Direct Clutch Services RB Billet 9″ – Twin Plate Clutch Kit

$2,750.00

Description

Direct Clutch Services RB Billet 9″ – Twin Plate Clutch Kit

Like the 8″, the 9″ billet system can be customised to suit many larger engine and gearbox combination, utilizing a custom billet steel or aluminium flywheel. Being available in single, twin and triple plate configurations, the 8” unit can be tailored to your exact needs with a large range of friction materials, compounds, button arrangements, clamp ratings from 1500 – 4000lbs and so on. Made from the highest-grade materials which are Australia, Japan or USA sourced. 

  

Supplied as a clutch and flywheel assembly the Direct Clutch Services0 9″ billet system has proven to be a durable unit, in all rigorous applications and is usually an economical unit to rebuild when required. 

  

All the Direct Clutch Services billet single twin and triple plate units can be made to a specific target (assembly) weight. We are happy to advise / assist with this, but we suggest light weight for any constant high RPM application i.e., circuit, speedway, marine applications. We generally suggest the heavier the better for any street, drift, drag, and all 4×4. In recent times we have seen success in drag racing with the heavier (clutch and flywheel) assembly options. We have also seen gains in drifting with heavier flywheels being used. This generally sees the ability to turn the tyres at lower rpm clutch kicks as the engine is less likely to stall. We also see the heavier flywheel acting as a large(r) heat sink and allowing more heat to be absorbed into the flywheel before, thus initially taking heat away from the clutch. We have common assembly weights on file for most applications. 

  

The Direct Clutch Services 9″ billet twin plate clutch & flywheel assembly is the most frequently sold of all our billet clutch systems. Available most commonly in 3 series. This being street, competition and sintered series. 

  

9-inch Billet Twin Plate Series 

STREET SERIES: 

The street series is often sold with full face ceramic discs or 1 organic disc or 1 cushion ceramic disc and lower clamping force for smoother engagement and lighter pedal. 

  

COMPETITION SERIES: 

The competition series usually offered with a pair of ceramic discs and moderate clamp 

  

SINTERED IRON SERIES: 

Sintered iron series is for all out performance and a far greater range of heat capacity. The sintered iron clutch discs can withstand higher temps when compared to other clutch disc options.  

Available in various compounds and clamp settings rated in 9″ to 2000hp and fine for use in cars with anti-lag launch control and inline restrictors 

  

Build time: 

With components on hand to build to one several dozen popular combinations. Usual build time of 24hrs from time of order. 

  

Additional information – 9-inch billet clutch kits 

All Direct Clutch Services 9″ billet single, twin and triple plate units utilize solid / unsprung clutch hubs. This is done for 2 reasons. The unsprung disc is lighter allowing for faster shifts. The second is a sprung hub is usually a weak link in the system. 

  

In a back-to-back comparison, the spung hub only offers dampening to sound and offers very little in drive feel other than just reduction in engine / gearbox feedback / noise, contrary to common opinion in the automotive world. 

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