How fast to let off clutch




















This is a skill that takes some people a lifetime to master. It's called 'dumping' the clutch and it's not particularly healthy for the clutch system and assembly as the flywheel and disc can go through pre-mature wear and tear. This plays into 1. Maybe this is why people love to row their own gears because it's a never ending journey to perfectly shift Type Rocket Senior Member.

At this stage, try for smoothness not speed. This will cause less stress and damage to your drivetrain and make you a better driver in the long run. As others have said, the speed will come. I always started my kids off in a level parking lot and had them learn to get moving from a stop in first gear without using any throttle. This will teach you how to engage the clutch smoothly and slowly. You can even shift into second and then back down to first with no throttle too. Once you have this mastered, you can add a little throttle to the routine, and finally hill starts.

Practice, practice, practice, preferably in a low or no traffic area. OzCop Member. Zeffy94 Senior Member. I still get them sometimes Other times I can get up to speed smoothly. But yeah like everyone else said..

As the seat time increases I feel more comfortable shifting and knowing it will be smooth. I did notice that a lot of manual tutorial videos are focused on getting started, and rightfully so, but what never seems to be explained in depth is changing gears. Like how long are you supposed to keep the clutch after choosing gears, do you pause at the bite point and add gas or add gas then release, etc.

Zeffy94 said:. Swank Senior Member. OzCop said:. You will destroy the clutch disc lining. Very well could be the clutch delay valve giving you grief. I'm convinced that's my issue but too busy at the moment to remove it. I like the idea of a clutch delay valve but it interferes too much preventing smooth fast shifting. It's also possible that I just suck but I've never had so hard a time getting smooth fast shifts from a car and I believe this is the first car I've had with a CDV I think.

Lust Senior Member. Once you develop the muscle memory of getting to the clutch biting point, you'll be able to shift smoothly. I suggest you watch how he shifts in the "Moderate Lauch" video. That's how you should really be shifting in your day to day driving. Post by six » Fri Sep 08, pm Yet again someone watching the "Aggressive" video and saying he releases the clutch fast.

He only releases it that fast in the "Aggressive" video and the "Putting it All Together 2" video. In the other videos, he releases the clutch at a "normal" speed.

I dump shift like Greg does in the Aggressive video all the time and it is smooth. The reason his shifts weren't smooth is because he was striving for speed, so he did not wait for the revs to drop. If you wait for the revs to drop, you could dump the clutch no problem.

However, keep in mind that I dump shift to make up for the clutch lost during my launches. I suggest you shift the normal way. Post by Prodigal Son » Fri Sep 08, pm A couple of things about the speed of clutch release: 1. In the total throw distance of the clutch, only about an inch of that distance is really critical for clutch timing.

An experineced driver gets to that one inch almost immediately, and once past that one inch, get off rapidly. It's what you do in that one inch between first contact and full engagement of the clutch and the flywheel that matters. As a beginner, or a driver in an unfamiliar car, you don't have an instinct for finding that one inch, and so you make the whole clutch release slow. There is no cure for this but time and practice. The time it takes to get smoothly through that one inch is determined by the current RPM and the amount of torque available.

The higher the RPM, the longer engagment takes, since there is a wider speed gap to synchronize. The higher the torque, the faster you can engage, since the engine has enough power to move the car without being forced below stall speed. See the connundrum here? Speed of release is proportional to torque and inversely proportional to RPM. But torque and RPM are largely proportional to one another. So, a no-gas start has a slow engagment because the torque is too low and you have to feed the power slowly to avoid lugging the engine.

A high-power start has a slow engagement because the RPMs are high and it takes a long time to sync the clutch and flywheel. In between these two extremes is the sweet spot in which the torque is just enough to get the car going, but the RPMs are low enough that it does not take to long to sychronize the clutch and flywheel. Find that sweet spot, and you can launch in under a second. These two factors, knowing where the critical part of the clutch travel is, and knowing the sweet spot for their car, allow an experineced driver to launch quickly and effortlessly.

But if you try to emulate their speed and miss either sweet spot by even a little, you will buck or stall. There is no cure but time. As to technique, I am a firm believer in the separation of gas and clutch. Don't start to feed gas until the clutch is hooked up -- this just prolongs the engagement and actually slows your acceleration. The common argument going the other way is that having your car in gear allows you to move right away if needed.

Protect your clutch. A common habit people have is to feather the clutch pedal tap it repeatedly so they can avoid rolling down a hill. This wears out your friction material and thus, your clutch. The Bottom Line: There are ways to avoid rolling down a hill without holding the clutch in. This one is a bit surprising. The weight of your hand can actually cause the parts responsible for gear shifting to rub together. After a while, this actually rubs them down. This will cause your car to jump out of gear and, quite frankly, that sucks.

Your car thinks is should be relaxing, while your foot is telling it to step on it. It stresses the engine out, which will eventually lead to the need for repairs.



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