Different Culture's Behavior Patterns in Metropolitan Areas

Shifting Gears: Cars with Manual Transmission

Nothing is more rewarding to a race car driver than the sweet sound of that perfectly timed blip of the gas pedal, effortlessly matching the revs to the wheel speed, and downshifting crisply in to the preceding gear using manual transmission. It’s the sound of true professional. For most amateurs shifting using manual transmission marks the moment when their right hand is searching franticly for a gear, their feet are totally confused by the tasks being asked of them, and the gearbox sounds like it blow up like a caravan top gear.
When downshifting in a car using a manual transmission, we must first depress the clutch pedal to disengage the gears, move the gear stick into the lower gear, and release the clutch pedal to re-engage the gears. Sounds simple enough, but the issue we have is when pressing the clutch of a manual transmission the engine revs drop to idle. When releasing the clutch pedal we need the revs to match our engine speed, which let’s say is 4000rpm, for example. So we must manually blip the throttle to 4000rpm just as we release the clutch pedal to ensure our engine revs match our wheel speed. If you get this wrong the car receives a nasty jolt as the unmatched components coincide and, in all likelihood, the wheels will lock momentarily. On a rear wheel drive car under-braking, this can produce an embarrassing smoky pirouette. So we need to blip the gas in the middle of the shift. How we do that is, with our right foot firmly on the brake, roll the outside portion of that foot onto the left edge of the throttle pedal and give it a blip.
In my experienced back when I used to race here in Philippines, most of the drag racers are using short shift to reduce the time between the changing of gears while accelerating and decelerating for improving car performance. Some major car manufacturers such as Subaru, Mazda, and Porsche offer short shifters as stock modifications. Most drag cars using manual transmission are shifted manually by the driver, and there is a right time on shifting that varies with each car. Typically, power will increase as the engine RPMs (Revolution per minute) increase, but only up to a point before the power begins to taper off. The ideal time to shift is when the descending power curve for the lower gear crosses the ascending power curve for the higher gear.
Manual Transmission isn’t that easy but once you have the technique down, the next part is getting the blip just right. It needs to be the correct amount and at precisely the right time. If you blip too much, the engine will have too much speed compared to the wheels and that nasty jolt will occur when you release the clutch. If you didn’t blip hard enough, the engine speed will be too low and you face a potential lockup. Blip too soon and the revs will have returned back to idle by the time you have released the clutch and all effort will have been for nothing.

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