How to ease the flywheel with your own hands: features, benefits and feedback

Today, there are many ways to increase the engine's power. Fans of speed and drive often decide to facilitate the flywheel. Let's see what advantages can be obtained from such a replacement, what features are available for this process and whether it is possible to carry out the process of facilitating by hand in the garage.

About the regular element

No matter how the motorists swear among themselves on the forum, the flywheel is an accurate and perfectly verified detail. At the design engineers carefully calculated the load, the resistance to torsion and to scrap. The weight of the standard flywheel on most cars (with the exception of buses and trucks, as well as special equipment) is in the range of seven to nine kilograms. The exact mass depends on the particular model of the machine and its class. After starting the engine, the ordinary flywheel starts to gain kinetic energy due to the operation of the pistons, the injection and exhaust system, and also the rotation of the crankshaft. When the power unit is running, some of the energy is wasted on the untwisting and rotation of the heavy flywheel. The more mass of this metal disk, the more energy it will require to spin it. Especially these costs are noticeable at high revs (from 4500 rpm).

From all this, it turns out that the flywheel prevents the engine from working, taking away part of the power. But here is not so simple. Due to its mass, the flywheel takes unnecessary energy, which is produced by detonation or other side processes. So, these processes do not go to the body in the form of vibrations, but are absorbed by the flywheel.

Lightweight element

Its principle is quite simple. People's specialists in tuning DVS, and some tuning studio banally remove some of its weight. For example, with a standard flywheel installed on most VAZ cars, you can clean up to 3.5 kilograms. The weight of the standard element is 7.5. A lightweight flywheel, on VAZ installed, will be the news of 4 kilograms, which is quite significant. It should be noted that today there are many varieties of flywheels on sale. You can lighten the part from 1.5 to 3.5 kilograms. Different specialists explain this in their own way, but the essence here is one - an increase in the dynamic characteristics. The question will be justified: "Why can not the flywheel be lightened, say, up to 1 kg, or even make it so in the factory?". Everything is simple - too light a detail will be unstable and corny will break. Elementary forces act on the element. And with too little weight, he will not stand work at high loads.

This element must have a certain strength limit, which allows working in standard modes.

Benefits of relief

Let's see what the lightweight flywheel can give, on the VAZ-2107 being installed. After the relief process, the part loses weight, which means that the engine will have to spend less energy on the process of promotion.

In this way, mechanical losses can be reduced. The unwinding of the flywheel requires less energy, correspondingly, the output of the power unit will increase. The lighter flywheel has less inertia. The motor will be faster to gain high and maximum speed. And in general, work at high speed will be better. All this is true if we carefully calculate the forces of inertia, as well as the effect of centrifugal force. After comparing with the values on a standard flywheel, it becomes clear that for a lightweight part there is really much less cost. But it is at high speeds that the regular flywheel experiences excessive loads from the effects of centrifugal force and inertia.

disadvantages

The first thing to be said is that one flywheel relief will not be enough. It is also necessary to correctly adjust the remaining engine parts. It will be necessary to facilitate both a cranked shaft, correctly to adjust a centering of a basket of coupling.

Among the disadvantages can be noted the reduction in structural strength, the absence of any visible effect at low engine speeds. It is also necessary to additionally perform balancing with the crankshaft and belt pulley of the generator. The flywheel, which has lost weight, will be weaker to conduct heat - in winter the transmission will require more time to warm up at idle. And finally, the cost of the flywheel is much higher, especially if it is taken into account that it is a factory lightweight flywheel for "Priora" from a well-known manufacturer, and not made in garage conditions by an artisanal method. If the car is purchased for a standard city ride up to 3000 rpm, the effect of relief will be almost invisible. If the machine is operated more extreme (at a speed of more than 4500 per minute), the advantages of a lightweight flywheel will be noticeable.

Is it possible to make it easy with your own hands?

As a basis, standard flywheels are used, which are then facilitated by cutting off excess. Often, parts are removed on the outer radius of the part. With the help of cutting the grooves you can remove from one and a half to two kilograms of weight. At the same time, the strength characteristics of the flywheel itself and its crown are not violated. You can ease the flywheel and more, lifting three or more pounds. But this option will already lose its strength.

Sometimes there are elements where the crown is welded by welding to what's left of the flywheel after relief. But this can not be done - strength is markedly reduced.

How to reduce the weight of the flywheel with your own hands?

It is necessary to find a turner, but beforehand print the drawing of Singurindi. Weight loss by this technology is the safest. This is confirmed by experience - this technology was used by many. For example, the standard weight of the classic flywheel from VAZ is about 7 kilograms. With the help of the Singurindi technology, it is possible to reduce the mass of the part to 4.8 kilograms, but the wall on which the fixing holes are located should have a thickness of 10 millimeters. You can take more. Then the wall thickness will be 8 millimeters. The weight is about 4.5 kg. To relieve is not worth it any more.

For the mounting bolt, which is used to install a clutch basket, 8 mm in diameter, you need a body with an equal diameter. If the flywheel wall is smaller, this can cause it to burst at high speeds. It is better not to risk and immediately purchase a ready lightweight flywheel. The price of it depends on the model of the car. So, flywheels on the WHA stand from 2.5 thousand rubles. They are already balanced. In this way, it is possible to alleviate absolutely any element. But it is important to take into account the strength characteristics and features. If you need to add strength, then at your own risk and welded a crown with the help of welding.

At the end of the procedure, the new flywheel must be balanced with the clutch basket. You do not need to install the disks. Balancing can be performed even statically. Further, balancing with the crankshaft is performed. This is necessary to ensure the stability of the engine.

It is also desirable to carry out dynamic balancing. But for this, specialized equipment is needed, which is not available at every service station or even in a machine building enterprise.

How do I perform static balancing?

The process is simple, but its accuracy is low. However, this is better than installing the part without any balancing. This operation is carried out by installing a lightweight flywheel VAZ-2110 on two supports. As supports, the corners that have smooth edges are quite suitable. They are exposed strictly horizontally and carefully verified the situation. In the center of the flywheel set a smooth shaft, which is better to order from the turner. Further the design is put on the exposed corners. Flywheel rotate and notice which part of it is at the bottom. If this is the same place, then on the opposite side a weight is attached to the flywheel.

Conclusion

Thus, it is possible to increase the dynamic characteristics of the car. The engine will be better to gain momentum. But this operation must necessarily be carried out in conjunction with another engine tuning.