PENGARUH DESAIN VELOCITY STACK INTAKE KARBURATOR TERHADAP PERFORMA MOTOR HONDA TIGER 200CC

One of the most important parts of the motorcycle fuel system component is the carburetor. The main task of the carburetor is to supply fuel to the combustion chamber according to the needs of the engine. In its working system the carburetor refers to the Bernoully system where the flow rate is affected by the sectional system. Efforts to improve the flow pattern in the intake system, especially at the end of the carburetor, can be modified again by adding a velocity stack intake component. The Velocity stack intake component is a trumpet-shaped component. This research is to find out the best design of the Velocity. The research used was an experiment. This experimental research used a dynamometer (Dynotest) and a Honda Tiger 200cc motorbike with a standard variation without Velocity, Wall angle Velocity of 8º, Wall angle Velocity of 12º. Using the standard variation produces the highest torque and power of 20.80 Nm and 19.37 HP at 6000 rpm and 7000 rpm, the Velocity 8º variation produces the highest torque and power of 18.34 Nm and 17.40 HP at 6000 rpm and 8000 rpm , the Velocity12º variation produces the highest torque and power of 18.66 Nm and 17.73 HP at 6000 rpm and 8000 rpm. From this study it can be concluded that pairing velocity stack intakes actually reduces power and torque when compared to those without velocity stack intakes.