Big Al
New Member
- Oct 13, 2006
- 293
- Boat Info
- 370 Sundancer
- Engines
- Twin 454 Mercruiser
V-Drives
Westerbeke genny
What is the most meaningful way to measure engine numbers for a boat, HP or torque figures. I tend to compare a boat(cruiser) to a truck. In a truck I believe engine torque numbers are the best way to evaluate the engine capacity to move the truck and its load. In a boat the engine has to provide high torque at low RPMs to get the boat on plane fast and then keep provide that torque at medium RPM to keep it on plane.
I know torque numbers are generallly not provided by most popular engine brands (except GM). I don't know why.
ref: http://www.gm.com/explore/technology/gmpowertrain/engines/specialized/marine/marine_engines.jsp
http://www.gm.com/explore/technology/gmpowertrain/engines/specialized/marine/2008_8100_HP_Marine.pdf
I know torque numbers are generallly not provided by most popular engine brands (except GM). I don't know why.
ref: http://www.gm.com/explore/technology/gmpowertrain/engines/specialized/marine/marine_engines.jsp
http://www.gm.com/explore/technology/gmpowertrain/engines/specialized/marine/2008_8100_HP_Marine.pdf