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Old 16 July 2015, 23:37   #1
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Northwind motor repower advice

I have a 17ft Northwind extreme with a 90 hp Honda 4 stroke it runs great but I need some more power.

Does anyone else have this boat, if so what motor are you running? What is your top speed?

I would like to put a Honda 150 on there but thats an additional 120lbs over the current motor.

Can the boat handle the additional weight?
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Old 17 July 2015, 01:05   #2
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Whats your top speed now? Your rib is pretty rare so finding someone with one might be a search. Im in a similar position as you. I have a Honda 90 and want more power but I need to be less than 400lbs. You can do a new F115 or a DF140. Both come in less than 400 lbs. No info plate on your rib that says max weight?
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Old 17 July 2015, 01:23   #3
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my top speed right now is about 28 knots at high altitude I dont know what it does at sea level.

Unfortunately the boat doesn't have a max weight plate on it

I wanted to stick with a honda but the Suzuki is considerably lighter

Right now I am getting 4.5 mpg running at 5200 rpms

what kind of fuel consumption can I expect with a 150?
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Old 25 June 2016, 15:11   #4
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Are there any marine engineers who are members on here who can share their thoughts?


I want to add a T-Top
Flood Lights
Captain's shock mitigating seat

Either 150, 175 or 200 hp outboard

Is this going to be too much weight?






Here is the same model boat with a 250hp jet drive

https://www.oceanlist.com/boat-for-s...treme-17-57625
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Old 26 June 2016, 01:18   #5
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The 17' Northwind RIB was most likely designed by Steve Pollard at Specialty Marine in Oregon, he designed my 34' Northwind RIB...he'd probably be a good guy for you to chat with...
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Old 26 June 2016, 03:41   #6
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Hi Troy

thanks for the response

are you refering to SpecMar?

Aluminum RIBS (Rigid Inflatable Boat) | Aluminum Boat Plans & Designs by Specmar
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Old 26 June 2016, 03:51   #7
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Quote:
Originally Posted by Ribdude View Post
Hi Troy

thanks for the response

are you refering to SpecMar?
Yep, that's him...Steve did a lot of the designs for Northwind back in the day...
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Old 26 June 2016, 19:27   #8
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Yep, that's him...Steve did a lot of the designs for Northwind back in the day...
I talked to him today, hes a super nice guy.... Steve indeed designed my boat he said it could handle the weight but I would most likely need to add some weight in the bow.

the question is do I go with a 175 or a 200?

It would be nice if I can add a fuel tank in the bow to compensate for the additional stern weight
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