The Blackline limited slip differential (LSD)for the Honda Civic Type R EP3, FN2, FD2, and Integra Type R DC5 with K20/K24 engines improves traction by distributing torque between the two-wheel drive drive wheels based on available grip.
Its helical gear design allows the limited slip differential to transfer more torque to the wheel with the best traction. As torque increases, the gears exert pressure against the differential housing and generate the internal friction necessary for this torque distribution. The system can thus handle a significant difference in traction between the two wheels, particularly during heavy acceleration out of a turn or when traction is limited.
Under light loads, the helical limited slip differential maintains smooth, progressive, and quiet operation. The wheels can continue to rotate at different speeds when necessary, particularly when cornering. This feature enhances traction during spirited driving while maintaining handling suitable for on-road use.
The Blackline limited slip differential uses a parallel-axis helical gear architecture optimized to distribute forces. Its 5:1 torque split means that when one wheel loses traction, the wheel with the most traction can receive up to five times the torque transmitted to the spinning wheel.
As with any helical-gear limited slip differential, a minimum amount of resistance must remain on the wheel with the least traction to allow torque transfer. It is therefore most effective when both wheels maintain a minimum level of traction. This technology also works particularly well in conjunction with modern ABS systems.
The Blackline HLF090 limited slip differential is designed for the Honda Civic Type R EP3, Civic Type R FN2, Civic Type R FD2, and Integra Type R DC5 equipped with a compatible K20/K24 transmission. Unlike the HLF090A model, which is intended for all-wheel drive conversion projects, this HLF090 version is intended for standard installation on compatible transmissions.
Manufacturer Part Number: HLF090
Quaife application code: QDF9U
Type: Helical-gear limited slip differential
Honda Civic compatibility: Civic Type R EP3
Honda Civic Compatibility: Civic Type R FN2
Honda Civic compatibility: Civic Type R FD2
Honda Integra compatibility: Integra Type R DC5
Type of transmission: K20/K24 depending on application
Torque split ratio: 5:1
Housing and Gear Material: High-resistance 8620 steel
Mounting: Direct replacement for the stock differential on compatible applications
