Go Back   Trawler Forum > Maintenance and Systems > Power Systems

Thread Tools Display Modes
Old 01-21-2016, 11:52 AM   #1
TF Site Team
Baker's Avatar
City: League City, Tx
Country: Texas
Vessel Model: Carver 356
Join Date: Oct 2007
Posts: 4,956
Cummins 330.....330hp....or 315???

I guess I could look on the dataplate on my engine but my Cummins guy mumbled something the other day that the 330B is a 315hp engine and it is the same engine as the older 315hp engines??? I have heard Tony on BD refer to the same thing. Is this true? And if so, are the 370 6BTAs actually 370hp or something different?

Prairie 29...Perkins 4236...Sold
Mainship Pilot 30...Yanmar 4LHA-STP...Sold
Carver 356...T-Cummins 330B
Baker is offline   Reply With Quote
Old 01-21-2016, 12:51 PM   #2
ranger42c's Avatar
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 2,094
Maybe something about different measurement criteria.... so could be both.

FWIW, our Cummins C engines' "crankshaft power" ratings are 450 hp "according to ISO 3046 fuel stop power. Fuel 25C (77F)"... but 430 bhp "according to ISO 8665 fuel stop power. Fuel 40C (104F)" Our data plate read "Rated HP 450 (metric) at 2600 RPM"


South River, Chesapeake Bay
ranger42c is online now   Reply With Quote
Old 01-21-2016, 02:26 PM   #3
djmarchand's Avatar
City: Essex, Ct
Country: USA
Vessel Name: Bella
Vessel Model: Mainship Pilot 34
Join Date: Aug 2012
Posts: 1,985
Yes, Chris is correct. The difference in hp is due to differences in the measurement protocol- fuel temperature principally. The engine is the same.

djmarchand is offline   Reply With Quote
Old 01-22-2016, 10:28 AM   #4
City: Fort Myers
Country: USA
Join Date: Jul 2013
Posts: 763
It changed to the metric standard so yes similar HP, BUT the later 6B 330hp models were improved over the older 315 models, boatdiesel has plenty of info on that.
Marlinmike is offline   Reply With Quote

Thread Tools
Display Modes

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

All times are GMT -5. The time now is 04:25 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012