OS RACING CLUTCH

Racing Multi-Plate

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.

Racing Multi-Plate
Racing Multi-Plate

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.

RACING MULTIPLATE

TS2AD, TS2B, TS2CD and TS3CW are our new OS Racing Clutch series and their friction plates are made of heat treated metal. These materials are carefully selected and alloyed so that the plates match with the materials of the flywheel and center plate to improve durability and maximize performance.

The TS2A and the TS2B are our longest selling models and have established a bulletproof reputation for performance and durability on the racetrack time and again.

The R series are revised versions s of the TS2AS and TS2BD. They are specifically designed for large single turbo charged engines found in many of today's racing cars.

Racing Multi-Plate
OS Multi-Plate Clutch Reference Chart and Example
Example of OS Giken Multi-Plate Clutch Part Number: Item Description Reference
1 Type of clutch cover
TS - Pressed steel cover
TR - Billet aluminum
R - Billet aluminum for center hub
plate
STR - Billet Aluminum
2 Number of Plates
1 - Single Plate
2 - Twin Plate
3 - Triple Plate
4 - Quadruple Plate
3 Diameter of Plates
A - 184mm
B - 204mm
C - 215mm
4 Remarks
D - Spring Damper
W - Heavier Fly Wheel
S - Single type diaphragm spring
NISSAN
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
Skyline GTR BNR34 R3C 6.10 15.55
RB26DETT R4C 6.10 17.35
* OS Clutch Release Movement Alteration Kit is required for installation    
       
