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Dec 30th, 2023
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 Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7693570
06/26/12 08:04 PM
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Joined: Apr 2010
Posts: 27,617
patriot07
TFF Guru
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TFF Guru
Joined: Apr 2010
Posts: 27,617 |
Stick a 115 on there and be done with it. No reason to worry about structural or reliability issues for an extra 5 mph. Not worth it. 115 will be cheaper to buy/maintain and will use less gas anyway.
Life can only be understood backwards; but it must be lived forwards.
- Soren Kierkegaard
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7694272
06/26/12 10:26 PM
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Joined: Jan 2005
Posts: 1,909
heybaylor
Extreme Angler
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Extreme Angler
Joined: Jan 2005
Posts: 1,909 |
no law in Texas about overpowering..
Insurance covers , tell them the horepower..
25hp equals about 2.5 mph increase ..rpm is rpm
more noticed on low/end
heybaylor
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7694307
06/26/12 10:33 PM
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Joined: Feb 2010
Posts: 2,006
Steve187 (A.K.A. GETFISHED )
Extreme Angler
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Extreme Angler
Joined: Feb 2010
Posts: 2,006 |
According to the above: Are you of the opinion that overpowering your boat and overpowering the boats max HP rating are two different things?
Yes I am as I dont know any different. I assumed that the max HP rating for the boat was the bench mark. Is there a differenc in over powering a boat vs. overe powering the max rated HP? Well, I'm not sure I can answer that question. I'm thinking the max HP rating is partly based on safety. That is where I would be afraid from a liability issue. Not worth it to me.
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7694980
06/27/12 01:08 AM
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Joined: Apr 2007
Posts: 2,165
Team Brown Stripe
Extreme Angler
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Extreme Angler
Joined: Apr 2007
Posts: 2,165 |
We go through this every time someone asks about going over what the recommended hp is. 
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7695443
06/27/12 02:45 AM
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Joined: Sep 2009
Posts: 4,800
FZ1
TFF Team Angler
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TFF Team Angler
Joined: Sep 2009
Posts: 4,800 |
You're forgetting the other component of power rating. It's the weight of the bigger motor! Too heavy and you'll be taking water over the transom,everytime you slow down.
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7695659
06/27/12 03:41 AM
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Joined: Apr 2012
Posts: 125
BIGKAHUNA
OP
Outdoorsman
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OP
Outdoorsman
Joined: Apr 2012
Posts: 125 |
Well, I'm not sure I can answer that question. I'm thinking the max HP rating is partly based on safety. That is where I would be afraid from a liability issue. Not worth it to me.
Safety is a huge issue as well as what the boat will physically handle without comprimising structural integrity. I know max ratings are on the conservative side which is why I asked. If the metric of 2.5mph per 25HP is correct - a 150 really would only put me a little less than 3 mph faster. If the boat hull will handle the weight and torque of the motor I dont see a huge issue.
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7695732
06/27/12 04:02 AM
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Joined: Jan 2005
Posts: 21,682
Pat Goff
TFF Guru
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TFF Guru
Joined: Jan 2005
Posts: 21,682 |
There is NO law in Texas on what you hang on what. Just like I can drop a 427 in a vega, if you've got the itch, go scratch it.
There are plenty of insurance companies that will be more than happy to insure what you've got (progressive) and as far as structural damage, speed warp or whatever, well, you're on your own, if it craters, I guess you learned a lesson, if it doesn't then you're a genius.
I've put:
115 on a 40 rated.
90 on a 60 rated.
225 on a 150 rated.
Currently run a 90 on a 300lb 15' scooter, no idea what it would rate for, it's a homemade hull, but it's perfect for what I use it for.
Pat Goff Seadrift TX ![[Linked Image]](https://i.ibb.co/X48Kbbq/scooter-shallow.jpg)
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Re: How bad is it to over power your boat?
[Re: Pat Goff]
#7695789
06/27/12 04:19 AM
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Joined: Apr 2012
Posts: 125
BIGKAHUNA
OP
Outdoorsman
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OP
Outdoorsman
Joined: Apr 2012
Posts: 125 |
There is NO law in Texas on what you hang on what. Just like I can drop a 427 in a vega, if you've got the itch, go scratch it.
