I was referring to the outboard twin cam arrangement rather than a single cam located above the crankshaft. The overhead cams in the Ferrari 365GTB/4 Daytona engine are gear driven. The question is does lowering the center of gravity make up for the weight and mechanical losses of pushrods and rockerarms.Cams in the block do two things. They can be direct drive from the crank, no chains or belts to break or jump timing. It moves as much weight as possible down to lower the center of gravity of the engine.
The mechanics working on Maserati race cars in the thirties hand fitted parts so they didn't need gaskets. Don't know how they sealed the heads unless they used thin copper. Of course the Offenhauser engine didn't need head gaskets either but that used a more radical approach.Who notes the fine work that eliminates head gaskets. Like a Citroen 2CV.
In a car that does more than goes straight-left-straight-left for two hours at a time yes, it does. The more the weight is concentrated at or near the roll center the less the body will roll and the faster the car can transition in the turns. Horsepower helps lap times. A car with gobs of horsepower that cannot put the power to the ground or turn a corner will get beat by a lower horsepower car that can.The question is does lowering the center of gravity make up for the weight and mechanical losses of pushrods and rockerarms.
Must be for a compact car ................. :neer::rotflmao: