DF300 23 Sceptre

[Snookerd]

Picked up 200 rpms and 3 mph today- got her up to 47 mph. Less weight, maybe loosened up, and better fuel cycling through the tank. Motor will get raised soon....

[Snookerd]

Saturday on the Manatee River....

[kmoose]

Originally Posted by Snookerd

Picked up 200 rpms and 3 mph today- got her up to 47 mph. Less weight, maybe loosened up, and better fuel cycling through the tank. Motor will get raised soon....

What prop are you using now and what is you WOT rpm? Looks like your right at 41 knots.

I got lot's of different numbers based on tide direction and wind. It's so hard to find a clean place to run without variables that affect what your trying to find a baseline for. The lowest fuel burn at an average cruising speed is going to be the best indicator for propping. Top speed is a dragon everyone seems to chase but in reality the best mpg with an average loading is what needs to be nailed down.

[Snookerd]

Finally ran the boat after the 20hr service and raised the motor all the way on the transom. Hit 6K RPM's for the 1st time with the 18.5 prop. I was at 48 mph at 6K with 3 people and 1/2 a tank. My slippage is only 6% according to Mercury's calculator. Looks like I'm dialed as much I am going to get dialed! Put about 65 miles on her yesterday.

Jonas had a good time handling her for half the trip. Personal auto pilot!

[gofastsandman]

Originally Posted by Snookerd

Finally ran the boat after the 20hr service and raised the motor all the way on the transom. Hit 6K RPM's for the 1st time with the 18.5 prop. I was at 48 mph at 6K with 3 people and 1/2 a tank. My slippage is only 6% according to Mercury's calculator. Looks like I'm dialed as much I am going to get dialed! Put about 65 miles on her yesterday.

Jonas had a good time handling her for half the trip. Personal auto pilot!

That sounds great Danny.
She will loosen up with more hours.
6% is a strong number.

[Snookerd]

Thanks Sandy. I am so pleased with it! I have to say, being jacked that high with low slippage, those new lower units do NOT need to run low like the 1st gen lowers. I know offshore you run slower, but running close to 50 to get out to Tampa Bay and back to the ramp sure feels good.

[DonV]

Outstanding Danny, the best part is getting those 65 miles at half the $$$ it would cost me with my old EFI clunker!!!

[Snookerd]

Don-It's crazy, the efficiency is 4mpg at 25mph!