Trojan Boat Forum

Not 100% on what you are looking for. But you can plan on about 1 MPG on plane and maybe 2 MPG below hull speed ( 7 knots or so) While not exact it should be in the ballpark and will vary some on the exact speed, weather conditions, and of course the boat's condition.

You can compare an automotive engine to a marine engine with many differences. Like cams, ignition advance curves to start. starboard engine even turns in the opposite direction than the port.

The 318 is rated at 225hp. Trojan info shows 4000 as top rpm. And it is propped that way. I can try and look up the specs for a new 1971 F31, but it is unlikely an old boat would come close.

Nice work and good info.

I always preferred 3 blades for performance.

You definitely should be faster than what you are. The old props in poor condition are surely a factor. Look forward to the results. I expect a positive report.

Nice, I have heard a lot of good things about their propellers. I have a friend who runs them and swears by them. Did you change the diameter or pitch at all? Looking forward to hearing how they do. I'm also jealous.

Great Info Rick

The hose is 1 3/4" Beacon carries parts for these including elbow and mufflers.

Bob. said the cradle was about 8" off the hard. Remember the height will vary on the trailer used. 13'4" was the height in the cradle.

Try contacting Bob at Beacon Marine. But trojan specs maybe with the cradle

Many years ago. Was not that hard just took time.

BobCt ? can you help?

Is this a mid-cabin express or an express? 2 totally different boats. I think you may have posted on the FB page is why I ask.

What exactly has been removed? all the lines? tank? Pump?