Drives & Exhausts
This category is separated into sub-categories of Drives & Propulsion and Exhaust Systems. Use the drop down menu under Drives & Exhausts to select.
Drive Units
With a sterndrive or inboard / outboard drive the engine is located close to the transom. Stern drives deliver power via a shaft that goes through the transom to the outdrive.
The out drive or lower unit contains the gearing and carries the propeller. The boat is steered similar to an outboard motor by pivoting this unit and no rudder is required.
Propulsion Systems
It is important to select a propulsion system that is a good match for the hull and motor. Propulsion systems include waterjet or drive shafts and stern drives with propeller.
The correct choice of water jet thrust or propeller is essential to get the best handling and performance. Propulsion types are selected for different tasks and locations.
Exhaust Systems
Exhaust gasses need to freely exit an engine to allow it to generate maximum power. Specialist exhaust systems can be added to improve an engines performance.
A ‘dry’ exhaust system transports exhaust gases to the outside of the hull without cooling. A ‘wet’ exhaust system aims to reduces exhaust gas temperature by cooling.
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