40hp motor on a 25hp boat

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gillespiej03

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North Carolina
I have a 15 ft john boat with remote steering. The boat is rated for 25hp but I ran across a deal on a 40hp force. Would it be ok to run the 40hp on this boat. Here is a link to the boat.

https://www.tinboats.net/forum/viewtopic.php?f=21&t=15312
 
It will get you a ticket in Oklahoma. Better check locally.

I would be real careful about opening it up with that much power.
You don't want to turn the boat over at 40mph. :D
 
I wouldnt do it. Those limits are on the boats for a reason. Some guys here have beefed up thier transom so they could go with more power but IMO your just asking for trouble.

It would get you fined here in OH as well.
 
wow This is the first thread that someone wants to over power a boat and is being told NO WAY..
It is nice to see that some care about safety and boating regs.
A boat that size would be a death trap with a 40
only a matter of time before something happens
 
It's all about personal judgement. You know whether it will work more than any of us.


Overpowering boats isn't like some of you make it out to be. Guys on scream and fly have boats over powered by as much as 100hp. And I'm not talking about huge boats.
 
Like it has been stated.. the hp rating is there for a reason...
I am a safety rep at work and we get these national reports about injuries every week and the one thing that all these injuries have in common is the guys all say i never thought it would happen to me I have been doing it this way for years..

just a matter of time before something bad happens.
 
https://www.youtube.com/watch?v=ZjW8HOxegec

19ft glass runabout, 632ci big block. :lol:

https://www.youtube.com/watch?v=D0sqKIjoUcw

Scream and Fly compilation

https://www.youtube.com/watch?v=7cwSEo8d-Hw
07'Jasper river run


https://www.youtube.com/watch?v=cGyPp0hHLIw&feature=related
109mph on the GPS, Stroker Bass Boat
 
I'm going to post more info on this.

It is my opinion that overpowering a boat is perfectly fine. That is, when done sensibly, and carefully.

Belief: Recreational Boats must be Coast Guard Approved (or certified).

Not True: The Coast Guard does not certify or approve recreational boats. The terms US Coast Guard Certified and US Coast Guard Approved have specific meanings defined by law. Recreational boats are certified, but it is the builder or manufacturer who must certify that their boats meet the requirements of the Federal Regulations. See https://newboatbuilders.com/pages/certified.html for more information.

The manufacturers do NOT write laws. Therefore for a recreational boat, YOU CAN exceed the rated HP. At least as far as the coast guard is concerned. Again, the manufacturer may not be OK with it, but the coast guard is....Because they are not coast guard certified.

Belief: It is illegal to exceed the horsepower rating on my boat:

Maybe; Why maybe? This is a gray area. The Federal regulation requires boat manufacturers to post a label with the recommended maximum safe horsepower for outboard powered boats. It only applies to mono-hull boats under 20 feet in length. Horsepower is determined using a formula contained in the regulation. Under Federal law a boat owner can put any size engine they want on their boat. However, the catch is, some states have passed laws making it a violation to exceed the values on the capacity label. Insurance companies also may cancel your insurance if they discover the boat has an engine that exceeds the horsepower rating. If you have an accident and an investigation shows it was related to overpowering then the owner could be held liable in a law suit by the injured parties.


If your local laws are OK with it, and your insurance company it is perfectly legal.

I am going to double check progressive. They DID want to know how fast the boat would go, and if it was used for racing. But NOT HP rating. I'll call and double check if they do care about the HP rating, and the installed HP.


As for local laws. Here in Michigan, there is NO law against overpowering. There is a speed limit on the water though. It is 55mph. It is apparently widely ignored as almost all larger glass bass boats are able to exceed that. I've never talked with anyone receiving a ticket for it.

All Great Lakes waters do not have the 55mph speed limit.


Blanket statements about it being illegal to overpower a boat are FALSE
 
It is my opinion that overpowering a boat is perfectly fine. That is, when done sensibly, and carefully.

Belief: Recreational Boats must be Coast Guard Approved (or certified).

Not True: The Coast Guard does not certify or approve recreational boats. The terms US Coast Guard Certified and US Coast Guard Approved have specific meanings defined by law. Recreational boats are certified, but it is the builder or manufacturer who must certify that their boats meet the requirements of the Federal Regulations. See https://newboatbuilders.com/pages/certified.html for more information.

The manufacturers do NOT write laws. Therefore for a recreational boat, YOU CAN exceed the rated HP. At least as far as the coast guard is concerned. Again, the manufacturer may not be OK with it, but the coast guard is....Because they are not coast guard certified.

Belief: It is illegal to exceed the horsepower rating on my boat:

Maybe; Why maybe? This is a gray area. The Federal regulation requires boat manufacturers to post a label with the recommended maximum safe horsepower for outboard powered boats. It only applies to mono-hull boats under 20 feet in length. Horsepower is determined using a formula contained in the regulation. Under Federal law a boat owner can put any size engine they want on their boat. However, the catch is, some states have passed laws making it a violation to exceed the values on the capacity label. Insurance companies also may cancel your insurance if they discover the boat has an engine that exceeds the horsepower rating. If you have an accident and an investigation shows it was related to overpowering then the owner could be held liable in a law suit by the injured parties.


If your local laws are OK with it, and your insurance company it is perfectly legal.

I am going to double check progressive. They DID want to know how fast the boat would go, and if it was used for racing. But NOT HP rating. I'll call and double check if they do care about the HP rating, and the installed HP.


As for local laws. Here in Michigan, there is NO law against overpowering. There is a speed limit on the water though. It is 55mph. It is apparently widely ignored as almost all larger glass bass boats are able to exceed that. I've never talked with anyone receiving a ticket for it.

All Great Lakes waters do not have the 55mph speed limit.


Blanket statements about it being illegal to overpower a boat are FALSE


I want to hear more.I agree on above.

Most inland lakes have speed limits but the Great Lakes as long as your off shore aways have none that I'm aware of.
 
I'm not really worried about personal safety with it, going more than 25-30 mph on water feels insanely fast to me, so I wouldn't push it over that. My main concern is damage to the boat. As far as I can tell there is no law in NC covering hp. Some waters here have a hp limit but just require you to remove the prop before getting on the water. I did find this information on iboats.


Eldocraft Eldosport V
https://www.iboats.com/Eldocraft__Eldosport_V__1978/bp/64b111659r2

Eldocraft Edlosport VI
https://www.iboats.com/Eldocraft__Eldosport_VI__1978/bp/64b111661r0

I'm not sure if my but is just the V model with a console or if it might be another model. the decals were flaking off when I bought it. I know that it had Eldosport VC on it.
 
gillespiej03 said:
I'm not really worried about personal safety with it, going more than 25-30 mph on water feels insanely fast to me, so I wouldn't push it over that. My main concern is damage to the boat. As far as I can tell there is no law in NC covering hp. Some waters here have a hp limit but just require you to remove the prop before getting on the water. I did find this information on iboats.


Eldocraft Eldosport V
https://www.iboats.com/Eldocraft__Eldosport_V__1978/bp/64b111659r2

Eldocraft Edlosport VI
https://www.iboats.com/Eldocraft__Eldosport_VI__1978/bp/64b111661r0

I'm not sure if my but is just the V model with a console or if it might be another model. the decals were flaking off when I bought it. I know that it had Eldosport VC on it.



I would start with the weights of the engine you have on it, and the weight of the engine you are going to put on it.
Post some pictures of the transom area. If you are really concerned you can make modifications to strengthen the transom.
 

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