Largest diesels in a 35?Performance?

Stafford · Post by **Stafford** » Mon Jul 08, 2019 4:57 pm

What is the largest diesel engine package anyone has heard of in a 35'? Thinking of new QSB 380HP Any out there?

Rick · Post by **Rick** » Tue Jul 09, 2019 4:36 am

The guy on my dock has Cummins 370's in his '77, good fit and the boat flies. I think he cruises around 23 knots. Captain Rick Ticket 85 SF Merc 454 MPI's Falmouth, MA

asher · Post by **asher** » Sun Sep 15, 2019 3:00 am

I have 330 qsbÃ¢â‚¬â„¢s. No difference in actual engine size between the 330Ã¢â‚¬â„¢s and 380Ã¢â‚¬â„¢s. Cummins gets the extra hp from turning higher rpms between the two models. If you look at the power curves you can turn a slightly larger wheel with the 330Ã¢â‚¬â„¢s and will get slightly better economy. Now if you want to go fast, go for it. Loaded for bear IÃ¢â‚¬â„¢ll cruise 20-21 at 2350-2400 rpms.

Stafford · Post by **Stafford** » Tue Sep 17, 2019 3:26 am

I currently have cat 3116s 350HP turning 4 blades and can cruise @ 23Knots at 2300rpm Just thinking of a future repower. My boat has a clean fresh bottom (Blasted, barrier coated, Pettit Black Widow) and the struts are faired in.

asher · Post by **asher** » Fri Oct 11, 2019 5:06 am

Sounds nice. Now as far as engine size the 480 hp qsbÃ¢â‚¬â„¢s are only a touch wider than the 380Ã¢â‚¬â„¢s due to a larger aftercooler. May be worth consideration. I have a buddy with a strike 33 with the 480Ã¢â‚¬â„¢s and they haul.

rich n · Post by **rich n** » Sun Oct 13, 2019 11:43 am

I've heard of guys with 440 yanmars