CP8042 - Ø184mm Twin Plate 'I' Drive Cerametallic Paddle Clutch

Typical Applications:

• Race
• Hillclimb
• Rally
• Ford Fiesta R5 / Rally2

Features:

• Twin plate
• Push Type
• Lightweight version of CP8022-CH81-SF
• Stepped Flywheel Fixing 
  • Inner diameter location.
• 12 bolt, one piece cover and lugs
  • machined from aluminium alloy. Allows dust and debris to escape.
    
• Individually tested
  • match machined, balanced and clutch load recorded.
• Mounting studs available, CP4703

Part Numbers:

• Stepped Flywheel:
  • CP8042-CH81-SF
    

Technical Specifications [for Stepped Flywheel Clutch]:

Torque Capacity - Nm (lbs/ft)	CP8042-CH81-SF - 636 (469)
Release Load - Max Peak New - daN	CP8042-CH81-SF - 350
Release Load - Max Peak Worn - daN	CP8042-CH81-SF - 440
Set-up Height - New	CP8042-CH81-SF - 32.27 / 30.52mm
Set-up Height - Max Worn	CP8042-CH81-SF - 34.78mm
Clutch "Wear in"	0.75mm
Weight (Excluding Drive Plates)	2.00 Kg
Assembly Inertia (Excluding Drive Plates)	0.01238 Kg m²
Recommended Release Bearing	Outer race rotates: CP3457-2 Inner race rotates: CP3457-6
Drive Plate Options	New = 6.00mm  Worn = 5.63mm
	4-Paddle Bonded - CP8401 6-Paddle Bonded - CP8601
Spare Parts:
Main Pressure Plate	CP8042-101
Intermediate Pressure Plate:	CP8042-102

Applications

'I' Drive Technology

AP Racing has developed a new design of clutch. Whilst conventional clutch designs typically feature external ‘jaws’ around the outer edges of the steel intermediate and main pressure plates, which can distort trapping the legs of the aluminium cover and cause the clutch to drag.

The ‘I’ Drive design features drive tenons, which locate into internal jaws in the lightweight aluminium clutch cover, eradicating the onset of clutch drag.The ‘I’ Drive design has been proven via a program of extensive dyno tests which assessed durability in challenging conditions. During the test the ‘I’ Drive clutch maintained optimum performance under arduous operating conditions for significantly longer than the conventional clutch design. There research shows the new clutch design to be five times more durable when subjected to the same test parameters.
With up to 10% less mass than conventional clutches, and with 15% less rotational momentum, ‘I’ Drive design also features an innovative ‘wear plate’, to combat wear on the drive legs of the lightweight aluminium clutch cover, where they interact with the steel plates. This problem, common to all sintered clutches with aluminium covers, is reduced by the use of thick wear ‘pads’ held captive on the drive faces of each of the aluminium cover drive-legs, which provide robust wear surfaces.