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Old 06-11-2019, 04:29 PM   #1
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Default 2001 maxum 2300sc max speed ??

Hey everyone , so i read on internet that my 2300 should get around 45 mph at wot . ( i got the 5.7 thunderbolt v with an alpha one gen 2 prop 19pitch alum ) . When going wot ( around 4400 to 4600 rpm ) i can only get around 36 mph and that is on a calm day . All maintenance done and running smoth i got 420h on the 350 . The boat is new to me this year and the previous owner never ran it at woot .
Any advide would be great thanks .
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Old 06-11-2019, 09:31 PM   #2
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If you are using the dash speedometer try using a gps speed application to verify
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Old 06-11-2019, 09:37 PM   #3
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Sorry forgot to mention it is using 3 different apps including the navionics .
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Old 06-11-2019, 10:49 PM   #4
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Have you experimented with outdrive trim to find the sweet spot? Try trimming the outdrive out/up.
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Old 06-11-2019, 11:02 PM   #5
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Yes the 36 mph is all trimed perfect . it wont even go over 4000 rpm if its not trimed out .
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Old 06-11-2019, 11:26 PM   #6
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Do not think you will see 45mph as that is a fairly heave boat for a 5.7.
Speed is not a set spec. with a boat as there are too many things that change how a boat preforms.
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Old 06-11-2019, 11:36 PM   #7
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Thanks for the response Don , to be honnest i just went with what i read on forum for the same boat as mine ( same set up ) , im still happy with the speed i have and the boat is running fine . i was just a bit curious of why mine had such a difference from everyone else . And my top speed was only myself with the two kids . I might try a ss prop 🤗 . Have a good day
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Old 06-12-2019, 12:44 AM   #8
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Fabien do you know the dry weight of your boat? I have a 2400 SCR that weighs 5000 lbs dry and has a 5.7 and it can achieve high 30ís with 2 souls on board. Your boat should be able to break 40 IMO. How many souls do you have on board when making these measurements and how much gear weight?
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Old 06-12-2019, 12:54 AM   #9
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The boat is 4188 lbs , i tried a few time with me and my buddy or me and the 2 kids . No gear exept the required safety equipment and a couple snacks , gas was between 3/4 and full . And i was trimmed the best i could . ( trimmed guage is not working but i go by the rpm and the sound ) . The holding tank was a 1\4 full ( about 10 l in it ) .
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Old 06-12-2019, 02:05 AM   #10
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Iím on the Chesapeake Bay where wave height is can be 1-2 feet high at a 2.2 sec period.
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Old 06-12-2019, 02:17 AM   #11
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Im in the gulf of saint lawrance , east coast of new brunswick . We pretty much only go out if it is bbq on the water weather lol .. Anyways thanks for your time .
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Old 11-15-2019, 07:30 PM   #12
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Quote:
Originally Posted by Fabien View Post
The boat is 4188 lbs , i tried a few time with me and my buddy or me and the 2 kids . No gear exept the required safety equipment and a couple snacks , gas was between 3/4 and full . And i was trimmed the best i could . ( trimmed guage is not working but i go by the rpm and the sound ) . The holding tank was a 1\4 full ( about 10 l in it ) .
This may be a little late but I have the same boat with the 5.0L engine and I get about 41 mph WOT at around 4400 rpm. I think that was with a beat up old aluminum 19" 3 blade prop. I now use a 4 blade comp prop and get slightly less speed but it seems to plane a lot better.


Your boat is more than 4188 lbs - that number is the dry weight for the 5.0L engine as I understand it. But, through talking with others, that boat with 1 passenger and fuel, supplies etc it likely around 5500 in the water. I am an equipment-holic and a heavy dude to begin with so I expect mine is even heavier and I still get near 40 mph.


This year I am installing smart tabs and a SS prop. I forgot to mention as well that I run a Dol-Fin ventilation plate on it too which seems to improve hole-shot but definitely improves handling and the ability to trip further up and still not get ventilation.

I expect you just need to tweak your set-up some...unless you've got low compression in one or more cylinders.
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