OS Giken - R4C Aluminum Cover Quad Plate w/Center Hub (BNR32 & BCNR33) (AQPCH012)

R4C 215MM, Aluminum Cover, Quad Plate Clutch w/ center hub . Pressure on cover 10700N-m (1100kgf/m)

Fits: BNR32 & BCNR33

Attention!!! BNR32's before minor change(May '93) require OS sleeve assembly

Attention!!! BNR32's after minor change (May '93) and BCNR33's require OS movement alteration kit

For the most extreme drag racing applications, while still retaining street drivability, the OS Giken R4C clutch is unbeatable. Power handling is well in excess of 1000hp. In fact, it has been tested in drag cars with over 1200hp with no slip apparent. However, due to the multi-plate design, it is still surprisingly drivable for street applications, retaining the same clamping force as the R3C design.

Like the R3C it uses a lightweight chrome-moly flywheel, gold-anodised billet aluminium clutch cover and the necessary bearing/carrier set or pull-push converter kit as required.

Power handling capacity varies according to the specific model. As a general guide A-size clutches are recommended for up to 450hp, B-size for up to 550hp and C-size for up to 650hp, however power handling will vary up or down depending on the torque characteristics of your engine. Please contact us to check if these clutches will suit your application.

In the OS lineup (TS, TR, R) have the release sleeve assy /move alt kit sold separately. In most cases, an OS release sleeve is necessary for use with an OS clutch. The bearing face is tapered to provide maximum surface contact with the clutch fingers, for less pedal pressure. In some cases, the OEM throwout bearing can be used, but typically this results in the pedal pressure becoming very high.