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Message: <blockquote data-quote="Tohsan" data-source="post: 2129215" data-attributes="member: 6705">BVlearn from Lao Tze ma and as a dad.Btw here's something i dig from website:Heel-and-toe is a driving technique used in performance driving[1]. It involves operating the throttle and brake pedals simultaneously with the right foot, while facilitating normal activation of the clutch with the left foot. It is used when braking and downshifting simultaneously (like when going around a turn), and allows the driver to "blip" the throttle to raise the engine speed and smoothly engage the lower gear.ProcedureWhen a driver performs a heel-and-toe downshift, he will first use the ball of his right foot to depress the brake pedal and slow the car down sufficiently. When the car is in appropriate speed, he fully depresses the clutch pedal, cutting the power from the engine to the gearbox. Should a double clutch be performed, the driver instead shifts to neutral.After that, the driver uses the heel of his right foot to momentally operate the throttle, increasing the engine rpm to match the required rpm for the selected gear. After that, the clutch pedal is released (or directly shifted into the correct gear from neutral during a double clutch shifting), and the engine is again connected to the gearbox.Finally, the driver places the right foot back onto the accelerator, releasing the brakes.[edit]UsageHeel-and-toe is used before entry into a turn while a vehicle is under braking, preparing the transmission to be in the optimal gear to accelerate out of the turn. One benefit of downshifting before entering a turn is a jolt to the drivetrain, or any other unwanted dynamics, will not upset the vehicle as badly when going in a straight line; the same jolt while turning may upset the vehicle enough to cause loss of control if it occurs after the turn is begun. Another benefit is "heel-and-toeing" allows you to downshift at the last moment before entering the turn, after you have started braking and the car has slowed, so the engine speed when the lower gear is engaged will not be too high.Performance vehicles are usually modified (if necessary) so that the heights of the brake and accelerator pedals are closely matched to permit easy use of heel-and-toe, and that the pedals are not too far apart.The name, stemming from earlier automotive designs where the accelerator pedal was on the left and could be actuated with the heel while the brake pedal was actuated with the toe, is misleading regarding how the technique is carried out in modern cars, i.e., operating the brake with the left edge of the foot, while rocking it down and to the right to operate the throttle. With practice, it becomes possible to smoothly and independently operate both pedals with one foot. The technique is common in all forms of motorsport, especially rallying.[edit]NoteAn unrelated technique, called left-foot braking should not be confused with heel-and-toe.Left-foot brakingeft-foot braking is the technique of using the left foot to operate the brake pedal in an automobile, leaving the right foot dedicated to the throttle pedal. It contrasts with the normal practice of the left foot operating the clutch pedal, and the right foot operating the brake and accelerator pedals.At its most basic purpose, left-foot braking can be used to decrease the time spent between the right foot moving between the brake and throttle pedals. It can also be used to control load transfer.However, the technique is strongly discouraged in driving on public roads as it gives no benefits and can be dangerous depending on the situation.Racing and rallyingKarts, many open wheelers, and some modern road cars (such as the Enzo Ferrari), have no foot-operated clutch, and so allow the driver to use their left foot to brake.One common race situation that requires left-foot braking is when a racer is cornering under power. If the driver doesn't want to lift off the throttle, and potentially cause a trailing-throttle oversteer situation, left-foot braking can induce a mild oversteer situation, and help the car "tuck," or turn-in better. Mild left-foot braking can also help cure an understeer situation.In rallying left-foot braking is very beneficial [1] especially to front-wheel drive vehicles [2]. It is closely related to the handbrake turn, but involves locking the rear wheels using the foot brake, which is set up to apply a significant pressure bias to the rear brakes. The vehicle is balanced using engine power by use of the accelerator pedal, operated by the right foot. The left foot is thus brought into play to operate the brake. It is not as necessary to use this technique with Rear-wheel drive and All_wheel_drive rally vehicles because they can be easily turned rapidly by using excess power to the wheels and the use of opposite lock steering, however the technique is still beneficial when the driver needs to decelerate and slide at the same time.Swedish rally legend Stig Blomqvist is considered to be the inventor of left-foot braking, developing it while driving for the SAAB works team in the 60's and 70's.When left foot braking is used to apply the brake and the throttle at the same time it is very hard on the car, causing extra wear on the transmission and brakes in particular[3].This technique should not be confused with Heel-and-Toe, another driving technique.[edit]Road useThis practice is not recommended while driving on public roads. [4][5][6]Instead, drivers are advised to use the right foot for both acceleration and braking. The primary reason for this is that there is never any situation in a car with an automatic transmission where it is safe or necessary to apply both brake and throttle at the same time. Using one foot for both ensures that the driver can only operate one pedal.Additionally, in emergency braking situations, it is common for the driver to extend both legs in a panic reaction. If the right foot is on the throttle, this will cause unwanted and potentially dangerous acceleration.Most manufacturers of cars with automatic transmissions provide the car with a rest for the driver's left foot so the right foot may be used exclusively for throttle and braking.Also, when the left foot is often used for depressing the clutch pedal this generally requires more force than operating the brake. A driver accustomed to applying this amount of force may unexpectedly slow down to an unsafe speed when attempting to use the left-foot braking technique.Using the left foot for braking can also cause confusion when switching to or from a vehicle with a manual transmission because of the differing roles of the left foot. [7]In addition, many modern vehicles use a "Drive By Wire" or Electronic throttle control system instead of the traditional mechanical throttle linkage. These systems have a safety interlock that prevents left foot braking. The car's ECU can detect when both pedals are pressed simultaneously and will immediately cut the engine power for safety reasons. An example is all modern Volkswagen and Audi Group vehicles.</blockquote>

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i just did my ground cable... share share

hi all sifu sifu....

yesterday i just install my ground cable....
first is that my car is old..
so originally.. if open lights.. the rpm will drop a bit..
but then.. after i install ground cable, also same.. :(
dono...