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AP Competition Clutches

AP Racing Competition Products

For many years AP Racing has been a world leader in the design and manufacture of competition clutch systems.  And although they manufacture five other diameters (115mm, 127mm, 140mm, 200mm, 215mm) in cerametallic or sintered drive disks, the following information is about their most popular and historically copied, 184mm (7-1/4") sintered disk assembly. 
In our opinion, for single disc clutch users wanting long term worry free usage, the smaller 140mm (5.5") which some engine builders want you to buy, will not hold up (no mater the manufacture) as well as the 184mm assembly.  

AP 7-1/4" Racing Clutch, A-Ring and Black Magic Lug style
Left  A-Ring Type, Center  Lug Type, Right  Sintered Disc.

Push type release - The most popular type of diaphragm spring clutch where the release bearing is pushed against the diaphragm spring fingers (i.e. towards the flywheel) to release the clutch.

CP2116-"A" Ring, Steel Cover with drive plates, weight 3.1kg (6.8lb)

  CP2116-CRV CP2116-ORA * CP2116-GRN
Torque Cap. (Max) 425Nm(313lb/ft) 280Nm(207lb/ft) 195Nm(144lb/ft)
Release Load, Max  worn 347 daN 222 daN 154 daN
Complete assy. inertia (kgm2) 0.018 0.018 0.018
Set-Up Height New in mm 23.44 / 21.20 23.72 / 21.47 23.72 / 21.50
*Our most requested of the three
  • Adapter ring clutch-ring machined from aluminum alloy
    6 Bolt Cover
    Normal Duty
    Low Wear Rate
    Individually Tested, Balanced, Clutch Load and Function

 

CP7371-"Lug" type machined alloy cover with drive plates, weight 2.7kg (5.95lb)

  CP7371-NE90-SF CP7371-OE90-SF * CP7371-CE90-SF
Torque Cap. (Max) 219Nm(161lb/ft) 312Nm(230lb/ft) 475Nm(350lb/ft)
Release Load, Max worn 154 daN 222 daN 347 daN
Complete assy. inertia (kgm2) 0.0155 0.0155 0.0155
Set-Up Height New in mm 26.2 / 23.94 24.77 / 22.47 23.93 / 21.65

 

  • One piece Machined Lug Drive Cover
  • 6 Bolt Cover
  • Normal Duty
  • Low Wear Rate
  • Lower Weight
  • Individually Tested, Balanced, Clutch Load and Function

CP2012 Driven Plates 
For Single or Back to Back (twin) Applications

Sintered Driven Plate

  • A thin layer of metallic friction material which is sintered directly onto a steel disc.
  • Primarily used in race applications
  • Compact installation
  • Low inertia
  • Lightweight

 

Driven Plate Thickness 

  • New  2.63mm (.103")Nom
  • Worn 1.88mm (.74")Min.

CP2012-165FM3 - 1"X23 spline
CP2012-166FM3 - 7/8"X20 spline
CP2012-199FM3 - 29mm X10 spline
CP2012-171FM3 - 1 5/32"X26 spline

Upgrade your ******* brand, single disc 184mm clutch, with the proven performance of  an AP Racing clutch assembly and sintered driven disc.

Maintenance

  • Regular inspection and maintenance is essential to maintain optimum clutch performance. Excessive heat generation (often witnessed by discoloration of steel pressure plates) due to prolonged or repeated slip can result in loss of diaphragm spring load as well as driven plate damage. In such cases the clutch should be replaced. Pressure plate working faces should be checked for flatness using a straight edge and feeler gauge. 'Out of flat" pressure plates or driven plates can result in difficulties releasing the clutch and consequently drag. Pressure plates should be replaced when worn, or more than 0.10mm (0.004") out of flat.
  • Replace driven plates if there are signs of damage or when thickness has been reduced to the figures given for each individual clutch. 

For other AP Racing clutches or sub assemblies, contact our sales department for assistance.

 

Paul Knight relies on AP clutch components on his 1994 FC Van Dieman

 

 

 

Copyright 2016 Averill Racing Stuff, Inc.
Madison Heights Michigan
Phone 248-585-9139  Fax 248-585-9242