Blackline Honda Y21/Y80/S80/S4C Spiral LSD

Description

Lackline Honda Y21/Y80/S80/S4C Spiral LSD Applications:- Honda Civic EK4 Honda CRX (Del Sol) Vtec Honda Civic Si 1999-2000 Vtec Honda Integra GS/LS 1990-2000 Honda Integra GS-R 1992-1993, Y21 For cars with a Y21/Y80/S80 or S4C transmission Spiral LSD advantages:- Equal rotation speed for both wheels Torque distributed according to traction Minimal maintenance requirements – no clutches Fast response compared to slippery LSDs Soft and progressive grip, low noise Easy controlled PTO and drifts Direct replacement in the front differential Blackline Helical LSDs – How They Work The Blackline spiral LSDs are torque biasing, meaning they distribute the torque across the wheels, allowing more torque to be applied to the wheel with the best traction, improving performance and driving characteristics especially in low grip situations. The spiral-shaped teeth regulate the distribution of friction within the LSD. When torque is applied to the spiral-shaped gear system, it creates a force that pushes the gear into the differential housing, resulting in friction. Increasing torque increases the thrust that is directly transmitted with the amount of torque. This allows the Blackline LSD to handle significant imbalance in traction, even under heavy power conditions, as would be the case when exiting an engaged corner. But at low torque, the LSD can differentiate smoothly and quietly, making the differential very suitable for normal driving on the road. The Blackline LSD uses the popular parallel-axis spiral gear configuration that has been optimized for uniform load distribution. They are designed with a torque bias of 5:1, meaning that if one wheel loses grip, the wheel with the most grip can receive five times as much torque as the wheel that slips. However, five times zero is still zero, so all these spiral-shaped LSDs work best when both wheels are ‘aligned’ and there is still some traction available on the slipping wheel. In practice, this is rarely a problem, because there is always some ‘resistance’ on the slipping wheel, but some drivers skillfully use the left foot brake to partially lock the rotating wheel. Note – Spiral-shaped LSDs work especially well in combination with modern anti-lock braking systems.