Vehicle Specific Clutches

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Alcon Clutch Cover Assembly – 230mm 24.2mm x24

Alcon Clutch Cover Assembly – 230mm 24.2mm x24

The Group N and Heavy Duty clutch range from Alcon have been designed for specific vehicle applications for use where modified clutch units are not required or allowed due to regulations. These specific clutches are designed to conform to Group N specification which allows the use of uprated components but all within the confines of the original design. As a result, these clutch cover assemblies will bolt straight onto the existing flywheel of the particular vehicle application. This particular clutch cover assembly is for Ford Escort and Sierra Cosworth cars which are 240mm in diameter with a spline of 1" x 23. Alcon Clutches are designed and manufactured in house using the latest CAD and finite element analysis software which helps to optimise the performance of each clutch design in every area. One key feature of Alcon clutches is that they are designed to be fully interchangeable with other manufacturers products.Note: Clutch drive plates are not included in the cover assemblies but are available separately.   View more

$868.34

1 retailer

Girling Slave Cylinder For Hewland Transmission – Hewland FG Gearbox Left Hand Inlet

Girling Slave Cylinder For Hewland Transmission – Hewland FG Gearbox Left Hand Inlet

These Girling clutch slave cylinders are available to suit the Hewland FG, FT and Type 9 transmissions.0.875″ bore.View more

$91.72

1 retailer

Girling Slave Cylinder For Hewland Transmission – Hewland FT & Mk9 Gearbox Right Hand Inlet

Girling Slave Cylinder For Hewland Transmission – Hewland FT & Mk9 Gearbox Right Hand Inlet

These Girling clutch slave cylinders are available to suit the Hewland FG, FT and Type 9 transmissions.0.875″ bore.View more

$98.42

1 retailer

Helix 7.8 Inch Organic Sprung Drive Plate – 52.4mm x 32

Helix 7.8 Inch Organic Sprung Drive Plate – 52.4mm x 32

These 7.8 Inch organic drive plates from Helix feature a sprung centre design to provide protection from drive line shock, thus prolonging the life of the clutch and minimising the risk of failure. The springs are arranged radially around the centre of the hub which works in conjunction with the facing segments to provide a progressive engagement and and greater degree of clutch control. The plates are made with only the best quality organic friction material available.Available is a wide range of spline sizes to suit most applicationsNote: Image is for illustration purposes only, actual product may differ from that shown.View more

$84.18

1 retailer

Sachs High Performance Clutch Cover – Torque Rating 204 lb/ft (Organic Plate) / 296 lb/ft (Sintered Plate)

Sachs High Performance Clutch Cover – Torque Rating 204 lb/ft (Organic Plate) / 296 lb/ft (Sintered Plate)

When engines are tuned to make more power and torque the original clutch can often be pushed beyond its working limits and the result is the clutch slipping which means your extra power is not being utilised.These high performance clutch covers from Sachs are a direct replacement for an OEM clutch cover and offer a higher clamping force which enables them to transmit more power and torque especially when used in conjunction with a Sachs high performance clutch plate. This makes them perfect for use in tuned road cars or competition cars where regulations stipulate an original style clutch.When you select your vehicle you will see two different torque ratings. These are the torque ratings the clutch cover will handle when used with either a Sachs organic or sintered plate. A sintered plate will cope with higher torque levels because of the higher friction levels of the material.*Note-clutch plates are sold separately*View more

$302.54

1 retailer

Sachs High Performance Clutch Cover – Torque Rating 207 lb/ft (Organic Plate) / 296 lb/ft (Sintered Plate)

Sachs High Performance Clutch Cover – Torque Rating 207 lb/ft (Organic Plate) / 296 lb/ft (Sintered Plate)

When engines are tuned to make more power and torque the original clutch can often be pushed beyond its working limits and the result is the clutch slipping which means your extra power is not being utilised.These high performance clutch covers from Sachs are a direct replacement for an OEM clutch cover and offer a higher clamping force which enables them to transmit more power and torque especially when used in conjunction with a Sachs high performance clutch plate. This makes them perfect for use in tuned road cars or competition cars where regulations stipulate an original style clutch.When you select your vehicle you will see two different torque ratings. These are the torque ratings the clutch cover will handle when used with either a Sachs organic or sintered plate. A sintered plate will cope with higher torque levels because of the higher friction levels of the material.*Note-clutch plates are sold separately*View more

$342.80

1 retailer

Sachs High Performance Clutch Cover – Torque Rating 211 lb/ft (Organic Plate) / 307 lb/ft (Sintered Plate)

Sachs High Performance Clutch Cover – Torque Rating 211 lb/ft (Organic Plate) / 307 lb/ft (Sintered Plate)

When engines are tuned to make more power and torque the original clutch can often be pushed beyond its working limits and the result is the clutch slipping which means your extra power is not being utilised.These high performance clutch covers from Sachs are a direct replacement for an OEM clutch cover and offer a higher clamping force which enables them to transmit more power and torque especially when used in conjunction with a Sachs high performance clutch plate. This makes them perfect for use in tuned road cars or competition cars where regulations stipulate an original style clutch.When you select your vehicle you will see two different torque ratings. These are the torque ratings the clutch cover will handle when used with either a Sachs organic or sintered plate. A sintered plate will cope with higher torque levels because of the higher friction levels of the material.*Note-clutch plates are sold separately*View more

$328.17

1 retailer

Sachs High Performance Clutch Cover – Torque Rating 218 lb/ft (Organic Plate) / 318 lb/ft (Sintered Plate)

Sachs High Performance Clutch Cover – Torque Rating 218 lb/ft (Organic Plate) / 318 lb/ft (Sintered Plate)

