drivers use this to minimize the time spent moving your foot from throttle to brake. This is believed to maximize the momentum of your car, decrease the mini-pause intervals that are inevitable if you move your right foot, and also to increase the focus and the habit of controlling your throttle better, because your right foot is on it all the time.
This technique is also called the Finish flick, Manji drifting, and the pendulum turn, and it is used in ice racing and rallying.
This technique is quite delicate and requires high skill in its execution.
When a racer is approaching a turn, he is to drive along the inside of the turn, and then, just as the turn is coming along, he is to release the throttle and lightly press the brake, while steering sharply towards the outside of the turn. This manner will cause such a weight transfer that it will result in your car rotating into the corner of the turn, with your car’s front facing the exit of the turn.
If executed properly, your car will be in an ideal position to exit the turn and will lose little momentum.