Boatingfool
New Member
Must read for all Electronic Diesel Engine Owners!
There was a post about smokey 480 Cummins Electronic Diesels when getting up on plan a while back. I posted that my boat, especially now that its warmer now and I have all my gear, etc. weight aboard, takes a noticeable 30-seconds or so to get up on plane.
Everything checks out 100% on the electronic MAN engines, and once on plane the boat torpedoes between 18knots and 36knots.
I know nothing is wrong, but its always made me wonder WTF was going on when I get up on plane...
I stumbled across this today:
"Special Considerations for Boats with Electronic Diesel Engines"
http://www.hydrocompinc.com/knowledg...hECEngines.pdf
Awesome reading! This makes total sense as smaller displacement diesels (which are lighter and easier for manufacturers to install, and leave more room for other amenities such as bedrooms) produce the same horsepower that larger displacement (ie. more low end torque generally) diesels made years ago. Explains why it takes so long to get my 70,000+ lbs up out of the water!
This probably also explains why boats equipped with the Cummins 8.3L 540 and 600hp engines aren't much quicker than their 480/500 alternatives at similar RPM (they just can't be propped much larger, so the extra speed only comes from the higher rpm).
There was a post about smokey 480 Cummins Electronic Diesels when getting up on plan a while back. I posted that my boat, especially now that its warmer now and I have all my gear, etc. weight aboard, takes a noticeable 30-seconds or so to get up on plane.
Everything checks out 100% on the electronic MAN engines, and once on plane the boat torpedoes between 18knots and 36knots.
I know nothing is wrong, but its always made me wonder WTF was going on when I get up on plane...
I stumbled across this today:
"Special Considerations for Boats with Electronic Diesel Engines"
http://www.hydrocompinc.com/knowledg...hECEngines.pdf
Awesome reading! This makes total sense as smaller displacement diesels (which are lighter and easier for manufacturers to install, and leave more room for other amenities such as bedrooms) produce the same horsepower that larger displacement (ie. more low end torque generally) diesels made years ago. Explains why it takes so long to get my 70,000+ lbs up out of the water!
This probably also explains why boats equipped with the Cummins 8.3L 540 and 600hp engines aren't much quicker than their 480/500 alternatives at similar RPM (they just can't be propped much larger, so the extra speed only comes from the higher rpm).