RT110Di Hi-Speed Plus, RT140Di Hi-Speed Plus, RT110Di Hi-Speed ES Plus
and RT140Di Hi-Speed ES Plus
Piston
The pistons employs a deep troidal bowl type, to allow the intake air to swirl in the bowl quicker and smoother. It also permits the precise ratio of intake air and fule mixture to take effect, resulting in complete combustion. The process enhances the engine output, and increases level of torque when operating at a low speed by 3 to 5%.