I have a 2009 with the 5.7 Volvo Penta. I have been asking about prop size and blade count on here for a while and have read some good comments and have started to learn some things. Well I finally have my GPS installed and here is what I have found.
With 4 adults and about 3/4 of a tank (45 Gallons) and the prop I am running is a 14.8 x 17 I hit and maintain 38.4 MPH at WOT 5000RPM.
I took my hull number and sent it to Bennington and asked what prop came with it new and they said a 15.5 x 17.
My questions are;
Does this top speed sound right?
Would going to the bigger prop increase my speed?
What are the negatives of going to that bigger prop?
My thought always seem to be that it seems too easy for me to hit the 5000 RPM that I am under propped, am I?
With 4 adults and about 3/4 of a tank (45 Gallons) and the prop I am running is a 14.8 x 17 I hit and maintain 38.4 MPH at WOT 5000RPM.
I took my hull number and sent it to Bennington and asked what prop came with it new and they said a 15.5 x 17.
My questions are;
Does this top speed sound right?
Would going to the bigger prop increase my speed?
What are the negatives of going to that bigger prop?
My thought always seem to be that it seems too easy for me to hit the 5000 RPM that I am under propped, am I?