fuel consumption? (Cummins 450)

Hi,

If you know the exact model no you can use a thing called Google to find spec sheets like this for the engines which will be a reasonably close guide if a few gallons an hour isn't going to break the bank.

https://marine.cummins.com/attachments/public/marine/Products/Auxiliary Engines/k19/fr4291a.pdf

That fuel chart is for a KTA 19 liter commercial marine engine. The OP most likely has a pair of 6CTA - 8.3 liter Cummins Mercruiser diesels rated 450hp @ 2600 rpm.

Did a quick Google search for nothing, sometimes google is not the final solution..........

That was the only page I could find quickly and it would not (obviuosly) load the details.

Hi,

PacBlue, Is this what you wanted to post before? I tried to save it and ended up with the same blank parts as your post.

6CTA 450 New Engine Performance Sheet

Yes, that's the one....

Look on boattest.com for your specific boat model. Here are the figures for my Carver 506:

Test Power: 2 x 450-hp Cummins 450 C diesel inboards
Range
RPM MPH Knots Total GPH MPG NMPG Stat. Mile NM KM KPH LPH KPL dBA
1000 8.2 7.1 3.2 2.56 2.23 1176 1023 1893 13.2 12.1 1.09 56
1250 9.8 8.5 6.2 1.58 1.37 726 631 1168 15.77 23.5 0.67 62
1500 11.0 9.5 11.8 0.93 0.81 426 370 686 17.7 44.7 0.4 64
1750 11.6 10.1 18.4 0.63 0.55 289 252 465 18.67 69.6 0.27 66
2000 14.7 12.8 25.6 0.57 0.50 264 229 425 23.66 96.9 0.24 66
2250 20.4 17.7 30.6 0.67 0.58 305 265 491 32.83 115.8 0.28 73
2500 23.8 20.7 38 0.63 0.54 287 249 462 38.3 143.8 0.27 73
2700 27.7 24.1 49 0.57 0.49 259 226 417 44.58 185.5 0.24 73