Skyline GTR BCNR33, BNR32 TS2B 6.40 12.80
RB26DETT TS2BD 6.20 13.35
  TS2CD 6.80 14.50
  TS3B 6.40 14.45
  TS3BW 9.95 18.00
  R3C 4.90 14.35
  R4C 4.90 16.15
* R32 models before minor change need release bearing and release sleeve specified below:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release sleeve: Nissan 30501-K0401 for TS2B.    
  Nissan 30501-U0200 (or 30501-A6801) for TS2(B/C)D. Nissan 30501-A6801 (or U0200) for TS3B.    
  Nissan 30501-N1600 for R3C. Nissan 30501-B6000 for R4C.    
* R32 midels after minor change (equipped with pull type clutch mechanism; May '93 or later) and R33    
  models will need OS Clutch Release Movement Alternation Kit to install any of the above.    
  OPTIONAL PARTS: Hardened Pivot for R32 models before minor change    
  Adjustable Fork kit      
Skyline  R31, R32, R33 TS2B 6.40 12.80
RB25DET, RB20 TS2BD 6.20 13.35
  TS2CD 6.80 14.50
  TS3B 6.40 14.45
  TS3BW 9.95 18.00
  R3C 4.90 14.35
  R4C 4.90 16.15
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release Bearing: OS00-0011 or Nissan 30502-14601. Release sleeve: Nissan 305-K0401 for TS2B.    
  Nissan 30501-U0200 (or 30501-A66801) for TS2(B/C)D. Nissan 30501-A6801 (or U0200) for TS3B.    
  Nissan 30501-N1600 for R3C. Nissan 30501-B6000 for R4C.    
  Optional Parts: Adjustable fork kit    
Skyline DR30 TS2B 5.90 12.30
FJ20ET TS2BD 6.20 13.35
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2B. Nissan 30501-U0200 (or 30501-A6801) for TS2BD    
Skyline HR30 thru GC10 TS2A 4.70 9.80
L6 TS2AD 4.60 10.40
  TS2B 5.90 12.30
  TS2BD 6.10 13.25
  TS3A 4.70 11.10
  TS3B 5.90 13.95
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2(A/B). Nissan 30501-U0200 (or 30501-A6801) for TS2(A/B) or TS3(A/B).    
Fairlady Z33 TS2BD 7.65 14.80
VQ35DE (NEO)      
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-B6000    
Fairlady Z33 TR2CD 8.15 16.30
VQ35HR R3C 8.50 18.15
* Requires an OS Giken release sleeve assembly cover,    
  and must be used together with the Nissan OEM release bearing assembly(sold separately)    
Fairlady Z32 TS2CD 7.30 14.90
VG30DETT TR2CD 7.30 15.45
  TS3B 7.00 15.05
  TS3BW 10.30 18.35
  R3C 5.25 14.70
  R4C 5.25 16.50
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release sleeve: Nissan 30501-U0200 (or 305-A6801)    
  for TR2CD. Nissan 30501-A6801 (or U0200) for TS3B. Nissan 30501-N1600 for R3C. Nissan 30501-S0100    
  (or 30501-K0401) for R4C.    
Fairlady Z32NA TS2B 6.70 13.10
VG30DE TS2BD 6.90 14.05
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2B. Nissan 30501-U0200 (or 30501-A6801) for TS2BD    
Fairlady Z31NA TS2B 5.80 12.20
VG30DE TS2BD 5.85 13.00
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2B. Nissan 30501-U0200 (or 30501-A6801) for TS2BD    
Fairlady Z31 TS2B 5.90 12.30
VG30ET TS2BD 6.20 13.35
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2B. Nissan 30501-U0200 (or 30501-A6801) for TS2BD    
Fairlady S130 thru S30 TS2A 4.70 9.80
L6 TS2AD 4.60 10.40
  TS2B 5.90 12.30
  TS2BD 6.10 13.25
  TS3A 4.70 11.10
  TS3B 5.90 13.95
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2(A/B). Nissan 30501-U0200 (or 30501-A6801) for TS2(A/B) or TS3(A/B)    
Silvia S15 TS2BD 6.15 13.30
SR20DET TR2CD 6.70 14.85
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-OH600 (or SO100)    
  Also need 8 Genuine Nissan fly wheel bolts (pn: 12315-30P01)    
Silvia PS13, S14 TS2B 6.60 13.00
SR20DET, SR20DE TS2BD 6.60 13.95
  TS2CD 7.25 14.85
  TR2CD 7.25 15.40
  R3B 5.15 13.70
  R4B 5.15 14.80
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-B6000 for TS2B.    
  Nissan 30501-UO200 (or 30501-A6801) for TS2BD. Nissan 30501-K0500 for R3B. Nissan 30501-U0200    
  (or 30501-A6801) for R4B.    
  Optional Parts: Adjustable fork kit    
Silvia S13 TS2B 5.70 12.10
CA18DET, CA18DE TS2BD 6.10 13.25
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2B. Nissan 30501-U0200 (or 30501-A6801) for TS2BD    
  Optional Parts: Adjustable fork kit    
Pulsar RNN14 TS2B 6.80 13.20
SR20DET R2CD 5.50 13.90
* Orginial equipped Nissan Sleeve bearing can be used. OS Sleeve bearing kit (enables less pedal effort)    
  is available as an option.    
Bluebird H510, P510 TS2AS 4.80 9.50
L4 TS2A 4.80 9.90
* Release bearing and release sleeve specified below are needed to install any of the above:    
  Release bearing: OS00-0011 or Nissan 30502-14601. Release Sleeve: Nissan 30501-K0401 (or SO100)    
  for TS2AS. Nissan 30501-UO200 (or 30501-A6801) for TS2A    
       
