Thread Tools Search this Thread
Old 15 June 2003, 14:29   #1
Country: UK - England
Town: Great Harwood, Lancs
Boat name: Tigger II
Make: Bombardier Aerodeck
Length: 3m +
Engine: Tohatsu 25HP
Join Date: Jul 2001
Posts: 626
Diesel Max Continious RPM

Hi folks

Now I am getting used to things a question for diesel owners.Love the fule consumption but still a lot to learn about the engines.

What do people run their engines at (RPM) for long periods
The engine is the Yanmar 4LHA-STZP

My engine has a max continous rating of 190HP, but they then give two curves for power, crank and propellor output.

Crank shows 190HP at about 2300RPM, and propellor shows 190 at about 3100RPM.

Based on this and what other people run, what is the max RPM I can hold for long peopds,say hours, is it 2300RPM or 3100RPM, or somthing different.

While it is nice to run fast when conditions allow I dont want to damage the engine in doing this.

Also at max RPM 3300RPM and a Bravo 3X on 15.5" * 25" props I am getting about 32-34KTS does this sound about right?.

Regards Gary
Garygee is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:05.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.