- Feb 4, 2007
- 7,251
- Boat Info
- 1996 450DA, TNT, Caribe dink w/15hp OB.
- Engines
- 3126 427HP TD transmissions
That's a great chart.
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I'm looking for some more information regarding the maintenance and performance issues Frank W referenced on the last page. We have a 400 DA with 3116 350 engines with about 1030 hours, always in fresh water. 1000 hour maintenance all taken care of at the end of last season. We are about 2-3 years from retiring and heading from WI to FL to shop for a sailing catamaran and hopefully head to the Caribbean. Our preferred way of getting to FL would be the midwest route of the Great Loop. One of my concerns is fuel consumption on the journey. I would like to take it slow most o the way, but don't want to do any damage to the engines by not running at high enough RPM's.
Would running consistently between 800-1000 RPM's cause damage to the engines? And I so would bumping the RPM's to 1500 or 15 mins or so an hour help protect the engines? Based on what we have been reading about the route we are looking at averaging about 60-80 miles/day, so the engines would be running 6-8 hours/day I we are cruising at around 10MPH.
Any insight would be appreciated.
Thanks,
Mike
I normally run @ 2,400 RPM. I have also run at 2,200 RPM. I haven't really run at a cocktail speed yet....I think I baby my engine! I run 2200 to 2250 RPMs. I would like to run at 2400 but thought it seemed high. What do you all run again?
We typically cruise between 2200-2300 RPM's on the lake we are currently on and that seems to work pretty well or us. However I don't want to burn that much fuel on the way down to FL.
I think I baby my engine! I run 2200 to 2250 RPMs. I would like to run at 2400 but thought it seemed high. What do you all run again?
+1Our marina is down a no wake waterway... It's 15 minutes in&out at dead idle, it's perfect for warming up and cooling down. While underway it's 2000-2400 depending sea condition and schedule.