Suzuki ?

[striper56]

I took the boat for a ride here are the stats. WOT 5790 at 25 knot I was burning 9.79 gph 18kts 6.75 gph. it has a 16 X 17 prop. what do you thing? Should I try to get closer to the max RPMs 6100

[Snookerd]

With the 17 pitch prop, you should be able to get above 5750 rpm’s. Your motor is mounted to low. I’m at the highest mounting hole and have no cavitation in tight turns and getting on plane, etc. I have an 18.5 pitch prop and can get higher rpm’s then you are getting with your 17.

[Bigshrimpin]

Originally Posted by striper56

I took the boat for a ride here are the stats. WOT 5790 at 25 knot I was burning 9.79 gph 18kts 6.75 gph. it has a 16 X 17 prop. what do you thing? Should I try to get closer to the max RPMs 6100

Something is very very wrong with this setup.

26% prop slip at cruise is really really bad.
29% prop slip at WOT is WORSE.

Are you sure you weren't towing the dock.