ENGINE IMPROVEMENT Presented by: Muhamad Arif Fadli Ahmad
INJECTION SYSTEM Fuel efficiency increase The air-fuel ration can be adjusted to save fuel The timing of the introduction of the fuel into the combustion chamber can be manipulated No need for choke during cold start
INCREASED PRESSURE Increase pressure in the combustion chamber Can be achieved be putting a turbine or simple rotating fan
AIR FILTER Open pod air filter allows better air flow to the engine, increasing the performance
INVASIVE MODIFICATION MAINJET CHANGES Increase fuel-air ratio needed for alcohol Enlarge this opening by anywhere from 20 to 40% IDLE ORIFICE CHANGES (Carburator) For the engine to run at slowest, or idle, speeds, the air-fuel mixture will pass thru the idle orifice If it isn't large enough, will not provide the needed amount of air/fuel blend to keep the engine running May only be necessary to loosen the idle mixture screw at the base of the carburetor Can be enlarged by 50% ENGINE TIMING The correct timing advance for a given engine speed will allow for maximum cylinder pressure to be achieved at the correct crankshaft angular position