The principle of this modification is to achieve more direct drive from the transmission. By locking the torque converter we can prevent the constant hunting caused by locking and unlocking the converter. It is important we still maintain the factory driveability of the vehicle and this is why we choose to only lock the converter above 80km/h automatically. Below 70km/h the trans can tend to lug as it selects a taller gear and relies on the converter to slip. We have a secondary automatic low speed mode available to lock below this speed and when used in conjunction with the active select mode you can manually hold it down a gear and achieve engine breaking downhills.
Each kit supplied includes a speed sensing controller that controls when the lockup is on or off. This controller has two channels which has allowed us to create dual speed automatic modes.
We pre-program the default speeds which will work out of the box. these speeds are approx:
The Lockup Kit:
We recommend when fitting a lockup kit and towing 3T or more, a Reflash of the transmission control software also be considered. The benefits are,
We also offer Landcruiser engine tuning that compliments our above products. This is available in stage 1 and stage 2.
Stage 1 is tailored to suit a standard vehicle exhaust with No exhaust modifications, Stage 2 is full exhaust replacement.