Madifonzo
New Member
- Sep 30, 2013
- 716
- Boat Info
- 2005 280
Zodiac Zoom 310 9.9 Honda
- Engines
- Twin 5.0 MPI with Bravo III Drives
So I am constantly hearing reports from people on CSR and elsewhere that o should be able to get 50 MPH out of my boat.
I have twin 5.0's with bravo 3's. Bottom is clean tans are up.
Yesterday I had to make a fuel run. Tank had all but enough gas to get me to the dock...no gear, full water tank and just me in the boat. Water was smooth as can be...like glass really. So I decided to open her up. With drives fully tucked (if I add any trim, the props cavitate), throttles pinned I could only get 35 mph out of the boat at 4500 RPM. Specs for the engines states that WOT is in the neighborhood of 5000-5500 RPM. I am running stock Bravo props...24P if I recall. What gives?
Second quesrion is regarding fuel. Gauge will often show 15 gallons of from reality. Granted it's 15 gallons more than the gauge shows but still, that seems like a large margin of error.
I have twin 5.0's with bravo 3's. Bottom is clean tans are up.
Yesterday I had to make a fuel run. Tank had all but enough gas to get me to the dock...no gear, full water tank and just me in the boat. Water was smooth as can be...like glass really. So I decided to open her up. With drives fully tucked (if I add any trim, the props cavitate), throttles pinned I could only get 35 mph out of the boat at 4500 RPM. Specs for the engines states that WOT is in the neighborhood of 5000-5500 RPM. I am running stock Bravo props...24P if I recall. What gives?
Second quesrion is regarding fuel. Gauge will often show 15 gallons of from reality. Granted it's 15 gallons more than the gauge shows but still, that seems like a large margin of error.