OS RACING CLUTCH

Super Single

OS Giken Clutches

Through our research and development of high performance engines, we realized the need for the production of higher quality, more durable clutch systems to meet the rigorous demands of race and sport driving. Our OS multi-plate clutch is able to transmit engine revolutions and output to the drive train without loss. They are made of the highest quality materials and their durability is second to none. Our continual research and development has brought about many improvements since our multi-plate clutch line's original debut in 1983 and we are confident that our clutches can meet the demands of even the most heavily modified vehicles.

Super Single
Super Single

Distinctive Features of the OS Multi-Plate Clutch:

In spite of its decreased diameter, our clutch allows for extremely efficient power transfer and improved engine response. Our redesigned leverage mechanism of the diaphragm spring on the center cover results in higher pressure of the clutch disk while reducing pedal effort. In addition, ventilation holes are designed to reduce heat generated inside the clutch system and allows for the friction plate dust to exit outside the clutch system, thus increasing reliability and safety. All OS Giken clutches include a corresponding performance flywheel to ensure maximum performance and unlock your vehicle’s potential.

SUPERSINGLE CLUTCH

Our Super Single series make an ideal choice as a replacement to the original equipment clutch/flywheel and provide your vehicle with unparallel response and race performance. The Supersingle clutch design is a product of our cumulative knowledge and experience in developing and refining our Racing Multiplate Clutch line.

Super Single
NISSAN
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
Skyline R32, R33, HR31 Aluminum   4.90 10.90
RB25DET, RB25DE, RB25DET, RB20DE Pressed Steel   4.90 11.05
         
Skyline DR30 Aluminum   5.40 11.40
FJ20ET, FJ20E Pressed Steel   5.40 11.55
         
Skyline GC10 thru HR30 Aluminum   4.70 10.70
L6 Pressed Steel   4.70 10.85
         
Skyline PGC10, KPGC10, KPGC110 Aluminum   4.80 10.85
S20 Pressed Steel   4.80 10.95
         
Silvia S15 Aluminum 1 5.90 11.90
SR20DET Pressed Steel   5.90 12.05
* 8 Genuine Nissan fly wheel bolts (pn: 12315-30P01) are needed to install either of above.  
         
Silvia S14, PS13, RPS13 Aluminum   4.90 10.90
SR20DET, SR20DE Pressed Steel   4.90 11.05
         
Silvia S13, RS13 Aluminum   4.90 10.90
CA18DET, CA18DE Pressed Steel   4.90 11.05
         
Pulsar RNN14 Pressed Steel   5.10 11.25
SR20DET        
         
Fairlady Z33 Aluminum   6.45 12.45
VQ35DE (NEO) Pressed Steel   6.45 12.60
         
Fairlady S30 thru 130Z Aluminum   4.70 10.70
L6 Pressed Steel   4.70 10.85
         
Roadster SR311 Aluminum   4.80 10.80
U20 Pressed Steel   4.80 10.95
         
Bluebird H510, P510 Aluminum   4.70 10.70
L4 Pressed Steel   4.70 10.85
         
TOYOTA
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
Supra JZA70 Aluminum   4.90 10.90
1JZ-GTE Pressed Steel   4.90 11.05
         
Mark II Series JZX90, JZX100 Aluminum   4.90 10.90
1JZ-GTE Pressed Steel   4.90 11.05
         
Soarer JZZ30 Aluminum   4.90 10.90
1JZ-GTE Pressed Steel   4.90 11.05
         
Altezza SXE10 Aluminum 1 5.50 11.50
3S-G Pressed Steel   5.50 11.65
* 8 Genuine Nissan fly wheel bolts (pn: 12315-04U00) are needed to install either of above.      
         
MR-2 SW20 Pressed Steel   4.45 10.65
Celica ST185, ST205        
3S-GT        
         
MR-2 SW20(NA) Pressed Steel   5.50 11.65
Celica ST202        
3S-G        
* Super Strun Viscous LSD requipped models should use same clutch as Turbo models.      
         
MR-S ZZW30 Aluminum 4.80 10.05
(1ZZ-FED)        
         
Celica GT-S ZZT231 Aluminum 4.10 9.35
2ZZ-GE        
         
Levin, Trueno AE101, AE92, AE86 Pressed Steel 215mm 3, 2 4.10 9.35
4A-G Pressed Steel 204mm 3, 4 3.70 8.30
         
Levin, Trueno AE101, AE92 Pressed Steel 2 4.10 9.35
4A-GZ        
         
Levin, Trueno TE27 Aluminum   4.40 10.40
2T-G Pressed Steel   4.40 10.55
         
Starlet EP82, EP91 Pressed Steel 4 3.60 8.20
4E        
         
Vitz 1.5RS Pressed Steel 4 5.00 9.30
         
MAZDA
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
RX7 FC3S Aluminum 3 5.10 11.10
13BT Pressed Steel   5.10 11.25
* Genuine Mazda counter weight and 6 bolts are needed to install either of above.      
  Use genuine counter weight of pn: N327-11-521A, and bolts of pn: 8051-27-236 (or 8501-27-235) for chassis No. 0 thru 200000 (before minor
  change).        
  Use genuine counter weight of pn:N351-11-521, and bolts of pn:8051-27-236 (or 8501-27-235) for chassis No. 200001 and on (after minor change).
  OPTIONAL PARTS: Adjustable fork kit (returns release fork to the position with the spring)      
         
RX7 FD3S Aluminum   5.10 11.10
13BT Pressed Steel   5.10 11.25
* Genuine Mazda counter weight and 6 bolts are needed to install either of above.      
  Use geniune counter weight of part pn: N351-11-521 and bolts of pn: 8051-27-236 (or 8051-27-235)      
         
Roadstar NA6CE, NA8C Aluminum   4.20 10.20
B6, BP8 Pressed Steel   4.20 10.35
         
MITSUBISHI
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
Lancer Evolution I thru III CD9A, CE9A Pressed Steel   4.30 10.45
4G63        
Lancer Evolution IV thru IX CN9A, CP9A, CT9A Pressed Steel   4.20 10.35
4G63        
* Overhaul: When OS Clutch Release Movent Alteration kit that is produced in '00.4 or later is used, use genuine Mitsubishi inner kit; pn: MD977130
  (Kit was revised in '00.2). If your OS kit is produced before '00.1 and need overhaul, use genuine Mitsubishi inner kit; pn: MD997838.
       
SUBARU
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
Impreza GC8 Pressed Steel   5.15 11.30
EJ20        
         
HONDA
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
S2000 AP1 Aluminum   4.55 9.10
F20C Pressed Steel   4.55 9.30
         
Civic EG6, EK4, EK9 Pressed Steel 215mm 2 4.20 9.45
B16A (VTEC) Pressed Steel 204mm 4 4.00 8.30
         
Integra DC2 Pressed Steel 215mm 2 4.20 9.45
B18C (VTEC) Pressed Steel 204mm 4 4.00 8.60
         
BMW
Model/Engine Type Clutch Cover Material Notes: F/W (kgs.) Assy (kgs.)
E30        
M3 - 2.3L Aluminum 5.10 11.00
M3 - 2.5L Aluminum 5.10 11.00
         
E36        
318is - 2.0L Aluminum 7.50 13.50
318i - 2.0L Aluminum 7.50 13.50
         
OS Giken Note Key:
1 - Need genuine flywheel bolts.
2 - In order to improve engine response, diameter of the clutch is set at 215mm.
3 - Specify N/V and code of vehicle upon ordering. The kit can vary depending on the production period.
4 - In ordre to improve engine response the clutch disk is set at 204mm.