Quote:
Originally Posted by Want.FR-S
Thanks for the explanation. Now, can you teach me what the proper way to slow down during red-light: imagine if you are driving 40 mph on the road in 5 gear, probably 2500 to 3000 rpm, and you see the red light in front of you. So you press brake to slow down. Then, what is next?
Thanks.
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Hold on sport, you're not on the brake yet. Push in the clutch, hit the gas to rev-match for 2nd gear (probably 5500RPM or so) while selecting 2nd gear, let out the clutch. If you rev-match right, there will be no perceptible driveline shock. If there is, don't worry about it. Clutches can handle a little abuse and we all had to learn someday.
Let off the gas completely. The car will be slowing down by itself because of the vacuum being generated in the pistons. This is called engine braking (truckers: jerk braking). As you approach the red-light, supplement with your brake to slow down. Just before your car would start jerking ("engine overloading") shift into neutral and come to a complete stop.
Heel-and-toe means you can combine the downshifting and braking into the same maneuver. While you clutch and hit the gas to downshift, you already start the braking with your toes. That way you can throw in a smooth series of shifts (5 -> 4 -> 3 -> 2) while braking. Keeps you from having to rev the motor so high.