well with the theme of a smooth, quiet, modern powerplant. My weight?
1190 lbs. Do I care or need to pack light? Not at all! Liquid cooled “automotive” engines are heavier than air- cooled “aircraft” engines for obvious reasons that should be apparent just by looking at one and thinking of why it was designed the way it was. This should not be a difficult concept to grasp. A liquid cooled engine must have a cooling jacket. This equates to larger area in the cylinder head castings as well as water pump and related drive mechanism, thermostat, hoses, radiators, coolant reservoirs, heater cores and fans, etc. Because modern engines are computerized, we require a rock solid electrical system that calls for dual batteries. Because small-bore automotive engines require higher RPM to achieve max hp & torque, we require a gearbox to reduce the RPM to something that can drive a prop without shattering. Modern engines use overhead cams, not pushrods. These are the primary factors leading to a heavier overall engine. However, we make up for this weight by using mod
