dpvandy01
Well-Known Member
- Sep 6, 2007
- 2,535
- Boat Info
- 2007 38 Sundancer
&
2014 Sea Fox 256 Commander
- Engines
- Twin 8.1L Close Cooled V-Drives & 300 Yamaha OB
Ok so my 2001 280 DA Single 7.4L BIII is having a few issues. I've not been running it as often as I have in the past as I've mostly been running the 185. SO normally I'll get 28 MPH at around 3600 RPM with WOT being in the 4600 to 4800 range.. Well this past weekend it struggled to plane and once it did I was only able to get 4000 RPM. At 4000 RPM my GPS was showing 27 MPH. The bottom and running gear are seriously dirty (lots of growth) since I've been off from the fire house with a fractured wrist and haven't been able to clean it for about 3 months. My question is will growth affect my WOT or just my speed? And another issue related or not but the Drive Gear reservoir which was full prior to leaving the slip was empty and alarming 20 miles later.. I topped it off and checked the bilge but didn't see any evidence of a seriously leak. Additional info,,,, Full Fuel, Holding tank EMPTY, H2O about 3/4. Normal gear, and my wife and myself only. This boat is what I would consider marginally powered as is but it seems something is amiss here. Best case scenario for this boat with a clean bottom is in the 41 to 43 MPH range. So growth accounting for 800 RPM and 14 MPH??