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Want to repower my 13' sport
bigut
#1 Print Post
Posted on 08/31/11 - 11:38 AM
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I have a 1993 40 hp on it now, I want to put a higher horse power on it. I do not want to for the speed. I go fishing in boynton beach, fl and have to go through a very dangerous inlet. the wave can be either flat or 5 foot caused by weekend warriors w/ the huge boats. My friend has a 70 hp yamaha and looks smaller than my 40 hp
any thoughts on this.

 
CES
#2 Print Post
Posted on 08/31/11 - 11:54 AM
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What year is your hull? If' you're going through that inlet, I'm sure you'll want the higher (20" ) transom for sure....to also accomodate the higher HP you're desiring.

I've seen 13' Whalers with 50's on them......and they haul the mail too. Personally, I wouldn't go higher than a 50hp on a 13'.

What size and type boat does your 70hp friend have?


Edited by CES on 08/31/11 - 11:55 AM
Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
 
Joe Kriz
#3 Print Post
Posted on 08/31/11 - 12:22 PM
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His personal page shows a "Custom" 1970 13' model with a modified and raised transom.

Not sure who modified and filled in the transom but I would make sure the transom is solid before overpowering that transom.

Max rated HP for that 13' model is 40HP.........

Here is what your transom looked like when it was original.
Look at the 1970 photo.
http://www.whalercentral.com/viewpage...age_id=155

 
Phil T
#4 Print Post
Posted on 08/31/11 - 2:14 PM
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If you don't want the higher horsepower for speed, why do you want more?

If performance/acceleration you should take a close look at propeller selection. Some props do better than others. It could be you need a prop with vent plugs or less pitch.

Please clarify what problem you are trying to solve so we can provide appropriate advice.


1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT
 
CES
#5 Print Post
Posted on 08/31/11 - 2:50 PM
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When I was a kid, a 40hp on a 13' was more than enough to get through that very same inlet. We used to run up and down the Intercoastal in 13's all the time like some wild children. I think a 40 is more than enough but then again I'm not in your shoes.

Instead of repowering that 13', why don't you consider a more capable vessel??


Cliff
1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
 
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