TOYOTA
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
Supra JZA70 TS2B 6.80 13.20
1JZ-GTE TS2BD 7.00 14.15
  TS2CD 7.30 14.90
  TR2CD 7.30 15.45
  TS3BW 9.70 17.75
  R3C 6.10 15.75
  R4C 5.40 16.65
* OS Clutch Release Movement Alteration Kit is required for installation. 2.45
Supra JZA80 TS2CD 6.80 14.40
2JZ-GTE TR2CD 6.80 14.95
* Sleeve Bearing is included in all above models TS3B 6.40 14.45
  TS3BW 9.65 17.70
  R3C 6.10 15.75
  R4C 5.40 16.65
* OS Clutch Release Movement Alteration Kit is required for installation    
  Optional Parts: * Flywheel bolt set, and Clutch disk center alignment tool.    
Supra MA70 TS2B 6.10 12.50
7M-GTE TS2BD 6.70 13.85
  TS2CD 7.00 14.60
  TR2CD 7.00 15.15
  TS3B 6.10 14.15
  TS3BW 8.85 16.90
* OS Clutch Release Movement Alteration Kit is required for installation.    
Supra & Soarer TS2B 5.80 13.95
5M-G, 6M-G      
* This clutch set is thinner than the orginal equipped clutch system. Adjustment of the clearance by spacer    
  (about 3mm in thickness) between release sleeve and sleeve bearing may be needed.    
Soarer GZ20, Mark II GX71, Chaser GX81 TS2B 5.50 11.90
1G-GT      
* This clutch set is thinner than the orginal equipped clutch system. Adjustment of the clearance by spacer    
  (about 3mm in thickness) between release sleeve and sleeve bearing may be needed.    
  Optional Sleeve Bearing Set to adjust thickness.    
Altezza SXE10 TS2BD 5.80 13.95
3SG      
* OS Sleeve Bearing Set and 8 Genuine Nissan Flywheel bolts (pn:1231504U100) are needed for    
   installation of above clutch.    
MR2 SW20 TS2B 5.90 12.30
3SGT      
* OS Sleeve Bearing set is needed to install the above clutch.    
MR2 SW20 (NA) TS2B 5.90 12.30
3SG      
* OS Sleeve Bearing set is needed to install the above clutch.    
Celica ST185, ST205 TS2B 5.90 12.30
3SGT R2CD 4.50 12.90
* OS Sleeve Bearing set is needed to install the above clutch.    
Celica ST202 (NA) TS2B 5.90 12.30
3SG R2CD 4.50 12.90
* OS Sleeve Bearing set is needed to install the above clutch    
* Super Strut Viscous LSD equipped models should use same clutch as Turbo charged models.    
Levin, Trueno AE86, AE92, AE101 TS2AS 3.60 8.30
4A-G TS2A 3.60 8.70
  TS2BS 5.05 10.95
  TS2B 5.05 11.45
* When used for AE86, any of these clutch systems are thinner than the orginal equipped clutch system.    
  Adjustment of the clearance by spacer (about 3mm in thickness) between release sleeve and sleeve bearing    
  may be needed.    
Levin, Trueno AE92, AE101 TS2A 3.60 8.70
4A-GZ TS2B 5.05 11.45
Starlet EP82 TS2A 4.65 9.75
4E TS2B 4.30 10.70
       
MAZDA
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
RX7 FD3S TS2B 5.80 12.20
13BT TS2C 6.00 13.10
  TS2CW 9.20 16.15
  R2CD 5.80 14.20
  R3A 3.70 10.55
  R3C 4.90 14.35
* Genuine MAZDA counter weight pn: N351-11-521 and 6 bolts pn: 805-27-236 (or 8051-27-235) are needed to    
  install any of the above.    
  OS Clutch Release Movement Alteration Kit is required to install any of the above.    
RX7 FC3S TS2B 5.80 12.20
13BT TS2C 6.00 13.10
  TS2CW 9.20 16.15
  R2CD 5.80 14.20
  R3A 3.70 10.55
  R3C 4.90 14.35
* Genuine MAZDA counter weight pn: N327-11-521A and 6 bolts pn: 805-27-236 (or 8051-27-235)    
  for chassis No. 0 to 20000 (before minor change) are needed to install any of the above.    
* Use genuine MAZDA counter weight pn: N351-11-521 and 6 bolts pn: 805-27-236 (or 8051-27-235)    
  for chassis No. 20001 and on (after minor change) are needed to install any of the above.    
  Optional Parts: Reinforced sleeve bearing kit and adjustable fork kit    
RX7 SA22C TS2AS 5.10 9.80
12A TS2A  5.10 10.20
  TS2BS 5.25 11.15
  TS2B  5.25 11.65
* If thermal reactor and/or catalyic converter is equipped, genuine MAZDA counter weight (pn:1883-11-751A)    
  and 6 bolts (pn:8051-27-235 or 236) are needed to install any of the above. If 6PI and/or turbo charger is    
  equipped, use genuine MAZDA counter weight (pn:N351-11-521A) and 6 bolts (pn:805-27-235 or 236)    
  are needed to install any of the above.    
Roadster / Miata NA6CE, NA8C TS2AS 4.10 8.80
B6, BP8 TS2A  4.10 9.20
  TS2BS 4.90 10.80
  TS2B  4.90 11.30
* OS Release Sleeve Bearing Set is required to install any of the above.    
RX-8 SE3P TS2B 5.80 12.20
13B-MPS TS2C 6.00 13.10
  TS2CW 9.20 16.15
  R2CD 5.80 14.20
  R3A 3.70 10.55
  R3C 4.90 14.35
* Sleeve Bearing      
       