When engines are tuned to make more power and torque the original clutch can often be pushed beyond its working limits and the result is the clutch slipping which means your extra power is not being utilised.These high performance clutch covers from Sachs are a direct replacement for an OEM clutch cover and offer a higher clamping force which enables them to transmit more power and torque especially when used in conjunction with a Sachs high performance clutch plate. This makes them perfect for use in tuned road cars or competition cars where regulations stipulate an original style clutch.When you select your vehicle you will see two different torque ratings. These are the torque ratings the clutch cover will handle when used with either a Sachs organic or sintered plate. A sintered plate will cope with higher torque levels because of the higher friction levels of the material.*Note-clutch plates are sold separately*View more

$487.97

1 retailer

Sachs High Performance Clutch Cover – Torque Rating 218 lb/ft (Organic Plate) / 322 lb/ft (Sintered Plate)

Sachs High Performance Clutch Cover – Torque Rating 218 lb/ft (Organic Plate) / 322 lb/ft (Sintered Plate)

When engines are tuned to make more power and torque the original clutch can often be pushed beyond its working limits and the result is the clutch slipping which means your extra power is not being utilised.These high performance clutch covers from Sachs are a direct replacement for an OEM clutch cover and offer a higher clamping force which enables them to transmit more power and torque especially when used in conjunction with a Sachs high performance clutch plate. This makes them perfect for use in tuned road cars or competition cars where regulations stipulate an original style clutch.When you select your vehicle you will see two different torque ratings. These are the torque ratings the clutch cover will handle when used with either a Sachs organic or sintered plate. A sintered plate will cope with higher torque levels because of the higher friction levels of the material.*Note-clutch plates are sold separately*View more

$352.55

1 retailer

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Clutches Designed for Vehicles

A clutch is a device used to engage or disengage motion between the driven and the driving shaft. It connects the shafts to ensure they spin at the same speed when locked together (engaged) and rotating in different speeds when unlocked (disengaged). A clutch is made up various components- the clutch disc, flywheel, diaphragm spring and pressure plate. The clutch disc is fitted between the pressure plate and flywheel and spins along with the transmission. A flywheel connects to the engine crankshaft and is the place where torque is transferred while the diaphragm spring rids of pressure from the clutch disc when the clutch pedal is pressed.
The spring uses a throw-out bearing to press against the disc, creating a gap between the flywheel and the pressure plate to allow the disc to rotate. A pressure plate, on the other hand, makes up the other side of the clutch disc. It is attached to the flywheel and spins along with the engine. The diaphragm spring is located here. The left pedal operates clutches for modern vehicles that have manual transmissions through a hydraulic connection from the pedal to the clutch mechanism. For older cars, however, the clutch is operated using a mechanical linkage. The proximity to the pedal helps reduce the effects of vibration and engine movement. Clutches are made for different mechanical devices- automobiles, motorcycles, agricultural equipment, tillers and lawn mowers, among other machines. The focus is on vehicle specific clutches in the next text.

Friction Clutches

Most vehicles use this kind of clutch, which is propelled by friction. It is operated hydraulically or using a cable and uses the clutch disc, pressure plate and release bearing to engage or disengage the transmission and the flywheel. Most vehicles have a simple single plate clutch while high-powered engines are fitted with multi-plate clutches to engage the transmission.
The operation of the friction mimics that of a basic clutch in that when the driver presses the clutch pedal, the release bearing applies pressure on the diaphragm spring located on the pressure plate. As a result, the pressure plate releases clamping pressure on the clutch plate and disengages the transmission from the flywheel. When the gear is changed and the clutch released, the bearing is released from the pressure plate, and the clutch plate is clamped to engage the transmission. Friction clutches are further classified into five groups based on function and number of plates on the clutch:

The Single Plate Clutch

Has one friction plate and pressure plate. The pressure from the springs allows the pressure plate to maintain contact between the friction plate and the flywheel.

Multi-plate clutch

Its construction mimics that of a single plate clutch, but it does not have pressure and friction plates. As such, slippage between the friction plates and the flywheel is eliminated to increase the efficiency of the clutch. Multi-plate clutches are used in racing vehicles like the WRC and Formula

Cone clutch

This kind does not have plates and uses male and female cone members to propel transmission. The male member is attached to the driven member while the female part is linked to the driving members. The periphery of the male member is layered with a friction lining, which allows the clutch to transfer higher torque than disc or plate clutches of similar sizes. Cone clutches are ideal for low peripheral speed applications, and automobiles like high-end racing cars, speedboats, drift cars and dragsters

Dual Clutch Transmissions

It also referred to as a double or twin-clutch transmission and is a form of automatic transmission. This transmission is known for providing smooth and quick changes and is found in supercars, saloons and hot hatches. DCTs are also used in automatic vehicles and feature two wet multi-plate clutches that rid of the need for a torque converter. It functions in place of two manual gearboxes using two clutches without a clutch pedal. Sophisticated hydraulics and electronics are used to control the clutches just as in standard transmission, but clutches for DCTs operate independently. One clutch manipulates the odd gears (1st, 3rd, 5th and reverse) and the other controls even gears (2nd, 4th and 6th gears). This arrangement allows the user to change gears without interrupting the flow of power from the engine to the transmission. DCTs were first used in VW Mk4 Golf R32 and have since dominated the premium car market.

How different flywheels improve your vehicles performance

Generally, the RPM of an engine changes based on the rotating weight of the flywheel. A heavier flywheel reduces the acceleration while a lighter flywheel increases the speed of the vehicle. It explains the three types of flywheels- the stock units for normal driving conditions, the light steel flywheels for street driving and the middle range for drag-racing and other high-performance applications.