Modification of The Clutch Plate by Installing Sinter Buttons

Want to enjoy driving your car with a tuned engine, but the clutch gives you headaches?

We answer the question of how to avoid the mistake of choosing the wrong type of clutch, because it can be expensive.

Clutch plate slippage is a common problem that occurs only after engine upgrade (chipping, tuning). This is a problem that is not easy to solve, especially as an instant solution. Every development of a new car and its parts requires months of work and testing by top engineers in the field.

To make a completely new clutch specifically designed for your car would probably cost more than the car itself. Therefore, the only option is to test the offered solutions.

We have experience in solving such problems, and we will explain to you with examples what turned out well, what are the possible problems and how to solve the problem of clutch slippage.

Are expensive clutch kits a solution for you?

There are ready-made complete sports clutches that cost 1500-3500 €.

Price would not be an issue if it could be guaranteed that such a clutch would be good for your car. These are the clutches provided for race cars. Such clutches are not on the principle of “install and drive” but are required by a team of experts and mechanics who deal with installation and adjustment to your car.

A lot of people opt for such sports sets that consist of a cover and a clutch plate, the problem is that the set cannot be installed or the built-in sports set does not give satisfactory results. In such problems, the manufacturer is not obliged and does not give a guarantee due to the complexity of the whole project.

Najskuplja opcija nije garancija rješenja problema.

Clutch slippage problems and causes

  1. The clutch plate shakes:
    • uneven thickness of organic clutch facing
    • unstable or weak cylinder pressure on the basket
    • the hydraulic system is not irradiated
    • damaged or curved surface pressure plate or flywheel
    • for sinter clutch plate – small number of puck or curvature of the puck
  2. Rough clutch control:
    • for sinter clutch plate- a small number of puck
    • clutch plate without springs and fixed flywheel
    • a clutch cover upgraded with a double Japanese hat
  3. Higher consumption and wear of the pressure plate of the clutch cover or flywheel:
    • small number of puck on sinter clutch
  4. The clutch plate slips even though it is a strong friction material (the lamella sands):
    • low clutch cover pressure

Clutch slip solutions

In terms of car power, you need to determine what kind of clutch plate and clutch cover you need.

Types of materials for modification and how to choose the right one

The first thing you should start with is the clutch plate, ie the strength of the friction material that can withstand such a load.

Our suggestion regarding the power of the engine is to start from the recommended material according to the power because there can be problems due to improper operation of the lamella.

  1. For cars up to 160 hp – Rewiss classic organic lining
    • Clutch facing with exceptional wear resistance and high temperatures
    • 15 components ensure excellent friction without damaging the pressure plate and flywheel
    • The material is connected with braided fibers, which ensures great compactness of the lining
    • An important component are copper threads that serve for better temperature distribution
  2. For cars up to 240 hp – Rewiss extended organic lining
    • Unlike the Rewiss classic, it contains a higher concentration of copper threads, which leads to a better temperature distribution at high loads.
  3. For cars over 240 hp – Bronze sinter MIBA Austria
    • Due to its performance, sintered bronze is used in all situations where very high resistance to wear and temperature is required.
    • If it is not intended for racing and special conditions, we recommend placing as many puck as possible (6-8).

To date, we have done modifications of all kinds of lamellas, mostly for cars between 300 and 550 hp, and our biggest project was a truck for street races from Canada of 1600 hp.

Is the modification possible only from new clutch plates?

– The change of organic lining, as well as the modification in the sinter clutch plate can be done on both the old and the new clutch. So you don’t need to buy a new clutch plate.

Kevlar clutch or Syntex clutch is a great choice of material for heavy loads, but good clutch cover pressure is very important. It must be a sports clutch, because if there are minor slips, it will be used up in a very short time. That is why we recommend it only for clutch cover with good pressure.

How to choose good clutch cover

In addition to the type of friction material, stable and strong clutch cover pressure is important for maximum efficiency.

If you have a cover with low pressure, we offer you some of the following solutions:

  1. Self-adjusting clutch cover – LUK, Valeo, Sachs

LUK, Valeo or Sachs self-adjusting clutch covers are much stronger than ordinary ones. You can buy a new self-adjusting clutch cover, but if you have an old one (Luk and Valeo), they are just as good. In case you have an old self-adjusting clutch cover, it must be adjusted and sanded.
Adjusting and grinding of clutch cover is a regular service in our workshop.

  1. Enhanced new Performance Clutch Cover- available on the market

If there is no self-adjusting basket for your car, we recommend that you look for Performance Clutch Cover. These are special covers that are designed for more powerful engines. They are usually 15-40% stronger than standard.

  1. Modification of an ordinary basket by changing the angle of the Japanese hat (diaphragm)

Due to the complexity of the design, it is not recommended, but it still solves the problem. This procedure requires extensive experience and expertise. Putting on double Japanese hats (diaphragms) or adding spring sheets that connect the case and the pressure plate do not give good results. The clutch is much harder and rougher, and the increase in pressure is very small, often insufficient.

Prices of clutch plate modifications

When we see what kind of engine tune it is and what use it is for, we will give you the best suggestion with what kind of clutch plate we could solve your problem of clutch slippage.

  1. For cars up to 160 hp organic coating Rewiss classic – €25-€60 + VAT
  2. For cars up to 240 hp organic coating Rewiss extended – €50-€120 + VAT
  3. For cars over 240 hp Sinter bronze MIBA Austria – €125–€300 + VAT

Prices depend on the dimensions of the clutch plate and the dimensions of the lining, as well as the number of sinter puck and the type of plate for modification.

– We also do sinter transfer on already modified clutch plates or original sinter clutchs.

For all information and questions you can contact us by e-mail: rewissclutch@gmail.com

Ordering process

  1. Send a photo of the clutch plate and engine boost details (how much horsepower it has and how much it had before boost, and which basket you would use) on email rewissclutch@gmail.com
  2. After consultation and price offer, you can send your clutch to our address
  3. Production takes from 1 to 10 days, depending on what is being done (organic linings or sinter buttons). We will let you know when the lamella is finished.
  4. Payment options: we can send you an offer, so you can pay via bank transfer. We accept payments on both Revolut and payment cards.