KAAZ differential lock RX-7 FC

The reliable and highly competitive KAAZ limited slip differential has been proven in professional racing vehicles around the world. Do not settle for less than the industry-leading KAAZ Limited Slip Differential.

This KAAZ LSD for RX-7 FC offers a huge upgrade and impressive, consistent performance. CAUTION! ONLY FITS CARS WITH OEM VISCOUS LSD!

We also use KAAZ locking differentials in our racing cars, which means that we could gain experience with the differentials, which we can now pass on to you. In addition, we have convinced ourselves so of the product itself and found that the differentials can withstand high loads, such as racing. We recommend to replace the oil every two years. 

Series differentials vs. Kaaz differentials

Most factory differentials are open, which means that the power is sent to the wheel that has the least resistance. This allows the wheels to rotate at different speeds, for example in a curve. The power transmission is however inefficient. This results in unicycle burnouts at start-up and unintentional wheel spin when accelerating out of the turn.

Some manufacturers equip certain vehicles with viscous differentials. This is a type of limited slip differential which should offer the advantages of an open differential, but without the disadvantages of undesirable wheel spin. This is achieved by a series of plates separated by a viscous fluid, which optimizes the power distribution sent to the wheels. Although this is more favorable for performance than an open unit, a viscous limited slip differential can not know where to direct the power until a wheel begins to slip.

Clutch disc A: 6

Clutch plate B: 6

Cone springs: 4

Factory torque: 15,0-17,5 (kg-m)

The limited slip differential can be flexibly adjusted to the customer's wishes thanks to the possibility of adjusting the locking degree. We recommend the following setups for the respective use:

• 100% road use: 33% locking effect
• 50% road and 50% track use: 66% locking effect
• 100% track use: 100% locking effect

For an appointment for installation, please contact us at termin@sps-motorsport.com