MITSUBISHI
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
Lancer Evolution I thru III CD9A, CE9A TS2B 5.80 12.20
4G63 R2CD 6.05 14.45
* OS Release Sleeve Bearing Set is required to install any of the above.    
Lancer Evolution IV thru IX CN9A, CP9A, CT9A TS2B 5.30 11.90
4G63 R2CD 5.20 13.60
* OS Clutch Release Movement Alteration Kit is required to install any of the above. Genuine Mitsubishi    
  Inner Kit (pn:MD977130) is required for use with OS Clutch Release Movement Alteration Kit    
* MITSUBISHI parts (pn:MD725220) or main drive shaft of MAZDA FC3S can be used as a clutch disk center    
  alignment tool    
VR4 E38A, E39A TS2B 5.90 12.30
4G63      
* OS Release Sleeve Bearing Set is required to install any of the above.    
  Before ordering OS Release Bearing Set, please make sure if you model was a minor change model    
  or not, as specifications differ.    
3000GT Z16A Turbo TS2C 6.50 13.45
6A72      
* OS Release Sleeve Bearing Set is required to install any of the above.    
* MITSUBISHI parts (pn:MD725220) or main drive shaft of MAZDA FC3S can be used as a clutch disk center    
  alignment tool    
Legnum VR4 E-EC5W (VR4) R2C 5.40 13.15
6A13 R2CD 5.40 13.80
* OS Clutch Release Movement Alteration Kit is required to install any of the above.    
       
SUBARU
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
Impreza GC8 TS2B 7.20 13.60
EJ20 R2CD 5.25 13.65
* OS Clutch Release Movement Alteration Kit is required to install any of the above.    
  Optional Parts: Clutch Disk Center Alignment Tool    
       
HONDA
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
NSX NA1 thru NA2 R2C 5.35 13.10
C30A R2CD 5.35 13.75
* OS Clutch Release Movement Alteration Kit is required to install any of the above.    
S2000 TS2B 4.10 10.85
F20C      
* OS Clutch Release Movement Alteration Kit is required to install any of the above.    
Prelude BB1, BB4 TS2B 6.70 13.10
H22A      
* OS Release Sleeve Bearing Set is required to install any of the above.    
CRX, Civic EF8, EF9 TS2AS 4.70 9.40
B16A TS2A  4.70 9.80
* OS Release Sleeve Bearing Set is required to install any of the above.    
Civic EG6, EK4, EK9, DC2 TS2AS 4.70 9.40
B16A, B16B, B18C TS2A 4.70 9.80
* OS Release Sleeve Bearing Set is required to install any of the above.    
       
LAMBORGHINI
Model/Engine Type Type F/W (kgs.) Assy (kgs.)
Countach/Diablo R3CS 6.40  15.00 
  TR2CD 6.85  15.00 
* For push type OE clutch - Sleeve Bearing required; for pull type conversion kit required