Analysis of the Effect of Camshaft Duration on the Performance of Honda Tiger 200 Cc Fuel Motor Tune-Up Drag Bike

Abstract

Camshaft modification is often done in drag race. This research was conducted to determine the performance of the drag race engine with camshaft modification on the Honda Tiger 200 cc which includes torque, power, and fuel consumption specifications (SFC). This experimental method uses 8 cc premium fuel at 1500 rpm, 2500 rpm, 3500 rpm, 4500 rpm and 5500 rpm. Torque, power and SFC of the Honda Tiger 200 cc combustion motor are measured above dynotest. The final result of the research is that there is an increase in torque and power of 14.5% respectively. Maximum torque and power is obtained using a camshaft with a duration of 270 , which is 8, 012 Nm and 4, 612 kW at the same speed of 5500 rpm. On the contrary, the minimum torque and power are generated from the use of a standard 240 camshaft of 6, 850 Nm and 3, 943 kW at 5500 rpm. Specific fuel consumption (SFC) obtained has a small effect of 8.53%. The maximum specific fuel consumption (SFC) produced is 0.410 kg / kWh at 2500 rpm rotation with 270 camshaft usage. For specific fuel consumption (SFC) at least 0.375 kg / kWh at 2500 rpm rotation with 240 camshaft usage.