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weight comparisons
Posted: Fri Jul 11, 2014 10:21 am
by todd brinkerhoff
In my ongoing research of diesel conversions, I am wondering if anyone knows the difference in weight between a Crusader 454 (with exchanger) set-up and a potential Cummins 6bta set-up. I'm figuring weight is going to be a major factor in a remote v-drive configuration. Also, is there a large difference in dimensional size?
Re: weight comparisons
Posted: Fri Jul 11, 2014 10:23 am
by todd brinkerhoff
...and for informational purposes, this model came with the optional Cat 3116, which I am assuming is heavier than the Cummins.
Re: weight comparisons
Posted: Fri Jul 11, 2014 5:24 pm
by gettaway
Todd
i did a quick Google search and found the following, you might want to verify all of these but its probably close
CUMMINS MARINE 6BT 1200 LBS.+-
CAT MARINE 3116 1500 LBS.
CRUSADER 454 7.4 1150 LBS.
http://oa.upm.es/14340/2/Documentacion/ ... _153kw.pdf
http://cummins.ba/files/6bta59m.pdf
http://www.simplicity-marine.com/crus454xl.htm
Re: weight comparisons
Posted: Fri Jul 11, 2014 6:30 pm
by RWS
The Yanmar 6 LP is 899 lbs without marine gear.
It is taller, narrower and longer than the 454.
The Cummins is in fact taller than the Yanmar and was therefore not a candidate for my 10 Meter, as I would not cut the deck.
While it meets US EPA tier I and II requirements, it does not meet tier three and is no longer commercially available in the US.
It is a mechanical diesel, not common rail.
RWS
Re: weight comparisons
Posted: Fri Jul 11, 2014 7:04 pm
by prowlersfish
The Cummins 6@BTA 330 & 370 are 1280 lbs in marine trim no gear box
Re: weight comparisons
Posted: Sat Jul 12, 2014 7:23 am
by RWS
Todd:
If you are considering a diesel upgrade, here's some preliminary Floscan data on mine:
3+ NMPG at displacement speeds
1.2 - 1.3. NMPG at cruising speeds which seems to be a fairly flat curve until 22 kts where it begins to drop to 1.1 NMPG at 3400 RPM.
I BELIEVE THESE NUMBERS ARE A JUST BIT SHY OF ACTUAL, AND I WILL PUBLISH A NEW CURVE AFTER MY NEXT FILL UP/CALIBRATION TAKES PLACE.
RWS
Re: weight comparisons
Posted: Sat Jul 12, 2014 4:25 pm
by todd brinkerhoff
[quote="RWS"]Todd:
If you are considering a diesel upgrade, here's some preliminary Floscan data on mine:
3+ NMPG at displacement speeds
1.2 - 1.3. NMPG at cruising speeds which seems to be a fairly flat curve until 22 kts where it begins to drop to 1.1 NMPG at 3400 RPM.
I BELIEVE THESE NUMBERS ARE A JUST BIT SHY OF ACTUAL, AND I WILL PUBLISH A NEW CURVE AFTER MY NEXT FILL UP/CALIBRATION TAKES PLACE.
Thanks RWS. Trying out a viable option. I like the Yanmars but they're expensive. That's why I was looking into the remanned Cummins options.