HammerheadSeries
Stepping up to the Hammerhead series,which is designed for maximumperformance, looks and durability.This engine will outperform mostBig Boat block gasoline V8’s and at the sametime leave you fuel for another day at sea.The Hammerhead Series is DieselPowerat it’s best.All Hammerhead engines are fitted with theHigh Performance Stanadyne Marine DB4mechanical fuel injection pump The AutorotorTwin ScrewSupercharger
The Autorotor supercharger is of a so-called Lysholm design and canbe compared to a GM roots-type supercharger in that it has two rotating, spiral cut meshing rotors. But the principal of operation with an Autorotor supercharger is that it operates in a completely opposite manner than a GM roots-type supercharger does. An Autorotor supercharger is designed using two screw type lobes, one convex screw-shaped lobe and the other, a larger concave screw-shaped cavity. The screw rotators operate in opposite directions from one another, drawing air from one end of the housing and pumping it through the housing longitudinally between the rotors and then dispersing it from the other end of the case. The air is not onlypumped or moved from one end to the other by theintermeshing screw action, it is also squeezed betweenthe rotors to compress it. This system is known as a positive displacement supercharger. It has no contactingparts or frictional drag other than the rotor gears—friction causes heat, which affects horsepower—therefore, it needs no internal lubrication and is perfectly balanced like a roots blower. Still it affords internal compression similar to a vane supercharger, which greatly increases the adiabatic and volumetric efficiency.