HKS
LA Clutch Twin Plate (Light Action), R32-R34
LA Clutch Twin Plate (Light Action), R32-R34
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【LA CLUTCH TWIN PLATE】
The tuning expert HKS provides the clutch system for streets and sports use.
Capable torque, pedal effort, and semi-engagement range are closely examined for various driving situations.
Despite the support of approximately 700ps, the main concept for the Twin Plate LA Clutch remains the same. Using "MG Composite Discs" to reduce judder and achieve better driving feel compare to stock clutch. Disc dampers are used to reduce gear noise and protect the transmission from shock torque. The LA Twin also has a "Pivot Ring" within the pressure plate to offer partial engagement like no other twin plate clutch.
Maximum torque 73kgf-m, horsepower 700ps. With big capacity as metal clutches, easy clutch operation as stock. High total balance clutch system.
1 Lightweight cover and diaphragm spring with optimized characteristic
Large capacity clutch systems usually require heavy pedal pressure. With the diaphragm spring, which has optimized characteristic, it requires only proper pedal pressure. Although it has stiff pedal feeling, it is incredibly easy and stress less operation from street to circuit during. Cover is made of forged aluminum, which is stiff and low inertia.
2 "Pivot Ring" for advanced controllability
Pivot Ring that is low stiffness spring on pressure plate increases clutch engagement zone. It eases clutch engagement operation and it is as easy as stock clutch.
3 8.5 inch "MG Composite Disc" with damper
In order to increase capacity, new 8.5 inch disc was developed. Damper of the disc eliminates gear noise during operation and protects transmission from shock torque. Because of the stable friction coefficient, clutch operation is easy and prevents uncomfortable vibration during clutch engagement. Independent type enables lightweight and stiff structure with smooth shift feeling and precise operation of disengagement.
4 "Lifting Plate" for fixing wear balance of disc
By repellent of lifting plate on both sides of center plate, position of center plate will be always centered during disengagement.
It improves life of disc and reduces mechanical noise of multi plate clutch.
5 "Lightweight flywheel" for quick response
Weight of flywheel is properly reduced for each vehicle type for better response
and smooth driving as too less weight cause driving difficulty. Round drive boss enables optimized inertia performance. Total weight of clutch kit is also lighter than stock.
■Note
- Acceptable Range is the range of engine torque that the clutch can be used for except intentional overheating of clutch.
- Acceptable range by condition is the range that the clutch might slide by rough operation, kick back from tire and distortion of parts etc.
- Over the limitation is the range that the clutch might slide during clutch engagement at high rpm.
- Mechanical limitation is the point that sliding starts when accelerated during driving.
■Comparison of LA Clutch Twin with stock clutch (SKYLINE GT-R BNR32)
| Stock | LA Twin | Comparison | |
| Pedal pressure (N)* | 162 | 196 | 121% |
| FW weight (kg) | 9.72 | 6.88 | 71% |
| KIT weight (kg) | 18.12 | 14.86 | 82% |
* Pedal pressure is the actual tested data. It depends on vehicle.
Other required part
| Product | Nissan Part # | Qty |
| Release bearing | 30502-12U00 | 1 |
Repair parts
| Product | Application Chart | Code no. | Price (w/o tax) |
| Clutch disc (Transmission side) | BNR34, BCNR33, BNR32, ER34 | 26999-AN008 | |
| Clutch disc (Flywheel side) | BNR34, BCNR33, BNR32, ER34 | 26999-AN009 | |
| Clutch cover | BCNR33, BNR32, ER34 | 26999-AN011 | |
| Pressure plate | Common part | 26999-AK006 | |
| Center plate | Common part | 26999-AK007 | |
| Bolt set (cover) | Common part | 26999-AK008 | |
| Bolt set (Flywheel) | BNR34, BCNR33, BNR32, ER34 | 26999-AN010 |
Remarks
The BNR34 uses a different clutch cover, and has a separate kit part number.
