Mike Francis
New Member
- Aug 15, 2017
- 6
- Boat Info
- 2008 300SLX
- Engines
- 350 MAG MPI
Bravo III
Axius / DTS
Just bought a 2008 Sea Ray 300SLX with twin 350 MAG's and Bravo III's,. We're trying to determine the "best" cruise RPM's for the boat. I've seen several boat tests which shows 3500rpm is the most efficient (most range), but I'm wondering about engine longevity. Our previous boat, 280 CC with twin 5.7L's, seemed to be very happy at 3000rpm - 3200rpm, new boat seems to be happier at higher rpm's but I'm worried about engine longevity. What do others with similar engines cruise at?
Also I'm wondering what outdrive trim angle do others use with their 300 SLX or 290? We're noticing the trim doesn't seem to make much difference with the speed of our boat, unlike previous boats, just a slight reduction in vibration.
Also I'm wondering what outdrive trim angle do others use with their 300 SLX or 290? We're noticing the trim doesn't seem to make much difference with the speed of our boat, unlike previous boats, just a slight reduction in vibration.