There are plenty of insurance companies that will be more than happy to insure what you've got (progressive) and as far as structural damage, speed warp or whatever, well, you're on your own, if it craters, I guess you learned a lesson, if it doesn't then you're a genius.
I've put:
115 on a 40 rated.
90 on a 60 rated.
225 on a 150 rated.
Currently run a 90 on a 300lb 15' scooter, no idea what it would rate for, it's a homemade hull, but it's perfect for what I use it for.
115 on a 40!!!  Is that Genius or just huge kahoney's? Like I said - my intent is not seek out a huge motor for power...I just want to know what to do if I find a deal on 125-150hp motor that is too good to pass up. A little over but not tooo much. I would prefer to find a 115 or a 120 but who knows what will turn up on the market when I get serious about a repower.
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7696260
06/27/12 12:34 PM
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Joined: Jul 2007
Posts: 7,154
opus
TFF Celebrity
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TFF Celebrity
Joined: Jul 2007
Posts: 7,154 |
What is your transom height 15 20 25 mine has a 20 and its rated for a 120 and backwash's pretty bad would hate to see what the weight of 2 extra cylinders would do mabe someone knows the weight difference I dont
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7696303
06/27/12 12:48 PM
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Joined: Jan 2005
Posts: 1,909
heybaylor
Extreme Angler
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Extreme Angler
Joined: Jan 2005
Posts: 1,909 |
[quote=Pat Goff]There is NO law in Texas on what you hang on what. Just like I can drop a 427 in a vega, if you've got the itch, go scratch it.
There are plenty of insurance companies that will be more than happy to insure what you've got (progressive) and as far as structural damage, speed warp or whatever, well, you're on your own, if it craters, I guess you learned a lesson, if it doesn't then you're a genius.
I've put:
115 on a 40 rated.
90 on a 60 rated.
225 on a 150 rated.
Currently run a 90 on a 300lb 15' scooter, no idea what it would rate for, it's a homemade hull, but it's perfect for what I use it for.
115 on a 40!!! Is that Genius or just huge kahoney's? Ask Pat how to perform a breach turn, or hole shot in 1 foot of water.......
heybaylor
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Re: How bad is it to over power your boat?
[Re: Team Brown Stripe]
#7696320
06/27/12 12:52 PM
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Joined: Oct 2005
Posts: 20,755
kingdad101
TFF Guru
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TFF Guru
Joined: Oct 2005
Posts: 20,755 |
We go through this every time someone asks about going over what the recommended hp is. maybe 'we' should all call Ronnie..
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7696426
06/27/12 01:22 PM
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Joined: Apr 2007
Posts: 2,165
Team Brown Stripe
Extreme Angler
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Extreme Angler
Joined: Apr 2007
Posts: 2,165 |
That's why you give it a little throttle when you come off plane. It allows you to surf the back wash instead of it coming over the transom and getting your back wet.
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Re: How bad is it to over power your boat?
[Re: kingdad101]
#7696528
06/27/12 01:48 PM
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Joined: Apr 2007
Posts: 2,165
Team Brown Stripe
Extreme Angler
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Extreme Angler
Joined: Apr 2007
Posts: 2,165 |
We go through this every time someone asks about going over what the recommended hp is. maybe 'we' should all call Ronnie.. Call whoever you feel comfortable taking advice from… There are a lot of knowledgeable guys on here that have run and still run insured boats with more HP than their boat is rated for.
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Re: How bad is it to over power your boat?
[Re: BIGKAHUNA]
#7697162
06/27/12 04:02 PM
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Joined: Aug 2002
Posts: 2,063
DLALLDER
Extreme Angler
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Extreme Angler
Joined: Aug 2002
Posts: 2,063 |
Take a look at the HP rating of the Ranger 518 and the ll8, exactly the same size & same boat but 50hp difference. Ranger said the difference was because of a structure difference and after more questions & research, the difference is in the transom. Another reason not to go beyond the manufactures rating is if you fish tournaments, you may enter but you will not win any money when they find out.
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